Landsat GeoTiff Imagery for Gulf Coast Sediment Analysis

SANDS provides Landsat 5 and Landsat 7 daytime GeoTiff images analyzing sediment redistribution after hurricanes along the Gulf of America coastline from September 11, 2000, to September 8, 2008. The dataset, created by NASA for the Geological Survey of Alabama, focuses on a subsetted coastal region spanning 31-27N latitude and 90-84.25W longitude. These seasonal data support storm-related coastal process studies.

Use Cases

• Analyzing seasonal sediment transport patterns using time-series Landsat imagery.
• Modeling coastal erosion and deposition changes following hurricane events.
• Calibrating regional sediment redistribution models with georeferenced satellite data.
• Studying long-term (2000-2008) shoreline evolution in the Gulf of America.

Strengths

• Provides an 8-year temporal series from 2000-09-11 to 2008-09-08 for longitudinal analysis.
• Combines data from two satellite sources, Landsat 5 and Landsat 7, for consistency.
• Focuses on a specific, well-defined geographic region (31-27N, 90-84.25W).

Limitations

• Critical metadata conflicts exist: 'last updated' dates are 2008-09-08 on NASA Earthdata and 2026-03-12 on Data.gov, suggesting possible platform errors.
• Core technical details like row count, file size, and specific column/band information are unavailable across all sources.
• License is ambiguously listed as 'other-license-specified' without clear terms.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Daytime satellite imagery from Landsat 5 and Landsat 7, subsetted and provided to the Geological Survey of Alabama for analysis.

Time Range

2000-09-11 to 2008-09-08

Freshness

2008-09-08 23:59:59

Geography

Gulf of America coastline in Alabama and portions of Florida (31-27N latitude, 90-84.25W longitude).