Dataset: N2O and nutrient concentrations

Name: Dissolved N2O and aquatic nutrient concentrations from 4 field sites in Bogue Sound, North Carolina collected from 2014 to 2015.
Published: 2017-12-14
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.720183.1

Spatial Extent: N:34.710129 E:-76.867882 S:34.710129 W:-76.867882

Temporal Extent: 2014 - 2015

Project:

Microbial Regulation of Greenhouse Gas N2O Emission from Intertidal Oyster Reefs (Oyster Reef N2O Emission)

Principal Investigator:

Michael F. Piehler (University of North Carolina at Chapel Hill, UNC-Chapel Hill-IMS)

BCO-DMO Data Manager:

Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2017-12-14

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Dissolved N2O and aquatic nutrient concentrations from 4 field sites in Bogue Sound, North Carolina collected from 2014 to 2015.

Abstract:

Dissolved N2O and aquatic nutrient concentrations from 4 field sites in Bogue Sound, North Carolina collected from 2014 to 2015.

Expand/Collapse All

Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2017-12-14	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.720183.1	2019-03-14

Description

Dissolved N2O and nutrient concentrations from 4 field sites in Bogue Sound, located in coastal North Carolina.

Methods & Sampling

Water samples were collected on-site and transported to UNC IMS. Water samples were collected in vented N2-sparged glass vials. N2O concentrations in the headspace were measured using a GC. They were analyzed for nutrient concentrations with Lachat Autoanalyzer. The 4 field sites are sites of oyster reef and salt marsh restoration. Identified in data as UNC Institute of Marine Sciences (IMS), Carrot Island (Carrot), NOAA Beaufort (NOAA), and Army Marsh (Army). All sites located in Bogue Sound near Morehead City, NC.

Data Processing Description

Dissolved N2O concentrations were calculated from the headspace data based on assumptions of Henry’s Law. The Henry’s Law solubility constant was used to calculate the Bunsen solubility coefficient, which was in turn used to determine the N2O concentration in the water sample. Nutrient concentration data corrected using standard curves.

BCO-DMO Data Processing Notes:

-N2O and nutrient data were combined into one table as they had the same first few columns
-blank cells replaced with nd
-data sorted by season, site

Data Files

File
N2O_nutrients.csv (Comma Separated Values (.csv), 30.61 KB) MD5:de94ef8fc922c3df9ec63bcb8646d0b7 Primary data file for dataset ID 720183

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1233327

Deployments

None available yet

Instruments

Gas Chromatograph

Supplied Description:

Used to analyze N2O

Instrument Type

Generic Name: Gas Chromatograph

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB02/

Generic Description:

Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC)

Nutrient Autoanalyzer

Supplied Name: Lachat Autoanalyzer

Supplied Description:

Used to determine nutrient concentrations

Instrument Type

Generic Name: Nutrient Autoanalyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB04/

Generic Description:

Nutrient Autoanalyzer is a generic term used when specific type, make and model were not specified. In general, a Nutrient Autoanalyzer is an automated flow-thru system for doing nutrient analysis (nitrate, ammonium, orthophosphate, and silicate) on seawater samples.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
N2O_conc_uM	N2O concentration in uM	micromoles	N2O
N2O_flux	N2O concentration flux	micromoles	N2O
NOx	NOx concentration	micromoles per liter	NO3_NO2
NH3	NH3 concentration	micromoles per liter	NH3_pw
PO4	PO4 concentration	micromoles per liter	PO4
TN	TN concentration	micromoles per liter	TDN
ON	ON concentration	micromoles per liter	no_bcodmo_term
N2O_conc_nM	N2O concentration in nM	nanomoles	N2O
CoreNo	Core ID number	unitless	core_id
Season	Season data were collected	unitless	no_bcodmo_term
Site	Site where data were collected	unitless	site
CoreName	Core name	unitless	core_id