Dataset: P16 Repeat Hydrography Trace Metal Profiles
Deployment: TN191A

Profiles of dissolved trace elements collected using a trace-metal clean rosette from surface to 1000m depth

Principal Investigator:

William M. Landing (Florida State University, FSU - EOAS)

Co-Principal Investigator:

Christopher I. Measures (University of Hawai'i, UH)

Joseph A. Resing (UW-NOAA Joint Institute for the Study of the Atmosphere and Ocean, JISAO)

Contact:

William M. Landing (Florida State University, FSU - EOAS)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Collaborative Research: Global Ocean Survey of Dissolved Iron and Aluminum and Aerosol Iron and Aluminum Solubility Supporting the Repeat Hydrography (CO2) Project (CLIVAR AEROSOL)

Current State:

Final no updates expected

Deployment Synonyms:

P16N, 325020060213, 3250TT191a, 33TT200601, P16

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/778505/data

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Description

Profiles of dissolved trace elements collected using a trace-metal clean rosette from surface to 1000m depth.

Methods & Sampling

Dataset acquisition description

Please see the related methods papers for all methodology details (Measures et al., 2008 and Milne et al., 2010).

In brief, samples were collected using a rosette system, described in Measures et al. (2008), comprised of a Seabird SBE 911+ CTD, SBE 443 dissolved oxygen sensor, Wet Labs FL 1 fluorometer, and 12-L Teflon coated GO-FLO bottles. See Measures et al. (2008) for sampling procedures/protocols.

Milne et al. (2010) describes the methods used for the simultaneous determination of eight trace metals (Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb) in seawater using the commercially available Toyopearl AF-Chelate-650M chelating resin. Isotope dilution (ID) was employed for the determination of Fe, Ni, Cu, Zn, Cd and Pb whereas the method of standard addition was used for the mono-isotopic elements Mn and Co. The method was verified through the analysis of certified reference material (NASS-5) and the SAFe inter-comparison samples (S1 and D2).

Data Processing Description

Dataset Processing Description

Missing data are coded -999. This occurs when the ICPMS data for an extracted sample is unreliable. All data reduction was done using Excel.

The WHP flag code scheme was used with this data set. The WHP bottle parameter data quality codes are:
1 = Sample for this measurement was drawn from water bottle but analysis not received. Note that if water is drawn for any measurement from a water bottle, the quality flag for that parameter must be set equal to 1 initially to ensure that all water samples are accounted for.
2 = Acceptable measurement.
3 = Questionable measurement.
4 = Bad measurement.
5 = Not reported.
6 = Mean of replicate measurements (Number of replicates should be specified in the -.DOC file and replicate data tabulated).
7 = Manual chromatographic peak measurement.
8 = Irregular digital chromatographic peak integration.
9 = Sample not drawn for this measurement from this bottle.

BCO-DMO Processing:
- formatted TIME column to HHMM;
- replaced "<LOD" with "BDL";
- filled empty cells with "nd";
- made corrections to EXPOCODE numbers: changed P16N_3250TT192 to P16N_3250TT191 and "33RR20050" to "33RR200501";
- added date/time field in ISO8601 format using the original DATE and TIME fields provided.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0223378	NSF Division of Ocean Sciences
OCE-0223397	NSF Division of Ocean Sciences
OCE-0223504	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name:

Supplied Description:

Samples were collected using a rosette system, described in Measures et al. (2008), comprised of a Seabird SBE 911+ CTD, SBE 443 dissolved oxygen sensor, Wet Labs FL 1 fluorometer, and 12-L Teflon coated GO-FLO bottles. See Measures et al. (2008) for sampling procedures/protocols.

Instrument Type

Generic Name: CTD Sea-Bird SBE 911plus

Acronym: CTD SBE 911plus

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/

Generic Description:

The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics

GO-FLO Bottle

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: GO-FLO Bottle

Acronym: GO-FLO

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/30/

Generic Description:

GO-FLO bottle cast used to collect water samples for pigment, nutrient, plankton, etc. The GO-FLO sampling bottle is specially designed to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths.

