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Earth Science Project Office

TC4 Papers

The following documents have restricted access (i.e. one needs a username and password to access them). In order to obtain these please contact Kathy Thompson

TitleAuthor
Planning and Implementation of the Tropical Composition, Cloud and Climate Experiment (TC4) Brian Toon
Low ozone bubbles observed in the tropical tropopause layer during the TC4 campaign in 2007 Irina Petropavlovskikh
In situ and lidar observations of subvisible cirrus clouds during TC4 Sean Davis
The effect of local and regional sources on the isotopic composition of nitrous oxide in the tropical free troposphere and tropopause layer Kristie Boering
Convective and wave signatures in ozone profiles over the equatorial Americas: Views from TC4 (2007) and SHADOZ Anne Thompson
The Detailed Structure of the Tropical Upper Troposphere and Lower Stratosphere as Revealed by Balloonsonde Observations Of Water Vapor, Ozone, Temperature and Winds During The NASA TCSP And TC4 Campaigns Rennie Selkirk
Directly Measured Heating Rates of a Tropical Subvisible Cirrus Cloud Anthony Bucholtz
Observations of ozone production in a dissipating tropical convective cell during TC4 Gary A. Morris
Evidence of Nitric Acid Uptake in Warm Cirrus Anvil Clouds during the NASA TC4 Campaign Eric Scheuer
The influence of convection on the water isotopic composition of the TTL and tropical stratosphere David Sayres
Remote Sensing of Radiative and Microphysical Properties of Clouds during TC4: Results from MAS, MASTER, MODIS, and MISR Michael D. King
Cloud Properties Determined From GOES and MODIS Data During TC4 Patrick Minnis
Evaluation of Satellite-based Upper-troposphere Cloud-top Height Retrievals in Multilayer Cloud Conditions During TC4 Fu-Lung Chang
GOES-12 Observations of Convective Storm Variability and Evolution During the TC4 Field Program Kristopher M. Bedka
Comparison of GOES-retrieved and in-situ Measurements of Deep Convective Anvil Cloud Microphysical Properties During TC4 Christopher R. Yost
A Meteorological Overview of the TC4 mission Leonhard Pfister
Lightning-generated NOx seen by OMI during NASA's TC4 experiment Eric J. Bucsela
Cirrus spatial heterogeneity and ice crystal shape: Effects on remote sensing of cirrus optical thickness and effective crystal radius H. Eichler
Observations and modeling of ice cloud shortwave spectral albedo during the Tropical Composition, Cloud and Climate Coupling Experiment Bruce C. Kindel
Apparent and Real Absorption of Solar Spectral Irradiance in Heterogeneous Ice Clouds K. Sebastian Schmidt
Convective Distribution of Tropospheric Ozone and Tracers in the Central American ITCZ Region: Evidence from Observations During TC4 Melody Avery

ESPO News:

