2012 :: 2011 :: 2010 :: 2009 :: 2008 :: 2007 :: 2006
2012
NASA IceBridge NSERC L1B Geolocated Meteorologic and Surface Temperature Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge NSERC L1B Geolocated Meteorologic and Surface Temperature Data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge NSERC L1B Geolocated Meteorologic and Surface Temperature Data catalog page.
NASA IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength Data for 2012 Greenland Now Available at NSIDC
NASA IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength data for 2012 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength catalog page.
NASA IceBridge DMS L0 Raw Imagery for 2012 Greenland Now Available at NSIDC
NASA IceBridge DMS L0 Raw Imagery for 2012 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge DMS L0 Raw Imagery catalog page.
02 October 2012
The Sea Ice Index Web Site: Now Easier to Use
While the content remains the same, the Sea Ice Index Web site has been functionally redesigned so that it is easier to find and compare earlier years of Sea Ice Index data or check up on trends and anomalies in sea ice extent.
This improvement goes hand in hand with edits to the product documentation made in July. Together, these changes make it easier to understand the information the data holds, as well as to simply find and use Sea Ice Index products. To check out the new look of the site and read the improved documentation, see Sea Ice Index.
01 October 2012
SCICEX 2000 and 2003 XCTD Data Now Archived and Available
NOAA@NSIDC has archived and made SCICEX 2000 and 2003 Expendable Conductivity, Temperature, and Depth (XCTD) data available from the SCICEX Web site. The data come from an ambitious program to utilize nuclear submarines as a platform to acquire data about the Arctic ocean. XCTD data is but one small portion of the data that has been collected during the SCICEX project. See the SCICEX Data Inventory and Locations Web page to find the 2000 and 2003 XCTD data along with other SCICEX data.
NASA Pre-IceBridge ATM L1B Qfit Elevation and Return Strength Data Now Available at NSIDC
Pre-IceBridge ATM L1B Qfit Elevation and Return Strength data for 1993 to 2008 are now available from NSIDC. For documentation, and to access data, see the Pre-IceBridge ATM L1B Qfit Elevation and Return Strength catalog page.
NSIDC Annual Customer Satisfaction Survey 2012
Dear NSIDC DAAC Users,
You may have received an email from CFI Group on behalf of NASA asking you to complete a survey of NASA Earth science data and services, which includes the National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
If you have not received the email invitation, please check your spam folders for a message sent from nasa@jangomail.com, or contact nasasurvey@cfigroup.com.
The purpose of this survey is to help NSIDC DAAC assess customer satisfaction and improve future services. NSIDC DAAC is one of twelve NASA EOSDIS data centers evaluated by this survey.
Please participate! Your feedback affects our future performance and helps to identify science needs. Thank you in advance to all of you who are willing to spend a few minutes to complete the survey.
Best regards,
NSIDC User Services
NASA IceBridge UAF Lidar Scanner L1B Geolocated Surface Elevation Triplets Data for 2011 and 2012, and Reprocessed 2009 and 2010 Data Now Available at NSIDC
IceBridge UAF Lidar Scanner L1B Geolocated Surface Elevation Triplets data for Alaska 2011 and 2012, plus reprocessed 2009 and 2010 data, are now available at NSIDC. For documentation, and to access data, see the IceBridge UAF Lidar Scanner L1B Geolocated Surface Elevation Triplets catalog page.
AMSR-E Sea Ice Products Updated
Updates are complete for following AMSR-E data products:
AMSR-E/AQUA Daily L3 6.25 km 89GHz Brightness Temperature Polar Grids
AMSR-E/Aqua Daily L3 12.5 km Tb, Sea Ice Concentration, and Snow Depth Polar Grids
AMSR-E/AQUA Daily L3 25 km Tb, Sea Ice Temperature, & Sea Ice Conc. Polar Grids
Algorithm updated to: Validated 14 – Stage 1
Summary of updates: Includes an improved land mask for Antarctica, created from a National Ice Center (NIC) landmask shapefile. The NIC shapefile is the newest ice shelf definition, completed by NIC Science Department in June 2011. The shoreline was developed from ENVISAT and RADARSAT imagery from October 2009 until April 2010.
AMSR-E/Aqua Daily L3 100 km Sea Ice Drift Polar Grids
Algorithm updated to: Beta 03
Summary of updates: Includes browse imagery. Reprocessing will span entire AMSR-E mission. Users should note that the Beta 02 algorithm was not publicly released.
Reprocessing from the beginning of the mission onward is currently underway for these products. We will notify registered users when reprocessing is complete. Please contact NSIDC User Services with inquiries regarding these products.
NASA IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles Data for 2012 Greenland Now Available at NSIDC
NASA IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles data for 2012 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
IceBridge Scintrex CS-3 Cesium Magnetometer L0 Raw Magnetic Field Data for 2012 Greenland Now Available at NSIDC
NASA IceBridge Scintrex CS-3 Cesium Magnetometer L0 Raw Magnetic Field data for 2012 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Scintrex CS-3 Cesium Magnetometer L0 Raw Magnetic Field catalog page.
NASA IceBridge DMS L1B Geolocated and Orthorectified Images for 2012 Greenland Now Available at NSIDC
NASA IceBridge DMS L1B Geolocated and Orthorectified Images for 2012 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge DMS L1B Geolocated and Orthorectified Images catalog page.
Updated NSIDC IceBridge Data Portal Now Includes Antarctica
The IceBridge data portal now includes Antarctica and Greenland, and provides access to all available Operation IceBridge science data through the ftp hierarchy. To use the portal, go to the IceBridge Data Portal Interface.
Reprocessing Complete for AMSR-E/Aqua L1A Data
The Japan Aerospace Exploration Agency (JAXA) has completed reprocessing of the AMSR-E/Aqua L1A Raw Observation Counts data set to Version 3. These Version 3 data are now available from the beginning of the AMSR-E mission through 04 October 2011, when the AMSR-E sensor stopped operating. The new version includes improved geometric accuracy and a switch to a new HDF version, from 4.2r1 to 4.2r4.
Also included with Version 3 are an additional 18 days of data spanning 01 June 2002 through 18 June 2002, which were previously unavailable. An assessment of these data collected during the initial AMSR-E evaluation period indicated that the quality of the observations is high enough to release to AMSR-E data users. Since it contains the most up-to-date algorithm available, we recommend working with Version 3 data set. For information and ordering options, see the product catalog page.
NSIDC will continue to distribute the Version 2 AMSR-E/Aqua L1A Raw Observation Counts data set until 15 February 2013, when it will be removed from the archive.
Please contact NSIDC User Services with inquiries regarding these products.
Subscribe to NSIDC Catalog Atom Feed
By subscribing to the NSIDC Catalog Atom Feed, you can obtain descriptions of all of our data sets, with links to the data sets and metadata. You can receive regular alerts about new and updated data sets. http://nsidc.org/feeds/data/nsidc.xml
17 August 2012
PAIG Grant Helps Preserve World Data Center History
The National Snow and Ice Data Center (NSIDC) had humble beginnings when the U.S. World Data Center (WDC) for Glaciology moved to Boulder, Colorado in 1976. A National Research Council recommendation and an agreement between NOAA and the University of Colorado resulted in the NSIDC designation in 1982. Thanks to a Preserve America Initiative Grant (PAIG), this history has been organized, digitized, and made accessible to the public. To read about the history of NSIDC and the WDC, access the historical materials, and learn more about PAIG, see the First 25 Years: The History of the WDC for Glaciology and NSIDC in Boulder, Colorado Web page.
Ice Core Chemistry from the Norwegian-U.S. Scientific Traverse of East Antarctica Now Available
Ice core chemistry from the Norwegian-U.S. Scientific Traverse of East Antarctica, IPY 2007-2009 is now available from The Antarctic Glaciological Data Center (AGDC) at NSIDC. Data and documentation may be accessed through the catalog page.
Sea Ice Index Update: Daily Data and Improved Documentation Now Available
NOAA@NSIDC is pleased to announce that the Sea Ice Index data archive now has daily as well as monthly ice extent numbers for the northern and southern hemispheres. The product documentation has also been overhauled to include an explanation of how these are made and to give a clearer and complete description of all Sea Ice Index products. The documentation now includes the following:
- Flow charts to make data processing steps easier to follow.
