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

Description

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.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1801
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/deltax/PreDeltaX_Water_Level_Data/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/DELTAX/guides/PreDeltaX_Water_Level_Data.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1801
21 Delta-X Project Site https://deltax.jpl.nasa.gov/
33 Pre-Delta-X: Water Levels across Wax Lake Outlet, Atchafalaya Basin, LA, USA, 2016: PreDeltaX_Water_Level_Data.pdf https://data.ornldaac.earthdata.nasa.gov/public/deltax/PreDeltaX_Water_Level_Data/comp/PreDeltaX_Water_Level_Data.pdf
34 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 https://daac.ornl.gov/DELTAX/guides/PreDeltaX_Water_Level_Data_Fig1.PNG

Tags

  • climate-indicators
  • coastal-processes
  • ecosystems
  • land-surface
  • biosphere
  • surface-water
  • oceans
  • terrestrial-hydrosphere
  • atmospheric-ocean-indicators
  • geomorphic-landforms-processes
  • earth-science

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