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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/52" xlink:actuate="onRequest">discrete sample</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/14" xlink:actuate="onRequest">physical</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/18" xlink:actuate="onRequest">profile</gmx:Anchor>
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            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
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          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="platform">platform</gmd:MD_KeywordTypeCode>
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          <gmd:keyword>
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            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="dataCentre">dataCentre</gmd:MD_KeywordTypeCode>
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                <gco:CharacterString>NODC COLLECTING INSTITUTION NAMES THESAURUS</gco:CharacterString>
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      <gmd:descriptiveKeywords>
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            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="dataCentre">dataCentre</gmd:MD_KeywordTypeCode>
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      <gmd:descriptiveKeywords>
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      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
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          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="project">project</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Cruise ID</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
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      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>91AH20170907</gco:CharacterString>
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          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="project">project</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>EXPOCODE</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
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          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
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            <gco:CharacterString>Ocean Carbon and Acidification Data System (OCADS) Project</gco:CharacterString>
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          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="project">project</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Ocean Acidification Search Keywords</gco:CharacterString>
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          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/4eab7956-e59e-4615-8d5c-39a16faa1f27" xlink:actuate="onRequest">EARTH SCIENCE &gt; OCEANS &gt; OCEAN CHEMISTRY &gt; ALKALINITY</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/d3055f47-258e-4556-a885-54cd1fff4680" xlink:actuate="onRequest">EARTH SCIENCE &gt; OCEANS &gt; OCEAN CHEMISTRY &gt; ORGANIC CARBON</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/90aa8838-79bd-4b28-b518-8217e863c385" xlink:actuate="onRequest">EARTH SCIENCE &gt; OCEANS &gt; OCEAN CHEMISTRY &gt; OXYGEN</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/4433600b-f323-458a-b295-352f939aab6b" xlink:actuate="onRequest">EARTH SCIENCE &gt; OCEANS &gt; OCEAN CHEMISTRY &gt; PH</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/46206e8c-8def-406f-9e62-da4e74633a58" xlink:actuate="onRequest">EARTH SCIENCE &gt; OCEANS &gt; OCEAN TEMPERATURE &gt; WATER TEMPERATURE</gmx:Anchor>
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          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
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                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
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                  <gmd:description>
                    <gco:CharacterString>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).</gco:CharacterString>
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              <gmd:description>
                <gco:CharacterString>Parameter or Variable: Total alkalinity;
Abbreviation: ALKALI;
Unit: UMOL/KG;
Observation type: Discrete, bottle;
Measured or calculated: Measured;
Sampling instrument: Bottles;
Analyzing instrument: Samples will be shipped to the US for analysis by Dr. Andrew Dickson’s lab at SIO;
Type of titration: potentiometric titration;
Cell type (open or closed): open;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Method reference: Dickson, Andrew G., Chris Sabine and James R. Christian, editors, "Guide to Best Practices for Ocean CO2 Measurements", Pices Special Publication 3, IOCCP Report No. 8, October 2007, SOP 3b, "Determination of total alkalinity in sea water using an open-cell titration";
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Researcher institution: SIO, USA</gco:CharacterString>
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Abbreviation: PH_TOT;
pH scale: Total Scale;
Observation type: Discrete, bottle;
Measured or calculated: Measured;
Sampling instrument: Niskin Bottles;
Detailed sampling and analyzing information: Samples will be shipped to the US for analysis by Dr. Andrew Dickson’s lab at SIO;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Researcher name: Andrew Dickson;
Researcher institution: SIO</gco:CharacterString>
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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;
Researcher name: Tahlia Henry;
Researcher institution: University of Cape Town</gco:CharacterString>
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                <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;
Researcher name: Tahlia Henry;
Researcher institution: University of Cape Town</gco:CharacterString>
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                <gco:CharacterString>Parameter or Variable: Bottle Salinity;
Abbreviation: SALNTY;
Observation type: Bottle, discrete;
Sampling instrument: CTD;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Researcher name: Tahlia Henry;
Researcher institution: University of Cape Town</gco:CharacterString>
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                <gco:CharacterString>Parameter or Variable: CTD Oxygen;
Abbreviation: CTDOXY;
Unit: UMOL/KG;
Observation type: CTD sensor;
Sampling instrument: CTD;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Researcher name: Tahlia Henry;
Researcher institution: University of Cape Town</gco:CharacterString>
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Abbreviation: OXYGEN;
Unit: UMOL/KG;
Observation type: Bottle, discrete;
Sampling instrument: CTD;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Researcher name: Lynne Talley;
Researcher institution: SIO, USA</gco:CharacterString>
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                <gco:CharacterString>Parameter or Variable: Nutrients;
Abbreviation: SILCAT, NITRAT, NITRIT, PHSPHT;
Unit: UMOL/KG;
Observation type: Bottle, discrete;
Sampling instrument: CTD;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Researcher name: Lynne Talley;
Researcher institution: SIO, USA</gco:CharacterString>
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                <gco:CharacterString>Parameter or Variable: Dissolved ORGANIC Carbon;
Abbreviation: POC, DOC;
Unit: UMOL/KG;
Observation type: Bottle, discrete;
Sampling instrument: CTD bottles;
Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value;
Researcher name: Emmanuel Boss;
Researcher institution: University of Maine</gco:CharacterString>
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            <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
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            <gco:CharacterString>Conductivity-Temperature-Depth probe</gco:CharacterString>
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      </gmi:instrument>
      <gmi:instrument>
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            <gco:CharacterString>Niskin bottle</gco:CharacterString>
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          <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>
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      <gmi:instrument>
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          <gmi:description>
            <gco:CharacterString>generic meter used to measure pH

Any of a class of instruments used to quantify pH in a water or other type of sample.</gco:CharacterString>
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      <gmi:instrument>
        <gmi:MI_Instrument id="inst_bea4">
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            <gco:CharacterString>salinometer</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>generic salinometer

use salinometer when the instrument type used is unclear but the data include salinity measurements</gco:CharacterString>
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        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_be38">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>Total Organic Carbon (TOC) analyzer</gco:CharacterString>
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            </gmd:MD_Identifier>
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          <gmi:type>
            <gco:CharacterString>Total Organic Carbon (TOC) analyzer</gco:CharacterString>
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          <gmi:description>
            <gco:CharacterString>measures the total amount of organic carbon contained in water</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:platform>
        <gmi:MI_Platform id="plat_90de">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>S.A. AGULHAS II</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Updated information from ICES for the vessel S. A. Agulhas II from SOUTH AFRICA. T

Name : S. A. Agulhas II
Flag : SOUTH AFRICA - ZA (ISO Country Code)
Call Sign : ZSNO
Platform Class : 31 Research vessel
IMO : 9577135
Commissioned Date : 2009-11-17
Current Length : 134.2
Built : 2012-04-03
Notes : Icebreaker owned by the South African Government and used as a research vessel and polar research base supply ship.

Additional Information Sources:
- http://www.sanap.ac.za/sanap_agulhas2.html
- http://en.wikipedia.org/wiki/S._A._Agulhas_II
- http://www.marinetraffic.com/ais/details/ships/601986000

Confirmed by NOAA on 2014-02-03.</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
    </gmi:MI_AcquisitionInformation>
  </gmi:acquisitionInformation>
</gmi:MI_Metadata>