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          </gmd:processStep>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <gmd:dataQualityInfo>
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope>
          <gmd:level>
            <gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>
          </gmd:level>
        </gmd:DQ_Scope>
      </gmd:scope>
      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: Dissolved Inorganic Carbon;
Abbreviation: TCARBN;
Unit: UMOL/KG;
Observation type: Discrete, bottle;
Measured or calculated: Measured;
Sampling instrument: Niskin Bottles;
Analyzing instrument: Coulometer, SOMMA1;
Detailed sampling and analyzing information: 250mL glass bottles, preserved with 100 microliters of HgCl2, glass stoppers sealed with elastic and plastic clips. Stored in the dark at 4C and analyzed ashore. Total inorganic carbon and alkalinity were both analyzed from the same bottle.;
Replicate information: 1% of samples collected in replicate;
Standardization description: reference solution;
Standardization frequency: Daily;
CRM manufacturer: Andrew Dickson Laboratory at SIO;
CRM batch number: 123;
Preservation method: Mercuric chloride solution;
Preservative volume: 100 μL;
Preservative correction: (known standard value/measured standard value) X analyzed sample value X 1.0002 (HgCl2 correction);
Uncertainty: 2.2 μmol kg-1;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
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.;
Researcher name: Lisa Miller;
Researcher institution: Institute of Ocean Sciences, Fisheries and Oceans Canada</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: Total alkalinity;
Abbreviation: ALKALI;
Unit: UMOL/KG;
Observation type: Discrete, bottle;
Measured or calculated: Measured;
Sampling instrument: Niskin Bottles;
Analyzing instrument: potentiometric titrator, IOS1;
Type of titration: Potentiometric;
Cell type (open or closed): Open;
Curve fitting method: Non-linear least squares using Labview;
Detailed sampling and analyzing information: 250mL glass bottles, preserved with 100 microliters of HgCl2, glass stoppers sealed with elastic and plastic clips. Stored in the dark at 4C and analyzed ashore. Total inorganic carbon and alkalinity were both analyzed from the same bottle.;
Replicate information: 1% of samples collected in replicate;
Standardization description: reference solution;
Standardization frequency: Daily;
CRM manufacturer: Certified Reference Material (Dr. Andrew Dickson, Marine Physical Laboratory, La Jolla, California);
CRM batch number: CRM batch 123;
Preservation method: Mercuric chloride;
Preservative volume: 100 μL;
Uncertainty: 2 μmol/kg;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
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.;
Researcher name: Lisa Miller;
Researcher institution: Institute of Ocean Sciences, Fisheries and Oceans Canada</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: CTD Temperature;
Abbreviation: CTDTMP;
Unit: degrees celcius;
Observation type: CTD sensor;
Sampling instrument: CTD;
Analyzing instrument: CTD;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: CTD Salinity;
Abbreviation: CTDSAL;
Observation type: CTD sensor;
Sampling instrument: CTD;
Analyzing instrument: CTD;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: Oxygen-18 ratio in water;
Abbreviation: O-18;
Unit: Del;
Observation type: discrete;
Sampling instrument: CTD Niskin Bottles;
Analyzing instrument: Collected in 30-mL glass screw-cap vials w/plastic caps and sealed w/parafilm. Measured ashore at G.G. Hatch Isotope Laboratories, University of Ottawa;
Uncertainty: 0.01;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Method reference: LGR User Manual</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <gmd:metadataMaintenance>
    <gmd:MD_MaintenanceInformation>
      <gmd:maintenanceAndUpdateFrequency>
        <gmd:MD_MaintenanceFrequencyCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded">asNeeded</gmd:MD_MaintenanceFrequencyCode>
      </gmd:maintenanceAndUpdateFrequency>
      <gmd:maintenanceNote>
        <gco:CharacterString>Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.</gco:CharacterString>
      </gmd:maintenanceNote>
      <gmd:contact>
        <gmd:CI_ResponsibleParty>
          <gmd:organisationName>
            <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
          </gmd:organisationName>
          <gmd:role>
            <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
          </gmd:role>
        </gmd:CI_ResponsibleParty>
      </gmd:contact>
    </gmd:MD_MaintenanceInformation>
  </gmd:metadataMaintenance>
  <gmi:acquisitionInformation>
    <gmi:MI_AcquisitionInformation id="AMS">
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_be58">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>carbon dioxide (CO2) gas analyzer</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>carbon dioxide (CO2) gas analyzer</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>measures gaseous carbon dioxide

Carbon dioxide gas analyzer has often been referred to as LI-COR, because a lot of researchers choose to use products manufactured by LI-COR incorporation for their carbon dioxide measurement. The main component of a carbon dioxide analyzer is a nondispersive infrared (NDIR) spectroscopic sensors to detect CO2 in a gaseous environment by its characteristic absorption.

Carbon dioxide (CO2) gas analyzer works together with carbon dioxide (CO2) equilibrator (insttypes_id 184) to measure carbon dioxide in the water.

To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water.</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_bee7">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>CTD</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>CTD</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>Conductivity-Temperature-Depth probe</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_be3d">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>Niskin bottle</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>Niskin bottle</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>Device for obtaining samples of seawater at a specific depth

Why special entry for Niskin bottle but no entry for Nansen bottle?</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_be28">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>titrator</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>titrator</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>titrator</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:platform>
        <gmi:MI_Platform id="plat_902b">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>CCGS Amundsen</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>ICES request for the vessel Amundsen from CANADA.
NOTE: Canada platform SIR JOHN FRANKLIN (NODC Code=18SZ) is a previous name for this platform and had the same call sign.

Name : Amundsen
Flag : CANADA - CA (ISO Country Code)
Call Sign : CGDT
Title : CCGS
Platform Class : 31 Research vessel
IMO : 7510846
Commissioned Date : 2003
Current Length : 98.33
Built : 1979
Previous Name (Notes): SIR JOHN FRANKLIN
Notes : Converted to coast guard icebreaker/research vessel in 2003

Additional Information Sources:

- http://www.amundsen.ulaval.ca/index.php?url=11210

Same Vessels Info:
18SZ - SIR JOHN FRANKLIN

Confirmed by NOAA on 2013-04-15.</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
    </gmi:MI_AcquisitionInformation>
  </gmi:acquisitionInformation>
</gmi:MI_Metadata>