AVIRIS Total Suspended Solids Maps for Mississippi River Delta

3.7-5.4 meter resolution maps of total suspended solids concentration in water surfaces across the Atchafalaya and Terrebonne Basins in Louisiana. The dataset was developed by NASA using AVIRIS-NG airborne spectrometer data from 2015 and 2016, validated with coincident field measurements. It provides spatially explicit estimates of concentration in milligrams per liter.

Use Cases

• Modeling sediment flux and deposition in the Mississippi River Delta floodplain.
• Calibrating and validating satellite-derived water quality algorithms using high-resolution airborne spectrometry.
• Assessing the impact of seasonal or annual changes on suspended solids concentration in coastal basins.
• Studying the relationship between geomorphic landforms and near-surface water chemistry in fluvial systems.

Strengths

• Data is validated with coincident field measurements, supporting model accuracy.
• Provides high spatial resolution estimates between 3.7 and 5.4 meters.
• Covers two major basins (Atchafalaya and Terrebonne) within a significant delta system.
• Cross-platform presence on Data.gov and NASA EarthData indicates recognized importance.

Limitations

• Exact row count, file size, and specific column names are not provided by any source.
• Conflicting last updated dates exist: Data.gov lists 2026-03-12, while NASA EarthData lists 2016-10-18.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Airborne remote imagery from the AVIRIS-NG spectrometer combined with coincident field measurements for development and validation.

Time Range

2015-2016

Freshness

2026-03-12

Geography

Atchafalaya and Terrebonne Basins in Southern Louisiana, USA, within the Mississippi River Delta floodplain.