BRDF-Albedo Model Parameters 16-Day L3 0.05Deg CMG V004Entry ID: MCD43C24
Abstract: Decommisioned Product
The 16-day 0.05 degree global BRDF/Albedo parameter product (MCD43C2) is a level-3 Climate Modeling Grid that provides the model parameters used to create the MODIS Global Albedo product (MCD43C1). The MCD43C2 product is offered on a flat latitude/longitude grid in HDF-EOS format. Three BRDF model parameter values are given for each of 10 wavelength bands (7 MODIS Land ... Bands, 459-2155 nm, in addition to 3 broad bands compiled from 300-700 nm, 700-5000 nm, and 300-5000 nm). These three weighting parameters (fiso , fvol , fgeo ) are associated with the RossThickLiSparseR BRDF semi-empirical model which best describes the scattering (anisotropy) of each pixel. The data are stored band interleaved by pixel. Extensive quality information (in a bit-packed format) is also provided (3600 rows by 7200 columns).
The global measures of albedo are derived averages that are computed from the 16-day 1-km global albedo product (MCD43B3). The 1-km global albedo is computed by integrating the Bi-directional Reflectance Distribution Function (BRDF), which describes the characteristic anisotropy of the land surface. The MODIS BRDF parameters (MCD43B1) are the best fit model weights determined by inverting the multi-date, multi-angular, cloud-free, atmospherically corrected surface reflectance observations acquired by MODIS over a 16-day period. These parameters can be used in a forward version of the model to fully reconstruct the surface BRDF and thus correct directional reflectances to a common view geometry or to compute the integrated black-sky (at any desired solar zenith angle) and white-sky albedos (as is done for MOD43C1). Alternately, the parameters can be used directly with a simple polynomial to easily estimate the black-sky albedo with good accuracy for any desired solar zenith angle.
MCD products are generated using a combination of Terra and Aqua acquisitions to optimize data quality.
NOTE: These 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 Characteristics
Area = Global
Image Dimensions = 3 (3600x7200x10 row/column/band)
Average File Size = ~1638 MB
Resolution = 0.05 degree (~5 km)
Projection = Latitude/Longitude Grid
Data Type Albedo = 16-bit Signed Integer
Data Type Quality = 32-bit Unsigned Integer
Data Format = HDF-EOS
Science Data Sets (SDS) = 4
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Data Set Citation
Dataset Originator/Creator: Land Processes Distributed Active Archive Center (LP DAAC
Dataset Title: MODIS/Terra and Aqua BRDF/Albedo Snow-free Quality 16-Day L3 Global 0.05Deg CMG V004
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: U.S. Geological Survey
Version: V004Online Resource: https://lpdaac.usgs.gov/
Start Date: 2000-02-18
Latitude Resolution: 0.05 Deg
Longitude Resolution: 0.05 Deg
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Quality For more information on potential sensor-related anomalies, consult the following URL: http://landweb.nascom.nasa.gov/cgi-bin/QA_WWW/newPage.cgi?fileName=...
Access Constraints Decommissioned product.
Use Constraints None
Data Set Progress
Role: TECHNICAL CONTACT
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
LP DAAC User Services U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center 47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Moderate Resolution Imaging Spectroradiometer (MODIS) publications written by the MODIS Science Team: [available online at http://modis.gsfc.nasa.gov/sci_team/pubs/]
National Aeronautics and Space Administration, 2000, MODIS data products catalog (EOS AM platform): [Greenbelt, Maryland], Goddard Space Flight Center, http://modis.gsfc.nasa.gov/data/dataprod/index.php.
National Aeronautics and ... Space Administration, revised 2004, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 261 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/sites/default/files/publications/data_p...].
National Aeronautics and Space Administration, 2000, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 256 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/sites/default/files/publications/data_p...].
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-12-18
Last DIF Revision Date: 2015-06-03