<?xml version="1.0" encoding="utf-8" ?><gmi:MI_Metadata
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:gco="http://www.isotc211.org/2005/gco"
  xmlns:gfc="http://www.isotc211.org/2005/gfc"
  xmlns:gmd="http://www.isotc211.org/2005/gmd"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:srv="http://www.isotc211.org/2005/srv"
  xmlns:gml="http://www.opengis.net/gml/3.2"
  xmlns:gsr="http://www.isotc211.org/2005/gsr"
  xmlns:gss="http://www.isotc211.org/2005/gss"
  xmlns:gts="http://www.isotc211.org/2005/gts"
  xmlns:gmi="http://www.isotc211.org/2005/gmi"
  xmlns:gmx="http://www.isotc211.org/2005/gmx"
  xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd">
  <gmd:fileIdentifier>
    <gco:CharacterString>http://lod.bco-dmo.org/id/dataset/917642</gco:CharacterString>
  </gmd:fileIdentifier>
  <gmd:language>
    <gco:CharacterString>eng; USA</gco:CharacterString>
  </gmd:language>
  <gmd:characterSet>
    <gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="utf8">utf8</gmd:MD_CharacterSetCode>
  </gmd:characterSet>
  <gmd:hierarchyLevel>
    <gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset" codeSpace="005">dataset</gmd:MD_ScopeCode>
  </gmd:hierarchyLevel>
  <gmd:hierarchyLevelName>
    <gco:CharacterString>Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project</gco:CharacterString>
  </gmd:hierarchyLevelName>
  <gmd:contact>
    <gmd:CI_ResponsibleParty>
  <gmd:organisationName>
    <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/affiliation/191.rdf" xlink:actuate="onRequest">Biological and Chemical Oceanography Data Management Office (BCO-DMO)</gmx:Anchor>
  </gmd:organisationName>
  <gmd:contactInfo>
    <gmd:CI_Contact>
		  <gmd:phone>
		    <gmd:CI_Telephone>
				  <gmd:voice>
				    <gco:CharacterString>Unavailable</gco:CharacterString>
				  </gmd:voice>
				  <gmd:facsimile>
				    <gco:CharacterString>508-289-2009</gco:CharacterString>
				  </gmd:facsimile>
				</gmd:CI_Telephone>
		  </gmd:phone>
		  <gmd:address>
		    <gmd:CI_Address>
				  <gmd:deliveryPoint>
				    <gco:CharacterString>WHOI MS#36</gco:CharacterString>
				  </gmd:deliveryPoint>
				  <gmd:city>
				    <gco:CharacterString>Woods Hole</gco:CharacterString>
				  </gmd:city>
				  <gmd:administrativeArea>
				    <gco:CharacterString>MA</gco:CharacterString>
				  </gmd:administrativeArea>
				  <gmd:postalCode>
				    <gco:CharacterString>02543</gco:CharacterString>
				  </gmd:postalCode>
				  <gmd:country>
				    <gco:CharacterString>USA</gco:CharacterString>
				  </gmd:country>
				  <gmd:electronicMailAddress>
				    <gco:CharacterString>info@bco-dmo.org</gco:CharacterString>
				  </gmd:electronicMailAddress>
		    </gmd:CI_Address>
		  </gmd:address>
      <gmd:onlineResource>
          <gmd:CI_OnlineResource>
            <gmd:linkage>
              <gmd:URL>http://www.bco-dmo.org</gmd:URL>
            </gmd:linkage>
          </gmd:CI_OnlineResource>
        </gmd:onlineResource>
		  <gmd:hoursOfService>
        <gco:CharacterString>Monday - Friday 8:00am - 5:00pm</gco:CharacterString>
      </gmd:hoursOfService>
		  <gmd:contactInstructions>
		    <gco:CharacterString>For questions regarding this resource, please contact BCO-DMO via the email address provided.</gco:CharacterString>
		  </gmd:contactInstructions>
		</gmd:CI_Contact>
  </gmd:contactInfo>
  <gmd:role>
    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact"  codeSpace="007">pointOfContact</gmd:CI_RoleCode>
  </gmd:role>
</gmd:CI_ResponsibleParty>
  </gmd:contact>
  <gmd:dateStamp>
    <gco:Date>2023-12-28</gco:Date>
  </gmd:dateStamp>
  <gmd:metadataStandardName>
    <gco:CharacterString>ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data</gco:CharacterString>
  </gmd:metadataStandardName>
  <gmd:metadataStandardVersion>
    <gco:CharacterString>ISO 19115-2:2009(E)</gco:CharacterString>
  </gmd:metadataStandardVersion>
  <gmd:referenceSystemInfo xlink:href="https://data.noaa.gov/docucomp/895cc120-95ed-11e0-aa80-0800200c9a66" xlink:title="WGS 84 / World Mercator"/>
  <gmd:identificationInfo>
    <gmd:MD_DataIdentification>
      <gmd:citation>
        <gmd:CI_Citation>
          <gmd:title>
            <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset/917642.rdf" xlink:actuate="onRequest">Total organic carbon content, total nitrogen content, and carbon isotope (13C and 14C) composition of atmospheric particulates from aerosol samples collected on the R/V Dong Fang Hong-3 in the western North Pacific from October to December 2019</gmx:Anchor>
          </gmd:title>
          <gmd:date>
            <gmd:CI_Date>
              <gmd:date>
                <gco:Date>2023-12-28</gco:Date>
              </gmd:date>
              <gmd:dateType>
                <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication" codeSpace="ISOTC211/19115">publication</gmd:CI_DateTypeCode>
              </gmd:dateType>
            </gmd:CI_Date>
          </gmd:date>
          <gmd:date>
            <gmd:CI_Date>
              <gmd:date>
                <gco:Date>2023-12-28</gco:Date>
              </gmd:date>
              <gmd:dateType>
                <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision" codeSpace="ISOTC211/19115">revision</gmd:CI_DateTypeCode>
              </gmd:dateType>
            </gmd:CI_Date>
          </gmd:date>
          <gmd:edition>
            <gco:CharacterString/>
          </gmd:edition>
          <gmd:identifier>
            <gmd:MD_Identifier>
              <gmd:authority>
                <gmd:CI_Citation>
                  <gmd:title>
                    <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/affiliation/272.rdf" xlink:actuate="onRequest">Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)</gmx:Anchor>
                  </gmd:title>
                  <gmd:date>
                    <gmd:CI_Date>
                      <gmd:date>
                        <gco:Date>2024-04-03</gco:Date>
                      </gmd:date>
                      <gmd:dateType>
                        <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication" codeSpace="002">publication</gmd:CI_DateTypeCode>
                      </gmd:dateType>
                    </gmd:CI_Date>
                  </gmd:date>
                                  </gmd:CI_Citation>
              </gmd:authority>
              <gmd:code>
                <gmx:Anchor xlink:href="https://doi.org/10.26008/1912/bco-dmo.917642.1" xlink:title="DOI" xlink:actuate="onRequest">https://doi.org/10.26008/1912/bco-dmo.917642.1</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmd:identifier>
          <gmd:citedResponsibleParty>
           <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="http://orcid.org/0000-0001-6716-6783" xlink:title="ORCID" xlink:actuate="onRequest">Meredith Hastings</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/05gq02987" xlink:title="ROR ID" xlink:actuate="onRequest">Brown University</gmx:Anchor>
              </gmd:organisationName>
              <gmd:positionName>
               <gco:CharacterString></gco:CharacterString>
              </gmd:positionName>
              <gmd:role>
