Suspended particles from ship’s surface intake samples collected on R/V Kilo Moana cruise KM1910 in June 2019

Website: https://www.bco-dmo.org/dataset/852242
Data Type: Cruise Results
Version: 1
Version Date: 2021-05-25

Project
» EAGER Collaborative Research: Early career chief scientist training for biological and chemical oceanographers (Chief Sci KM1910)
ContributorsAffiliationRole
Church, Matthew J.University of MontanaPrincipal Investigator
Ferrón, SaraUniversity of Hawaii at Manoa (SOEST)Co-Principal Investigator
Goetze, EricaUniversity of Hawaii at Manoa (SOEST)Co-Principal Investigator
White, Angelicque E.University of HawaiiCo-Principal Investigator
Maloney, AshleyPrinceton UniversityContact
Newman, SawyerWoods Hole Oceanographic Institution (WHOI BCO-DMO)Data Manager

Abstract
Surface particulate carbon concentration, nitrogen concentration, and bulk isotope composition (C and N) from underway clean water intake during June 2019 at station ALOHA during cruise KM1910. Suspended particulates were collected while underway using the ship's clean surface water intake ( ~0 to 5 m ocean depth) in the hydro lab sink aboard RV Kilo Moana.


Coverage

Spatial Extent: N:22.8348 E:-157.9229 S:22.2037 W:-158.3938
Temporal Extent: 2019-06-16 - 2019-06-21

Dataset Description

Surface particulate carbon concentration, nitrogen concentration, and bulk isotope composition (C and N) from underway clean water intake during June 2019 at station ALOHA during cruise KM1910.


Methods & Sampling

Sampling and analytical procedures:

Suspended particulates were collected while underway using the ship's clean surface water intake ( ~0 to 5 m ocean depth) in the hydro lab sink aboard RV Kilo Moana. Water was passed through three separate filter holders containing 1) an acid-washed 53um mesh screen pre-filter followed by 2), a combusted (4.5hrs 450 degrees C) 142mm GF/F (Whatman nominal pore size 0.7um) and finally followed by 3), a combusted 142mm GF75 (Advantec nominal pore size 0.3um). Samples were folded (active side in) and stored in clean (combusted) foil at -20 degrees C until subsampled with metal cork borer (subsamples were not acidified so PC and d13C represents total C). Subsamples were oven-dried overnight at 55-60 degrees C then packed in 9x11 tin capsules for analysis on EA IRMS. Six blank (dry) filters were analyzed for background C and N and subtracted from measured PC and PN sample values.

Instruments:

EA-IRMS: a Vario ISOTOPE select (Elementar Isoprime) was used to quantify total C, N, and d13C and d15N. Samples are combusted/reduced at high temperature to create gases (CO2 and N2); column chromatography separates the gases; a thermal conductivity detector determines the carbon and nitrogen concentrations, followed by an isotope ratio mass spectrometer for bulk isotope composition. Measurements were calibrated with an in-house aminocaproic acid standard (ACROS) and four USGS standards (#41, #41a, #65, #25).  Analytical uncertainty (determined from standards with similar isotope values) was 0.2‰ for delta-15N and 0.1‰ for delta-13C. 

Known problems:

Lat and Lon was not recorded at end of sample starting at 11:51 and ending at 15:30 on 190617

 


Data Processing Description

BCO-DMO Processing:
- converted date_HST to YYYY-MM-DD format;
- created UTC date/time field in ISO8601 format.


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Data Files

File
suspended_particles.csv
(Comma Separated Values (.csv), 2.43 KB)
MD5:244db6d591b2ec3775a3fe5254cff6d1
Primary data file for dataset ID 852242

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Related Publications

Heal, K. R., Maloney, A. E., Ingalls, A. E., & Bundy, R. M. (2021). Diverse arsenic-containing lipids in the surface ocean. doi:10.1101/2021.03.22.436501
Results

