Delta-X: Delft3D Broad-Scale Sediment Model, Atchafalaya Basin, MRD, Louisiana, USA

Published by ORNL_DAAC | National Aeronautics and Space Administration | Metadata Last Checked: October 16, 2025 | Last Modified: 2025-09-11

This dataset contains the Delft3D model of the Atchafalaya Basin along the Mississippi River Delta (MRD) in coastal Louisiana. Simulations cover the Delta-X Spring and Fall campaigns in 2021 and include hydrodynamics, waves, and sediment transport. Bottom friction was calibrated using AirSWOT water elevation data, while sediment parameters were calibrated using AVIRIS-NG Total Suspended Solids (TSS) data. All files required to run the simulations are included. Model output of water levels, velocity, and depth-averaged sediment concentration are provided for both campaigns as netCDF files. The dataset includes a netCDF file containing the annual inorganic mass accumulation rates derived from simulations.

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Complete Metadata

bureauCode	[ "026:00" ]
identifier	10.3334/ORNLDAAC/2302
landingPage	https://search.earthdata.nasa.gov/search?q=DeltaX_Delft3D_Atchafalaya_MRD_2302&ac=true
programCode	[ "026:000" ]
spatial	[[{"WestBoundingCoordinate":-91.8697,"NorthBoundingCoordinate":29.8218,"EastBoundingCoordinate":-90.9994,"SouthBoundingCoordinate":29.1725}],"CARTESIAN"]
temporal	2021-03-20/2021-03-20
theme	[ "Earth Science" ]