Dataset: Sediment trap sinking particles
Deployment: KM1712

View Data: For data, See Dataset Metadata Page: https://www.bco-dmo.org/dataset/860424

Lead Principal Investigator:

William M. Berelson (University of Southern California, USC)

Principal Investigator:

Jess F. Adkins (California Institute of Technology, Caltech)

Scientist:

Sijia Dong (California Institute of Technology, Caltech)

Nick E. Rollins (University of Southern California, USC)

Adam V. Subhas (Woods Hole Oceanographic Institution, WHOI)

Contact:

Sijia Dong (California Institute of Technology, Caltech)

BCO-DMO Data Manager:

Dana Stuart Gerlach (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Ocean Acidification - Collaborative Research: Measuring the kinetics of CaCO3 dissolution in seawater using novel isotope labeling, laboratory experiments, and in situ experiments (CaCO3 dissolution)

Version:

Deployment Synonyms:

CDisK-IV, CDisK-4

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Description

North Pacific, 150 W, 20 to 60 N, all depths

Methods & Sampling

Dataset acquisition description

Suspended particles were collected at 5 different stations along a North Pacific transect between Hawaii and Alaska. Samples were collected on 142 mm diameter Glass Fiber Filters (GFF) using McLane Pumps. Particulate Inorganic Carbon (PIC) content was measured by acidifying a subsample of the GFF filter and measuring total CO2 released on a Picarro gas concentration analyzer. Total Particulate Carbon (PC) and Particulate Nitrogen (PN) were analyzed by burning a subsample of the GFF on an Elemental Analyzer (EA).

Data Processing Description

Dataset Processing Description

BCO-DMO processing:
- Converted latitude and longitude to decimal degrees.
- Created column for ISO 8601 formatted times (UTC/GMT timezone)
- Rounded column values to submitter preference
- Replaced missing data identifier of 'NA' with 'nd' (BCO-DMO default for 'no data')
- Modified parameter (column) names to conform with BCO-DMO naming conventions.
No spaces, hyphens, commas, parentheses, or Greek letters.
The only chararacters allowed are A-Z, a-z, 0-9, and underscores.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1220302	NSF Division of Ocean Sciences
OCE-1220600	NSF Division of Ocean Sciences

Instruments

Cavity enhanced absorption spectrometers

Supplied Name: Picarro Cavity Ring-Down Spectroscopy Gas Analyzer (G2131-i)

Supplied Description:

Particulate Inorganic Carbon (PIC) content was measured by acidifying a subsample of the GFF filter and measuring total CO2 released on Picarro

Instrument Type

Generic Name: Cavity enhanced absorption spectrometers

Acronym: CEAS

Generic Description:

Instruments that illuminate a sample inside an optical cavity, typically using laser light, and measure the concentration or amount of a species in gas phase by absorption spectroscopy. Techniques include cavity ring-down spectroscopy (CRDS) and integrated cavity output spectroscopy (ICOS).

CO2 Analyzer

Supplied Name: Picarro Cavity Ring-Down Spectroscopy Gas Analyzer (G2131-i)

Supplied Description:

Particulate Inorganic Carbon (PIC) content was measured by acidifying a subsample of the GFF filter and measuring total CO2 released on Picarro

Instrument Type

Generic Name: CO2 Analyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/382/

Generic Description:

Measures atmospheric carbon dioxide (CO2) concentration.

Elemental Analyzer

Supplied Name: Costech ECS4010 CHNSO Elemental Analyzer

Supplied Description:

Total Particulate Carbon (PC) and Particulate Nitrogen (PN) were analyzed by burning a subsample of the GFF on Elemental Analyzer (EA).

Instrument Type

Generic Name: Elemental Analyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB01/

Generic 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.

Sediment Trap

Supplied Name: Sediment trap

Supplied Description:

Sinking particles were collected using sediment traps at 100 m and 200 m, at 5 different stations along a North Pacific transect between Hawaii and Alaska

Instrument Type

Generic Name: Sediment Trap

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/33/

Generic Description:

Sediment traps are specially designed containers deployed in the water column for periods of time to collect particles from the water column falling toward the sea floor. In general a sediment trap has a jar at the bottom to collect the sample and a broad funnel-shaped opening at the top with baffles to keep out very large objects and help prevent the funnel from clogging. This designation is used when the specific type of sediment trap was not specified by the contributing investigator.

X-ray diffractometer

Supplied Name: XRD

Supplied Description:

Calcite/aragonite ratios were analyzed by XRD

Instrument Type

Generic Name: X-ray diffractometer

Acronym: XRD

Generic Description:

Instruments that identify crystalline solids by measuring the characteristic spaces between layers of atoms or molecules in a crystal.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Depth	Depth of sample collection	meters (m)	depth
Latitude	Latitude of sample collection	decimal degrees	lat
Longitude	Longitude of sample collection (West is negative)	decimal degrees	lon
Deploy_Time_local	Time of sediment trap deployment (local, Hawaii Standard Time)	unitless	DateTime
Deploy_DateTime_UTC	Time of sediment trap deployment in ISO8601 format	unitless	ISO_DateTime_UTC
Recover_Time_local	Time of sediment trap recovery (local, Hawaii Standard Time)	unitless	DateTime
Pct_Aragonite	Aragonite percentage in PIC (particulate inorganic carbon)	percent	CaCO3
Cruise_ID	Cruise identifier	unitless	cruise_id
Cruise_synonym	Cruise name	unitless	cruise_name
del13C	Delta 13C of total Carbon	per mil	d13C
del13C_rep	Delta 13C of total Carbon (replicate sample)	per mil	d13C
Duration	Duration of trap deployment	hours	duration
Mass_Flux	Mass flux	milligrams per squared meter per day (mg/m2/day)	flux
Num_Tubes	Number of the sediment trap tubes used to collect the sinking particles	unitless	number
PIC_flux	Particulate inorganic carbon flux	millimoles per squared meter per day (mmol/m2/day)	flux
Station	Station number	unitless	station
Recover_DateTime_UTC	Time of sediment trap recovery in ISO8601 format	unitless	ISO_DateTime_UTC
Total_C_flux	Total carbon flux	milligrams per squared meter per day (mg/m2/day)	flux
Mass_trapped	Weight of trapped material	milligrams (mg)	mass
Pct_PIC	Weight percent of Particulate Inorganic Carbon	percent (%)	PIC
Pct_Total_C	Weight percent of total Carbon (replicate sample)	percent (%)	C
Pct_Total_C_rep	Weight percent of total Carbon (replicate sample)	percent (%)	C

Database

Contribute Data

Dataset: Sediment trap sinking particles
Deployment: KM1712

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Sediment trap sinking particlesDeployment: KM1712

Dataset acquisition description

Dataset Processing Description

Dataset: Sediment trap sinking particles
Deployment: KM1712