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EDG Data Set Name
MODIS/Terra Surface Reflectance Daily L2G Global 500m ISIN Grid

Granule Shortname
MOD09GHK

Data Set Characteristics
Area = ~ 10° x 10° lat/long
Image Dimensions = 2400 x 2400 rows/columns
File Size = 50-500 MB
Resolution = ~500 meters
Projection = Integerized Sinusoidal
Data Format = HDF-EOS
Science Data Sets (SDSs) = 10

Product Description
The MODIS Surface Reflectance Daily L2G Global 500m ISIN Grid product, MOD09, is a seven-band product computed from the MODIS Level 1B land bands 1-7. The product is an estimate of the surface spectral reflectance for each band as it would have been measured at ground level if there were no atmospheric scattering or absorption. The correction scheme includes corrections for the effect of atmospheric gases, aerosols, and thin cirrus clouds; it is applied to all non-cloudy MOD35 Level 1B pixels that pass the Level 1B quality control. The correction uses band 26 to detect cirrus clouds, MOD05 for water vapor, MOD04 for aerosols, and MOD07 for ozone; the best available climatology data are used if the MODIS water vapor, aerosol, or ozone products are unavailable. The Level 2G surface reflectance product is the input for product generation for several land products: 8-day Surface Reflectance, Vegetation Indices (VIs), Bidirectional Reflectance Distribution Function (BRDF), thermal anomaly, snow/ice, and Fraction of Photosynthetically Active Radiation/Leaf Area Index (FPAR/LAI).

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MODIS/TERRA SURFACE REFLECTANCE DAILY L2G GLOBAL 500M ISIN GRID V003

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Data Center:	LPDAAC
Sensor:	MODIS
Dataset:	MODIS/Terra Surface Reflectance Daily L2G Global 500m ISIN Grid
Geographic Extent:	Type Lat/Long Range or Draw on Map
Temporal Extent:	August 29, 2002 (2002241) - October 7, 2002 (2002280)

Product Information

Product Description (http://landval.gsfc.nasa.gov/MODLAND/surfrad.htm)

User Guide (http://modis-sr.ltdri.org/html/surfref.htm)

Algorithm Theoretical Basis Document (ATBD) (http://modis.gsfc.nasa.gov/data/atbd/atbd_mod08.pdf)

MODIS Standard Data Products Catalog (http://modis.gsfc.nasa.gov/data/dataprod/index.php)

EOS Data Products Handbook Volume 1 (2000) (http://eospso.gsfc.nasa.gov/eos_homepage/for_scientists/data_products/vol1.php)

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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