Geometric parameter data for MODIS band 4 used to derive Bidirectional Reflectance Distribution Function and Albedo values. The dataset is produced daily using 16 days of Terra and Aqua MODIS data at 30 arc second resolution, covering the entire globe. It is generated by LPCLOUD for NASA's Earthdata platform.
Use Cases
- Deriving albedo values for MODIS band 4 using the geometric parameter alongside isotropic and volumetric parameters.
- Incorporating the geometric parameter into climate simulation models for the entire Climate Modeling Grid.
- Isolating highest quality full inversion results for band 4 using the band-specific quality flags described in the user guide.
- Analyzing daily surface reflectance dynamics by utilizing the temporally weighted data centered on the ninth day.
Strengths
- Daily production using 16 days of MODIS data from two satellites (Terra and Aqua).
- Global coverage at 30 arc second (approximately 1,000 meter) resolution.
- Data are temporally weighted to a specific ninth day for consistency.
Limitations
- Each product file contains just one data layer due to large file size, requiring multiple files for full parameter set.
- Users must manually apply quality flags to isolate highest quality results, as described in the user guide.
- Known issues exist and require consultation of the MODIS/VIIRS Land Quality Assessment website.
Provenance
- Source
- NASA Earthdata via LPCLOUD.
- Collection Method
- Produced daily using 16 days of Terra and Aqua MODIS data.
- Time Range
- Daily coverage.
- Freshness
- Daily
- Geography
- Global.