Mississippi River Delta Sediment Model for 2021 Spring and Fall Deployments

NASA's Delft3D model simulates hydrodynamics and sediment transport at intensive site 396 in the Terrebonne Basin of coastal Louisiana. The dataset provides outputs for the Delta-X Spring and Fall deployments in 2021, including water velocity, depth-averaged sediment concentrations, and derived annual inorganic mass accumulation rates. All required simulation files and model outputs are provided in netCDF format.

Use Cases

• Analyzing intra-annual variability in water levels and suspended sediment concentrations to derive mass accumulation rates.
• Simulating hydrodynamics and sediment transport processes for the Spring and Fall 2021 deployment periods.
• Studying coastal landform evolution using model outputs of water velocity and depth-averaged sediment concentration.
• Validating remote sensing observations or other models with this detailed process-based simulation of a specific delta site.

Strengths

• Model includes all files required to run the Delft3D simulations, providing a complete workflow.
• Outputs cover two distinct temporal deployments (Spring and Fall 2021), capturing seasonal variability.
• Provides derived annual inorganic mass accumulation rates, adding value beyond raw hydrodynamic outputs.

Limitations

• Sources disagree on the last updated date, with one listing 2026 and another 2021, creating uncertainty about maintenance.
• Specific column names, row counts, and dataset size are not provided by any source, limiting precise technical assessment.
• The license is specified only as 'other-license-specified', requiring further investigation for reuse terms.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Output from the Delft3D numerical model simulating hydrodynamics and sediment transport.

Time Range

2021 (Spring and Fall deployments)

Freshness

2026-03-13 03:17:29.430143

Geography

Intensive site 396, Terrebonne Basin, Mississippi River Delta, coastal Louisiana, USA