Delta-X: Land Subsidence Rate, Mississippi River Delta (MRD), Louisiana, USA

Published by ORNL_DAAC | National Aeronautics and Space Administration | Metadata Last Checked: September 14, 2025 | Last Modified: 2025-09-11

This dataset provides estimates of land subsidence rates for the Delta-X domain area within the Atchafalaya and Terrebonne basins for 2021. The study area is a portion of the Mississippi River Delta in coastal Louisiana, U.S. The total subsidence is calculated as the sum of deep and shallow vertical elevation change rates. The deep subsidence rate is based on information from the Coastal Protection and Restoration Authority (CPRA) of Louisiana, documented in the Phase-4 subsidence trend report prepared for and provided by CPRA (2022). The shallow subsidence is calculated for the Delta-X study area by interpolation of publicly available data provided by CPRA for their coast-wide estimation of shallow subsidence in the 2023 Coastal Master Plan. The total subsidence rates and the estimated uncertainty in the total subsidence rates are provided as separate files in cloud optimized GeoTIFF (COG) format at 30-m (0.0003 decimal degrees) resolution.

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earth-science-geomorphic-landforms-processes-land-surface-coastal-processes-subsidence earth-science-geomorphic-landforms-processes-solid-earth-coastal-processes-subsidence

Complete Metadata

bureauCode	[ "026:00" ]
identifier	10.3334/ORNLDAAC/2307
landingPage	https://search.earthdata.nasa.gov/search?q=DeltaX_TotalSubsidenceRate_MRD_2307&ac=true
programCode	[ "026:000" ]
spatial	[[{"WestBoundingCoordinate":-91.8452,"NorthBoundingCoordinate":30.0106,"EastBoundingCoordinate":-90.1958,"SouthBoundingCoordinate":28.9811}],"CARTESIAN"]
temporal	2021-01-01/2021-01-01
theme	[ "Earth Science" ]