Delta-X Delft3D Sediment Model for Mississippi River Delta Site

Delft3D hydrodynamic model outputs for intensive site 421 in the Terrebonne Basin of the Mississippi River Delta. This dataset simulates water velocity, depth-averaged sediment concentrations, and annual inorganic mass accumulation rates for the Delta-X Spring and Fall deployments in 2021. The model was produced by NASA and includes all files required to run the simulations.

Use Cases

• Calibrating and validating sediment transport models using water velocity and sediment concentration outputs.
• Analyzing intra-annual variability in water levels and suspended sediment concentrations for mass accumulation studies.
• Studying fluvial and coastal geomorphic processes in a major delta system.
• Assessing hydrodynamic conditions during specific 2021 deployment periods in the Terrebonne Basin.

Strengths

• Model includes all required simulation files for reproducibility.
• Outputs cover two distinct seasonal deployments (Spring and Fall 2021).
• Provides derived annual inorganic mass accumulation rates from modeled variability.

Limitations

• Core metadata such as row count, file size, and specific column names are unavailable across all platforms.
• Conflicting last updated dates exist between sources (2026-03-13 on Data.gov vs. 2021-08-28 on NASA Earthdata).

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Delft3D hydrodynamic and sediment transport model simulation.

Time Range

2021 (Spring and Fall deployments)

Freshness

2026-03-13 03:10:56.686941

Geography

Intensive site 421, Terrebonne Basin, Mississippi River Delta, coastal Louisiana, USA