Discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity (TA), salinity, oxygen, nutrients, and temperature during the CCGS John P. Tully cruise 2019.23 (EXPOCODE 18DD20190829) in the Salish Sea and off the west coast of Vancouver Island of the North American Pacific coast from 2019-08-29 to 2019-09-06 (NCEI Accession 0252614)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 04:06 AM | Dataset Last Updated: April 26, 2022 at 12:00 AM

This dataset consists of data collected during the CCGS John P. Tully cruise 2019.23 (EXPOCODE 18DD20190829) in the Salish Sea and off the west coast of Vancouver Island of the North American Pacific coast from 2019-08-29 to 2019-09-06 as part of the La Perouse Water Properties Survey. Discrete dissolved inorganic carbon (DIC), total alkalinity (TA), salinity, and nutrient samples were taken from rosette casts with 10L Niskin bottles and analysed at the Institute of Ocean Sciences. Discrete samples of dissolved oxygen were also collected and analysed onboard the vessel. CTD profiles were recorded with each rosette cast. DIC and TA samples were placed in cold storage for 1-4 weeks before analysis. A total of 61 DIC and TA pairs were sampled with a 22 percent replication rate. Replicates are not averaged in this dataset and appear individually, indicated by decimal sample ID's (e.g. 26.1, 26.2). The pooled standard deviations (of difference between replicate pairs) were calculated to be 6 umol/kg and 5 umol/kg respectively. Replicates with a QC flag = 3 were included in the pooled standard deviation calculation but replicate pairs with at least one QC flag = 4 (n = 1) were excluded.

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accessLevel	non-public
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describedByType	application/octet-steam
description	This dataset consists of data collected during the CCGS John P. Tully cruise 2019.23 (EXPOCODE 18DD20190829) in the Salish Sea and off the west coast of Vancouver Island of the North American Pacific coast from 2019-08-29 to 2019-09-06 as part of the La Perouse Water Properties Survey. Discrete dissolved inorganic carbon (DIC), total alkalinity (TA), salinity, and nutrient samples were taken from rosette casts with 10L Niskin bottles and analysed at the Institute of Ocean Sciences. Discrete samples of dissolved oxygen were also collected and analysed onboard the vessel. CTD profiles were recorded with each rosette cast. DIC and TA samples were placed in cold storage for 1-4 weeks before analysis. A total of 61 DIC and TA pairs were sampled with a 22 percent replication rate. Replicates are not averaged in this dataset and appear individually, indicated by decimal sample ID's (e.g. 26.1, 26.2). The pooled standard deviations (of difference between replicate pairs) were calculated to be 6 umol/kg and 5 umol/kg respectively. Replicates with a QC flag = 3 were included in the pooled standard deviation calculation but replicate pairs with at least one QC flag = 4 (n = 1) were excluded.
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identifier	https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0252614.xml
issued	2022-04-25T00:00:00.000+00:00
keyword	[ "0252614", "AMMONIUM (NH4)", "DISSOLVED INORGANIC CARBON (DIC)", "DISSOLVED OXYGEN", "HYDROSTATIC PRESSURE", "nitrate + nitrite content (concentration)", "phosphate", "SALINITY", "silicate", "total alkalinity", "WATER TEMPERATURE", "bottle", "CTD", "chemical", "discrete sample", "physical", "profile", "JOHN P. TULLY", "Fisheries and Oceans Canada, Institute of Ocean Sciences", "University of Victoria", "Ocean Carbon and Acidification Data System (OCADS)", "North Pacific Ocean", "oceanography", "CA/DFO/PR/SB/IOS > Institute of Ocean Sciences, Science Branch, Pacific Region, Fisheries and Oceans, Canada", "2019.23", "18DD20190829", "Ocean Carbon and Acidification Data System (OCADS) Project", "Coastal", "La Perouse Program Water Properties Survey", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE", "EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE", "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "Discrete measurement", "Profile", "Salish Sea", "AMMONIUM", "CTDPRS", "CTDSAL", "CTDTMP", "DIC", "NITRATE_NITRITE", "OXYGEN", "PHOSPHATE", "SALINITY", "SILICATE", "TA", "CTD > Conductivity, Temperature, Depth", "JOHN P. TULLY (call sign: CG2958, ICES code: 18DD, 1984-)", "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN", "North Pacific Ocean", "Salish Sea" ]
landingPage	https://www.ncei.noaa.gov/contact
language	[]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2022-04-26T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/SalishCruise_DataPackage.html", "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system" ]
rights	otherRestrictions
spatial	-124.99,48.42,-126.72,50.5
temporal	2019-08-29T00:00:00+00:00/2019-09-06T00:00:00+00:00
theme	[ "geospatial" ]
title	Discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity (TA), salinity, oxygen, nutrients, and temperature during the CCGS John P. Tully cruise 2019.23 (EXPOCODE 18DD20190829) in the Salish Sea and off the west coast of Vancouver Island of the North American Pacific coast from 2019-08-29 to 2019-09-06 (NCEI Accession 0252614)

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