SMEX03 AMSR-E: Daily Soil Moisture and Brightness Temperatures for Brazil

Brazil is the geographic focus of this Level-3 daily gridded data set from the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E). It contains surface soil moisture, vegetation/roughness water content interpretive information, and brightness temperatures. The data includes quality control variables for assessment.

Use Cases

• Monitoring agricultural drought based on daily surface soil moisture measurements.
• Validating land surface models using gridded brightness temperature data.
• Studying vegetation water content and surface roughness interpretive information.
• Assessing data quality for satellite-derived soil moisture products using the provided QC variables.

Strengths

• Cross-platform presence on datagov and nasa_earthdata signals importance and broad availability.
• Provides multiple derived geophysical variables including soil moisture and brightness temperatures.
• Includes quality control variables for data assessment.

Limitations

• Documentation support is explicitly limited, as it was provided solely by Principal Investigators and not reviewed by NSIDC.
• Key metadata such as row count, column names, and exact file size are unknown across all sources.
• Sources conflict on the 'last updated' date, with datagov showing 2026-04-09 and nasa_earthdata showing 2003-12-31.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite remote sensing via the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E).

Freshness

2026-04-09 22:57:34.259149 (from datagov, conflicting with nasa_earthdata date)

Geography

Brazil