                <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="principalInvestigator" codeSpace="008">principalInvestigator</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
           <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="http://orcid.org/0000-0003-1745-3295" xlink:title="ORCID" xlink:actuate="onRequest">Hayley N. Schiebel</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/05y50nr98" xlink:title="ROR ID" xlink:actuate="onRequest">Suffolk University</gmx:Anchor>
              </gmd:organisationName>
              <gmd:positionName>
               <gco:CharacterString></gco:CharacterString>
              </gmd:positionName>
              <gmd:role>
                <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="principalInvestigator" codeSpace="008">principalInvestigator</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
  <gmd:organisationName>
    <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/affiliation/191.rdf" xlink:actuate="onRequest">Biological and Chemical Oceanography Data Management Office (BCO-DMO)</gmx:Anchor>
  </gmd:organisationName>
  <gmd:contactInfo>
    <gmd:CI_Contact>
		  <gmd:phone>
		    <gmd:CI_Telephone>
				  <gmd:voice>
				    <gco:CharacterString>Unavailable</gco:CharacterString>
				  </gmd:voice>
				  <gmd:facsimile>
				    <gco:CharacterString>508-289-2009</gco:CharacterString>
				  </gmd:facsimile>
				</gmd:CI_Telephone>
		  </gmd:phone>
		  <gmd:address>
		    <gmd:CI_Address>
				  <gmd:deliveryPoint>
				    <gco:CharacterString>WHOI MS#36</gco:CharacterString>
				  </gmd:deliveryPoint>
				  <gmd:city>
				    <gco:CharacterString>Woods Hole</gco:CharacterString>
				  </gmd:city>
				  <gmd:administrativeArea>
				    <gco:CharacterString>MA</gco:CharacterString>
				  </gmd:administrativeArea>
				  <gmd:postalCode>
				    <gco:CharacterString>02543</gco:CharacterString>
				  </gmd:postalCode>
				  <gmd:country>
				    <gco:CharacterString>USA</gco:CharacterString>
				  </gmd:country>
				  <gmd:electronicMailAddress>
				    <gco:CharacterString>info@bco-dmo.org</gco:CharacterString>
				  </gmd:electronicMailAddress>
		    </gmd:CI_Address>
		  </gmd:address>
      <gmd:onlineResource>
          <gmd:CI_OnlineResource>
            <gmd:linkage>
              <gmd:URL>http://www.bco-dmo.org</gmd:URL>
            </gmd:linkage>
          </gmd:CI_OnlineResource>
        </gmd:onlineResource>
		  <gmd:hoursOfService>
        <gco:CharacterString>Monday - Friday 8:00am - 5:00pm</gco:CharacterString>
      </gmd:hoursOfService>
		  <gmd:contactInstructions>
		    <gco:CharacterString>For questions regarding this resource, please contact BCO-DMO via the email address provided.</gco:CharacterString>
		  </gmd:contactInstructions>
		</gmd:CI_Contact>
  </gmd:contactInfo>
  <gmd:role>
    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher" >publisher</gmd:CI_RoleCode>
  </gmd:role>
</gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:otherCitationDetails>
            <gco:CharacterString>Cite this dataset as: Hastings, M., Schiebel, H. N. (2024) Total organic carbon content, total nitrogen content, and carbon isotope (13C and 14C) composition of atmospheric particulates from aerosol samples collected on the R/V Dong Fang Hong-3 in the western North Pacific from October to December 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-12-28 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.917642.1 [access date]</gco:CharacterString>
          </gmd:otherCitationDetails>
          </gmd:CI_Citation>
      </gmd:citation>
      <gmd:abstract>
        <gco:CharacterString>North Pacific Atmospheric Particulates Dataset Description:  Methods and Sampling: &amp;lt;p&amp;gt;On-ship aerosol sampling was conducted on the R/V Dong Fang Hong-3 during a cruise to the western North Pacific from October 31 to December 1, 2019 (Chief Scientist Zaohui, Chen of the Ocean University of China, (&amp;lt;a href=&amp;quot;mailto:chenzhaohui@ouc.edu.cn&amp;quot;&amp;gt;chenzhaohui@ouc.edu.cn&amp;lt;/a&amp;gt;)). The ship sailed from Qingdao, China (36°1'56&amp;quot;N, 120°13'56&amp;quot;E) to the western North Pacific (14°0'2&amp;quot;N, 149°35'56&amp;quot;E). Two portable aerosol particle samplers (model 2030, Qingdao Laoying Environmental Technology Co.) were used with a filter size of 9 centimeters (cm) O.D. (outer diameter). The GF/F filters were precombusted (550 degrees Celsius (°C), 4 hours) before use, and the sampling period was 18 to 72 hours for each filter with an air ﬂow rate of 100 liters pers minute (L/min) based on the cruise track. A total of 16 samples were collected during the cruise.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;For the aerosol samples, measurements were made of the concentrations of aerosol particulate organic carbon (POC), total nitrogen (TN), and carbon isotope (¹³C and ¹⁴C) compositions of aerosol OC. All measurements were conducted at the Center for Isotope Geochemistry and Geochronology (CIGG) at the Qingdao National Laboratory for Marine Science and Technology (QNLM) in Qingdao, China. For atmospheric POC measurements, a cut piece of filter containing particles was acidifed first with 10% high-purity HCl to remove inorganic carbon and then dried at 50°C. Concentrations of POC and TN were measured using an elemental analyzer (Elementar vario Isotope select) with analytical standard deviations of ±0.03% for OC, and ±0.04% for TN (n = 6). The δ¹³C values of POC were measured using a Thermal Delta V Advantage isotope ratio mass spectrometer coupled with an Elemental Analyzer-IsoLink CN. Values of δ¹³C were reported in ‰ relative to ¹³C standards (IAEA-CH-3, cellulose, and IAEA-600 caﬀeine), and the analytic precision was ≤0.2‰ (n = 10). For POC ¹⁴C measurements, the pretreated filters were placed separately in double quartz tubes (precombusted at 850°C for 2 hours) with CuO and Ag wires added. The tubes were then evacuated on a vacuum line, ﬂame sealed, and combusted at 850°C for 2 hours (Druffel et al., 1992). CO₂ resulting from POC oxidation was collected cryogenically and quantified monometrically on a vacuum line. The purified CO₂ was converted to graphite using the closed tube iron reduction method (Xu et al., 2007; Walker et al., 2019) and ¹⁴C was measured by accelerator mass spectrometry (AMS, NEC 0.5MV XCAMS). Δ¹⁴C results were reported, and conventional radiocarbon ages [years before present (BP)] were calculated based on the study by Stuiver and Polach (1977).&amp;lt;/p&amp;gt;</gco:CharacterString>
      </gmd:abstract>
      <gmd:credit>
        <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/award/910823.rdf" xlink:title="OCE-1851318" xlink:actuate="onRequest">Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1851318 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1851318</gmx:Anchor>
      </gmd:credit>
        <gmd:credit>
        <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/award/910830.rdf" xlink:title="OCE-1851343" xlink:actuate="onRequest">Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1851343 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1851343</gmx:Anchor>
      </gmd:credit>
        <gmd:status>
