Skip to main content
ORNL DAAC HomeNASA Home

DAAC Home > Get Data > NASA Projects > Delta-X > Landing page

Delta-X: AVIRIS-NG L3-derived Water Quality, TSS, and Turbidity, MRD, Louisiana, 2021

A newer version exists.

Click the DOI link in the following citation for the latest version:

Fichot, C.G., and J. Harringmeyer. 2022. Delta-X: AVIRIS-NG L3-derived Water Quality, TSS, and Turbidity, MRD, Louisiana, 2021. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2112

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/2084
Version1
Project
Published2022-08-30
Updated2022-08-30
Usage4 downloads

Description

This dataset includes estimates of total suspended solids (TSS) concentration and turbidity for waters of the Atchafalaya River and Terrebonne Basins of the Mississippi River Delta in coastal Louisiana. Estimates were derived from Level 2 (L2) BRDF-corrected imagery from the NASA's Next Generation Airborne Visible Infrared Imaging Spectrometer (AVIRIS-NG). AVIRIS-NG imagery was collected on March 27 to April 6 (spring) and August 20-25 (fall), 2021, as part of the 2021 Delta-X campaign. Algorithms for TSS and turbidity estimation were developed using in-situ remote-sensing reflectance measured at field sampling stations paired with in-situ measures of turbidity from a water quality probe and TSS from water samples. Using the in-situ data, a partial least squares regression (PLSR) model was developed for each AVIRIS-NG wavelength. A subset of the in-situ data, collected during relatively clear AVIRIS-NG overflights, was held out to validate the PLSR model. The PLSR algorithm was then applied to AVIRIS-NG imagery to retrieve TSS and turbidity across the study area. The measurement units for TSS and turbidity estimates are mg L-1 and Nephelometric Turbidity Units (NTU), respectively, and the spatial resolution is 3.8 to 5.4 m as determined by the AVIRIS-NG imagery. The dataset includes binary cloud and master masks. Gridded estimates are provided NetCDF format, and regression coefficients are included in a comma-separated values (CSV) file.

Science Keywords

  • TERRESTRIAL HYDROSPHERE
  • SURFACE WATER
  • SURFACE WATER PROCESSES/MEASUREMENTS
  • TERRESTRIAL HYDROSPHERE
  • WATER QUALITY/WATER CHEMISTRY
  • SOLIDS
  • SUSPENDED SOLIDS
  • TERRESTRIAL HYDROSPHERE
  • WATER QUALITY/WATER CHEMISTRY
  • WATER CHARACTERISTICS
  • TURBIDITY
  • TERRESTRIAL HYDROSPHERE
  • WATER QUALITY/WATER CHEMISTRY
  • SOLIDS
  • SEDIMENTS

Data Use and Citation

Download citation from Datacite
RISBibTexOther
Crosscite Citation Formatter
Fichot, C.G., and J. Harringmeyer. 2022. Delta-X: AVIRIS-NG L3-derived Water Quality, TSS, and Turbidity, MRD, Louisiana, 2021. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2084

See our Data Use and Citation Policy for more information.

Data Files

Access is restricted for Delta-X: AVIRIS-NG L3-derived Water Quality, TSS, and Turbidity, MRD, Louisiana, 2021. If you have questions about this product, please contact the ORNL DAAC User Support Office.

Companion Files

Toggle Companion Files

Sign in to download files.

Dataset has 1 companion files.

  • DeltaX_L3_AVIRIS-NG_Water.pdf

Additional Resources

TypeTitle
TutorialDelta-X Applications Workshop

Version History

VersionDataset TitlePublished
1Delta-X: AVIRIS-NG L3-derived Water Quality, TSS, and Turbidity, MRD, Louisiana, 20212022-08-30
2Delta-X: AVIRIS-NG L3-derived Water Quality, TSS, and Turbidity, MRD, Louisiana, 20210000-00-00