Dataset: MV1110 Underway Nutrient and Particle Data
Deployment: MV1110

View Data: For data, See Dataset Metadata Page: https://www.bco-dmo.org/dataset/919764

Principal Investigator:

Joseph Montoya (Georgia Institute of Technology, GA Tech)

Co-Principal Investigator:

Patricia L. Yager (University of Georgia, UGA)

Contact:

Erica Strope (Georgia Institute of Technology, GA Tech)

BCO-DMO Data Manager:

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Amazon iNfluence on the Atlantic: CarbOn export from Nitrogen fixation by DiAtom Symbioses (ANACONDAS)

Version:

Deployment Synonyms:

AN11, ANACONDAS, ROCA

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Description

Methods & Sampling

Dataset acquisition description

The ship’s Underway system was equipped with an in-line Seabird thermosalinograph to collect sea surface temperature (SST) and sea surface salinity (SSS) data from 5-7m below sea surface.

Nutrient samples were run at sea using a Lachat QuickChem 8000 flow-injection analyzer equipped with the following methods:

Phosphate                    31-115-01-1-I
Silicate                                     31-114-27-1-B
Nitrate+Nitrite             31-107-04-1-A
Nitrite                          31-107-05-1-A

Particle (particulate N and C) samples for stable isotope (d15N, d13C) were collected and analyzed following methods in Montoya et al. 2002.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0934025	NSF Division of Ocean Sciences

Instruments

Isotope-ratio Mass Spectrometer

Supplied Name: Micromass Optima or Isoprime 100

Supplied Description:

Stable isotopes were measured using continuous-flow isotope-ratio mass spectrometry (CF-IRMS) on either a Micromass Optima or Isoprime 100. Both instruments were interfaced to a Carlo Erba elemental analyzer.

Instrument Type

Generic Name: Isotope-ratio Mass Spectrometer

Acronym: IR Mass Spec; IRMS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/

Generic Description:

The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).

Lachat QuikChem 8000 flow injection analyzer and Ion Chromatography (IC) system

Supplied Name: Lachat Quikchem 8000 Series

Supplied Description:

Lachat Quikchem 8000 Series for dissolved, inorganic nutrients

Instrument Type

Generic Name: Lachat QuikChem 8000 flow injection analyzer and Ion Chromatography (IC) system

Generic Description:

The Lachat QuikChem 8000 can operate flow injection analysis and ion chromatography simultaneously and independently on the same instrument platform. Instrument includes sampler, dilutor, sampling pump, electronics unit, and data station. Analysis takes 20-60 seconds, with a sample throughput of 60-120 samples per hour. Measurements are in the range of parts per trillion to parts per hundred.

Thermosalinograph

Supplied Name:

Supplied Description:

An in-line Seabird thermosalinograph was used to measure underway SST and SSS.

Instrument Type

Generic Name: Thermosalinograph

Acronym: TSG

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/133/

Generic Description:

A thermosalinograph (TSG) is used to obtain a continuous record of sea surface temperature and salinity. On many research vessels the TSG is integrated into the ship's underway seawater sampling system and reported with the underway or alongtrack data.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	Cruise identifier	unitless	cruise_id
Underway_StnEvent	Underway StnEvent is a numeric identifier for each sample collection in the format Station#.Event# ; Station# is the station number the ship was transiting from and Event# identifies the specific sampling event.	unitless	sample
Date	Date	unitless	date_gmt
Time	Time (GMT)	unitless	time_gmt
ISO_DateTime_UTC	DateTime (UTC) in ISO 8601 format with time zone	unitless	ISO_DateTime_UTC
Longitude	Longitude	decimal degrees	lat
Latitude	Latitude	decimal degrees	lon
SST	Sea surface temperature (SST)	degrees C (Celsius)	SST
SSS	Sea surface salinity (SSS)	Practical Salinity Units (PSU)	sal_ss
Mean_PO4	Mean phosphate (PO4)	micromolar (uM)	PO4
Mean_Si	Mean silicate, silicon dioxide SiO2	micromolar (uM)	SiO2
Mean_NO3_NO2	Mean NO3+NO2	micromolar (uM)	NO3_NO2
Mean_N	Mean N. N is the deficit of nitrogen (NOx, NO3 +NO2) relative to phosphorus (P) compared to the Redfield ratio, calculated: (NOx - (16PO4)+2.9) 0.87) .Equation (13) from Gruber and Sarmiento 1997.	unknown	no_bcodmo_term
d15N	d15N	permil (0/00)	d15N
d13C	d13C	permil (0/00)	d13C
C_to_N	Ratio C:N	unitless	C_to_N
Total_Particulate_N	Total particulate nitrogen	micromolar (uM)	TPN
Total_Particulate_C	Total particulate carbon	micromolar (uM)	TPC

Database

Contribute Data

Dataset: MV1110 Underway Nutrient and Particle Data
Deployment: MV1110

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: MV1110 Underway Nutrient and Particle DataDeployment: MV1110

Dataset acquisition description

Dataset Processing Description

Dataset: MV1110 Underway Nutrient and Particle Data
Deployment: MV1110