gov.noaa.nodc:0244177 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-11-29T07:41:00Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Using Endmember Models to Estimate Seasonal Carbonate Chemistry and Acidification Sensitivity in Temperate Estuaries from 2015-11-19 to 2018-03-29 (NCEI Accession 0244177) 2021-12-20 publication 2021-12-13 creation International DOI Foundation (IDF) 10.25921/padc-s385 NOAA National Centers for Environmental Information gov.noaa.nodc:0244177 NCEI Archive Management System 0244177 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Eleanor Simpson Fisheries and Oceans Canada, Institute of Ocean Sciences eleanor.simpson@dfo-mpo.gc.ca resourceProvider Fisheries and Oceans Canada, Institute of Ocean Sciences resourceProvider Eleanor Simpson Simon Fraser University eleanor.simpson@dfo-mpo.gc.ca https://www.sfu.ca HTTPS Simon Fraser University website Institution web page information principalInvestigator Debby Ianson Fisheries and Oceans Canada, Institute of Ocean Sciences debby.Ianson@dfo-mpo.gc.ca https://www.ubc.ca/ HTTPS Fisheries and Oceans Canada, Institute of Ocean Sciences website Institution web page information principalInvestigator Karen Kohfeld Simon Fraser University kohfeld@sfu.ca https://www.sfu.ca HTTPS Simon Fraser University website Institution web page information principalInvestigator Yves Perreault collaborator Paul A. Covert Pacific Region Institute of Ocean Sciences collaborator Marty Davelaar Fisheries and Oceans Canada, Institute of Ocean Sciences collaborator Kenny Scozzafava Fisheries and Oceans Canada, Institute of Ocean Sciences collaborator Keith Reid collaborator Danielle Caleb Department of Fisheries and Oceans Canada, Institute of Ocean Sciences - Victoria danielle.caleb@dfo-mpo.gc.ca collaborator André M. Comeau collaborator Simpson, Eleanor Simon Fraser University https://www.sfu.ca HTTPS Simon Fraser University website Institution web page information author Ianson, Debby Fisheries and Oceans Canada, Institute of Ocean Sciences https://www.ubc.ca/ HTTPS Fisheries and Oceans Canada, Institute of Ocean Sciences website Institution web page information author Kohfeld, Karen E. Simon Fraser University https://www.sfu.ca HTTPS Simon Fraser University website Institution web page information author Perreault, Yves author Comeau, André M. author Reid, Keith author Davelaar, Marty Fisheries and Oceans Canada, Institute of Ocean Sciences author Caleb, Danielle Department of Fisheries and Oceans Canada, Institute of Ocean Sciences - Victoria danielle.caleb@dfo-mpo.gc.ca author Scozzafava, Kenny Fisheries and Oceans Canada, Institute of Ocean Sciences author Covert, Paul Pacific Region Institute of Ocean Sciences author Fisheries and Oceans Canada, Institute of Ocean Sciences contributor tableDigital This dataset consists of data collected from the Salish Sea, British Columbia, specifically nearshore locations in Baynes Sound and Okeover Inlet; mostly via small skiffs and hand deployment of Niskin bottles. Some samples were collected from the CCGS Vector between 2015-2018. These data are used in "Using Endmember Models to Estimate Seasonal Carbonate Chemistry and Acidification Sensitivity in Temperate Estuaries" (2021) published in Geophysical Research Letters. Discrete total alkalinity (TA); dissolved inorganic carbon (DIC); dissolved oxygen; salinity; and nutrient samples were taken, 5L Niskin bottles and analyzed at the Institute of Ocean Sciences; Sidney, Canada. CTD profiles were recorded with each cast. A total of 578 DIC and TA pairs were sampled with a 20% replication rate; and the pooled standard deviations (of difference between replicate pairs) were calculated to be 2.1 umol/kg and 3.9 umol/kg respectively. Nearshore carbonate system sampling Funding Information: Marine Environmental Observation Prediction and Response Network (Ocean Acidification in Canadian Coastal Communities: Project 2.9 an Integrated Coastal Acidification Program) completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0244177 Preview graphic PNG 0244177 NCEI ACCESSION NUMBER 2021-11-16 publication DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN HYDROSTATIC PRESSURE nitrate + nitrite content (concentration) phosphate SALINITY silicate total alkalinity WATER TEMPERATURE theme NODC DATA TYPES THESAURUS bottle CTD instrument NODC INSTRUMENT TYPES THESAURUS chemical discrete sample physical profile theme NODC OBSERVATION TYPES THESAURUS CCGS VECTOR platform NODC PLATFORM NAMES THESAURUS Fisheries and Oceans Canada, Institute of Ocean Sciences dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Fisheries and Oceans Canada, Institute of Ocean Sciences dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ocean Carbon and Acidification Data System (OCADS) project NODC PROJECT NAMES THESAURUS Coastal Waters of Southeast Alaska and British Columbia place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication CA/DFO/PR/SB/IOS > Institute of Ocean Sciences, Science Branch, Pacific Region, Fisheries and Oceans, Canada dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian 2015.57 2016.002 2016.003 2016.005 2016.006 2016.007 2016.009 2016.1 2017.002 2017.003 2017.004 2017.005 2017.63 2018.001 project Cruise ID 18VT20160615 18VT20160619 18VT20160924 18VT20170412 project EXPOCODE Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords Coastal project Reference Section ID EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY 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 theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Profile theme OCADS Study Type CTDPRS CTDTMP CTD_SAL DIC NITRATE_NITRITE OXYGEN_UMOL_KG PHOSPHATE SALINTIY_PSS78 SILICATE TA theme Provider Variable Abbreviations CTD > Conductivity, Temperature, Depth instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian VECTOR (call sign: CGBW, ICES code: 18VT, 1967-) platform ICES/SeaDataNet Ship Codes OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Strait of Geogia/Okoever Inlet/ Baynes Sound place Provider Geographic Names accessLevel: Public otherRestrictions Cite as: Simpson, Eleanor; Ianson, Debby; Kohfeld, Karen E.; Perreault, Yves; Comeau, André M.; Reid, Keith; Davelaar, Marty; Caleb, Danielle; Scozzafava, Kenny; Covert, Paul (2021). Using Endmember Models to Estimate Seasonal Carbonate Chemistry and Acidification Sensitivity in Temperate Estuaries from 2015-11-19 to 2018-03-29 (NCEI Accession 0244177). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/padc-s385. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. Simpson, E., Ianson, D., & Kohfeld, K. E. (2022). Using End‐Member Models to Estimate Seasonal Carbonate Chemistry and Acidification Sensitivity in Temperate Estuaries. Geophysical Research Letters, 49(2). https://doi.org/10.1029/2021gl095579 2022-01-24 publication International DOI Foundation (IDF) https://doi.org/10.1029/2021gl095579 https://doi.org/10.1029/2021gl095579 HTTPS https://doi.org/10.1029/2021gl095579 related journal article information Simpson, Eleanor School of Resource and Environmental Management Simon Fraser University Burnaby BC Canada author Ianson, Debby School of Resource and Environmental Management Simon Fraser University Burnaby BC Canada author Kohfeld, Karen E. School of Resource and Environmental Management Simon Fraser University Burnaby BC Canada author American Geophysical Union (AGU) publisher documentDigital Geophysical Research Letters 49(2) ISSN 0094-8276, ISSN 1944-8007 crossReference project NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system 2022-04 publication https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system HTTPS https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system OCADS website information NOAA National Centers for Environmental Information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital [accessed 2024-02-08] crossReference program eng; USA utf8 environment oceans -124.77 -124.6831 49.4575 50.03 2015-11-19 2018-03-29 This data package (Submission ID: BFPDKNBKV) was acquired by NCEI from the Scientific Data Integration System (SDIS) at the NOAA Pacific Marine Environmental Laboratory (PMEL) in accordance with the archival submission agreement between NCEI and PMEL. 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Originator data format 0.428 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0244177.