Dataset: ProteOMZ nitrous oxide data

Name: Nitrous oxide concentrations from the R/V Falkor expedition FK160115 in the Central Pacific from January to February 2016
Published: 2022-06-08
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.775849.1

Spatial Extent: N:17 E:156 S:-10.563 W:139.8

Temporal Extent: 2016-01-17 - 2016-02-04

Project:

The ProteOMZ Expedition: Investigating Life Without Oxygen in the Pacific Ocean (ProteOMZ (Proteomics in an Oxygen Minimum Zone))

Principal Investigator:

Alyson E. Santoro (University of Maryland Center for Environmental Science, UMCES/HPL)

Co-Principal Investigator:

Mak A. Saito (Woods Hole Oceanographic Institution, WHOI)

Scientist:

Sarah Marie Laperriere (University of California-Santa Barbara, UCSB)

BCO-DMO Data Manager:

Mathew Biddle (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2022-06-08

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Nitrous oxide concentrations from the R/V Falkor expedition FK160115 in the Central Pacific from January to February 2016

Abstract:

Dissolved N2O concentrations from were measured in discrete samples on a research expedition to the Equatorial Pacific. Water samples were collected using a 24 bottle Niskin rosette equipped with a CTD. N₂O concentrations were measured using a headspace equilibration method and analyzed on a SRI Greenhouse Gas Monitoring Gas Chromatograph.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2022-06-08	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.775849.1	2022-06-08

Description

Falkor ProteOMZ nitrous oxide from expedition (FK160115) in the Central Pacific in 2016.

Methods & Sampling

Samples were collected from the CTD rosette into 160 mL glass serum bottles.

Nitrous oxide concentration: N2O concentrations were measured using a headspace equilibration method and analyzed on a SRI Greenhouse Gas Monitoring Gas Chromatograph (GC) equipped with an electron capture detector (ECD), dual HayeSep D packed columns, and a 1-mL sample loop (SRI Instruments, Torrance, California, USA; Elkins 1980; Laperriere et al. 2019). N2O concentrations were calculated according to Walter et al. (2006).

Data Processing Description

BCO-DMO Processing Notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions
- combined date and time columns to form ISO Date format in column ISO_DateTime_UTC

Data Files

File
n2o.csv (Comma Separated Values (.csv), 14.72 KB) MD5:a939e48d4656a988f2ba3790acc425bc Primary data file for dataset ID 775849

More Information about this dataset

Funding Sources

Funding Source	Award Number
Schmidt Ocean Institute	R/V Falkor 160115 SOI ProteOMZ Expedition
Alfred P. Sloan Foundation	FG-2016-7129

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
FK160115	ProteOMZ	2016-01-16	R/V Falkor	Mak A. Saito (Chief Scientist)	data info

Instruments

CTD - profiler

Supplied Name: CTD

Supplied Description:

Temperature and Salinity are from CTD

Instrument Type

Generic Name: CTD - profiler

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.

This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934.

Gas Chromatograph

Supplied Name: RI Greenhouse Gas Monitoring Gas Chromatograph

Supplied Description:

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)

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
ISO_DateTime_UTC	Date time time of cast following ISO 8601 convention in UTC	unitless	ISO_DateTime_UTC
station	Station number	unitless	sta
ctd	CTD cast number	unitless	cast
latitude	latitude of station; North is positive; negative denotes South	decimal degrees	lat
longitude	longitude station East is positive; negative denotes West	decimal degrees	lon
niskin	Niskin bottle number	unitless	no_bcodmo_term
depth	depth of sampling	meters (m)	depth
salinity	Salinity from CTD	practical salinity units (PSU)	sal
temperature	Temperature from CTD	Celsius (C)	temp
n2o_1	Nitrous oxide concentration replicate 1	nanomoles per liter (nmol/L)	N2O
n2o_2	Nitrous oxide concentration replicate 2	nanomoles per liter (nmol/L)	N2O
n2o_3	Nitrous oxide concentration replicate 3	nanomoles per liter (nmol/L)	N2O
n2o_4	Nitrous oxide concentration replicate 4	nanomoles per liter (nmol/L)	N2O
n2o_5	Nitrous oxide concentration replicate 5	nanomoles per liter (nmol/L)	N2O

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Database

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Dataset: ProteOMZ nitrous oxide data