Pre-Delta-X: L2 AirSWOT Water Surface Elevations, Atchafalaya Basin, LA, USA, 2016

Description

This dataset provides water surface elevations over the Wax Lake Delta in the Atchafalaya Basin in coastal Louisiana, USA, in May 2015. These Level 2 (L2) data were collected by AirSWOT, an airborne instrument employing near-nadir wide-swath Ka-band radar interferometry to measure water-surface elevation and produce continuous gridded elevation data at 3.6 m resolution. Along with elevation estimates, the dataset includes measures of estimation errors, sensitivity, incidence angle, backscatter, and interferometric correlation. For this application, in situ water level data were added into the AirSWOT phase calibration procedure. These L2 data consist of a set of rasters in Universal Transverse Mercator (UTM) map coordinates for each of the 39 AirSWOT flight lines. These elevation data were later used for calculating elevation and slopes along the main channels in this wetland system, as well as tying observations to ocean tidal conditions.

Resources

Name Format Description Link
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1818
22 Map of water surface elevation estimates collected by AirSWOT on May 9, 2015 over the Atchafalaya River Basin in coastal Louisiana, USA. The two USGS stations used as ground control points for AirSWOT calibration are annotated. Source: Denbina et al., 2019 https://daac.ornl.gov/DELTAX/guides/PreDeltaX_L2_AirSWOT_Fig1.jpg
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1818
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/deltax/PreDeltaX_L2_AirSWOT/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/DELTAX/guides/PreDeltaX_L2_AirSWOT.html
21 Delta-X Project Site https://deltax.jpl.nasa.gov/
21 Web Coverage Service for this collection. https://webmap.ornl.gov/wcsdown/dataset.jsp?ds_id=1818
33 Pre-Delta-X: L2 AirSWOT Water Surface Elevations, Atchafalaya Basin, LA, USA, 2016: PreDeltaX_L2_AirSWOT.pdf https://data.ornldaac.earthdata.nasa.gov/public/deltax/PreDeltaX_L2_AirSWOT/comp/PreDeltaX_L2_AirSWOT.pdf

Tags

  • ecosystems
  • biosphere
  • surface-water
  • terrestrial-hydrosphere
  • earth-science

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