[Personnel: Last_Name='MODAPS OPERATION TEAM']
MODIS/Aqua Surface Reflectance Daily L2G Global 500m SIN Grid V005Entry ID: MYD09GHK5
Abstract: The MODIS Surface Reflectance Daily L2G Global 500m SIN Grid product
(MYD09GHK) 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 Level-1B
pixels that pass the Level-1B quality control. The correction uses
band 26 to detect cirrus clouds, the approach used in MYD04 and MYD05
for water vapor, aerosol correction, and NCEP 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 the
generation of 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).
Data Set Characteristics:
Area: ~10 degrees x 10 degrees lat/long
Image Dimensions: 2400 x 2400 rows/columns
File Size: 126 MB
Resolution: 500 meters
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 10
MODIS/Aqua Version-5 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.
Data Set Citation
Dataset Originator/Creator: MODAPS
Dataset Title: MODIS/Aqua Surface Reflectance Daily L2G Global 500m SIN Grid V005
Dataset Publisher: NASA
Data Presentation Form: Remote Sensing ImageOnline Resource: http://lance.nasa.gov/
Latitude Resolution: 500 m
Longitude Resolution: 500 m
Horizontal Resolution Range: 500 meters - < 1 km
Quality Sensor anomalies may be present.
Access Constraints None.
Use Constraints None.
Data Set Progress
Role: TECHNICAL CONTACT
Phone: 301-731-2917, 1-866-506-6347 (toll-free - US only)
Email: opsdist at sigmaspace.com
National Aeronautics and Space Administration, 2000, MODIS data
products catalog (EOS AM platform): [Greenbelt, Maryland], Goddard
Space Flight Center, http://modis.gsfc.nasa.gov.
National Aeronautics and Space Administration, 1999, 1999 EOS
reference handbook, a guide to NASA's Earth Science Enterprise and the
Earth Observing System: Greenbelt, Maryland, Goddard Space Flight
Center, 361 p. [available online in pdf format at
Creation and Review Dates
DIF Creation Date: 2010-10-06
Last DIF Revision Date: 2011-05-11