        <gmd:MD_ProgressCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ProgressCode" codeListValue="completed">completed</gmd:MD_ProgressCode>
      </gmd:status>
      <gmd:pointOfContact>
        <gmd:CI_ResponsibleParty>
          <gmd:individualName>
            <gmx:Anchor xlink:href="http://orcid.org/0000-0001-6716-6783" xlink:title="ORCID" xlink:actuate="onRequest">Meredith Hastings</gmx:Anchor>
          </gmd:individualName>
          <gmd:organisationName>
            <gmx:Anchor xlink:href="https://ror.org/05gq02987" xlink:title="ROR ID" xlink:actuate="onRequest">Brown University</gmx:Anchor>
          </gmd:organisationName>
          <gmd:contactInfo>
            <gmd:CI_Contact>
            <gmd:phone>
                <gmd:CI_Telephone>
                  <gmd:voice>
                    <gco:CharacterString>401-863-3658</gco:CharacterString>
                  </gmd:voice>
                </gmd:CI_Telephone>
              </gmd:phone>
            <gmd:address>
                <gmd:CI_Address>
                                  <gmd:deliveryPoint>
                    <gco:CharacterString>324 Brook Street Box 1846</gco:CharacterString>
                  </gmd:deliveryPoint>
                                  <gmd:city>
                    <gco:CharacterString>Providence</gco:CharacterString>
                  </gmd:city>                  <gmd:administrativeArea>
                    <gco:CharacterString>RI</gco:CharacterString>
                  </gmd:administrativeArea>                  <gmd:postalCode>
                    <gco:CharacterString>02912</gco:CharacterString>
                  </gmd:postalCode>                  <gmd:country>
                    <gco:CharacterString>USA</gco:CharacterString>
                  </gmd:country>                  <gmd:electronicMailAddress>
                    <gco:CharacterString>meredith_hastings@brown.edu</gco:CharacterString>
                  </gmd:electronicMailAddress>
                </gmd:CI_Address>
              </gmd:address>
            </gmd:CI_Contact>
          </gmd:contactInfo>
          <gmd:role>
            <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact" codeSpace="007">pointOfContact</gmd:CI_RoleCode>
          </gmd:role>
        </gmd:CI_ResponsibleParty>
      </gmd:pointOfContact>
      <gmd:pointOfContact>
        <gmd:CI_ResponsibleParty>
          <gmd:individualName>
            <gmx:Anchor xlink:href="http://orcid.org/0000-0003-1745-3295" xlink:title="ORCID" xlink:actuate="onRequest">Hayley N. Schiebel</gmx:Anchor>
          </gmd:individualName>
          <gmd:organisationName>
            <gmx:Anchor xlink:href="https://ror.org/05y50nr98" xlink:title="ROR ID" xlink:actuate="onRequest">Suffolk University</gmx:Anchor>
          </gmd:organisationName>
          <gmd:contactInfo>
            <gmd:CI_Contact>
            <gmd:phone>
                <gmd:CI_Telephone>
                  <gmd:voice>
                    <gco:CharacterString>617-994-6811</gco:CharacterString>
                  </gmd:voice>
                </gmd:CI_Telephone>
              </gmd:phone>
            <gmd:address>
                <gmd:CI_Address>
                                  <gmd:deliveryPoint>
                    <gco:CharacterString>20 Somerset 5th Floor, Rm. 529</gco:CharacterString>
                  </gmd:deliveryPoint>
                                  <gmd:city>
                    <gco:CharacterString>Boston</gco:CharacterString>
                  </gmd:city>                  <gmd:administrativeArea>
                    <gco:CharacterString>MA</gco:CharacterString>
                  </gmd:administrativeArea>                  <gmd:postalCode>
                    <gco:CharacterString>02108-2770</gco:CharacterString>
                  </gmd:postalCode>                  <gmd:country>
                    <gco:CharacterString>USA</gco:CharacterString>
                  </gmd:country>                  <gmd:electronicMailAddress>
                    <gco:CharacterString>hschiebel@suffolk.edu</gco:CharacterString>
                  </gmd:electronicMailAddress>
                </gmd:CI_Address>
              </gmd:address>
            </gmd:CI_Contact>
          </gmd:contactInfo>
          <gmd:role>
            <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact" codeSpace="007">pointOfContact</gmd:CI_RoleCode>
          </gmd:role>
        </gmd:CI_ResponsibleParty>
      </gmd:pointOfContact>
            <gmd:resourceMaintenance>
        <gmd:MD_MaintenanceInformation>
          <gmd:maintenanceAndUpdateFrequency>
            <gmd:MD_MaintenanceFrequencyCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded" codeSpace="009">asNeeded</gmd:MD_MaintenanceFrequencyCode>
          </gmd:maintenanceAndUpdateFrequency>
          <gmd:maintenanceNote>
            <gco:CharacterString>Dataset Version: 1</gco:CharacterString>
          </gmd:maintenanceNote>
          </gmd:MD_MaintenanceInformation>
      </gmd:resourceMaintenance>
      <gmd:resourceFormat>
        <gmd:MD_Format>
          <gmd:name>
             <gco:CharacterString>Unknown</gco:CharacterString>
          </gmd:name>
          <gmd:version gco:nilReason="unknown"/>
          </gmd:MD_Format>
      </gmd:resourceFormat>
            <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917668.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/960.rdf" xlink:actuate="onRequest">Sample_number</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917669.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/1070.rdf" xlink:actuate="onRequest">Date</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917670.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/1075.rdf" xlink:actuate="onRequest">Start_time</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917671.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/1908.rdf" xlink:actuate="onRequest">Start_ISO_DateTime_UTC</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917672.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/1838.rdf" xlink:actuate="onRequest">Sampling_period</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917673.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/730.rdf" xlink:actuate="onRequest">Latitude</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917674.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/731.rdf" xlink:actuate="onRequest">Longitude</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917675.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/1871.rdf" xlink:actuate="onRequest">Total_air_volume</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917676.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/1678.rdf" xlink:actuate="onRequest">Particle_weight</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917677.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/917666.rdf" xlink:actuate="onRequest">Total_particulates_concentration</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917678.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/934.rdf" xlink:actuate="onRequest">POC</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917679.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/707573.rdf" xlink:actuate="onRequest">TN</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917680.