Delta-X: Particulate Organic Carbon Concentration from Water Samples, MRD, LA, 2021

Description

This dataset provides measurements of particulate organic carbon (POC) concentrations made on water samples collected during 2021 in surface waters of the Atchafalaya River and Terrebonne Basins, portions of the Mississippi River Delta in coastal Louisiana. Water samples were collected at ~0.5 m depth from surface during the spring (2021-03-25 to 2021-04-22) and fall (2021-08-14 to 2021-09-24) field efforts. Field sampling was paused on August 25 and resumed on September 13 due to the landfall of Hurricane Ida on 2021-08-26 approximately 70 km east of the study sites. Water quality changes in this dataset caused by the hurricane are expected to be minimal. Samples were collected in multiple channels of varying width (from a few meters to >100 m) near Delta-X intensive study sites, in open bays and lakes, and a few locations in the nearshore Gulf of Mexico. For each sample, the water sample volume was filtered (in triplicate) through 25-mm glass microfiber (GF/F) filters to retain the suspended particles. The amount of organic carbon retained on each filter was measured using an elemental carbon, hydrogen and nitrogen (CHN) analyzer and normalized by the volume of sample water filtered. The reported values in this dataset include the mean and standard deviation of POC measurements from three replicate samples collected at each site.

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%2F2073
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/deltax/DeltaX_Insitu_POC/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/DELTAX/guides/DeltaX_Insitu_POC.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/2073
22 Figure 1: Types of waters being sampled in this study region (left), van Dorn sampler being used to collect surface samples (middle), and deployment of van Dorn sampler (right). https://daac.ornl.gov/DELTAX/guides/DeltaX_Insitu_POC_Fig1.jpg
21 Delta-X Project Site https://deltax.jpl.nasa.gov/
33 Delta-X: Particulate Organic Carbon Concentration from Water Samples, MRD, LA, 2021: DeltaX_Insitu_POC.pdf https://data.ornldaac.earthdata.nasa.gov/public/deltax/DeltaX_Insitu_POC/comp/DeltaX_Insitu_POC.pdf

Tags

  • surface-water
  • water-quality-water-chemistry
  • terrestrial-hydrosphere
  • earth-science

Topics

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