ICESCAPE News

OIB Arctic Mar-May 2012

HS3 Aug-Sep 2012

OIB Antarctic, Oct-Nov 2011

HS3, Aug-Sep 2011

ATTREX Jan-Feb 2013


SEAC4RS Aug-Sep 2012

Seagrass Apr-May, Nov 2012 & Jan 2013

Impacts of Climate on the Eco-Systems and Chemistry of the Arctic Pacific Environment (ICESCAPE) was a multi-year NASA shipborne project. The bulk of the research took place in the Beaufort and Chukchi Sea’s in the summers of 2010 and 2011. Although the mission has been complete for some time, there are now two new news articles on the subject. CNN and Latin Times
Dates: Apr-May, Nov 2012 and Jan 2013
Aircraft: SIERRA
Location(s): Cedar Key, FL, Key West, FL and Republic of Trinidad and Tobago
Science Goals: High Resolution Assessment of Carbon Dynamics in Seagrass and Coral Reef Biomes; Science objectives are to image sea grass and coral for understanding carbon dynamics in addition to improving methodologies for calibrating orbital imagery in the littoral zone.
ESPO Role/Lead: ESPO is providing logistic support - Quincy Allison and Marshal Chaidez
Dates: Mar 12 - May 25 2012
Aircraft: NASA WFF P-3, LaRC HU-25 Falcon
Location(s): Thule and Kangerlussuaq Greenland, Fairbanks AK
Science Goals: Ongoing investigation of the thinning and movement of Antarctic Sea and Land Ice. Data collected during IceBridge will help scientists bridge the gap in polar observations between NASA's Ice, Cloud and Land Elevation Satellite (ICESat) -- in orbit since 2003 -- and ICESat-2, planned for late 2015. ICESat stopped collecting science data in 2009, making IceBridge critical for ensuring a continuous series of observations. IceBridge will use airborne instruments to map Arctic and Antarctic areas once a year.
ESPO Role/Lead: ESPO providing Deployment Management - Kent Shiffer (DM), Jhony Zavaleta (Deputy DM).
Others: Jhony Zavaleta returned once again to Thule Greenland at the end of May to complete wrap up the mission details with the Thule Air Base operations.
Accomplishments this past month: Operation IceBridge is now complete. The LaRC falcon has completed all of its expected flight lines and has returned to Langley. The WFF P-3 has also completed an unprecedented Cryospheric campaign and returned to the US on May 25th.. Flying over 328 total hours including 252 science hours at an estimated distance of 82,815 nautical miles over the arctic and island of Greenland. All P-3 and Falcon flight reports can be viewed on the ESPO OIB web site at: Web Site
Dates: October 5 - November 22, 2011
Aircraft: NASA DC-8, NSF G-V
Location(s): Punta Arenas, Chile
Science Goals: Ongoing investigation of the thinning and movement of Antarctic Sea and Land Ice. Data collected during IceBridge will help scientists bridge the gap in polar observations between NASA's Ice, Cloud and Land Elevation Satellite (ICESat) -- in orbit since 2003 -- and ICESat-2, planned for late 2015. ICESat stopped collecting science data in 2009, making IceBridge critical for ensuring a continuous series of observations. IceBridge will use airborne instruments to map Arctic and Antarctic areas once a year.
ESPO Role/Lead: ESPO providing Deployment Management - Kent Shiffer (DM), Jhony Zavaleta (Deputy DM).
Other details: This is the first time the NSF G-V has joined the OIB team and will fly the LVIS instrument at high altitude. (Land, Vegetation, and Ice Sensor).
Web Site
Dates: Aug 1 - Oct 14, 2012
Aircraft: 2 Global Hawks (AV-1 and AV-6)
Location(s): WFF (Wallops)
Science Goals: To investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin.
ESPO Role/Lead: ESPO providing Project Management - Marilyn Vasques (PM), Bernie Luna (Deputy PM)
Other details: This will be the first deployment of the GH to a remote location and the first use of its 2nd ground set. It will also be the first time NASA will fly 2 GHs on the same mission. Both GHs will not fly a storm at the same time but shortly after one returns to base, the other can take off. The Payload Mobile Operations Facility (PMOF) is expected to transit to WFF July 6. More info at HS3Web site
Current plan
Integration begins: July 1
GH 872 (AV-6) transits to WFF: Aug 29
Science flights begin Sept 1
GH 871 (AV-1) transits to WFF Sept 7
Science flight complete Oct 5
Accomplishments this past month: Science team telecon conducted May 23rd. Preparations for integration and deployment continue. Science, operations, safety and E/PO telecons continue and operations, safety and budget documentation is in work. During a flight of the ongoing KQX/DARPA tests, the Global Hawk flew within 40 feet of each other. Although this is not a requirement for HS3, it is a major milestone for KQX. After a few weeks of analysis, they will fly again and attempt to connect the aircraft for air-to-air refueling. The two GHs were to be turned over to HS3 June 30. HS3 just got a request to explain the impact of giving KQX 2 more weeks. The impact will be severe and the justification will be presented by HS3 June 12.
Dates: Jan-Feb, 2013
Aircraft: Global Hawk AV-6
Location(s): DFRC
Science Goals: Further investigate the water vapor physics and the chemistry of the tropical tropopause
ESPO Role/Lead: ESPO providing Project Management - Dave Jordan (PM), Jhony Zavaleta (Deputy PM).
Other details: Web Site
Dates: August-September 2012 (exact dates not yet set)
Aircraft: NASA ER-2, DC-8, NSF G-V
Location(s): Utapao Thailand
Science Goals: This scientific experiment will address key science questions regarding the influence of Asian emissions on clouds, climate, and air quality as well as fundamental satellite observability of the system. SEAC4RS will facilitate progress in understanding and improving predictive capability for changes in the ozone layer, climate forcing, and air quality associated with changes in atmospheric composition.
ESPO Role/Lead: ESPO providing Project Management - Kent Shiffer (PM), Jhony Zavaleta (Deputy PM).
Other details: Other aircraft may join the SEAC4RS team including the Royal Thai Rainmaking operation. SEAC4RS Web Site
Accomplishments this past month: The DC3 NSF/NASA mission, (preliminary mission to SEAC4RS) is currently deployed with the NASA DC-8 and NSF G-V aircraft in Salina KS. ESPO team members Kent Shiffer and Sue Tolley are planning to visit Thailand again to finalize deployment site particulars on June 16th. They will be joined by an ER-2 pilot and will review the facilities and provide a safety briefing to the airport.
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File last changed: Wed, 19 May 2010 12:54:40 -0700