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

Metadata Updated: December 6, 2023

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.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

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).

Additional Metadata

Resource Type Dataset
Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023
Publisher ORNL_DAAC
Maintainer
Identifier C2482186619-ORNL_CLOUD
Data First Published 2022-09-22
Language en-US
Data Last Modified 2023-06-12
Category Delta-X, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Fichot, C.G., N. Ghosh, J. Harringmeyer, and M. Weiser. 2022. Delta-X: Particulate Organic Carbon Concentration from Water Samples, MRD, LA, 2021. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2073
Graphic Preview Description 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).
Graphic Preview File https://daac.ornl.gov/DELTAX/guides/DeltaX_Insitu_POC_Fig1.jpg
Harvest Object Id 30da5962-edb4-4a2f-99d1-ce8ce6b75f5f
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.3334/ORNLDAAC/2073
Metadata Type geospatial
Old Spatial -91.47 28.79 -90.57 29.75
Program Code 026:001
Source Datajson Identifier True
Source Hash 866c67289fe227bf954218010e11a4eefa12ac24a383c96b2a891cc82bdbfd1d
Source Schema Version 1.1
Spatial
Temporal 2021-03-25T14:43:00Z/2021-09-24T16:44:22Z

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