- Explanation on how the median edge position is determined and why it is used. The median edge is the pink line on the monthly extent images and the orange line on the daily extent images.
- Clearer explanation of coverage and resolution.
- More information on accuracy.
- Shows how to use the Browse Image Spreadsheet Tool (BIST) to quickly compare images from past years.
- Includes a short section on how the product has evolved, from 2002 into 2012.
To access the data and the new documentation, see the Sea Ice Index Web site.
NASA IceBridge Sigma Space Photon Counting Lidar L2 Geolocated Nadir Photon Elevations Data Now Available at NSIDC
NASA IceBridge Sigma Space Photon Counting Lidar L2 Geolocated Nadir Photon Elevations data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Sigma Space Photon Counting Lidar L2 Geolocated Nadir Photon Elevations catalog page.
NASA IceBridge KT19 IR Surface Temperature Data Now Available at NSIDC
NASA IceBridge KT19 IR Surface Temperature data for 2012 Arctic sea ice and land ice are now available from NSIDC. For documentation, and to access data, see the IceBridge KT19 IR Surface Temperature catalog page.
NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles Data for 2012 Greenland Now Available at NSIDC
NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles data for 2012 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Data for 2010 Greenland Now Available at NSIDC
NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness data for 2010 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Data catalog page.
NASA IceBridge HiCARS 1 L2 Geolocated Ice Thickness Replacment Data for 2009 Antarctica Now Available at NSIDC
NASA IceBridge HiCARS 1 Level-2 Geolocated Ice Thickness replacement data for 2009 Antarctica are now available from NSIDC. On July 23, 2012, Version 01 2009 Antarctica data were replaced by Version 01.1. The V01.1 2009 Antarctica data are re-organized, and include aircraft orientation and surface and bed reflection coefficient information not contained in the V01 data. For documentation, and to access data, see the IceBridge HiCARS 1 L2 Geolocated Ice Thickness catalog page.
NASA IceBridge BGM-3 Gravimeter L2 Geolocated Free Air Anomalies Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge BGM-3 Gravimeter L2 Geolocated Free Air Anomalies data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge BGM-3 Gravimeter L2 Geolocated Free Air Anomalies catalog page.
NASA IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies for 2011 Antarctica Now Available at NSIDC
NASA IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies catalog page.
NASA IceBridge HiCARS 2 L2 Geolocated Ice Thickness 2011 Antarctica Data Now Available at NSIDC
NASA IceBridge HiCARS 2 L2 Geolocated Ice Thickness data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge HiCARS 2 L2 Geolocated Ice Thickness Data catalog page.
NASA IceBridge LVIS L0 Raw Ranges Data for 2012 Greenland Now Available at NSIDC
NASA IceBridge LVIS L0 Raw Ranges data for 2012 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L0 Raw Ranges catalog page.
NASA IceBridge MCoRDS L2 Ice Thickness Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge MCoRDS L2 Ice Thickness data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge MCoRDS L2 Ice Thickness catalog page.
GLAS Release 31 Data No Longer Distributed by NSIDC
NSIDC is no longer distributing GLAS Release 31 data. GLAS Release 33 data continues to be distributed from our long term archive. Descriptions of Release 33 and Release 31 can be found on the NSIDC Data Releases and Past Data Releases Web pages. For more information about GLAS data products, see the ICESat/GLAS Data Web site. For questions and concerns, please contact NSIDC User Services.
NASA IceBridge Riegl Laser Altimeter L2 Geolocated Surface Elevation Triplets Data for 2009 and 2011 Antarctica Now Available at NSIDC
IceBridge Riegl Laser Altimeter L2 Geolocated Surface Elevation Triplets data for 2009 and 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Riegl Laser Altimeter L2 Geolocated Surface Elevation Triplets catalog page.
New Antarctic Snow Chemistry Data from AGDC
The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to announce the release of a new data set, Light Absorption Coefficients for Soluble Species in Snow, Dome C, Antarctica.
Reminder to Users of Sea Ice Concentration Data
As of 20 June 2012, NSIDC has discontinued the DMSP SSM/I Daily and Monthly Polar Gridded Bootstrap Sea Ice Concentrations data set. In its place, NSIDC will continue to offer the following products, which are regularly updated using data from the DMSP-F17 SSMIS instrument:
- Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS
- Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data
- Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Sea Ice Concentrations
If you have questions or need assistance with these products, please contact NSIDC User Services.
NASA IceBridge DMS L3 Photogrammetric DEM Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge DMS L3 Photogrammetric DEM data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the NASA IceBridge DMS L3 Photogrammetric DEM catalog page.
New Antarctic glacier data from AGDC
The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to annouce the release of a new data set, Subglacial Water Flow Paths Under Thwaites Glacier, West Antarctica.
NASA IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength catalog page.
NASA IceBridge ATM L2 2011 Antarctica Data Now Available at NSIDC
The NASA IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge ATM L2 Icessn Elevation, Slope, and Roughness catalog page.
NASA IceBridge ATM L1B 2011 Antarctica Data Now Available at NSIDC
The NASA IceBridge ATM L1B Qfit Elevation and Return Strength data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge ATM L1B Qfit Elevation and Return Strength catalog page.
NASA IceBridge POS/AV L1B Data for 2012 Greenland Now Available at NSIDC
NASA IceBridge POS/AV L1B Corrected Position and Attitude Data for 2012 Greenland are now available from NSIDC. For documentation, and to access the data, see the IceBridge POS/AV L1B Corrected Position and Attitude Data catalog page.
NASA IceBridge CAMBOT L1B Geolocated Images for 2011 Antarctica Now Available at NSIDC
The NASA IceBridge CAMBOT L1B Geolocated Images for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge CAMBOT L1B Geolocated Images catalog page.
New Antarctic glacier data from AGDC
The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to annouce the release of a new data set, Coastal and Terminus History of the Eastern Amundsen Sea Embayment, West Antarctica, 1972 to 2011.
NASA IceBridge GPS L1B Time-Tagged Real-Time Position and Attitude Solution Data Now Available at NSIDC
NASA IceBridge GPS L1B Time-Tagged Real-Time Position and Attitude Solution data for 2010 and 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge GPS L1B Time-Tagged Real-Time Position and Attitude Solution catalog page.
NASA IceBridge Sigma Space Photon Counting Lidar L1B Time-Tagged Nadir Photon Ranges Data for 2010 Antarctica Now Available at NSIDC
NASA IceBridge Sigma Space Photon Counting Lidar L1B Time-Tagged Nadir Photon Ranges data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Sigma Space Photon Counting Lidar L1B Time-Tagged Nadir Photon Ranges catalog page.
NASA IceBridge Sander Air GRAV L1B Geolocated Anomalies Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge Sander Air GRAV L1B Geolocated Anomalies Data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Sander Air GRAV L1B Geolocated Anomalies Data catalog page.
In addition, on 21 May 2012 the 2009 and 2010 Antarctica gravity data were replaced by Version 01.3. The previous data versions were organized regionally by glacier basin. V01.3 gravity data are organized by flight lines.
NASA IceBridge Sigma Space Lidar L0 Raw Time-of-Flight Data Now Available at NSIDC
NASA IceBridge Sigma Space Lidar L0 Raw Time-of-Flight Data for 2010 and 2011 Antarctica and 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Sigma Space Lidar L0 Raw Time-of-Flight Data catalog page.
NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look Evaluation Product Now Available at NSIDC
The NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look evaluation product is now available from NSIDC. For documentation, and to access data, see the IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look Web page.
IceBridge evaluation products are derived from published IceBridge data sets, and are made available to the public for review and exploration of their usefulness and appropriateness for further study and research. For more on evaluation products, see the IceBridge Evaluation Products Web page.
