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Sonar bathymetry data for water channels in the Mississippi River Delta of coastal Louisiana. The dataset was collected during the NASA Delta-X Campaign in 2021, with in-situ surveys conducted in the Atchafalaya and Terrebonne basins. Measurements include depth, date, time, and location, and were used to generate a digital elevation model.
License details are not explicitly stated ('other-license-specified'). The 2026 update date on Data.gov conflicts with the 2021 date on NASA Earthdata, suggesting a potential metadata artifact rather than new data.