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/671305.rdf" xlink:actuate="onRequest">POC_d13C</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917681.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/823732.rdf" xlink:actuate="onRequest">d14C</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917682.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/823732.rdf" xlink:actuate="onRequest">d14C_stdev</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917683.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/1628.rdf" xlink:actuate="onRequest">Age_14C</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-parameter/917684.rdf" xlink:title="http://lod.bco-dmo.org/id/parameter/1628.rdf" xlink:actuate="onRequest">Age_14C_stdev</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-instrument/917664.rdf" xlink:title="http://lod.bco-dmo.org/id/instrument/527.rdf" xlink:actuate="onRequest">accelerator mass spectrometry</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-instrument/917661.rdf" xlink:title="http://lod.bco-dmo.org/id/instrument/691.rdf" xlink:actuate="onRequest">portable aerosol particle samplers</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-instrument/917662.rdf" xlink:title="http://lod.bco-dmo.org/id/instrument/546339.rdf" xlink:actuate="onRequest">Elementar vario Isotope select</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset-instrument/917663.rdf" xlink:title="http://lod.bco-dmo.org/id/instrument/469.rdf" xlink:actuate="onRequest">Thermal Delta V advantage</gmx:Anchor>
        </gmd:keyword>
        <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme" codeSpace="005">theme</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>None, User defined</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="unknown"/>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
            <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/960.rdf" xlink:title="Parameter" xlink:actuate="onRequest">sample identification</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/1070.rdf" xlink:title="Parameter" xlink:actuate="onRequest">date</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/1075.rdf" xlink:title="Parameter" xlink:actuate="onRequest">time of day</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/1908.rdf" xlink:title="Parameter" xlink:actuate="onRequest">ISO_DateTime_UTC</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/1838.rdf" xlink:title="Parameter" xlink:actuate="onRequest">time_elapsed</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/730.rdf" xlink:title="Parameter" xlink:actuate="onRequest">latitude</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/731.rdf" xlink:title="Parameter" xlink:actuate="onRequest">longitude</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/1871.rdf" xlink:title="Parameter" xlink:actuate="onRequest">sample_volume</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/1678.rdf" xlink:title="Parameter" xlink:actuate="onRequest">weight</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/917666.rdf" xlink:title="Parameter" xlink:actuate="onRequest">total particulate matter</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/934.rdf" xlink:title="Parameter" xlink:actuate="onRequest">particulate organic Carbon (POC)</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/707573.rdf" xlink:title="Parameter" xlink:actuate="onRequest">Nitrogen</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/671305.rdf" xlink:title="Parameter" xlink:actuate="onRequest">d13C</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/823732.rdf" xlink:title="Parameter" xlink:actuate="onRequest">14C</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/parameter/1628.rdf" xlink:title="Parameter" xlink:actuate="onRequest">carbon-14 age dating</gmx:Anchor>
        </gmd:keyword>
        <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="featureType">featureType</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>BCO-DMO Standard Parameters</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="unknown"/>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
            <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/instrument/527.rdf" xlink:title="Instrument" xlink:actuate="onRequest">Accelerator Mass Spectrometer</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/instrument/691.rdf" xlink:title="Instrument" xlink:actuate="onRequest">Aerosol Sampler</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/instrument/546339.rdf" xlink:title="Instrument" xlink:actuate="onRequest">Elemental Analyzer</gmx:Anchor>
        </gmd:keyword>
                <gmd:keyword>
          <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/instrument/469.rdf" xlink:title="Instrument" xlink:actuate="onRequest">Isotope-ratio Mass Spectrometer</gmx:Anchor>
        </gmd:keyword>
        <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="instrument">instrument</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>BCO-DMO Standard Instruments</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="unknown"/>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:accessConstraints>
            <gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions" codeSpace="008">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:accessConstraints>
          <gmd:useConstraints>
            <gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions" codeSpace="008">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:useConstraints>
          <gmd:otherConstraints>
            <gco:CharacterString>Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
              </gmd:resourceConstraints>
      <gmd:aggregationInfo>
        <gmd:MD_AggregateInformation>
          <gmd:aggregateDataSetName>
              <gmd:CI_Citation>
                <gmd:title>
                  <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/project/910824.rdf" xlink:title="Project" xlink:actuate="onRequest">Collaborative Research: Characterization of Reactive Nitrogen in The North Pacific Atmosphere</gmx:Anchor>
                </gmd:title>
                <gmd:date gco:nilReason="inapplicable"/>
                <gmd:citedResponsibleParty>
                  <gmd:CI_ResponsibleParty>
                    <gmd:contactInfo>
                      <gmd:CI_Contact>
                        <gmd:onlineResource>
                          <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://osprey.bco-dmo.org/project/910824</gmd:URL>
                          </gmd:linkage>
                          <gmd:name>
                            <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/project/910824.rdf" xlink:title="Project Name" xlink:actuate="onRequest">Collaborative Research: Characterization of Reactive Nitrogen in The North Pacific Atmosphere</gmx:Anchor>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>&lt;p&gt;&lt;strong&gt;NSF Award Abstract:&lt;/strong&gt;&lt;br /&gt;