New NSF Antarctic data available from AGDC
The Antarctic Glaciological Data Center (AGDC) at NSIDC has published new data sets. AGDC archives and distribtues data from National Science Foundation Office of Polar Programs-funded researchers. The following data sets are now available:
- Methane Concentrations from the WAIS Divide Ice Core (WDC06A), 60 to 11,300 ybp (NSIDC-0509)
- Annual Layers at Siple Dome, Antarctica, from Borehole Optical Stratigraphy (NSIDC-0515)
- AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica (NSIDC-0517)
New Digital Elevation Model for the Antarctic Peninsula
The Antarctic Glaciological Data Center (AGDC) at NSIDC has published the ASTER GDEM 100-m Digital Elevation Model of the Antarctic Peninsula. The data set provides a 100-meter resolution surface topography Digital Elevation Model (DEM) of the Antarctic Peninsula. The DEM is based on Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) Version 1 data.
NASA IceBridge GPS/IMU L1B Primary Position and Attitude Solution Data for 2010 Antarctica Now Available at NSIDC
NASA IceBridge GPS/IMU L1B Primary Position and Attitude Solution data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge GPS/IMU L1B Primary Position and Attitude Solution Data catalog page.
NSIDC Publishes Updated MEaSUREs Greenland Glacier Site Velocity Maps
NSIDC has published an update to the NASA MEaSUREs program data set MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, supplying data for additional locations in Greenland. The data were produced from TerraSAR-X (TSX) image pairs collected from January to May 2009.
NASA IceBridge ZLS Dynamic Gravity Meter Time-Registered L1B Vertical Accelerations Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge ZLS Dynamic Gravity Meter Time-Registered L1B Vertical Accelerations data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge ZLS Dynamic Gravity Meter Time-Registered L1B Vertical Accelerations catalog page.
Lake and River Ice Database Update
The Global Lake and River Ice Phenology database has seasonal freeze-up and breakup dates as well as other descriptive ice information for 865 lakes and rivers in twelve Northern Hemisphere countries. Sixty-six of these bodies of water have records longer than 50 years. In cooperation with the Lake Ice Analysis Group (LIAG) at the University of Wisconsin, Madison, NOAA@NSIDC has updated and added to the database, increasing the number of lakes and rivers it holds by over 13 percent.
A calendar correction was made to the Lake Suwa, Japan data. Records for Lake Suwa begin in 1443, but the earliest record is for Lake Constance in Germany, from year 874. Observations were made for religious, cultural, and practical, often transportation related, reasons. For more information and to obtain the data, see the Global Lake and River Ice Phenology Web site.
NASA IceBridge LVIS L1B Geolocated Return Energy Waveforms Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge LVIS L1B Geolocated Return Energy Waveforms data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L1B Geolocated Return Energy Waveforms catalog page.
NASA IceBridge LVIS L2 Geolocated Surface Elevation Product Data for 2011 Antarctica and Replacement 2010 Greenland Data Now Available at NSIDC
NASA IceBridge LVIS L2 Geolocated Surface Elevation Product data for 2011 Antarctica and replacement data for 2010 Greenland are now available from NSIDC. All of the 2010 Greenland data for the IceBridge LVIS L2 Geolocated Surface Elevation Product data set have been replaced as of 13 April 2012. For documentation, and to access data, see the IceBridge LVIS L2 Geolocated Surface Elevation Product catalog page.
NASA IceBridge NCAR Navigation, State Parameter, and Microphysics LRT Data Now Available via NSIDC
NASA IceBridge NCAR Navigation, State Parameter, and Microphysics LRT Data for Antarctica 2011 are now available via NSIDC as brokered data from the National Center for Atmospheric Research (NCAR) Earth Observing Laboratory (EOL). For documentation, and to access data, see the IceBridge NCAR Navigation, State Parameter, and Microphysics LRT Data catalog page.
NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge Riegl Laser Altimeter L1B Time-Tagged Laser Ranges Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge Riegl Laser Altimeter L1B Time-Tagged Laser Ranges data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Riegl Laser Altimeter L1B Time-Tagged Laser Ranges catalog page.
NASA IceBridge BGM-3 Gravimeter L1B Time-Tagged Accelerations Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge BGM-3 Gravimeter L1B Time-Tagged Accelerations data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge BGM-3 Gravimeter L1B Time-Tagged Accelerations catalog page.
NASA IceBridge Geometrics 823A Cesium Magnetometer L1B Time-Tagged Magnetic Field Data For 2011 Antarctica Now Available at NSIDC
NASA IceBridge Geometrics 823A Cesium Magnetometer L1B Time-Tagged Magnetic Field data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Geometrics 823A Cesium Magnetometer L1B Time-Tagged Magnetic Field catalog page.
NASA IceBridge Paroscientific S-1000 L1B Pressure Altimeter Time-Tagged Air Pressure Data For 2011 Antarctica Now Available at NSIDC
NASA IceBridge Paroscientific S-1000 L1B Pressure Altimeter Time-Tagged Air Pressure data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Paroscientific S-1000 L1B Pressure Altimeter Time-Tagged Air Pressure catalog page.
The World's Glaciers, Inventoried
In cooperation with the World Glacier Monitoring Service (WGMS), NOAA@NSIDC has released an updated version of the World Glacier Inventory (WGI). The WGMS and the NOAA@NSIDC team jointly revised and updated the WGI based on additional sources from the literature. The database stores geographical coordinates of glacier label points and tabular information about glacier classification, area, length, orientation, and altitude range. To learn more and to access the WGI database, visit the WGI Web site.
The WGI was initiated during the International Hydrological Decade (IHD), 1965−74 and is mainly based on aerial photographs and maps of the second half of the 20th century. Since 1999, NOAA@NSIDC has worked with the WGMS to make its inventory available online. While the WGI cannot truly claim to have a complete list of the world's glaciers, with this recent update, it now provides more than 130,000 entries.
The WGI is a reference data resource for the world's glaciologists and one of NSIDC's most popular data sets. NSIDC also holds the GLIMS collection of satellite image-derived glacier outlines stored with the full complement of WGI-defined glacier characteristics. Both GLIMS and the WGI are part of the Global Terrestrial Network for Glaciers (GTN-G). The GTN-G Data Overview Web page has a summary of how GLIMS, the WGI, and other data collections are related.
Adopt a Glacier
Overall, glaciers are retreating at an alarming rate around the world in response to a warming Earth. To help promote awareness of glacier recession and to support the Roger G. Barry Resource Office for Cryospheric Studies (ROCS), ROCS has created an Adopt-a-Glacier fundraising project. Adoption of a glacier is symbolic but the money raised will allow ROCS to purchase document boxes for preserving manuscript materials in acid free folders, to purchase photo safe boxes for preserving our historic photograph collections, and to assist in the ongoing preservation, organization, and digitization of historic materials. Three glaciers are available for adoption: Arapaho, Franz Josef, and Muir. Donors receive a certificate of adoption along with a photo and facts about the glacier they have adopted. For more information or to adopt a glacier, see the Adopt-a-Glacier Web page.
NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Data Now Available at NSIDC
NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness data for 2009 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Data catalog page.
NASA IceBridge HiCARS 2 L2 Geolocated Ice Thickness Data Now Available at NSIDC
NASA IceBridge HiCARS 2 L2 Geolocated Ice Thickness data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge HiCARS 2 L2 Geolocated Ice Thickness Data catalog page.
NASA IceBridge Geometrics 823A Cesium Magnetometer L1B Time-Tagged Magnetic Field Data Now Available at NSIDC
NASA IceBridge Geometrics 823A Cesium Magnetometer L1B Time-Tagged Magnetic Field data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Geometrics 823A Cesium Magnetometer L1B Time-Tagged Magnetic Field catalog page.
NASA IceBridge Riegl Laser Altimeter L2 Geolocated Surface Elevation Triplets Data Now Available at NSIDC
IceBridge Riegl Laser Altimeter L2 Geolocated Surface Elevation Triplets data for 2010 Antarctica and 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Riegl Laser Altimeter L2 Geolocated Surface Elevation Triplets catalog page.
NASA IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies for 2010 Antarctica Now Available at NSIDC
NASA IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies catalog page.
