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Rates of denitrification and porewater nutrient concentrations at a saltmarsh in Alabama from 2015-04 to 2016-10 (NCEI Accession 0219938)

Metadata Updated: February 1, 2025

This dataset is generated from a study of a saltmarsh on Dauphin Island (30º15.43’N, 88º07.438’W) that is dominated by Spartina alterniflora and is interspersed with Juncus roemerianus. Tides are diurnal with mean tidal amplitude of less than 0.5 m. Replicate sediment cores (95 mm ID; n=5) were collected from Spartina alterniflora and Juncus roemerianus dominated sediments during the April 2015 to October 2016 period. Each core was sectioned between the 0-2 and 5-7 intervals and homogenized. Denitrification rates were measured following the acetylene inhibition technique. Porewater nutrient concentrations were periodically collected from triplicate sippers placed in Juncus roemerianus and Spartina dominated patches. Sippers were equipped with a 5-cm sampling window (centered at 10 cm depth). In May and August 2015 additional sediment cores were collected from the Spartina alterniflora and Juncus roemerianus patches and brought back to the laboratory for profiling of the porewater hydrogen sulfide concentrations.

Access & Use Information

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.

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Dates

Metadata Date 2025-01-23T17:09:24Z
Metadata Created Date December 4, 2020
Metadata Updated Date February 1, 2025
Reference Date(s) September 30, 2020 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA/NESDIS/ncei/accessions

Graphic Preview

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Additional Metadata

Resource Type Dataset
Metadata Date 2025-01-23T17:09:24Z
Metadata Created Date December 4, 2020
Metadata Updated Date February 1, 2025
Reference Date(s) September 30, 2020 (publication)
Responsible Party (Point of Contact)
Contact Email
Guid gov.noaa.nodc:0219938
Access Constraints Cite as: Mortazavi, Behzad; Mason, Olivia U. (2020). Rates of denitrification and porewater nutrient concentrations at a saltmarsh in Alabama from 2015-04 to 2016-10 (NCEI Accession 0219938). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0219938. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Bbox East Long -88.12
Bbox North Lat 30.26
Bbox South Lat 30.26
Bbox West Long -88.12
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Preview graphic
Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0219938
Graphic Preview Type PNG
Harvest Object Id 02a3c434-2e57-47c1-af67-d4c29a0078f2
Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
Harvest Source Title NOAA/NESDIS/ncei/accessions
Licence accessLevel: Public
Lineage
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Point", "coordinates": [-88.12, 30.26]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2015-04-01
Temporal Extent End 2016-10-31

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