Nitrogen is an essential element for life, and its availability can limit the growth of phytoplankton in the surface waters of the oceans. One source of nitrogen to surface waters is deposition from the atmosphere, which is the result of reactive nitrogen emissions from both human (anthropogenic) activities and natural processes. Anthropogenic nitrogen emissions to the atmosphere and nitrogen deposition to the oceans have increased exponentially since preindustrial times. In fact, global modeling studies have suggested that as much as 80% of total nitrogen deposition to the oceans is anthropogenic in origin, and that the magnitude of input to the global oceans rivals estimates of biological nitrogen fixation. The impacts associated with this increased nitrogen deposition are clear in both terrestrial and coastal systems, but the implications for open ocean biogeochemistry are less well studied. Recent work in the North Pacific Ocean (NPO) has suggested that increased nitrogen due to anthropogenic atmospheric deposition is detectable even in the open ocean, while other work can explain nutrient dynamics based upon natural biological and physical processes. The investigators propose to study the influence of both anthropogenic and natural sources on the deposition of nitrogen (as nitrate, ammonium, and organic nitrogen) in the NPO. This will be based on collection of aerosol and rainwater samples year-round at two sites: (1) Chang-Dao Island, China where they expect high anthropogenic nitrogen inputs; and (2) Oahu, Hawaii where they expect marine sources to dominate. They will also collect ship-based samples in the marine boundary layer via already planned short-term research cruises in each season. In addition to the scientific outcomes, this project will provide for human resources and professional development of the team members (faculty members, a graduate student, undergraduate student, and technicians), advance international collaborations, and contribute to education and public outreach. Identifying the sources of nitrogen deposition to the open ocean is crucial for understanding anthropogenic impacts on biogeochemical cycles. A primary question is, is nitrogen deposition the result of external, anthropogenic processes or does it represent recycled nitrogen from the ocean's point of view? The specific objectives of this project are to: characterize the atmospheric composition and sources of inorganic (ammonium and nitrate) and organic nitrogen with an emphasis on seasonality; diagnose the influence of air-sea exchange versus anthropogenic sources of nitrogen on atmospheric deposition; and determine the isotopic composition of gaseous and particulate inorganic nitrogen in the marine boundary layer via ship-based sample collections in the NPO. Using concentration and isotopic measurements of reactive nitrogen species, in addition to transport and chemical box modeling, the study aims to characterize nitrogen deposition in two locations with very different source influences. This study will provide the first comprehensive, seasonal analysis of the isotopic values of reactive nitrogen species in the NPO atmosphere where nitrogen deposition is considered intense. Ultimately this project will lead to a better understanding of how anthropogenic changes in the atmospheric nitrogen cycle may influence the biogeochemistry of the surface ocean as well as the composition of the marine atmosphere.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.&lt;/p&gt;</gco:CharacterString>
                          </gmd:description>
                          <gmd:function>
                            <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information"/>
                          </gmd:function>
                      </gmd:CI_OnlineResource>
                    </gmd:onlineResource>
                  </gmd:CI_Contact>
                </gmd:contactInfo>
                <gmd:role/>
              </gmd:CI_ResponsibleParty>
            </gmd:citedResponsibleParty>
          </gmd:CI_Citation>
        </gmd:aggregateDataSetName>
          <gmd:aggregateDataSetIdentifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/project/910824.rdf" xlink:title="Project Acronym" xlink:actuate="onRequest">North Pacific Atmos</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmd:aggregateDataSetIdentifier>
          <gmd:associationType>
            <gmd:DS_AssociationTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_AssociationTypeCode" codeListValue="largerWorkCitation">largerWorkCitation</gmd:DS_AssociationTypeCode>
          </gmd:associationType>
          <gmd:initiativeType>
            <gmd:DS_InitiativeTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_InitiativeTypeCode" codeListValue="project">project</gmd:DS_InitiativeTypeCode>
          </gmd:initiativeType>
        </gmd:MD_AggregateInformation>
      </gmd:aggregationInfo>
      <gmd:language>
        <gco:CharacterString>eng; USA</gco:CharacterString>
      </gmd:language>
      <gmd:topicCategory>
        <gmd:MD_TopicCategoryCode>oceans</gmd:MD_TopicCategoryCode>
      </gmd:topicCategory>
       <gmd:extent>
        <gmd:EX_Extent id="boundingExtent"><gmd:geographicElement>
            <gmd:EX_GeographicBoundingBox id="boundingGeographicBoundingBox">
              <gmd:westBoundLongitude>
                <gco:Decimal>120.232</gco:Decimal>
              </gmd:westBoundLongitude>
              <gmd:eastBoundLongitude>
                <gco:Decimal>153.333</gco:Decimal>
              </gmd:eastBoundLongitude>
              <gmd:southBoundLatitude>
                <gco:Decimal>14.0006</gco:Decimal>
              </gmd:southBoundLatitude>
              <gmd:northBoundLatitude>
                <gco:Decimal>37.0003</gco:Decimal>
              </gmd:northBoundLatitude>
            </gmd:EX_GeographicBoundingBox>
          </gmd:geographicElement>
        <gmd:temporalElement>
            <gmd:EX_TemporalExtent>
              <gmd:extent>
                <gml:TimePeriod gml:id="boundingTemporalExtent">
                  <gml:beginPosition>2019-10-31</gml:beginPosition>
                  <gml:endPosition>2019-11-29</gml:endPosition>
                </gml:TimePeriod>
              </gmd:extent>
            </gmd:EX_TemporalExtent>
          </gmd:temporalElement>
          </gmd:EX_Extent>
      </gmd:extent>
      <gmd:extent>
          <gmd:EX_Extent>
            <gmd:geographicElement>
              <gmd:EX_GeographicDescription>
                <gmd:geographicIdentifier>
                  <gmd:MD_Identifier>
                    <gmd:code>
                      <gco:CharacterString>coastal China atmosphere, Northwestern Pacific waters and atmos, Hawaii atmosphere</gco:CharacterString>
                    </gmd:code>
                  </gmd:MD_Identifier>
                </gmd:geographicIdentifier>
              </gmd:EX_GeographicDescription>
            </gmd:geographicElement>
          </gmd:EX_Extent>
        </gmd:extent></gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <gmd:contentInfo>
    <gmd:MD_FeatureCatalogueDescription>
      <gmd:includedWithDataset>
        <gco:Boolean>0</gco:Boolean>
      </gmd:includedWithDataset>
      <gmd:featureCatalogueCitation>
        <gmd:CI_Citation>
          <gmd:title>
