Combined MODIS BRDF Albedo NBAR band 7 data from the MCD43D68 product across the globe, August 10, 2020.
View full-size imageThe MCD43D68 Version 6.1 Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Nadir BRDF-Adjusted Reflectance (NBAR) dataset is produced daily using 16 days of Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data at 30 arc second (1,000 meter (m)) resolution. Data are temporally weighted to the ninth day which is reflected in the Julian date in the file name. This Climate Modeling Grid (CMG) product covers the entire globe for use in climate simulation models. Due to the large file size, each MCD43D product contains just one data layer.
MCD43D62 through MCD43D68 are the NBAR products of the MCD43D BRDF/Albedo product suite for MODIS bands 1 through 7. The NBAR algorithm removes view angle effects from directional reflectances to model the values as if they were collected from a nadir view at local solar noon.
Users are urged to use the band specific quality flags to isolate the highest quality full inversion results for their own science applications as described in the User Guide.
MCD43D68 is the NBAR for MODIS band 7.
Validation at stage 3 has been achieved for all MODIS BRDF/Albedo products. Further details regarding MODIS land product validation for the MCD43 data products are available from the MODIS Land Team Validation site.
| Characteristic | Description |
|---|---|
| Collection | Combined MODIS |
| DOI | 10.5067/MODIS/MCD43D68.061 |
| File Size | ~206 MB |
| Temporal Resolution | Daily |
| Temporal Extent | 2000-02-16 to Present |
| Spatial Extent | Global |
| Coordinate System | Geographic Latitude and Longitude |
| Datum | N/A |
| File Format | HDF-EOS |
| Geographic Dimensions | Global |
| Characteristic | Description |
|---|---|
| Number of Science Dataset (SDS) Layers | 1 |
| Columns/Rows | 43200 x 21600 |
| Pixel Size | ~1000 m |
| SDS Name | Description | Units | Data Type | Fill Value | No Data Value | Valid Range | Scale Factor |
|---|---|---|---|---|---|---|---|
| Global_BRDF_Albedo_NBAR_Band7 | NBAR band 7 | N/A | 16-bit signed integer | 32767 | N/A | 0 to 32766 | 0.001 |
The corresponding MCD43D31 data file provides product quality information.
For complete information about known issues please refer to the MODIS/VIIRS Land Quality Assessment website.