SWOT Level 1B: High-Rate Single-Look Complex SAR Imagery

SWOT Level 1B data provides high-rate, single-look complex Synthetic Aperture Radar images for each antenna, gridded into tiles approximately 64x64 km2. Each tile represents a half swath from the left or right side of the satellite's full observation path. The data is distributed in the netCDF-4 file format.

Use Cases

• Analyzing surface water elevation and ocean topography from single-look complex radar imagery.
• Developing or validating SAR processing algorithms using high-rate, gridded data tiles.
• Conducting geophysical studies of coastal zones and inland water bodies based on 64x64 km2 spatial tiles.
• Integrating half-swath radar data into larger mosaic products for regional analysis.

Strengths

• Data is processed to single-look complex SAR images, providing a high level of detail for scientific analysis.
• Cross-platform presence on Data.gov and NASA EarthData indicates official curation and importance.
• Spatial tiles are consistently gridded to approximately 64x64 km2, facilitating systematic processing.

Limitations

• Critical metadata is missing: no column names, row counts, or file sizes are provided in any source.
• The license is ambiguously listed as 'other-license-specified' on Data.gov, requiring further investigation.
• Documentation gaps exist, as descriptions are identical across platforms but lack technical specifications.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite-based Synthetic Aperture Radar (SAR) observation and processing.

Time Range

null

Freshness

2026-04-09 21:47:31.157433

Geography

Global coverage, gridded into ~64x64 km2 tiles representing half-swath segments.