            <gco:CharacterString>BCO-DMO catalogue of parameters from Total organic carbon content, total nitrogen content, and carbon isotope (13C and 14C) composition of atmospheric particulates from aerosol samples collected on the R/V Dong Fang Hong-3 in the western North Pacific from October to December 2019</gco:CharacterString>
          </gmd:title>
          <gmd:date gco:nilReason="unknown"/>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
  <gmd:organisationName>
    <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/affiliation/191.rdf" xlink:actuate="onRequest">Biological and Chemical Oceanography Data Management Office (BCO-DMO)</gmx:Anchor>
  </gmd:organisationName>
  <gmd:contactInfo>
    <gmd:CI_Contact>
		  <gmd:phone>
		    <gmd:CI_Telephone>
				  <gmd:voice>
				    <gco:CharacterString>Unavailable</gco:CharacterString>
				  </gmd:voice>
				  <gmd:facsimile>
				    <gco:CharacterString>508-289-2009</gco:CharacterString>
				  </gmd:facsimile>
				</gmd:CI_Telephone>
		  </gmd:phone>
		  <gmd:address>
		    <gmd:CI_Address>
				  <gmd:deliveryPoint>
				    <gco:CharacterString>WHOI MS#36</gco:CharacterString>
				  </gmd:deliveryPoint>
				  <gmd:city>
				    <gco:CharacterString>Woods Hole</gco:CharacterString>
				  </gmd:city>
				  <gmd:administrativeArea>
				    <gco:CharacterString>MA</gco:CharacterString>
				  </gmd:administrativeArea>
				  <gmd:postalCode>
				    <gco:CharacterString>02543</gco:CharacterString>
				  </gmd:postalCode>
				  <gmd:country>
				    <gco:CharacterString>USA</gco:CharacterString>
				  </gmd:country>
				  <gmd:electronicMailAddress>
				    <gco:CharacterString>info@bco-dmo.org</gco:CharacterString>
				  </gmd:electronicMailAddress>
		    </gmd:CI_Address>
		  </gmd:address>
      <gmd:onlineResource>
          <gmd:CI_OnlineResource>
            <gmd:linkage>
              <gmd:URL>http://www.bco-dmo.org</gmd:URL>
            </gmd:linkage>
          </gmd:CI_OnlineResource>
        </gmd:onlineResource>
		  <gmd:hoursOfService>
        <gco:CharacterString>Monday - Friday 8:00am - 5:00pm</gco:CharacterString>
      </gmd:hoursOfService>
		  <gmd:contactInstructions>
		    <gco:CharacterString>For questions regarding this resource, please contact BCO-DMO via the email address provided.</gco:CharacterString>
		  </gmd:contactInstructions>
		</gmd:CI_Contact>
  </gmd:contactInfo>
  <gmd:role>
    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact"  codeSpace="007">pointOfContact</gmd:CI_RoleCode>
  </gmd:role>
</gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:otherCitationDetails>
            <gco:CharacterString>
            http://lod.bco-dmo.org/id/dataset-parameter/917668.rdf
	Name: Sample_number
	Units: unitless
	Description: &lt;p&gt;Sample number. The atmospheric particulates samplers were labeled from 1 to 16.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917669.rdf
	Name: Date
	Units: unitless
	Description: &lt;p&gt;The sampling date&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917670.rdf
	Name: Start_time
	Units: unitless
	Description: &lt;p&gt;Time when sampling started (in UTC)&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917671.rdf
	Name: Start_ISO_DateTime_UTC
	Units: unitless
	Description: &lt;p&gt;Date and time (UTC) when sampling started in ISO 8601 format&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917672.rdf
	Name: Sampling_period
	Units: hours (h)
	Description: &lt;p&gt;Duration of the sampling event&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917673.rdf
	Name: Latitude
	Units: decimal degrees
	Description: &lt;p&gt;Latitude of the sampling location (positive values = North)&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917674.rdf
	Name: Longitude
	Units: decimal degrees
	Description: &lt;p&gt;Longitude of the sampling location (positive values = East)&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917675.rdf
	Name: Total_air_volume
	Units: liters (L)
	Description: &lt;p&gt;Total air volume during the sampling&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917676.rdf
	Name: Particle_weight
	Units: milligrams (mg)
	Description: &lt;p&gt;Atmospheric particulates weight of each sample&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917677.rdf
	Name: Total_particulates_concentration
	Units: micrograms per cubic meter (ug/m3)
	Description: &lt;p&gt;Concentration of total particulate matter&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917678.rdf
	Name: POC
	Units: percent (%)
	Description: &lt;p&gt;Content of particulate organic carbon&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917679.rdf
	Name: TN
	Units: percent (%)
	Description: &lt;p&gt;Content of total nitrogen&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917680.rdf
	Name: POC_d13C
	Units: per mil (‰)
	Description: &lt;p&gt;d13C value of POC&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917681.rdf
	Name: d14C
	Units: per mil (‰)
	Description: &lt;p&gt;d14C value of POC&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917682.rdf
	Name: d14C_stdev
	Units: per mil (‰)
	Description: &lt;p&gt;Standard deviation for d14C value of POC&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917683.rdf
	Name: Age_14C
	Units: Year BP
	Description: &lt;p&gt;14C ages of POC&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/917684.rdf
	Name: Age_14C_stdev
	Units: Year BP
	Description: &lt;p&gt;Standard deviation for 14C-age of POC&lt;/p&gt; 
</gco:CharacterString>
          </gmd:otherCitationDetails>
        </gmd:CI_Citation>
      </gmd:featureCatalogueCitation>
      <gmd:featureCatalogueCitation>
        <gmd:CI_Citation>
          <gmd:title>
            <gco:CharacterString>GB/NERC/BODC &gt; British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom</gco:CharacterString>
          </gmd:title>
          <gmd:date gco:nilReason="unknown"/>
          <gmd:citedResponsibleParty xlink:href="https://data.noaa.gov/docucomp/3D8FE2C9DA324D40939C8D007587E011" xlink:title="GB/NERC/BODC &gt; British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom"/>
          <gmd:otherCitationDetails>
            <gco:CharacterString>
            </gco:CharacterString>
          </gmd:otherCitationDetails>
        </gmd:CI_Citation>
      </gmd:featureCatalogueCitation>
    </gmd:MD_FeatureCatalogueDescription>
  </gmd:contentInfo>
  <gmd:distributionInfo>
    <gmd:MD_Distribution>
      <gmd:distributor>
        <gmd:MD_Distributor>
          <gmd:distributorContact>
            <gmd:CI_ResponsibleParty>
  <gmd:organisationName>
    <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/affiliation/191.rdf" xlink:actuate="onRequest">Biological and Chemical Oceanography Data Management Office (BCO-DMO)</gmx:Anchor>
  </gmd:organisationName>
  <gmd:contactInfo>
    <gmd:CI_Contact>
		  <gmd:phone>
		    <gmd:CI_Telephone>
				  <gmd:voice>
				    <gco:CharacterString>Unavailable</gco:CharacterString>
				  </gmd:voice>
				  <gmd:facsimile>
				    <gco:CharacterString>508-289-2009</gco:CharacterString>
				  </gmd:facsimile>
				</gmd:CI_Telephone>
		  </gmd:phone>
		  <gmd:address>
		    <gmd:CI_Address>
				  <gmd:deliveryPoint>
				    <gco:CharacterString>WHOI MS#36</gco:CharacterString>
				  </gmd:deliveryPoint>
				  <gmd:city>