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.25921/padc-s385 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/244177 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/244177 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0192/0244177/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0244177 v1.1 was published. 2021-12-20T17:09:11Z NCEI Accession 0244177 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0244177/1.1 HTTPS NCEI Accession 0244177 v1.1 published 2021-12-20T17:09:11Z download dataset Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Unit: umol/kg; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Niskin bottle; 5 L; Analyzing instrument: Vindta with 5011 or 5017 coulometer; Detailed sampling and analyzing information: Seawater samples were collected in 500 mL borosilicate glass reagent bottles. 5 mL of water was removed to allow room for thermal expansion and the sample was preserved within 30 minutes of collection with 0.1 mL of a mercuric chloride saturated solution; then sealed with Apiezon M grease and the ground glass stoppers secured in place with electrical tape. The samples were stored at room temperature and moved to cold storage on-shore before on-shore laboratory analysis. The samples were analysed for DIC using a VINTA sample handling system in conjunction with a coulometer (UIC Inc.) to quantify total CO2 purged from the acidified sample. Measurements of a Certified reference material seawater (CRMs; Scripps Oceanographic Institution) were used for calibrating DIC with daily duplicate CRM measurements.; Replicate information: 20%; Standardization description: Referenced to duplicate measurements of a CRM before each daily batch of samples; Standardization frequency: Daily; CRM manufacturer: Andrew Dickson; Scripps Oceanographic Institute; Preservation method: Mercuric chloride saturated solution; Preservative volume: 100 uL per 500 ml sample bottle = 0.02%; Preservative correction: 1.0002 for 500ml samples; 1.0004 for 250ml samples; Uncertainty: 2.1; Quality flag convention: "WOCE QC flags 1 = Sample drawn from bottle but analysis not recieved; 2 = QC Performed: Acceptable Measurement; 3 = QC Performed: Questionable Measurement; 4 = QC Performed: Bad Measurement; 5 = QC Performed: Not Reported; 6 = Mean of replicate measurements; 7 = Manual chromatographic peak measurement; 8 = Irregular digital chromatographic peak integration; 9 = Not sampled"; Method reference: Dickson; A.G.; Sabine; C.L. and Christian; J.R. (Eds.) 2007. Guide to Best Practices for Ocean CO2 Measurements. PICES Special Publication 3; 191 pp.; https://cdiac.ess-dive.lbl.gov/ftp/oceans/Handbook_2007/Guide_all_in_one.pdf; Chapter 4; SOP 2; Researcher name: Marty Davelaar; Danielle Caleb; Eleanor Simpson; Debby Ianson; Researcher institution: Institute of Ocean Sciences, DFO Parameter or Variable: Total alkalinity; Abbreviation: TA; Unit: umol/kg; Observation type: profile; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Calculation method and parameters: Concentration (umol / kg) = concentration (umoles/litre) / density (10 C;S); Sampling instrument: Niskin bottle; 5 L; Analyzing instrument: In-house automated sampler with Metrohm Dosimat 665 and LabView TM software; Type of titration: Potentiometric multi point titration; Cell type (open or closed): open; Curve fitting method: Gran point; Detailed sampling and analyzing information: Seawater samples were collected from standard depths in 500 mL borosilicate glass reagent bottles. 5 mL of water was removed to allow room for thermal expansion and the sample was preserved within 30 minutes of collection with 0.1 mL of a mercuric chloride saturated solution; then sealed with Apiezon M grease and the ground glass stoppers secured in place with rubber bands. The samples were stored at room temperature and moved to cold stoage on-shore until on-shore laboratory analysis. TA in the sample was determined using an open cell automated potentiometric titration with a Metrohm Dosimat 665 dosing unit controlled by LabView TM software. The multi-point titration; using 0.1N HCl titrant containing 35 g of sodium chloride per litre of acid; was performed in a temperature controlled flask held at 25 C with Gran endpoint determination. Measurements of a