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Pre-Delta-X: Water Levels across Wax Lake Outlet, Atchafalaya Basin, LA, USA, 2016

Metadata Updated: December 7, 2023

This dataset provides absolute water level elevations derived for 10 locations across the Wax Lake Delta, Atchafalaya Basin, in Southern Louisiana, USA, within the Mississippi River Delta (MRD) floodplain. Field measurements were made during the Pre-Delta-X campaign on October 13-20, 2016. Relative water level measurements were recorded every five minutes during a one-week period using in situ pressure transducers (Solinst) to measure water surface elevation change with millimeter accuracy. The Solinst system combines a total pressure transducer (TPT) and a temperature detector. Once underwater, the TPT measures the sum of the atmosphere and water pressure above the sensor. Atmospheric pressure fluctuations must be accounted for to obtain the height of the water column above the TPT. An absolute elevation correction was applied to the water level data using an iterative approach with the USGS Calumet Station water level height and Airborne Snow Observatory (ASO) lidar water level profiles. These Pre-Delta-X water level measurements served to calibrate and validate the campaign's remote sensing observations and hydrodynamic models.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date December 1, 2022
Metadata Updated Date December 7, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Water level pressure transducer field deployment. a) A total pressure transducer (TPT) to measure water level changes (Solinst; 6.25 in long). b) Installation of a TPT in shallow water within a PVC pipe. The pipe is embedded into the sediment with the TPT 20 cm above the bottom of the channel. c) Installation of a TPT in deep water attached to a concrete block. The TPT is protected inside the small black PVC pipe. The TPT must be above the block once sitting on the bottom of the channel. The rope is attached to a nearby tree or post for later retrieval. Source: Thomas et al. 2019

Additional Metadata

Resource Type Dataset
Metadata Created Date December 1, 2022
Metadata Updated Date December 7, 2023
Publisher ORNL_DAAC
Maintainer
Identifier C2025123345-ORNL_CLOUD
Data First Published 2020-08-25
Language en-US
Data Last Modified 2023-06-12
Category Delta-X, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Simard, M., M.W. Denbina, D.J. Jensen, and R. Lane. 2020. Pre-Delta-X: Water Levels across Wax Lake Outlet, Atchafalaya Basin, LA, USA, 2016. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1801
Graphic Preview Description Water level pressure transducer field deployment. a) A total pressure transducer (TPT) to measure water level changes (Solinst; 6.25 in long). b) Installation of a TPT in shallow water within a PVC pipe. The pipe is embedded into the sediment with the TPT 20 cm above the bottom of the channel. c) Installation of a TPT in deep water attached to a concrete block. The TPT is protected inside the small black PVC pipe. The TPT must be above the block once sitting on the bottom of the channel. The rope is attached to a nearby tree or post for later retrieval. Source: Thomas et al. 2019
Graphic Preview File https://daac.ornl.gov/DELTAX/guides/PreDeltaX_Water_Level_Data_Fig1.PNG
Harvest Object Id 665df4e9-96e6-4cb4-98d8-159941642673
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.3334/ORNLDAAC/1801
Metadata Type geospatial
Old Spatial -91.45 29.51 -91.36 29.74
Program Code 026:001
Source Datajson Identifier True
Source Hash 8c5da3a147904d5da600ffc0e98489c4e134002ca8cb380f15e84b39d647fe92
Source Schema Version 1.1
Spatial
Temporal 2016-10-13T00:00:00Z/2016-10-20T23:59:59Z

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