Inductively Coupled Plasma Mass Spectrometer

Supplied Name: Thermo-Finnigan Element I (E1) HR-ICP-MS

Supplied Description:

Instrument Type

Generic Name: Inductively Coupled Plasma Mass Spectrometer

Acronym: ICP Mass Spec

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/

Generic Description:

An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
EXPOCODE	Expedition code	unitless	EXPOCODE
STNNBR	Station number	unitless	station
CASTNO	Cast number	unitless	cast
SAMPNO	Sample number	unitless	sample
DATE	Date (UTC); format: yyyymmdd	unitless	date_utc
TIME	Time (UTC); format: HHMM	unitless	time_utc
LATITUDE	Latitude; positive values = North	degrees North	lat
LONGITUDE	Longitude; positive values = East	degrees East	lon
CTDPRS	Pressure; measured by CTD	decibars	press
CTDPRS_FLAG_W	WHP quality flag for CTDPRS	unitless	q_flag
TEMPERATURE	Water temperature	degrees Celsius	temp
TEMPERATURE_FLAG_W	WHP quality flag for TEMPERATURE	unitless	q_flag
SALNTY	Salinity; PSS-78	psu	sal
SALNTY_FLAG_W	WHP quality flag for SALNTY	unitless	q_flag
OXYGEN	Oxygen	micromoles per kilogram (umol/kg)	O2
OXYGEN_FLAG_W	WHP quality flag for OXYGEN	unitless	q_flag
PHSPHT	Phosphate	micromoles per kilogram (umol/kg)	PO4
PHSPHT_FLAG_W	WHP quality flag for PHSPHT	unitless	q_flag
SILCAT	Silicate	micromoles per kilogram (umol/kg)	Silicate
SILCAT_FLAG_W	WHP quality flag for SILCAT	unitless	q_flag
NITRAT	Nitrate	micromoles per kilogram (umol/kg)	NO3
NITRAT_FLAG_W	WHP quality flag for NITRAT	unitless	q_flag
NITRIT	Nitrite	micromoles per kilogram (umol/kg)	NO2
NITRIT_FLAG_W	WHP quality flag for NITRIT	unitless	q_flag
Mn	Manganese	nanomoles per liter (nmol/L)	trace_metal_conc
Mn_FLAG_W	WHP quality flag for Mn	unitless	q_flag
Fe	Iron	nanomoles per liter (nmol/L)	trace_metal_conc
Fe_FLAG_W	WHP quality flag for Fe	unitless	q_flag
Co	Cobalt	nanomoles per liter (nmol/L)	trace_metal_conc
Co_FLAG_W	WHP quality flag for Co	unitless	q_flag
Ni	Nickel	nanomoles per liter (nmol/L)	trace_metal_conc
Ni_FLAG_W	WHP quality flag for Ni	unitless	q_flag
Cu	Copper	nanomoles per liter (nmol/L)	trace_metal_conc
Cu_FLAG_W	WHP quality flag for Cu	unitless	q_flag
Zn	Zinc	nanomoles per liter (nmol/L)	trace_metal_conc
Zn_FLAG_W	WHP quality flag for Zn	unitless	q_flag
Cd	Cadmium	nanomoles per liter (nmol/L)	trace_metal_conc
Cd_FLAG_W	WHP quality flag for Cd	unitless	q_flag
Pb	Lead	nanomoles per liter (nmol/L)	trace_metal_conc
Pb_FLAG_W	WHP quality flag for Pb	unitless	q_flag
ISO_DateTime_UTC	Date and time (UTC) formatted to the ISO8601 format: yyyy-mm-ddTHH:MM:SSZ	unitless	ISO_DateTime_UTC

Database

Contribute Data

Dataset: P16 Repeat Hydrography Trace Metal Profiles
Deployment: TN191A

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: P16 Repeat Hydrography Trace Metal ProfilesDeployment: TN191A

Dataset acquisition description

Dataset Processing Description

Dataset: P16 Repeat Hydrography Trace Metal Profiles
Deployment: TN191A