				    <gco:CharacterString>Woods Hole</gco:CharacterString>
				  </gmd:city>
				  <gmd:administrativeArea>
				    <gco:CharacterString>MA</gco:CharacterString>
				  </gmd:administrativeArea>
				  <gmd:postalCode>
				    <gco:CharacterString>02543</gco:CharacterString>
				  </gmd:postalCode>
				  <gmd:country>
				    <gco:CharacterString>USA</gco:CharacterString>
				  </gmd:country>
				  <gmd:electronicMailAddress>
				    <gco:CharacterString>info@bco-dmo.org</gco:CharacterString>
				  </gmd:electronicMailAddress>
		    </gmd:CI_Address>
		  </gmd:address>
      <gmd:onlineResource>
          <gmd:CI_OnlineResource>
            <gmd:linkage>
              <gmd:URL>http://www.bco-dmo.org</gmd:URL>
            </gmd:linkage>
          </gmd:CI_OnlineResource>
        </gmd:onlineResource>
		  <gmd:hoursOfService>
        <gco:CharacterString>Monday - Friday 8:00am - 5:00pm</gco:CharacterString>
      </gmd:hoursOfService>
		  <gmd:contactInstructions>
		    <gco:CharacterString>For questions regarding this resource, please contact BCO-DMO via the email address provided.</gco:CharacterString>
		  </gmd:contactInstructions>
		</gmd:CI_Contact>
  </gmd:contactInfo>
  <gmd:role>
    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact"  codeSpace="007">pointOfContact</gmd:CI_RoleCode>
  </gmd:role>
</gmd:CI_ResponsibleParty>
          </gmd:distributorContact>
        </gmd:MD_Distributor>
      </gmd:distributor>
      <gmd:transferOptions>
          <gmd:MD_DigitalTransferOptions>
          <gmd:transferSize>
              <gco:Real>1899</gco:Real>
            </gmd:transferSize><gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage><gmd:URL>https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/62583218-547a-4cbb-b2e4-b69faa719279/content</gmd:URL></gmd:linkage>              <gmd:name>
                <gco:CharacterString></gco:CharacterString>
              </gmd:name><gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
              <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
        <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://doi.org/10.26008/1912/bco-dmo.917642.1</gmd:URL>
              </gmd:linkage>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        <gmd:offLine>
            <gmd:MD_Medium>
              <gmd:name>
                 <gmd:MD_MediumNameCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_MediumNameCode" codeListValue="onLine">onLine</gmd:MD_MediumNameCode>
              </gmd:name>
            </gmd:MD_Medium>
          </gmd:offLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
    </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:dataQualityInfo>
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope>
          <gmd:level>
            <gmd:MD_ScopeCode codeList="https://data.noaa.gov/resources/iso19139/schema/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 xlink:title="Methods and Sampling">
            <gmd:LI_ProcessStep>
              <gmd:description>
                <gco:CharacterString>&amp;lt;p&amp;gt;On-ship aerosol sampling was conducted on the R/V Dong Fang Hong-3 during a cruise to the western North Pacific from October 31 to December 1, 2019 (Chief Scientist Zaohui, Chen of the Ocean University of China, (&amp;lt;a href=&amp;quot;mailto:chenzhaohui@ouc.edu.cn&amp;quot;&amp;gt;chenzhaohui@ouc.edu.cn&amp;lt;/a&amp;gt;)). The ship sailed from Qingdao, China (36°1'56&amp;quot;N, 120°13'56&amp;quot;E) to the western North Pacific (14°0'2&amp;quot;N, 149°35'56&amp;quot;E). Two portable aerosol particle samplers (model 2030, Qingdao Laoying Environmental Technology Co.) were used with a filter size of 9 centimeters (cm) O.D. (outer diameter). The GF/F filters were precombusted (550 degrees Celsius (°C), 4 hours) before use, and the sampling period was 18 to 72 hours for each filter with an air ﬂow rate of 100 liters pers minute (L/min) based on the cruise track. A total of 16 samples were collected during the cruise.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;For the aerosol samples, measurements were made of the concentrations of aerosol particulate organic carbon (POC), total nitrogen (TN), and carbon isotope (¹³C and ¹⁴C) compositions of aerosol OC. All measurements were conducted at the Center for Isotope Geochemistry and Geochronology (CIGG) at the Qingdao National Laboratory for Marine Science and Technology (QNLM) in Qingdao, China. For atmospheric POC measurements, a cut piece of filter containing particles was acidifed first with 10% high-purity HCl to remove inorganic carbon and then dried at 50°C. Concentrations of POC and TN were measured using an elemental analyzer (Elementar vario Isotope select) with analytical standard deviations of ±0.03% for OC, and ±0.04% for TN (n = 6). The δ¹³C values of POC were measured using a Thermal Delta V Advantage isotope ratio mass spectrometer coupled with an Elemental Analyzer-IsoLink CN. Values of δ¹³C were reported in ‰ relative to ¹³C standards (IAEA-CH-3, cellulose, and IAEA-600 caﬀeine), and the analytic precision was ≤0.2‰ (n = 10). For POC ¹⁴C measurements, the pretreated filters were placed separately in double quartz tubes (precombusted at 850°C for 2 hours) with CuO and Ag wires added. The tubes were then evacuated on a vacuum line, ﬂame sealed, and combusted at 850°C for 2 hours (Druffel et al., 1992). CO₂ resulting from POC oxidation was collected cryogenically and quantified monometrically on a vacuum line. The purified CO₂ was converted to graphite using the closed tube iron reduction method (Xu et al., 2007; Walker et al., 2019) and ¹⁴C was measured by accelerator mass spectrometry (AMS, NEC 0.5MV XCAMS). Δ¹⁴C results were reported, and conventional radiocarbon ages [years before present (BP)] were calculated based on the study by Stuiver and Polach (1977).&amp;lt;/p&amp;gt;</gco:CharacterString>
              </gmd:description>
              <gmd:source>
                <gmd:LI_Source>
                  <gmd:sourceCitation>
                    <gmd:CI_Citation>
                      <gmd:title>
                        <gco:CharacterString>Specified by the Principal Investigator(s)</gco:CharacterString>
                      </gmd:title>
                      <gmd:date gco:nilReason="unknown"/>
                    </gmd:CI_Citation>
                  </gmd:sourceCitation>
                </gmd:LI_Source>
              </gmd:source>
            </gmd:LI_ProcessStep>
          </gmd:processStep>
          <gmd:processStep xlink:title="BCO-DMO Data Processing Description">
              <gmd:LI_ProcessStep>
                <gmd:description>
                  <gco:CharacterString>- Imported the original file &amp;quot;Western Pacific Cruise datas.xlsx&amp;quot; into the BCO-DMO system.
- Marked &amp;quot;n.d.&amp;quot; as a missing data value (missing data are blank/empty in the final CSV file).
- Renamed fields (column headers) to comply with BCO-DMO naming conventions.
- Converted latitude and longitude values from degrees, minutes, and seconds to decimal degrees.
- Rounded the latitude and longitude values to 5 decimal places.
- Converted the Date column to YYYY-MM-DD format.
- Created a date-time column in ISO 8601 format (UTC).
