Delta-X: UAVSAR L2 Interferometric Products, MRD, Louisiana, 2021

Description

This dataset contains georeferenced UAVSAR Level 2 (L2) interferometric products for Delta-X flight lines acquired during the spring (2021-03-27 to 2021-04-18) and fall (2021-09-03 to 2021-09-13) deployments. This dataset provides water-level change observations throughout wetlands of the Atchafalaya and Terrebonne Basins, in Southern Louisiana, USA, within the Mississippi River Delta (MRD), and it may be used to generate time series analysis. The data were collected by Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR), a polarimetric L-band synthetic aperture radar flown on the NASA Gulfstream-III (C20) aircraft as part of the Delta-X campaign. Water surface elevations were measured on multiple flights at 30-minute intervals. Data quality was assessed by comparing water elevation estimates with data from in situ water level gauges throughout the study area. The data include interferogram phase, interferogram amplitude, unwrapped interferogram phase, and coherence products. A series of quality assurance masks of troposphere-induced phase delay regions were generated for all SAR acquisition dates using a weather feature matching algorithm. Geometry files for each flight line per field campaign with latitude, longitude, height and incidence angle information are also included. The data are provided in ENVI format.

Resources

Name Format Description Link
33 Delta-X: UAVSAR L2 Interferometric Products, MRD, Louisiana, 2021: DeltaX_L2_UAVSAR_WaterLevels.pdf https://data.ornldaac.earthdata.nasa.gov/public/deltax/DeltaX_L2_UAVSAR_WaterLevels/comp/DeltaX_L2_UAVSAR_WaterLevels.pdf
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daacdata/deltax/DeltaX_L2_UAVSAR_WaterLevels/
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/deltax/DeltaX_L2_UAVSAR_WaterLevels/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/DELTAX/guides/DeltaX_L2_UAVSAR_WaterLevels.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/2057
21 Delta-X Project Site https://deltax.jpl.nasa.gov/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F2057
22 UAVSAR interferometric product example. From left to right: Interferometric amplitude (displayed in decibel scale), wrapped interferometric phase, interferometric coherence and unwrapped interferometric phase, generated using acquisitions from flight-line wterre_34202 on 2021-04-06 at 20:32 and 21:02 (UTC) times. https://daac.ornl.gov/DELTAX/guides/DeltaX_L2_UAVSAR_WaterLevels_Fig1.jpg

Tags

  • topography
  • coastal-processes
  • ecosystems
  • land-surface
  • biosphere
  • surface-water
  • oceans
  • terrestrial-hydrosphere
  • geomorphic-landforms-processes
  • earth-science

Topics

Categories