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Parameters

ParameterDescriptionUnits
cruise_idCruise identifier unitless
Start_ISO_DateTime_UTCDatetime (UTC) at start of collection; in ISO8601 format: YYYY-MM-DDThh:mmZ unitless
date_start_HSTLocal date (HST) at start of collection; format: YYYY-MM-DD unitless
time_start_HSTLocal time (HST) (24 hour) at start of collection; format: hhmm unitless
End_ISO_DateTime_UTCDatetime (UTC) at end of collection; in ISO8601 format: YYYY-MM-DDThh:mmZ unitless
date_end_HSTLocal date (HST) at end of collection; format: YYYY-MM-DD unitless
time_end_HSTLocal time (HST) (24 hour) at end of collection; format: hhmm unitless
staStation number unitless
lon_startLongitude (degrees E) at start of collection decimal degrees
lat_startLatitude (degrees N) at start of collection decimal degrees
lon_endLongitude (degrees E) at end of collection decimal degrees
lat_endLatitude (degrees N) at end of collection decimal degrees
samplesize_LLiters of water through entire filter liters (L)
subsamplesize_LLiters of water through filter punch subsample liters (L)
PC_GFFTotal Particulate Carbon (PC) [umol/L] on first filter GF/F (nominal pore size 0.7um), prefiltered with 53um mesh, size range = 53 to 0.7um; filter punches not acidified before analysis; measurements corrected for 6 blank (dry) filters micromole per liter (umol/L)
PC_GF75Particulate Carbon (PC) [umol/L] on second filter GF75 (nominal pore size 0.3um), size range = 0.7 to 0.3um, filter punches not acidified before analysis; measurements corrected for 6 blank (dry) filters micromole per liter (umol/L)
P13C_GFFDelta-13C of PC (permil vs. VPDB) on first filter GF/F (nominal pore size 0.7um), prefiltered with 53um mesh, size range = 53 to 0.7um; filter punches not acidified before analysis. Analytical uncertainty 0.1 permil permil vs. VPDB
P13C_GF75Delta-13C of PC (permil vs. VPDB) on second filter GF75 (nominal pore size 0.3um) size range = 0.7 to 0.3um, filter punches not acidified before analysis. Analytical uncertainty 0.1 permil permil vs. VPDB
PN_GFFParticulate Nitrogen (PN) [umol/L] on first filter GF/F (nominal pore size 0.7um), prefiltered with 53um mesh, size range = 53 to 0.7um; filter punches not acidified before analysis; measurements corrected for 6 blank (dry) filters micromole per liter (umol/L)
PN_GF75Particulate Nitrogen (PN) [umol/L] on second filter GF75 (nominal pore size 0.3um), size range = 0.7 to 0.3um, filter punches not acidified before analysis; measurements corrected for 6 blank (dry) filters micromole per liter (umol/L)
P15N_GFFDelta-15N of PN (permil vs. air-N2) on first filter GF/F (nominal pore size 0.7um), prefiltered with 53um mesh, size range = 53 to 0.7um; filter punches not acidified before analysis. Note there is no P15N_GF75 data, all samples from the second filter were below detection, detection limit ~0.75 micromol N. Analytical uncertainty 0.2 permil permil vs. air-N2


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Instruments

Dataset-specific Instrument Name
Generic Instrument Name
Isotope-ratio Mass Spectrometer
Dataset-specific Description
Bulk isotope composition.
Generic Instrument 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).

Dataset-specific Instrument Name
EA-IRMS
Generic Instrument Name
Elemental Analyzer
Dataset-specific Description
A Vario ISOTOPE select (Elementar Isoprime) was used to quantify total C, N, and d13C and d15N.
Generic Instrument Description
Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material.


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Deployments

KM1910

Website
Platform
R/V Kilo Moana
Report
Start Date
2019-06-15
End Date
2019-06-24
Description
NSF Chief Scientist Training Cruise. For more information, see Rolling Deck to Repository (R2R): https://www.rvdata.us/search/cruise/KM1910 (cruise DOI: 10.7284/908380)


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Project Information

EAGER Collaborative Research: Early career chief scientist training for biological and chemical oceanographers (Chief Sci KM1910)

Coverage: Station ALOHA (22.75N, 158W), North Pacific Ocean


NSF Award Abstract:

Intellectual Merit
The PIs request funds to provide training in leading and organizing research cruises to early career researchers in the areas of Biological and Chemical Oceanography. Participants in this training program would be introduced to pre-cruise planning and logistics, receive training in commonly used oceanographic sampling equipment, and conduct shipboard measurements during a 10-day oceanographic cruise to the North Pacific Subtropical Gyre (NPSG). The goal of this training program is to prepare early career scientists for leading and participating in interdisciplinary oceanographic research at sea.

Broader Impacts
The proposed program addresses the broader impacts criteria successfully. The research cruise and follow-up reports and publications focus on interdisciplinary questions important for advancing the field. Given the rapid changes that oceanic systems are undergoing, it is important to have a cadre of junior scientists who are adept at managing interdisciplinary collaborations and conducting research at sea. The PIs are considering ways to connect with diverse audiences in recruiting participants. The impact on early career oceanographers will be very strong. This will create an experience that will be a major impact on the careers of the trainees, especially if they stay in the oceanography field.



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Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)
NSF Division of Ocean Sciences (NSF OCE)

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