- Saved the final file as &amp;quot;917642_v1_north_pacific_atmospheric_particulates.csv&amp;quot;.</gco:CharacterString>
                </gmd:description>
                <gmd:source>
                  <gmd:LI_Source>
                    <gmd:sourceCitation>
                      <gmd:CI_Citation>
                        <gmd:title>
                          <gco:CharacterString>Specified by BCO-DMO Data Managers</gco:CharacterString>
                        </gmd:title>
                        <gmd:date gco:nilReason="unknown"/>
                      </gmd:CI_Citation>
                    </gmd:sourceCitation>
                  </gmd:LI_Source>
                </gmd:source>
              </gmd:LI_ProcessStep>
            </gmd:processStep>
          </gmd:LI_Lineage>
      </gmd:lineage>
   </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <gmd:metadataMaintenance>
    <gmd:MD_MaintenanceInformation>
      <gmd:maintenanceAndUpdateFrequency>
        <gmd:MD_MaintenanceFrequencyCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded" codeSpace="009">asNeeded</gmd:MD_MaintenanceFrequencyCode>
      </gmd:maintenanceAndUpdateFrequency>
      <gmd:maintenanceNote>
        <gco:CharacterString>7.x-1.1</gco:CharacterString>
      </gmd:maintenanceNote>
      <gmd:contact>
        <gmd:CI_ResponsibleParty>
  <gmd:organisationName>
    <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/affiliation/191.rdf" xlink:actuate="onRequest">Biological and Chemical Oceanography Data Management Office (BCO-DMO)</gmx:Anchor>
  </gmd:organisationName>
  <gmd:contactInfo>
    <gmd:CI_Contact>
		  <gmd:phone>
		    <gmd:CI_Telephone>
				  <gmd:voice>
				    <gco:CharacterString>Unavailable</gco:CharacterString>
				  </gmd:voice>
				  <gmd:facsimile>
				    <gco:CharacterString>508-289-2009</gco:CharacterString>
				  </gmd:facsimile>
				</gmd:CI_Telephone>
		  </gmd:phone>
		  <gmd:address>
		    <gmd:CI_Address>
				  <gmd:deliveryPoint>
				    <gco:CharacterString>WHOI MS#36</gco:CharacterString>
				  </gmd:deliveryPoint>
				  <gmd:city>
				    <gco:CharacterString>Woods Hole</gco:CharacterString>
				  </gmd:city>
				  <gmd:administrativeArea>
				    <gco:CharacterString>MA</gco:CharacterString>
				  </gmd:administrativeArea>
				  <gmd:postalCode>
				    <gco:CharacterString>02543</gco:CharacterString>
				  </gmd:postalCode>
				  <gmd:country>
				    <gco:CharacterString>USA</gco:CharacterString>
				  </gmd:country>
				  <gmd:electronicMailAddress>
				    <gco:CharacterString>info@bco-dmo.org</gco:CharacterString>
				  </gmd:electronicMailAddress>
		    </gmd:CI_Address>
		  </gmd:address>
      <gmd:onlineResource>
          <gmd:CI_OnlineResource>
            <gmd:linkage>
              <gmd:URL>http://www.bco-dmo.org</gmd:URL>
            </gmd:linkage>
          </gmd:CI_OnlineResource>
        </gmd:onlineResource>
		  <gmd:hoursOfService>
        <gco:CharacterString>Monday - Friday 8:00am - 5:00pm</gco:CharacterString>
      </gmd:hoursOfService>
		  <gmd:contactInstructions>
		    <gco:CharacterString>For questions regarding this resource, please contact BCO-DMO via the email address provided.</gco:CharacterString>
		  </gmd:contactInstructions>
		</gmd:CI_Contact>
  </gmd:contactInfo>
  <gmd:role>
    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact"  codeSpace="007">pointOfContact</gmd:CI_RoleCode>
  </gmd:role>
</gmd:CI_ResponsibleParty>
      </gmd:contact>
    </gmd:MD_MaintenanceInformation>
  </gmd:metadataMaintenance>
  <gmi:acquisitionInformation>
    <gmi:MI_AcquisitionInformation>
    <gmi:instrument>
        <gmi:MI_Instrument>
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/instrument/527.rdf" xlink:title="Accelerator Mass Spectrometer" xlink:actuate="onRequest">accelerator mass spectrometry</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>accelerator mass spectrometry</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>PI Supplied Instrument Name: accelerator mass spectrometry PI Supplied Instrument Description:The Δ14C values of POC were measured by accelerator mass spectrometry (AMS, NEC 0.5MV XCAMS). Instrument Name: Accelerator Mass Spectrometer Instrument Short Name:AMS   Instrument Description: An AMS measures &quot;long-lived radionuclides that occur naturally in our environment. AMS uses a particle accelerator in conjunction with ion sources, large magnets, and detectors to separate out interferences and count single atoms in the presence of 1x1015 (a thousand million million) stable atoms, measuring the mass-to-charge ratio of the products of sample molecule disassociation, atom ionization and ion acceleration.&quot; AMS permits ultra low-level measurement of compound concentrations and isotope ratios that traditional alpha-spectrometry cannot provide. More from Purdue University: http://www.physics.purdue.edu/primelab/introduction/ams.html Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB17/</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument>
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/instrument/691.rdf" xlink:title="Aerosol Sampler" xlink:actuate="onRequest">portable aerosol particle samplers</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>portable aerosol particle samplers</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>PI Supplied Instrument Name: portable aerosol particle samplers PI Supplied Instrument Description:Aerosol samples were collected with portable aerosol particle samplers (model 2030, Qingdao LaoyingE nvironmental Technology Co.) with a filter size of 9 cm O.D. Instrument Name: Aerosol Sampler Instrument Short Name:   Instrument Description: A device that collects a sample of aerosol (dry particles or liquid droplets) from the atmosphere. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/13/</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument>
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/instrument/546339.rdf" xlink:title="Elemental Analyzer" xlink:actuate="onRequest">Elementar vario Isotope select</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>Elementar vario Isotope select</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>PI Supplied Instrument Name: Elementar vario Isotope select PI Supplied Instrument Description:The concentrations of POC and TN were measured using an elemental analyzer (Elementar vario Isotope select). Instrument Name: Elemental Analyzer Instrument Short Name:   Instrument Description: Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB01/</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument>
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/instrument/469.rdf" xlink:title="Isotope-ratio Mass Spectrometer" xlink:actuate="onRequest">Thermal Delta V advantage</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>Thermal Delta V advantage</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>PI Supplied Instrument Name: Thermal Delta V advantage PI Supplied Instrument Description:The δ13C values of POC were measured using a Thermal Delta V advantage isotope ratio mass spectrometer coupled with an Elemental Analyzer-IsoLink CN. Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS   Instrument Description: The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      </gmi:MI_AcquisitionInformation>
  </gmi:acquisitionInformation>
</gmi:MI_Metadata>
