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| EDG Data Set Name | ShortName |
|---|---|
| MODIS/Terra Surface Reflectance Daily L3 Global 0.05Deg CMG V005 | MOD09CMG |
| Version | Acquisition Range | Science Quality Status |
|---|---|---|
| 005 | February 24, 2000 - | Validated Stage 1 |
V005 MOD09CMG Changes (abbreviated Points of Interest below)
V005 MOD09CMG Science Data Sets (specifications for data layers)
V005 MOD09CMG Quality Control Bit Legend
V005
Surface Reflectance Accuracy
| MODIS Daily Surface Reflectance Climate Modeling Grid June 26, 2007 | |
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Data Set Characteristics: Area: Global File Size: ~985 MB Projection: Latitude/Longitude Data Format: HDF-EOS Dimensions: 3600 x 7200 rows/columns Resolution: 0.05 degrees (5600 meters) Science Data Sets (SDS HDF Layers): 21 |
A cloudy day in June 2007 is represented with general clarity in
this global granule of MOD09CMG. A broad pixel resolution of
5600-m is especially workable in climate models.
The slashes of black between overpasses are likely to be filled in by the next day's acquisition. |
V005 Change Points of Interest:
- Reduced number of data products: MOD09GST, MOD09GHK, MODMGGAD, MODPT1KD, MODPTHKM encapsulated within MOD09GA
- Reduced file volume: internal compression
- Improved aerosol retrieval
Product Description
The MODIS Surface Reflectance products provide an estimate of the
surface spectral reflectance as it would be measured at ground
level in the absence of atmospheric scattering or absorption.
Low-level data are corrected for atmospheric gases and aerosols,
yielding a level-2 basis for several higher-order gridded level-2
(L2G) and level-3 products.
MOD09CMG provides Bands 1-7 in a daily level-3 product gridded on a simple 0.05 degree (5600-meter) Geographic projection. Data for each pixel is selected on the basis of low solar zenith angle, minimum Band 3 (blue) reflectance, and absence of cloud from level-3 intermediate files. Science Data Sets provided for this product include reflectance values for Bands 1-7, brightness temperatures for Bands 20, 21, 31, and 32, solar and view zenith angles, relative azimuth angle, ozone, granule time, and quality assessment.
Version-5 MODIS/Terra Surface Reflectance products are validated, meaning that product uncertainties are well defined over a range of representative conditions. Although there may be later improved versions, these data are ready for use in scientific publications.
Retrieve the MOD09CMG.5 product through the LP
DAAC Data Pool
Via Search Tool: http://e4eil01u.ecs.nasa.gov:22000/WebAccess/drill?attrib=esdt&esdt=MOD09CMG.5&group=MOLT
Via FTP Directory: ftp://e4ftl01u.ecs.nasa.gov/MOLT/MOD09CMG.005/
Order Data through the EOS Data Gateway
(http://edcimswww.cr.usgs.gov/pub/imswelcome/)
EOS Data Gateway Search Tips
| Data Center: | LPDAAC |
| Sensor: | MODIS |
| Dataset: | MODIS/Terra Surface Reflectance Daily L3 Global 0.05Deg CMG V005 |
| Geographic Extent: | Global |
| Temporal Extent: | 2000-02-24 to present |
Product Information
Contact Information
LP DAAC User Services
U.S. Geological Survey (USGS)
Earth Resources Observation and Science Center (EROS)
47914 252nd Street
Sioux Falls, SD 57198-0001
Phone:
605-594-6116
Toll Free:
866-573-3222
866-LPE-DAAC
Fax:
605-594-6963
Email:
LPDAAC@eos.nasa.gov
Web:
http://LPDAAC.usgs.gov
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