Pre-Delta-X: UAVSAR-derived Water Level Change Maps, Atchafalaya Basin, LA, USA, 2016

This dataset contains five maps of cumulative changes in water levels at 30-minute intervals over a 150-minute period on 2016-10-16 in the Atchafalaya Basin in Southern Louisiana, USA, within the Mississippi River Delta (MRD) floodplain. Water surface elevations were measured on six flights at 30-minute intervals, with the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR), a polarimetric L-band synthetic aperture radar (SAR) flown on the NASA Gulfstream-III aircraft. The five georeferenced maps at 6 m resolution show the cumulative change of water levels (cm) every 30 minutes relative to the first sampling flight. These Level 3 maps were generated using the InSAR time series Small Baseline Subsets (SBAS) algorithm implemented in the Generic InSAR Analysis Toolbox (GIAnT) toolbox and served to evaluate and compare hydrodynamic models.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 18, 2026, 03:25 (UTC)
Created April 1, 2025, 18:26 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 303dd9ec-531e-48a2-9e70-c0a01183c063
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1823
license https://www.usa.gov/government-works
modified 2026-08-10T22:16:03Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 350e76feed1330c0e4ecbda5b9aad0ea96a8b6f8e35f8ddf589570ee0919712e
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -91.6221, "NorthBoundingCoordinate": 29.7583, "EastBoundingCoordinate": -91.0576, "SouthBoundingCoordinate": 29.3562}]]
temporal 2016-10-16/2016-10-16
theme {"Earth Science"}