Certified reference material seawater (CRMs; Scripps Oceanographic Institution) were used for calibrating TA using daily duplicate CRM measurements. TA measurements were made from the same bottle sample as DIC after DIC had been measured.; Replicate information: 20%; Standardization description: Referenced to duplicate measurements of a CRM before each daily batch of samples; Standardization frequency: Daily; CRM manufacturer: Andrew Dickson; Scripps Oceanographic Institute; Preservation method: Mercuric chloride saturated solution; Preservative volume: 100 uL per 500 ml sample bottle = 0.02%; Preservative correction: 1.0002 for 500ml samples; 1.0004 for 250ml samples; Uncertainty: +/- 3.9; Quality flag convention: WOCE QC flags1 = Sample drawn from bottle but analysis not recieved; 2 = QC Performed: Acceptable Measurement; 3 = QC Performed: Questionable Measurement; 4 = QC Performed: Bad Measurement; 5 = QC Performed: Not Reported; 6 = Mean of replicate measurements; 7 = Manual chromatographic peak measurement; 8 = Irregular digital chromatographic peak integration; 9 = Not sampled; Method reference: Dickson; A.G.; Sabine; C.L. and Christian; J.R. (Eds.) 2007. Guide to Best Practices for Ocean CO2 Measurements. PICES Special Publication 3; 191 pp.; https://cdiac.ess-dive.lbl.gov/ftp/oceans/Handbook_2007/Guide_all_in_one.pdf; Chapter 4; SOP 3b; Researcher name: Marty Davelaar; Danielle Caleb; Eleanor Simpson; Debby Ianson; Researcher institution: Institute of Ocean Sciences Parameter or Variable: CTD Pressure; Abbreviation: CTDPRS; Unit: dbar; Observation type: Profile; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Castaway-CTD Sontek; Researcher name: Eleanor Simpson; Researcher institution: Simon Fraser University Parameter or Variable: CTD Temperature; Abbreviation: CTDTMP; Unit: Degrees C; Observation type: Profile; Measured or calculated: Measured; Sampling instrument: Castaway-CTD Sontek; Researcher name: Eleanor Simpson; Researcher institution: Simon Fraser University Parameter or Variable: CTD Salinity; Abbreviation: CTD_SAL; Observation type: Profile (CTD continuous); Sampling instrument: Castaway- CTD Sontek Parameter or Variable: Bottle Salinity; Abbreviation: SALINTIY_PSS78; Observation type: Profile (discrete samples); Measured or calculated: Measured; Sampling instrument: Niskin bottle; 5 L; Analyzing instrument: Guildline 8400B Salinometer (S/N 68572); Detailed sampling and analyzing information: Salinity samples were collected in 200 mL type ll glass bottles with disposable plastic inserts and screw caps supplied by Ocean Scientific International Limited. They were analyzed in a temperature-controlled lab on a Guildline 8400B Salinometer (S/N 68572) standardized with IAPSO standard seawater.; Replicate information: 15%; Quality flag convention: WOCE QC flags 1 = Sample drawn from bottle but analysis not recieved; 2 = QC Performed: Acceptable Measurement; 3 = QC Performed: Questionable Measurement; 4 = QC Performed: Bad Measurement; 5 = QC Performed: Not Reported; 6 = Mean of replicate measurements; 7 = Manual chromatographic peak measurement; 8 = Irregular digital chromatographic peak integration; 9 = Not sampled; Researcher name: Kenny Scozzafava; Researcher institution: Institute of Ocean Sciences, DFO Parameter or Variable: Dissolved oxygen (DO); Abbreviation: OXYGEN_UMOL_KG; Unit: umol/kg; Observation type: Profile (discrete samples); Measured or calculated: Measured; Sampling instrument: Niskin bottle; 5 L; Analyzing instrument: Metrohm Dosimat model 665 for titrations; Dosimat model 865 for dispensing standards and a PC950 Colorimeter controlled by AutoOxy software V3.4; Detailed sampling and analyzing information: Oxygen samples were analyzed onshore using an automated Winkler titration system with modifications based on Carpenter (1965) and adhering to WOCE protocols; Replicate information: 15%; Quality flag convention: WOCE QC flags 1 = Sample drawn from bottle but analysis not recieved; 2 = QC Performed: Acceptable Measurement; 3 = QC Performed: Questionable Measurement; 4 = QC Performed: Bad Measurement; 5 = QC Performed: Not Reported; 6 = Mean of replicate measurements; 7 = Manual chromatographic peak measurement; 8 = Irregular digital chromatographic peak integration; 9 = Not sampled; Method reference: Carpenter; J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr.; 10: 141-143 Culberson; C.H. 1991. Dissolved oxygen. WOCE Hydrographic Programme Operations and Methods (July 1991). 