NASA IceBridge Riegl Laser Altimeter L1B Time-Tagged Laser Ranges Data Now Available at NSIDC
NASA IceBridge Riegl Laser Altimeter L1B Time-Tagged Laser Ranges data for 2009 and 2010 Antarctica and 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Riegl Laser Altimeter L1B Time-Tagged Laser Ranges catalog page.
NASA IceBridge BGM-3 Gravimeter L1B Time-Tagged Accelerations Data Now Available at NSIDC
NASA IceBridge BGM-3 Gravimeter L1B Time-Tagged Accelerations data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge BGM-3 Gravimeter L1B Time-Tagged Accelerations catalog page.
NASA IceBridge Paroscientific S-1000 L1B Pressure Altimeter Time-Tagged Air Pressure Data Now Available at NSIDC
NASA IceBridge Paroscientific S-1000 L1B Pressure Altimeter Time-Tagged Air Pressure data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Paroscientific S-1000 L1B Pressure Altimeter Time-Tagged Air Pressure catalog page.
NASA IceBridge Scintrex CS-3 Cesium Magnetometer L1B Geolocated Magnetic Anomalies Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge Scintrex CS-3 Cesium Magnetometer L1B Geolocated Magnetic Anomalies data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Scintrex CS-3 Cesium Magnetometer L1B Geolocated Magnetic Anomalies catalog page.
NASA IceBridge DMS L1B Geolocated and Orthorectified Images for 2011 Antarctica Now Available at NSIDC
NASA IceBridge DMS L1B Geolocated and Orthorectified Images for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge DMS L1B Geolocated and Orthorectified Images catalog page.
NASA IceBridge DMS L0 Raw Imagery for 2011 Antarctica Now Available at NSIDC
NASA IceBridge DMS L0 Raw Imagery for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge DMS L0 Raw Imagery catalog page.
New data from AGDC
The Antarctic Glaciological Data Center (AGDC) at NSIDC has released new data sets relating to Antarctic firn samples, ice cores, and ice motion. The following data sets are now available for download, along with documentation describing the data.
- Microparticle, Conductivity, and Density Measurements from the WAIS Divide Deep Ice Core, Antarctica (NSIDC-0499).
- Alkanes in Firn Air Samples, Antarctica and Greenland (NSIDC-0504).
- WAIS Divide Snowpit Chemical and Isotope Measurements, Antarctica (NSIDC-0506).
- GPS Ice Flow Measurements, Allan Hills, Antarctica (NSIDC-0507).
See the data set web pages for documentation and to download data. Antarctic glaciology researchers funded by the National Science Foundation Office of Polar Programs are required to submit their data to AGDC. For more information, see the AGDC Submit Data Web page.
NASA IceBridge ATM L1B and ATM L2 2011 Greenland Data Now Available at NSIDC
The NASA IceBridge ATM L1B Qfit Elevation and Return Strength and IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge ATM L1B Qfit Elevation and Return Strength and IceBridge ATM L2 Icessn Elevation, Slope, and Roughness catalog pages.
NASA IceBridge ATM L1B and ATM L2 2011 Greenland Data Now Available at NSIDC
The NASA IceBridge ATM L1B Qfit Elevation and Return Strength and IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge ATM L1B Qfit Elevation and Return Strength and IceBridge ATM L2 Icessn Elevation, Slope, and Roughness catalog pages.
2011 [top]
Find Arctic Ocean Data from Submarines at the SCICEX Web Site
The SCICEX Web site has been improved. SCICEX is a federal interagency collaboration among the U.S. Navy, research agencies, and the marine research community to use nuclear-powered submarines for scientific studies of the Arctic Ocean. The new site includes links to data access locations, science meeting notes and presentations, history and background of the program, scientific publications, and a photo gallery. Data include sea ice thickness, water chemistry, bathymetry, hydrography, and biology measurements of the Arctic Ocean.
NASA IceBridge POS/AV L1B Data for Antarctica 2011 Now Available at NSIDC
NASA IceBridge POS/AV L1B Corrected Position and Attitude Data for Antarctica 2011 are now available from NSIDC. For documentation, and to access the data, see the IceBridge POS/AV L1B Corrected Position and Attitude Data catalog page.
NASA Pre-IceBridge LVIS L0 Raw Ranges Data for 2007 Greenland Now Available at NSIDC
NASA Pre-IceBridge LVIS L0 Raw Ranges data for 2007 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L0 Raw Ranges catalog page.
NASA IceBridge LVIS L0 Raw Ranges Data for 2011 Antarctica Now Available at NSIDC
NASA IceBridge LVIS L0 Raw Ranges data for 2011 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L0 Raw Ranges catalog page.
NASA IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength catalog page.
NASA IceBridge Sander AIRGrav L3 Bathymetry Data for 2009 Antarctica Now Available at NSIDC
NASA IceBridge Sander AIRGrav L3 Bathymetry data for 2009 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Sander AIRGrav L3 Bathymetry catalog page.
NASA IceBridge LVIS L1B Geolocated Return Energy Waveforms Data for 2010 and 2011 Greenland Now Available at NSIDC
NASA IceBridge LVIS L1B Geolocated Return Energy Waveforms data for 2010 and 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L1B Geolocated Return Energy Waveforms catalog page.
NASA IceBridge LVIS L2 Geolocated Surface Elevation Product Data for 2010 and 2011 Greenland Now Available at NSIDC
NASA IceBridge LVIS L2 Geolocated Surface Elevation Product data for 2010 and 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L2 Geolocated Surface Elevation Product catalog page.
NASA IceBridge CAMBOT L1B Geolocated Images for 2011 Greenland Now Available at NSIDC
The NASA IceBridge CAMBOT L1B Geolocated Images for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge CAMBOT L1B Geolocated Images catalog page.
MEaSUREs Antarctic data products released
NSIDC is pleased to announce the release of two Antarctic data sets, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program. The MEaSUREs program aims to develop consistent global and continent scale data records related to earth science, or Earth System Data Records (ESDRs).
- MEaSUREs InSAR-Based Antarctica Velocity Map (nsidc-0484) provides the first comprehensive, high-resolution, digital mosaic of ice motion in Antarctica. The data set was assembled from multiple satellite interferometric synthetic-aperture radar data, acquired during the International Polar Year 2007 to 2009.
- MEaSUREs Antarctic Grounding Line from Differential Satellite Radar Interferometry (nsidc-0498) provides a high-resolution map of grounding lines in Antarctica, derived using 17 years of differential satellite synthetic aperture.
NASA IceBridge UAF GPS/IMU L1B Corrected Position and Attitude Data Now Available at NSIDC
NASA IceBridge UAF GPS/IMU L1B Corrected Position and Attitude Data are now available from NSIDC. For documentation, and to access data, see the IceBridge UAF GPS/IMU L1B Corrected Position and Attitude Data catalog page.
MODIS Browse Images Unavailable
Some 12,500 Browse Images from 19 June 2002 to 10 September 2002 are unavailable for the following MODIS products: MODIS/Terra Snow Cover 5-Min L2 Swath 500m (MOD10_L2) and MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km (MOD29). NSIDC is working to recover these images and apologizes for any inconvenience.
NASA Pre-IceBridge MCoRDS L2 Ice Thickness Data Now Available at NSIDC
NASA Pre-IceBridge MCoRDS L2 Ice Thickness data are now available from NSIDC. For documentation, and to access data, see the Pre-IceBridge MCoRDS L2 Ice Thickness catalog page.
NASA Pre-IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles Data Now Available at NSIDC
NASA Pre-IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles are now available from NSIDC. For documentation, and to access data, see the Pre-IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge MCoRDS L3 Gridded Bed Map Data for 2010 Antarctica and 2011 Greenland Now Available at NSIDC
NASA IceBridge MCoRDS L3 Gridded Bed Map data for 2010 Antarctica and 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge MCoRDS L3 Gridded Bed Map catalog page.
AGDC releases new data
The Antarctic Glaciological Data Center at NSIDC has released a new data set, containing depth profiles for methane (CH4) in South Pole firn air. The profiles represent a roughly 100-year history of the isotopic composition of CH4 at South Pole Station. For more information and to access the data, see Methane Isotopes in South Pole Firn Air, 2008.
NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge MCoRDS L2 Ice Thickness Data for 2010 and 2011 Greenland Now Available at NSIDC
NASA IceBridge MCoRDS L2 Ice Thickness data for 2010 and 2011 Greenland are now available from NSIDC. In addition, CRESIS 2009 Antarctica data are now included with the MCoRDS L2 data set. For documentation, and to access data, see the IceBridge MCoRDS L2 Ice Thickness catalog page.
NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles Data for 2010 and 2011 Greenland Now Available at NSIDC
NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles data for 2010 and 2011 Greenland are now available from NSIDC. In addition, CRESIS 2009 Antarctica data are now included with the MCoRDS L1B data set. For documentation, and to access data, see the IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge HiCARS 2 L0 Raw Return Energy Amplitudes Data for 2010 Antarctica Now Available at NSIDC
NASA IceBridge HiCARS 2 L0 Raw Return Energy Amplitudes data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge HiCARS 2 L0 Raw Return Energy Amplitudes catalog page.
IceBridge Scintrex CS-3 Cesium Magnetometer L0 Raw Magnetic Field Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge Scintrex CS-3 Cesium Magnetometer L0 Raw Magnetic Field data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Scintrex CS-3 Cesium Magnetometer L0 Raw Magnetic Field catalog page.
NASA IceBridge HiCARS 1 L0 Raw Return Energy Amplitudes Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge HiCARS 1 L0 Raw Return Energy Amplitudes data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge HiCARS 1 L0 Raw Return Energy Amplitudes catalog page.
NASA IceBridge Sander Air GRAV L1B Geolocated Anomalies Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge Sander Air GRAV L1B Geolocated Anomalies Data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge Sander Air GRAV L1B Geolocated Anomalies Data catalog page.
New NOAA Climate Data Record of Sea Ice Concentration Provides Full Data Transparency and Improved Quality Assessment
In cooperation with NOAA's National Climatic Data Center (NCDC) Climate Data Record (CDR) program, NSIDC has released a CDR of sea ice concentration that has full data transparency. Transparency, in this sense, means that the input data, code, and processing steps of the data are known, well documented, and openly available. One requirement for a CDR, set forth by the U.S. National Research Council (NRC), is that the provenance of the data product must be fully known. Full provenance and traceability of the input data, code, and processing of this data set are known; thus, the data satisfy the requirements for a CDR. In addition, a CDR must be of sufficient length, consistency, reliability, and sustainability "to distinguish between artificial changes related to the observing system and real changes in climate" (NRC, 2004).
The NOAA/NSIDC CDR sea ice concentrations are derived from passive microwave instruments, using a combination of two algorithms developed at the NASA Goddard Space Flight Center (GSFC). Fields of data quality assessment information are also included in the CDR product. The files are provided in netCDF4 format (including Climate and Forecasting [CF] metadata), which is a self-describing and sustainable file format. To learn more and to access the data, see the NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration web page.
AMSR-E Instrument Failure
As of 06:58 UTC on 04 October 2011, the AMSR-E instrument on board the Aqua satellite stopped producing data due to a problem with the rotation of its antenna. NASA is currently working with the Japan Aerospace Exploration Agency (JAXA) to assess the condition of the AMSR-E instrument and consider future steps. As more information becomes available, NSIDC will post updates via RSS news feed and inform registered AMSR-E users via email. For more information or to register as an AMSR-E data user, please contact NSIDC User Services.
New AMSR-E/Aqua L1A Data Available
On 28 September 2011, Version 3 (V003) of the AMSR-E/Aqua L1A Raw Observation Counts data set was released by the Japan Aerospace Exploration Agency (JAXA). The V003 release includes improved geometric accuracy, a switch from HDF version 4.2r1 to 4.2r4, and an FTP location change.
To continue receiving these data, users should update any scripts or bookmarks to the new FTP location, ftp://n4ftl01u.ecs.nasa.gov/SAN/AMSA/AMSREL1A.003/. And to be notified by email of future updates to this product, users may register with NSIDC User Services.
NSIDC AGDC Releases New Data Sets
The Antarctic Glaciological Data Center at NSIDC is pleased to announce the release of new data sets related to the Antarctic Ice Sheet.
- Modeled Radar Attenuation Rate Profile at the Vostok 5G Ice Core Site, Antarctica (NSIDC-0501)
- GPS-Measured Ice Velocities and Strain Data from the Ross and Amundsen Sea Ice Flow Divide, West Antarctica (NSIDC-0503)
- Polarimetric Radar Data from the Ross and Amundsen Sea Ice Flow Divide, West Antarctica (NSIDC-0496)
NASA IceBridge DMS L0 Raw Imagery for 2011 Greenland Now Available at NSIDC
NASA IceBridge DMS L0 Raw Imagery for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge DMS L0 Raw Imagery catalog page.
NASA IceBridge DMS L1B Geolocated and Orthorectified Images for 2011 Greenland Now Available at NSIDC
NASA IceBridge DMS L1B Geolocated and Orthorectified Images for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge DMS L1B Geolocated and Orthorectified Images catalog page.
NASA IceBridge NSERC L1B Geolocated Meteorologic and Surface Temperature Data for 2010 Antarctica Now Available at NSIDC
NASA IceBridge NSERC L1B Geolocated Meteorologic and Surface Temperature Data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge NSERC L1B Geolocated Meteorologic and Surface Temperature Data catalog page.
NASA IceBridge BGM-3 Gravimeter L2 Geolocated Free Air Anomalies Data for 2009 Antarctica Now Available at NSIDC
NASA IceBridge BGM-3 Gravimeter L2 Geolocated Free Air Anomalies data for 2009 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge BGM-3 Gravimeter L2 Geolocated Free Air Anomalies catalog page.
Call for NSIDC DAAC Data User Feedback
In September 2011, all registered NSIDC Distributed Active Archive Center (DAAC) data users will receive an e-mail invitation from the Claes Fornell International (CFI) Group on behalf of NASA to participate in a Web-based survey about the quality and utility of NSIDC DAAC products and services. It takes approximately 10 minutes to complete this anonymous survey, and optional comment fields are provided to address your specific concerns. The NSIDC DAAC is one of twelve NASA Earth Observing System Data and Information System (EOSDIS) data centers to be evaluated by this survey.
Thank you in advance. Your feedback will help us to better serve our data user community.
If you would like to participate but are not a registered user of NSIDC DAAC data products, please contact the CFI Group at nasasurvey@cfigroup.com.
Inferred Accumulation Rate Data from Antarctica Now Available
The Antarctic Glaciological Data Center (AGDC) at NSIDC has released a new data set, Millennially Averaged Accumulation Rates for Lake Vostok. This data set consists of accumulation rates, inferred from radar data from three layers (26, 35 and 41 thousand years old) in the Vostok Subglacial Lake region.
ICESat/GLAS Release-33 Data Now Available: Laser 3A
The ICESat Science Investigator-led Processing System (I-SIPS) Team has begun reprocessing GLAS data to Release-33. ICESat/GLAS Release-33 data for the Laser 3A campaign (03 October 2004 to 08 November 2004) are now available for all GLAS products (GLA01 to GLA15). NSIDC will continue to receive other laser campaigns for Release-33 until they are all reprocessed. Until all campaigns are reprocessed, Release-31 and Release-33 will be available from NSIDC.
For more information about all of the Release-33 changes, see the ICESat/GLAS Data Releases Web page, or contact NSIDC User Services if you have any questions. For more information about ICESat/GLAS data, including ordering options, see the ICESat/GLAS Web page.
Historical IPY Data Catalog Now Available
NOAA@NSIDC and the Roger G. Barry Resource Office for Cryospheric Studies (ROCS) are pleased to announce the launch of the ROCS Archives Catalog; and with this, the completion of the International Polar Year Historical Data and Literature project - formerly known as DAHLI. Over 800 digital items (photographs, data charts, publications/literature, audio files, and even a video) relating to the first two International Polar Years (IPY) 1882-83 and 1932-33 and the International Geophysical Year (IGY) 1957-58 reside in this public, searchable catalog, most of which are available for download. To search and access the collection, see the International Polar Year Historical Data and Literature web page.
