SMEX04 ENVISAT ASAR Radar Images for Arizona Soil Moisture

Arizona, USA, is the regional study area for this collection of ENVISAT ASAR browse images from the 2004 Soil Moisture Experiment (SMEX04). The dataset was produced by the National Aeronautics and Space Administration (NASA). It provides visual data for a specific field campaign conducted in 2004.

Use Cases

• Analyzing radar backscatter signatures over different land covers in Arizona.
• Providing visual context for soil moisture validation studies from the SMEX04 campaign.
• Supporting the development of satellite-based soil moisture estimation models.

Strengths

• Data originates from a controlled NASA field experiment (SMEX04).
• Focuses on a specific, well-documented geographic region (Arizona, USA).
• Cross-platform presence on Data.gov and NASA Earthdata indicates established provenance.

Limitations

• No column names, row counts, or specific file sizes are provided by any source.
• Sources conflict on the last updated date (2003 vs. 2026), casting doubt on maintenance.
• The dataset consists of browse images, which are likely previews, not the primary scientific data.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Acquired by the ENVISAT ASAR instrument during the SMEX04 field campaign.

Time Range

2004

Freshness

2026-03-12 21:35:34.751625

Geography

Regional study area of Arizona, USA.