This image is a false-color representation of the Local_Solar_Noon SDS in MCD43C2 for data acquired between January 17 and February 1, 2007. It shows the zenith angle at local solar noon for each 0.05 degree pixel.
The MODerate-resolution Imaging Spectroradiometer (MODIS) BRDF/Albedo Snow-free Quality product (MCD43C2) is similar to the MCD43C1 Parameters product except that it describes only snow-free conditions in the other Albedo and NBAR products. It includes model parameters and the overall quality of snow-free pixels. These data are 16-day composites provided as a level-3 product projected to a 0.05 degree (5600-meter) latitude/longitude Climate Modeling Grid (CMG).
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 | Global |
File Size | ~137 MB |
Projection | Latitude/Longitude Grid |
Data Format | HDF-EOS |
Dimensions | 3600 x 7200 rows/columns |
Resolution | 0.05 degrees (5600-meter) |
Science Data Sets (SDS HDF Layers) | 33 |
Data Sets for MODIS Terra+Aqua BRDF/Albedo Snow-free Quality 16-Day L3 Global 0.05Deg CMG V005 (MCD43C2):
Science Data Sets (HDF Layers) 33 |
UNITS |
BIT TYPE |
FILL |
VALID RANGE |
MULTIPLY BY SCALE FACTOR |
---|---|---|---|---|---|
BRDF_Quality | Quality Byte, no units | 8-bit unsigned integer | 255 | 0–254, (0–4 used) | na |
Local_Solar_Noon | Quality Byte, degrees | 8-bit unsigned integer | 255 | 0–254, (0–90 used) | na |
Percent_Inputs | Quality Byte, percent | 8-bit unsigned integer | 255 | 0–254, (0–100 used) | na |
Snow-free BRDF_Albedo_Parameter1_Band1 (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_Band2 (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_Band3 (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_Band4 (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_Band5 (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_Band6 (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_Band7 (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_vis (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_nir (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter1_shortwave (Isotropic-iso) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_Band1 (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_Band2 (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_Band3 (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_Band4 (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_Band5 (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_Band6 (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_Band7 (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_vis (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_nir (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter2_shortwave (RossThick-vol) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_Band1 (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_Band2 (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_Band3 (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_Band4 (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_Band5 (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_Band6 (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_Band7 (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_vis (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_nir (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
Snow-free BRDF_Albedo_Parameter3_shortwave (LiSparseR-geo) | BRDF parameters, no units | 16-bit signed integer | 32767 | 0–32766 | 0.0010 |
The table below lists the four Science Data Sets representing Snow-free Quality in the BRDF/Albedo CMG products, with applicable QC bit legends.
Note 1: Percent_Snow is not present in “MCD43C2 BRDF/Albedo Snow-free Quality”, as the value would by definition of the product always be 0.
Note 2: Local_Solar_Noon, Percent_Inputs, and Percent_Snow do not utilize their full 0–254 range (see below).
Bit Comb. | BRDF_Albedo_Quality |
0 | best quality, 75% or more with best full inversions |
1 | good quality, 75% or more with full inversions |
2 | mixed, 75% or less full inversions and 25% or less fill values |
3 | all magnitude inversions or 50% or less fill values |
4 | 50% or more fill values |
255 | FillValue |
Local_Solar_Noon | |
0–254 | Zenith Angle at local solar noon (0–90 degrees) |
255 | FillValue |
Percent_Inputs | |
0–254 | Percent of the processed finer resolution data which contributed to this CMG pixel (0–100%) |
255 | FillValue |
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Sioux Falls, SD 57198-0001
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