15pp.); Researcher name: Kenny Scozzafava; Researcher institution: Institute of Ocean Sciences, DFO Parameter or Variable: Nitrate and Nitrite; Abbreviation: NITRATE_NITRITE; Unit: umol/kg; Observation type: Profile (discrete samples); Measured or calculated: Measured; Sampling instrument: Niskin bottle; 5 L; Analyzing instrument: Astoria analyzer; Detailed sampling and analyzing information: Nutrient samples were collected in plastic tubes and quick frozen in the field using dry ice and stored in a freezer at the end of the day. All analysis was performed on frozen samples.; Replicate information: 100; Quality flag convention: "WOCE QC flags 1 = Sample drawn from bottle but analysis not recieved; 2 = QC Performed: Acceptable Measurement; 3 = QC Performed: Questionable Measurement; 4 = QC Performed: Bad Measurement; 5 = QC Performed: Not Reported; 6 = Mean of replicate measurements; 7 = Manual chromatographic peak measurement; 8 = Irregular digital chromatographic peak integration; 9 = Not sampled"; Method reference: Barwell-Clarke; J. and Whitney; F. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences; No. 182; 43 pp.; Researcher name: Mark Belton; Tamara Fraser; Researcher institution: Institute of Ocean Sciences, DFO Parameter or Variable: Silicate; Abbreviation: SILICATE; Unit: umol/kg; Observation type: Profile (discrete samples); Measured or calculated: Measured; Sampling instrument: Niskin bottle; 5 L; Analyzing instrument: Astoria analyzer; Detailed sampling and analyzing information: Nutrient samples were collected in plastic tubes and quick frozen in the field using dry ice and stored in a freezer at the end of the day. All analysis was performed on frozen samples.; Replicate information: 100; Quality flag convention: "WOCE QC flags 1 = Sample drawn from bottle but analysis not recieved; 2 = QC Performed: Acceptable Measurement; 3 = QC Performed: Questionable Measurement; 4 = QC Performed: Bad Measurement; 5 = QC Performed: Not Reported; 6 = Mean of replicate measurements; 7 = Manual chromatographic peak measurement; 8 = Irregular digital chromatographic peak integration; 9 = Not sampled"; Method reference: Barwell-Clarke; J. and Whitney; F. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences; No. 182; 43 pp.; Researcher name: Mark Belton; Tamara Faser; Researcher institution: Institute of Ocean Sciences, DFO Parameter or Variable: Phosphate (PO4 3-); Abbreviation: PHOSPHATE; Unit: umol/kg; Observation type: Profile (discrete samples); Sampling instrument: Niskin bottle; 5 L; Analyzing instrument: Astoria Analyzer; Detailed sampling and analyzing information: Nutrient samples were collected in plastic tubes and quick frozen in the field using dry ice and stored in a freezer at the end of the day. All analysis was performed on frozen samples.; Replicate information: 100; Quality flag convention: "WOCE QC flags 1 = Sample drawn from bottle but analysis not recieved; 2 = QC Performed: Acceptable Measurement; 3 = QC Performed: Questionable Measurement; 4 = QC Performed: Bad Measurement; 5 = QC Performed: Not Reported; 6 = Mean of replicate measurements; 7 = Manual chromatographic peak measurement; 8 = Irregular digital chromatographic peak integration; 9 = Not sampled"; Method reference: Barwell-Clarke; J. and Whitney; F. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences; No. 182; 43 pp.; Researcher name: Mark Belton; Tamara Fraser; Researcher institution: Institute of Ocean Sciences, DFO asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian bottle bottle any type of water bottle sampling device Generic name for water collection device; usually used to determine temperature, salinity and provide water aliquots for measurement of a wide range of parameters; often referred to by a specific type of water sampling bottle, such as a Nansen or Niskin bottle. CTD CTD Conductivity-Temperature-Depth probe CCGS VECTOR hydrographic survey vessel in the Canadian Coast Guard