Dataset: TOC

Name: Total organic carbon (TOC) measurements from CTD bottle samples collected during the R/V Kilo Moana cruise KM1427 in the North Pacific Ocean in December of 2014
Published: 2018-05-11
Keywords: oceans

View Data: Data not available yet

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Spatial Extent: N:22.75 E:-158 S:22.75 W:-158

Temporal Extent: 2014-12 - 2014-12

Project:

Relating the Optical Properties of CDOM within the Ocean Basins to Source and Structure (CDOM Optical Properties)

Principal Investigator:

Neil V. Blough (University of Maryland - College Park, UMD)

Co-Principal Investigator:

Rossana Del Vecchio (University of Maryland - College Park, UMD)

Contact:

Neil V. Blough (University of Maryland - College Park, UMD)

BCO-DMO Data Manager:

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

Version:

Version Date:

2018-05-11

Restricted:

Validated:

Current State:

Preliminary and in progress

Total organic carbon (TOC) measurements from CTD bottle samples collected during the R/V Kilo Moana cruise KM1427 in the North Pacific Ocean in December of 2014

Abstract:

Bottle samples were collected during 0-4500 meter depth CTD deployments during the R/V Kilo Moana cruise KM1427 in the North Pacific Ocean in December of 2014. Total organic carbon (TOC) measurements were made using the bottle samples.

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Description

This dataset has been submitted to BCO-DMO and is in the process of being served.

Related Datasets:
* Absorption coefficients: https://www.bco-dmo.org/dataset/735970
* CTD profiles: https://www.bco-dmo.org/dataset/734763

Methods & Sampling

Water samples were collected using a CTD rosette with Niskin bottles and immediately transferred into acid rinsed carboys (20 L). Samples were then filtered through a 0.2 mm maxi capsule filter (Pall Corporation) prior to the acquisition of measurements.

Total organic carbon measurements were acquired using a Shimadzu TOC- 5000A analyzer. The pH sensor was set to output the average and standard deviation of several injections, the number of which is determined by the CV set to be less than 3%.

Data Processing Description

BCO-DMO Data Manager Processing Notes:
* added a conventional header with dataset name, PI name, version date
* modified parameter names to conform with BCO-DMO naming conventions

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1357411

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
KM1427		2014-12-08	R/V Kilo Moana	Samuel Wilson (Chief Scientist)	data info

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: SBE 911plus / 917plus CTD

Supplied Description:

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

Niskin bottle

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Shimadzu TOC-L Analyzer

Supplied Name: Shimadzu TOC- 5000A analyzer

Supplied Description:

The instrument was set up to print the average and SD of several injections, the number of which is determined by the CV set to be less than 3%.

Instrument Type

Generic Name: Shimadzu TOC-L Analyzer

Acronym: Shimadzu TOC-L

Community Identifier: http://onto.nerc.ac.uk/CAST/124.html

Generic Description:

A Shimadzu TOC-L Analyzer measures DOC by high temperature combustion method.

Developed by Shimadzu, the 680 degree C combustion catalytic oxidation method is now used worldwide. One of its most important features is the capacity to efficiently oxidize hard-to-decompose organic compounds, including insoluble and macromolecular organic compounds. The 680 degree C combustion catalytic oxidation method has been adopted for the TOC-L series.

http://www.shimadzu.com/an/toc/lab/toc-l2.html

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Depth	Depth	meters (m)	depth
TOC	Total organic carbon (TOC)	micromolar carbon (uM C)	TOC
SD	Standard deviation of total organic carbon (TOC)	micromolar carbon (uM C)	std_dev

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Dataset: TOC