NSIDC Releases Enhanced SSM/I and AMSR-E Brightness Temperatures
A new data set is available at NSIDC, the Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures. Brightness temperatures obtained by the SSM/I and AMSR-E instruments were enhanced using the Scatterometer Image Reconstruction (SIR) algorithm, and are provided in three equal-area spatial coverages: Northern Hemisphere, Southern Hemisphere, and full global. Daily SSM/I images are available from 1995 through 2008, and twice-daily AMSR-E images are available from 2002 through 2009. For documentation and access to the data, please see the product catalog page.
NASA IceBridge POS/AV L1B Data for Greenland 2011 Now Available at NSIDC
NASA IceBridge POS/AV L1B Corrected Position and Attitude Data for Greenland 2011 are now available from NSIDC. For documentation, and to access the data, see the IceBridge POS/AV L1B Corrected Position and Attitude Data catalog page.
New EASE-Grid SSM/I-SSMIS Brightness Temperatures Available
Updated EASE-Grid SSM/I-SSMIS data are now available at NSIDC. This semi-quarterly update extends the time series of the DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures data set through 27 April 2011. The SSM/I-SSMIS EASE-Grid brightness temperatures are available in all three EASE-Grid projections: north, south, and global.
AGDC releases new ice shelf data set
The NSIDC Antarctic Glaciological Data Center (AGDC) has released a new data set, MOA-derived Structural Feature Map of the Ronne Ice Shelf. This data set provides a structural feature map of the Ronne Ice Shelf in Antarctica (also known as the Filchner-Ronne Ice Shelf).
NASA IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies for 2009 Antarctica Now Available at NSIDC
NASA IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies data for 2009 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Geometrics 823A Cesium Magnetometer L2 Geolocated Magnetic Anomalies catalog page.
NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles for 2010 Antarctica Now Available at NSIDC
NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
AMSR-E Sea Ice Drift Data Now Available from NSIDC
NSIDC has released a new sea ice data set, the AMSR-E/Aqua Daily L3 6.25 km Sea Ice Drift Polar Grids. This Level-3 gridded product includes sea ice speed and direction generated by applying the Goddard Space Flight Center (GSFC) wavelet transform algorithm to AMSR-E brightness temperatures. As this is a beta-level product, further development and updates to the algorithm are anticipated. Daily drift data are averaged over five-day intervals and are mapped to a polar stereographic grid at 6.25 km spatial resolution. Data are currently available from 01 June 2011 through the present. For further details and ordering options, see the product catalog page.
A Delivered Algorithm Package (DAP) is also available for this product. If you are interested in receiving the DAP or have any other questions, please contact NSIDC User Services.
Image-Derived Antarctic Grounding Line Data Now Available from NSIDC AGDC
The Antarctic Glaciological Data Center (AGDC) at NSIDC has released a new data set, High-resolution Image-derived Grounding and Hydrostatic Lines for the Antarctic Ice Sheet, NSIDC-0489. The data set provides grounding line and hydrostatic line locations for the Antarctic coastline and islands around Antarctica. The data are derived using customized software to combine data from Landsat-7 imagery and Ice, Cloud, and land Elevation Satellite (ICESat) laser altimetry, which were primarily collected between 1999 to 2003. For more information on AGDC data, see the AGDC Web site.
Kamb Ice Stream Strain Survey Data Now Available from NSIDC AGDC
The Antarctic Glaciological Data Center (AGDC) at NSIDC has released a new data set, Grounding Line Strain Grid Surveys, Kamb Ice Stream, Antarctica, NSIDC-0494. The data set provides the results of a field survey conducted in 2006 and 2007. For more information on AGDC data, see the AGDC Web site.
NASA IceBridge LVIS L0 Raw Ranges Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge LVIS L0 Raw Ranges data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L0 Raw Ranges catalog page.
NASA IceBridge LVIS L2 Geolocated Surface Elevation Product Data for 2011 Greenland Now Available at NSIDC
NASA IceBridge LVIS L2 Geolocated Surface Elevation Product quicklook data for 2011 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L2 Geolocated Surface Elevation Product catalog page.
NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles Data for 2010 Antarctica Now Available at NSIDC
NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge Sander Air GRAV L1B Geolocated Anomalies Data for 2010 Antarctica, and Revised 2009 Antarctica Data Now Available at NSIDC
NASA IceBridge Sander Air GRAV L1B Geolocated Anomalies Data for 2010 Antarctica and revised data for 2009 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Sander Air GRAV L1B Geolocated Anomalies Data catalog page.
Sea Ice Thickness Field Measurements Available
In cooperation with the International Arctic Research Center (IARC) at the University of Alaska, NOAA@NSIDC is providing an access point and standard metadata for the Sea Ice Experiment: Dynamic Nature of the Arctic (SEDNA) project. The SEDNA data collection is unique in that several ice thickness data sets were inter-calibrated and coordinated with monitoring of the ice pack strain-rate (horizontal deformation) and measurements of internal ice stress. This experiment was designed to improve our understanding of the relationship between sea ice thickness and dynamics. For more information and to access the data, see the SEDNA: Sea ice Experiment - Dynamic Nature of the Arctic summary page.
NASA IceBridge Sigma Space Prototype L0 Raw Time-of-Flight Data for 2009 Antarctica Now Available at NSIDC
NASA IceBridge Sigma Space Prototype L0 Raw Time-of-Flight Data for 2009 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Sigma Space Prototype L0 Raw Time-of-Flight Data catalog page.
DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures Updated
NSIDC is pleased to announce that the DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures data set has been updated. This quarterly update extends the time series of the data set through 31 March 2011. Both the data and associated documentation are available via the product catalog page. For assistance, please contact NSIDC User Services.
NASA IceBridge Riegl Laser Altimeter L0 Raw Ranges Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge Riegl Laser Altimeter L0 Raw Ranges data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Riegl Laser Altimeter L0 Raw Ranges catalog page.
NSIDC IceBridge Data Portal Now Available
The initial release of the data portal provides access to all Operation IceBridge flight reports and map-based visualization of Greenland flight tracks. Using spatial and temporal filters, you can easily visualize flight tracks, review specific details of the flights, and download the full reports. Upcoming releases will enable access to all flight tracks and the data collected on the flights. To use the portal, go to the IceBridge Data Portal Interface.
NASA IceBridge Snow Radar L1B Data for Greenland 2010 and Greenland 2009 Update Now Available at NSIDC
NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles data for Greenland 2010 are now available from NSIDC. Also, as of June 10, 2011, the 2009 Greenland binary (*.bin) files were replaced. The GPS time written in the headers of the previously published binary files contained an error. The error is corrected in the current files. If you downloaded the 2009 Greenland data prior to June 10, 2011, we suggest you re-download the *.bin files. For documentation, and to access the data, see the IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge L0 Raw Kinematics GPS Time Codes Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge L0 Raw Kinematics GPS Time Codes data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge L0 Raw Kinematics GPS Time Codes catalog page.
NASA IceBridge Geometrics 823A Cesium Magnetometer L0 Raw Magnetic Field Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge Geometrics 823A Cesium Magnetometer L0 Raw Magnetic Field data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Geometrics 823A Cesium Magnetometer L0 Raw Magnetic Field catalog page.
NASA IceBridge Flux Gate Magnetometer L0 Raw Magnetic Field Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge Flux Gate Magnetometer L0 Raw Magnetic Field data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Flux Gate Magnetometer L0 Raw Magnetic Field catalog page.
WAIS Divide Ice Core Methane Data Now Available from NSIDC AGDC
The Antarctic Glaciological Data Center (AGDC) at NSIDC has released a new data set, Methane Concentration and Chronology from the WAIS Divide Ice Core (WDC05A), NSIDC-0493. For more information on AGDC data, see the AGDC Web site.
NASA IceBridge BGM-3 Gravimeter L0 Raw Accelerations Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge BGM-3 Gravimeter L0 Raw Accelerations data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge BGM-3 Gravimeter L0 Raw Accelerations catalog page.
