Dataset: Discrete Lab

Name: Discrete lab results from USCGC Healy cruise HLY1202 from the Arctic, North of Alaska in 2012 (OA - Canada Basin project)
Published: 2014-09-09
Keywords: oceans

Cite This Dataset

Spatial Extent: N:83.0767343 E:-157.3540598 S:73.037156 W:-175.1008017

Project:

Ocean Acidification in the Canada Basin: Roles of Sea Ice (OA - Canada Basin)

Program:

Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES): Ocean Acidification (formerly CRI-OA) (SEES-OA)

Principal Investigator:

Dr Bogdan Onac (University of South Florida, USF)

Dr Jonathan Wynn (University of South Florida, USF)

Co-Principal Investigator:

Dr Lisa Robbins (United States Geological Survey, USGS)

Contact:

Dr Lisa Robbins (United States Geological Survey, USGS)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

09 September 2014

Version Date:

2014-09-09

Current State:

Preliminary and in progress

Discrete lab results from USCGC Healy cruise HLY1202 from the Arctic, North of Alaska in 2012 (OA - Canada Basin project)

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Description

USGS Arctic Ocean Carbon Cruise 2012: Discrete Underway Laboratory Data
Discrete underway seawater samples that were analyzed in an onshore-laboratory after the HLY 2012 cruise

For aditional information see:
HLY1202 Cruise Report, Appendix E
U.S. Geological Survey Data Series 862 - Methods

Methods & Sampling

Seawater samples were collected from the sampling manifold of the shipboard flow-through seawater system in 300-mL borosilicate glass biochemical oxygen demand (BOD) bottles. Samples were preserved by adding 100 microliters of a saturated solution of mercuric chloride (HgCl2) and were sealed with a ground glass stopper lightly coated with Apiezon grease. Samples were transported to the USGS Carbon Chemistry Lab in St. Petersburg, Fla. Total alkalinity samples were analyzed using an Ocean Optics USB 2000 spectrophotometer, bromol cresol purple indicator dye, and the methods of Yao and Byrne (1998). Total carbon was analyzed using coulometric methods of Dickson and others (2007). Precision and accuracy for these methods was 1 micromole/kg for TA and TCO2.

For aditional information see:
HLY1202 Cruise Report, Appendix E
U.S. Geological Survey Data Series 862 - Methods

Data Processing Description

The QA/QC process looked for internal inconsistencies in the data by taking the results calculated using CO2SYS and comparing them with the collected data.

For aditional information see:
HLY1202 Cruise Report, Appendix E
U.S. Geological Survey Data Series 862 - Methods

BCO-DMO Processing Notes
- Generated from original file: "HLY1202_Discrete_Lab.csv" contributed by Lisa Robbins
- Parameter names edited to conform to BCO-DMO naming convention found at Choosing Parameter Name
- Date reformatted from MM/DD/YYYY to YYYYMMDD
- Time reformatted from HH:MM to HHMM

Data Files

File
Discrete_Lab.csv (Comma Separated Values (.csv), 2.41 KB) MD5:909f4621eb20ba2d3e5aaa5f602304d5 Primary data file for dataset ID 527780

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Arctic Sciences	PLR-1220032

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
HLY1202		2012-08-26	USCGC Healy	Dr Larry A. Mayer (Chief Scientist) Dr Andrew A. Armstrong (Co-Chief Scientist)	data info

Instruments

Pump - Surface Underway Ship Intake

Supplied Name: pump-ship intake

Supplied Description:

Samples were numbered incrementally throughout the duration cruises. A "surface" prefix indicates a sample taken from the ship's flow-through system.

Instrument Type

Generic Name: Pump - Surface Underway Ship Intake

Acronym: Pump-Ship Intake

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/31/

Generic Description:

The 'Pump-underway ship intake' system indicates that samples are from the ship's clean water intake pump. This is essentially a surface water sample from a source of uncontaminated near-surface (commonly 3 to 7 m) seawater that can be pumped continuously to shipboard laboratories on research vessels. There is typically a temperature sensor near the intake (known as the hull temperature) to provide measurements that are as close as possible to the ambient water temperature. The flow from the supply is typically directed through continuously logged sensors such as a thermosalinograph and a fluorometer. Water samples are often collected from the underway supply that may also be referred to as the non-toxic supply. Ideally the data contributor has specified the depth in the ship's hull at which the pump is mounted.

Sea-Bird SBE 45 MicroTSG Thermosalinograph

Supplied Name: SBE 45 MicroTSG

Supplied Description:

Salt content in Practical Salinity Units measured using the USCGC Healy's SBE45 instrument

Instrument Type

Generic Name: Sea-Bird SBE 45 MicroTSG Thermosalinograph

Acronym: SBE 45 MicroTSG

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0190/

Generic Description:

A small externally powered, high-accuracy instrument, designed for shipboard determination of sea surface (pumped-water) conductivity and temperature. It is constructed of plastic and titanium to ensure long life with minimum maintenance. It may optionally be interfaced to an external SBE 38 hull temperature sensor.

Sea Bird SBE 45 MicroTSG (Thermosalinograph)

Sea-Bird SBE-3 Temperature Sensor

Supplied Name: SBE-3 Temperature

Supplied Description:

Seawater Surface Temperature degrees Celsius measured using the USCGC Healy's SBE3 remote temperature probe. This value is the sea surface temperature

Instrument Type

Generic Name: Sea-Bird SBE-3 Temperature Sensor

Acronym: SBE-3 Temperature

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/134/

Generic Description:

The SBE-3 is a slow response, frequency output temperature sensor manufactured by Sea-Bird Electronics, Inc. (Bellevue, Washington, USA). It has an initial accuracy of +/- 0.001 degrees Celsius with a stability of +/- 0.002 degrees Celsius per year and measures seawater temperature in the range of -5.0 to +35 degrees Celsius. more information from Sea-Bird Electronics

Spectrophotometer

Supplied Name: Ocean Optics USB 2000 spectrophotometer

Supplied Description:

Samples were transported to the USGS Carbon Chemistry Lab in St. Petersburg, Fla. Total alkalinity samples were analyzed using an Ocean Optics USB 2000 spectrophotometer, bromol cresol purple indicator dye, and the methods of Yao and Byrne (1998).

Ocean Optics USB 2000 spectrophotometer

Instrument Type

Generic Name: Spectrophotometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/

Generic Description:

An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Latitude	Latitude (South is negative); WGS 84	decimal degrees	lat
Longitude	Longitude (West is negative); WGS 84	decimal degrees	lon
SST	Seawater Surface Temperature degrees Celsius measured using the USCGC Healy's SBE3 remote temperature probe. This value is the sea surface temperature	Degs Celsius	SST
Sample_ID	Sample identification number. Sample numbers correspond to HLY1202_Discrete_Underway.csv Sample_ID numbers	dimensionless	sample
Time	Time in Coordinated Universal Time (UTC); NIST	HHMM	time
Salinity	Salt content in Practical Salinity Units measured using the USCGC Healy's SBE45 instrument	PSU	sal
DIC	Dissolved inorganic carbon content of seawater in micromoles per kilogram	umol_kg-1	DIC
TA	Total alkalinity seawater in micromoles per kilogram	umol_kg-1-sw	TALK
Date	Date in Coordinated Universal Time (UTC); NIST	YYYYMMDD	date

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Dataset: Discrete Lab