This is a representation of the first of the three model parameters used to reconstruct surface anisotropic effects and thus correct directional reflectences to a common view geometry, or to compute integrated albedos. The colors describe isotropic weighting parameters for data acquired between February 26 and March 13, 2001 over Central America including the Yucatan Peninsula, El Salvador, Honduras, Nicaragua, and some of Costa Rica (h09v07).
The MODerate-resolution Imaging Spectroradiometer (MODIS) BRDF/Albedo Model Parameters product (MCD43A1) contains three-dimensional (3D) data sets providing users with weighting parameters for the models used to derive the Albedo and BRDF products (MCD43A3 and MCD43A4). The models support the spatial relationship and parameter characterization best describing the differences in radiation due to the scattering (anisotropy) of each pixel, relying on multi-date, atmospherically corrected, cloud-cleared input data measured over 16-day periods.
Both Terra and Aqua data are used in the generation of this product, providing the highest probability for quality input data and designating it as an MCD, meaning Combined, product.
Version-5 MODIS/Terra+Aqua BRDF/Albedo products are Validated Stage 1, meaning that accuracy has been estimated using a small number of independent measurements obtained from selected locations and time periods and ground-truth/field program efforts. Although there may be later improved versions, these data are ready for use in scientific publications.
Temporal Coverage | February 24, 2000 - |
Area | ~10 x 10 lat/long |
File Size | ~41 MB |
Projection | Sinusoidal |
Data Format | HDF-EOS |
Dimensions | 2400 x 2400 rows/columns |
Resolution | 500 meters |
Science Data Sets (SDS HDF Layers) | 11 |
Science Data Sets for MODIS Terra+Aqua BRDF/Albedo Model Parameters 16-Day L3 Global 500m SIN Grid V005 (MCD43A2):
Science Data Sets (HDF Layers) 11 |
Dimensions 3D (BIP) | UNITS | BIT TYPE | FILL | VALID RANGE | MULTIPLY BY SCALE FACTOR |
BRDF_Albedo_Parameters_Band1 | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_Band2 | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_Band3 | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_Band4 | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_Band5 | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_Band6 | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_Band7 | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_vis | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_nir | 3D Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Albedo_Parameters_shortwave | 3D= Parameter (iso, vol, geo) | Reflectance, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
BRDF_Shape_Indicators | 3D Shape Field | Ratio or coefficient, no units | 8-bit unsigned integer | 255 | 0–254 | 0.04, plus Additional Offset = 25.0 |
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In the event that data distributed from the Land Processes DAAC are incorporated into your research, please supply the following acknowledgment within your published work: "These data are distributed by the Land Processes Distributed Active Archive Center (LP DAAC), located at the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center (lpdaac.usgs.gov)." If possible, please e-mail or send us reprints/citations of papers or oral presentations based on data obtained from the LP DAAC (see below for mailing address and e-mail address). This will help us to stay informed of how the data are being utilized.
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U.S. Geological Survey (USGS)
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
Sioux Falls, SD 57198-0001
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U.S. Geological Survey (USGS)
Center for Earth Resources Observation and Science (EROS)
47914 252nd Street
Sioux Falls, SD 57198-0001
Phone Number: | 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 |