NASA IceBridge HiCARS 1 L2 Geolocated Ice Thickness Data for 2009 Antarctica Now Available at NSIDC
NASA IceBridge HiCARS 1 Level-2 Geolocated Ice Thickness data for 2009 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge HiCARS 1 L2 Geolocated Ice Thickness catalog page.
Updated AMSR-E/Aqua Brightness Temperatures Available
Both the AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures and AMSR-E/Aqua Daily Global Quarter-Degree Gridded Brightness Temperatures data sets have been updated. This quarterly update extends the time series of both data sets through 31 March 2011. AMSR-E brightness temperatures are available in all three EASE-Grid projections (north, south, and global), as well as global, quarter-degree latitude-longitude gridded data.
NASA IceBridge GPS L0 Raw Satellite Navigation Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge GPS L0 Raw Satellite Navigation Data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge GPS L0 Raw Satellite Navigation Data catalog page.
NASA IceBridge INS L0 Raw Inertial Navigation System Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge INS L0 Raw Inertial Navigation System Data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge INS L0 Raw Inertial Navigation System Data catalog page.
NASA IceBridge Paroscientific S-1000 L0 Pressure Altimeter Raw Air Pressure Data for 2009 and 2010 Antarctica Now Available at NSIDC
NASA IceBridge Paroscientific S-1000 L0 Pressure Altimeter Raw Air Pressure data for 2009 and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge Paroscientific S-1000 L0 Pressure Altimeter Raw Air Pressure catalog page.
NASA IceBridge MCoRDS 2010 Antarctica L2 and Reprocessed L1B Data Now Available at NSIDC
2010 Antarctica MCoRDS L2 Ice Thickness data, and reprocessed 2010 Antarctica IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles data are now available from NSIDC. The original 2010 L1B Antarctica data were processed through a temporary process with quick look data products only. V01.1 2010 L1B Antarctica data are produced from full Synthetic Aperture Radar (SAR) processing. For documentation, and to access data, see the IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles and IceBridge MCoRDS L2 Ice Thickness Data catalog pages.
NSIDC Web Site and FTP Service Interruption
On Wednesday, May 18 from 5:30 a.m. until 7:30 a.m. (USA Mountain Time) NSIDC's Web site (http://nsidc.org) and FTP server (ftp://sidads.colorado.edu) will be unavailable due to system maintenance.
Daily EASE-Grid SSMIS Brightness Temperatures Now Available
NSIDC is pleased to announce that the DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperature data for 14 December 2006 through 31 December 2010 are now available.
This update includes many new features, as described in the data set documentation, and new data from the Special Sensor Microwave Imager/Sounder (SSMIS) aboard the Defense Meteorological Satellite Program (DMSP) F-17 satellite. Because the Backus-Gilbert interpolation method is not yet compatible with the SSMIS sensor, NSIDC changed the gridding process to use the Inverse Distance Squared method and completed an intercomparison of F-13 data with F-17 data. To accommodate the sensor and interpolation changes, F-17 data are considered Version 2 (V2), which is reflected in the filenames. Lastly, the data reflect a large overlap time period between the SSM/I and SSMIS sensors from December 2006 to April 2009 so that users may conduct their own analyses on the data differences.
Geolocation and display tools are available for this data set from the EASE-Grid Data Geolocation Tools Web page.
Please also note the new FTP location for this data set. We welcome your questions at NSIDC User Services.
Preliminary Level-3 AMSR-E Data to be Discontinued
On 02 May 2011, NSIDC will discontinue distribution of Preliminary Level-3 AMSR-E data. Users who require AMSR-E data sooner than the four-day latency offered by our standard AMSR-E science products can now access near-real-time AMSR-E data through the NASA Land Atmosphere Near-real-time Capability for EOS (LANCE) data system at the AMSR-E Science Investigator-led Processing System (SIPS). For more information and to register for near-real-time AMSR-E data, visit the LANCE Web site. Please contact NSIDC User Services if you have questions.
NASA IceBridge LVIS L0 Raw Ranges Data for 2009 Greenland and 2010 Antarctica Now Available at NSIDC
NASA IceBridge LVIS L0 Raw Ranges data for 2009 Greenland and 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L0 Raw Ranges catalog page.
NASA IceBridge Ku-Band Radar L1B Data for 2010 Greenland Now Available at NSIDC
NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles data for Greenland 2010 are now available from NSIDC. For documentation, and to access data, see the IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge Reprocessed DMS L1B 2009 Antarctica Data Now Available at NSIDC
Reprocessed 2009 Antarctica IceBridge NASA DMS L1B Geolocated and Orthorectified Images are now available from NSIDC. On April 13, 2011, V01 2009 Antarctica DMS data were replaced by V01.1. The V01 2009 Antarctica DMS data required re-processing because the data were projected using the SRTMplus Digital Elevation Model (DEM). This DEM references the sea floor for all non-terrestrial locations. In addition, during re-processing, a more refined boresight model was employed and provides a more accurate attitude reference. For documentation, and to access data, see the IceBridge NASA DMS L1B Geolocated and Orthorectified Images catalog page.
Beta Release of New Search Tool, Reverb
Reverb, a new tool for searching and ordering data from NSIDC and other NASA data centers, is now available. Easily discover and access earth science data with a refreshing new view of data sets and granules. Built by ECHO, the Earth Observing System (EOS) Clearing House, Reverb not only accesses the full collection of NSIDC data sets, but each granule that the Warehouse Inventory Search Tool (WIST) currently finds. To explore the new interface and offer your valuable feedback, visit the Reverb interface Web page.
CMC Snow Depth Analysis Data Now Available for 2010
The Canadian Meteorological Centre (CMC) Daily Snow Depth Analysis data set now includes daily and monthly data, as well as monthly climatologies, for 2010. For documentation and access to data, please refer to the product catalog page.
NASA IceBridge CAMBOT L1B Geolocated Images 2010 Antarctica Data Now Available at NSIDC
The NASA IceBridge CAMBOT L1B Geolocated Images data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge CAMBOT L1B Geolocated Images catalog page.
NASA IceBridge ATM L1B and ATM L2 2010 Antarctica Data Now Available at NSIDC
The NASA IceBridge ATM L1B Qfit Elevation and Return Strength and IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge ATM L1B Qfit Elevation and Return Strength and IceBridge ATM L2 Icessn Elevation, Slope, and Roughness catalog pages.
New CollectionCaster Tool Launched
The National Snow and Ice Data Center (NSIDC) has launched the CollectionCaster, a new Web-based tool that uses a collection casting process to help scientists advertise their data sets or collections. Collection Casting helps users and computers connected to the internet discover data quickly and more efficiently using ATOM feeds that can be viewed with any desktop or browser-based feed reader. More details about the CollectionCaster tool are available at http://nsidc.org/libre/. The CollectionCaster is one of the latest data tools created by NSIDC's Libre project. The Libre project was created to help liberate science data from its traditional constraints of publication, location, and findability. Support for the Libre project is provided by NASA and the National Science Foundation.
NASA Pre-IceBridge LVIS L2 Geolocated Surface Elevation Product Data Set Now Available at NSIDC
The NASA Pre-IceBridge LVIS L2 Geolocated Surface Elevation Product data set is now available from NSIDC. For documentation, and to access data, see the NASA Pre-IceBridge LVIS L2 Geolocated Surface Elevation Product catalog page.
NSIDC's Computing Center Shutting Down for Five Days to Become More Green
The National Snow and Ice Data Center, through a grant from the National Science Foundation, is modifying its facility to become one of the most energy -efficient data centers in the United States. As a part of this effort, NSIDC will shut down our computing center from Wednesday, 30 March through Sunday, 3 April to accommodate construction. The NSIDC Web site will be available intermittently during this time, providing data documentation and other information. However, access to all NSIDC data and online services will be unavailable. We apologize for any inconvenience the limited access may cause you.
