Delta-X ANUGA Hydrodynamic Model Outputs for Mississippi River Delta

Southern Louisiana's Atchafalaya and Terrebonne basins are covered by this dataset containing inputs and outputs from the ANUGA 2D depth-integrated hydrodynamic model. The dataset includes two weeks of predictions for water levels and mean horizontal velocities at a 30-minute time step, generated using a Finite Volume Method on an unstructured mesh. NASA produced this data for the 2021 Delta-X Spring Campaign, with model runs from March 20 to April 4, 2021.

Use Cases

• Validating shallow water flow models against observed data using predicted water level and velocity outputs.
• Analyzing spatial patterns of friction coefficients and elevation for hydrodynamic model parameterization.
• Visualizing temporal evolution of flood inundation via the provided MP4 video summaries.
• Studying the hydrodynamic response of deltaic basins to seasonal river discharge during a spring campaign.

Strengths

• Model outputs provide high-temporal-resolution predictions at a 30-minute time step for a two-week period.
• Data is spatially specific, covering two major basins (Atchafalaya and Terrebonne) within the Mississippi River Delta.
• Includes both raw model inputs (DEM, friction grid) and processed outputs (NetCDF, videos) for full workflow transparency.
• Cross-platform presence on Data.gov and NASA EarthData signals its importance and official provenance.

Limitations

• Conflicting metadata exists for the last update date (2026-03 13 on Data.gov vs. 2021-04-02 on NASA EarthData).
• Exact row/record counts and total dataset size are not provided by any source.
• The specific license terms under 'other-license-specified' are not detailed.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Outputs from the ANUGA 2D hydrodynamic model using the Finite Volume Method to solve shallow water equations.

Time Range

2021-03-20 to 2021-04-04

Freshness

2026-03-13 03:11:25.665915

Geography

Atchafalaya and Terrebonne basins, Mississippi River Delta, southern Louisiana, USA