New Photos Added to the Glacier Photo Collection
Photographs of glaciers in the McMurdo Dry Valleys region of Antarctica have been added to the Glacier Photo Collection. While the valleys themselves are notably ice-free, a number of glaciers terminate in the valleys, some acting as outlets to the East Antarctic Ice Sheet. Studies show that the majority of the glaciers in this area are receding. Glaciers were photographed in the course of geologic studies and help document the conditions of the glaciers and how they may have changed. To view the photos, see the Glacier Photo Collection Search & Order Interface.
NOAA@NSIDC Team Member Attends Meeting about Finding Sea Surface Temperature Near the Sea Ice Edge
NOAA, the European Space Agency, NASA, and several other agencies sponsor the Group for High Resolution Sea Surface Temperature (GHRSST) to work on improving the quality, timeliness, and accessibility of sea surface temperature (SST) fields. Data assembly centers construct these fields and need daily high-resolution sea ice extent as input data in order to arrive at accurate SST in and near the ice edge. NOAA@NSIDC's Florence Fetterer spoke on using Multisensor Analyzed Sea Ice Extent (MASIE) data as an alternative to satellite passive microwave-derived ice extent fields at the GHRSST High Latitude Working Group meeting held in Boulder, Colorado from March 1 - 2. For more information about GHRSST, visit the GHRSST Web site. For more information about MASIE, see the MASIE Web site.
NASA IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles Data Set Now Available at NSIDC
The IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles data set is now available from NSIDC. For documentation, and to access data, see the IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles catalog page.
NSIDC Releases the Services for Analysis of the Greenland Environment (SAGE) Tool
NSIDC is pleased to announce the release of the Services for Analysis of the Greenland Environment (SAGE) tool. SAGE adds analysis capabilities and a unique interface for specific Greenland data sets. It is a tool designed to help scientists access, integrate, and analyze data related to the history and status of Greenland's ice sheet in real time using timeseries, scatterplot, histogram, and box and whisker plots. Try SAGE today and see how it can save you time and effort creating meaningful plots for your research.
New Permafrost Data Set and Associated Education Activity Published
A new data set called Soil Temperature Station Data from Permafrost Regions of Russia (Selection of Five Stations), 1880s - 2000 has been published along with an educational classroom activity for K-12 students and teachers. This data set includes soil temperature data from boreholes and air temperature data located at five stations in Russia. This data set has also been incorporated into an educational classroom activity, How Permanent is Permafrost?, that helps to explore the relationship between surface air temperature and permafrost (soil) temperature. For more information and to obtain the data, see the Soil Temperature Station Data from Permafrost Regions of Russia (Selection of Five Stations), 1880s - 2000 Web page. To see the classroom activity, see the How Permanent is Permafrost? Web page.
NOAA@NSIDC Team Member Attends SCICEX SAC Meeting
NOAA@NSIDC project manager, Ann Windnagel, attended the SCICEX Science Advisory Committee (SAC) meeting that took place January 26 - 28, 2011 in Washington D.C. The purpose of the meeting was to set the stage for Part II of the science plan and to outline the needs and plan for program sustainment. Ann Windnagel gave a presentation on NOAA@NSIDC's efforts on rescuing and archiving the historic SCICEX data over the past year. For more information about SCICEX, see the NOAA@NSIDC SCICEX Web page.
NASA IceBridge Mission Flight Reports Data Set Now Available at NSIDC
The NASA IceBridge Mission Flight Reports data set is now available from NSIDC. For documentation, and to access flight reports, see the IceBridge Mission Flight Reports catalog page.
New F17 Brightness Temperatures Available
Brightness Temperatures from the F17 satellite are now available for the DMSP SSM/I-SSMIS Polar Gridded Brightness Temperatures data set, and span the period 14 December 2006 through 19 August 2010. This recently updated data set, now at Version 4, includes brightness temperatures obtained by the Special Sensor Microwave Imager/Sounder (SSMIS) on the Defense Meteorological Satellite Program F17 (DMSP-F17) satellite.
With SSMIS, a new 91.7 GHz high-resolution channel replaces the 85.5 GHz channel of the former SSM/I instrument. NSIDC has analyzed the intercalibrated SSM/I and SSMIS data for a complete intercomparison of the F13 and F17 brightness temperatures. For more details and data access, refer to the product summary Web page.
NASA IceBridge DMS L1B and DMS L0 2010 Antarctica Data Now Available at NSIDC
NASA IceBridge DMS Level-1B Geolocated and Orthorectified Images and DMS Level-0 Raw Imagery for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge DMS Level-1B Geolocated and Orthorectified Image catalog page, and the IceBridge DMS Level-0 Raw Imagery catalog page.
Updated AMSR-E Brightness Temperatures Available
On 26 January 2011, the AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures were updated to V11 (Validated 11 - Stage 3). This update accommodates the production and distribution of near-real-time AMSR-E data through the NASA Land Atmosphere Near-real-time Capability for EOS (LANCE) system. These data are indicated by a new product maturity code, R, for near-real-time data. As no science algorithm changes were made, past data will not be reprocessed. For details regarding AMSR-E data versions and ordering options, please refer to the AMSR-E/Aqua Data Web site.
A new Delivered Algorithm Package (DAP) is available for the updated product. If you would like a DAP or have any questions, please contact NSIDC User Services.
New Iceberg Data Available from NSIDC AGDC
The NSIDC Antarctic Glaciological Data Center (AGDC) has released the data set, Climate, Drift, and Image Data from Antarctic Icebergs A22A and UK211, 2006-2007. The data set includes recordings from specialized weather stations on two icebergs, A22A and UK211 (nicknamed Amigosberg), near Marambio Station in Antarctica, collected in 2006 and 2007.
NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles 2010 Antarctica Data Now Available at NSIDC
NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles data for 2010 Antarctica are now available from NSIDC. For documentation, and to access data, see the IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles catalog page.
NASA IceBridge POS/AV L1B Corrected Position and Attitude Data for 2009 and 2010 Antarctica and Greenland Campaigns Now Available at NSIDC
NASA IceBridge POS/AV L1B Corrected Position and Attitude Data are now available for all IceBridge 2009 and 2010 Greenland and Antarctic campaigns. As of 25 January 2011, these data have been updated to Version 01.1 to reflect a change in the data source.
Data that were previously available for this data set for the 2009 Greenland and Antarctic campaigns were obtained from the Applanix System connected to the ATM instrument. There were no problems with the ATM version of the data, but the data were only available for flights on which ATM was operational. Version 01.1 contains POS/AV data collected by the Applanix System connected to the DMS instrument. The DMS version is now in use for the sake of completion across all instruments. For documentation, and to access data, see the IceBridge POS/AV L1B Corrected Position and Attitude Data catalog page.
NASA IceBridge LVIS L0 Raw Ranges data for 2009 Antarctica and 2010 Greenland Now Available at NSIDC
NASA IceBridge LVIS L0 Raw Ranges data for 2009 Antarctica and 2010 Greenland are now available from NSIDC. For documentation, and to access data, see the IceBridge LVIS L0 Raw Ranges catalog page.
Preliminary NASA IceBridge LVIS Level-1B Data for Antarctica and Greenland 2009 Now Available at NSIDC
Preliminary NASA IceBridge LVIS L1B Geolocated Return Energy Waveforms data for Antarctica and Greenland 2009 are now available from NSIDC. The current data set contains one file for 2009 Greenland and one file for 2009 Antarctica. Remaining campaign files will be made available soon. For documentation, and to access data, see the IceBridge LVIS L1B Geolocated Return Energy Waveforms catalog page.
NASA IceBridge ATM Icessn and ATM Qfit Data for Greenland 2010 Now Available at NSIDC
NASA IceBridge ATM Icessn and ATM Qfit data for Greenland 2010 are now available from NSIDC. Previously provided data were for the IceBridge CryoSat-2 underflight on 20 April 2010 only. The data sets are now complete, however, data for 24 March, 20 April, and 12 May 2010 currently are not available due to issues with aircraft attitude (pitch, roll, and heading) measured by several INS units onboard the aircraft. For documentation, and to access the data, see the catalog pages for IceBridge ATM L2 Icessn Elevation, Slope, and Roughness, and IceBridge ATM L1B Qfit Elevation and Return Strength.
NSIDC Data News
