<?xml version="1.0" encoding="utf-8"?>
<gmi:MI_Metadata xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gmi="http://www.isotc211.org/2005/gmi" xmlns:gmx="http://www.isotc211.org/2005/gmx" 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:gml="http://www.opengis.net/gml/3.2" xmlns:dif="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/" xmlns:fn="http://www.w3.org/2005/02/xpath-functions" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd">
 <gmd:fileIdentifier>
  <gco:CharacterString>noaa-tree-19843</gco:CharacterString>
 </gmd:fileIdentifier>
 <gmd:language>
  <gco:CharacterString>eng; USA</gco:CharacterString>
 </gmd:language>
 <gmd:characterSet>
  <gmd:MD_CharacterSetCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="utf8">utf8</gmd:MD_CharacterSetCode>
 </gmd:characterSet>
 <gmd:hierarchyLevel>
  <gmd:MD_ScopeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>
 </gmd:hierarchyLevel>
 <gmd:contact>
  <gmd:CI_ResponsibleParty>
   <gmd:individualName>
    <gco:CharacterString>Bauer, Bruce</gco:CharacterString>
   </gmd:individualName>
   <gmd:organisationName>
    <gco:CharacterString>DOC/NOAA/NESDIS/NCEI &gt; National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce</gco:CharacterString>
   </gmd:organisationName>
   <gmd:contactInfo>
    <gmd:CI_Contact>
     <gmd:phone>
      <gmd:CI_Telephone>
       <gmd:voice>
        <gco:CharacterString>+1 303-497-6280</gco:CharacterString>
       </gmd:voice>
       <gmd:facsimile>
        <gco:CharacterString>+1 303-497-6513</gco:CharacterString>
       </gmd:facsimile>
      </gmd:CI_Telephone>
     </gmd:phone>
     <gmd:address>
      <gmd:CI_Address>
       <gmd:deliveryPoint>
        <gco:CharacterString>325 Broadway, E/CC23</gco:CharacterString>
       </gmd:deliveryPoint>
       <gmd:city>
        <gco:CharacterString>Boulder</gco:CharacterString>
       </gmd:city>
       <gmd:administrativeArea>
        <gco:CharacterString>CO</gco:CharacterString>
       </gmd:administrativeArea>
       <gmd:postalCode>
        <gco:CharacterString>80305-3328</gco:CharacterString>
       </gmd:postalCode>
       <gmd:country>
        <gco:CharacterString>USA</gco:CharacterString>
       </gmd:country>
       <gmd:electronicMailAddress>
        <gco:CharacterString>paleo@noaa.gov</gco:CharacterString>
       </gmd:electronicMailAddress>
      </gmd:CI_Address>
     </gmd:address>
    </gmd:CI_Contact>
   </gmd:contactInfo>
   <gmd:role>
    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact">pointOfContact</gmd:CI_RoleCode>
   </gmd:role>
  </gmd:CI_ResponsibleParty>
 </gmd:contact>
 <gmd:dateStamp>
  <gco:Date>2019-02-13</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:identificationInfo>
  <gmd:MD_DataIdentification>
   <gmd:citation>
    <gmd:CI_Citation>
     <gmd:title>
      <gco:CharacterString>NOAA/WDS Paleoclimatology - Wiles - Wright Mountain - TSME - ITRDB AK150</gco:CharacterString>
     </gmd:title>
     <gmd:date>
      <gmd:CI_Date>
       <gmd:date>
        <gco:Date>2016-02-04</gco:Date>
       </gmd:date>
       <gmd:dateType>
        <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
       </gmd:dateType>
      </gmd:CI_Date>
     </gmd:date>
     <gmd:edition gco:nilReason="missing"></gmd:edition>
     <gmd:identifier>
      <gmd:MD_Identifier>
       <gmd:code>
        <gmx:Anchor xlink:href="https://doi.org/10.25921/xwfv-gf55" xlink:title="DOI" xlink:actuate="onRequest">doi:10.25921/xwfv-gf55</gmx:Anchor>
       </gmd:code>
      </gmd:MD_Identifier>
     </gmd:identifier>
     <gmd:identifier>
      <gmd:MD_Identifier>
       <gmd:code>
        <gco:CharacterString>noaa-tree-19843</gco:CharacterString>
       </gmd:code>
      </gmd:MD_Identifier>
     </gmd:identifier>
     <gmd:identifier>
      <gmd:MD_Identifier>
       <gmd:code>
        <gco:CharacterString>NCEI DSI 1200_01</gco:CharacterString>
       </gmd:code>
      </gmd:MD_Identifier>
     </gmd:identifier>
     <gmd:citedResponsibleParty>
      <gmd:CI_ResponsibleParty>
       <gmd:individualName>
        <gco:CharacterString>Wiles, G.</gco:CharacterString>
       </gmd:individualName>
       <gmd:role>
        <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="originator">originator</gmd:CI_RoleCode>
       </gmd:role>
      </gmd:CI_ResponsibleParty>
     </gmd:citedResponsibleParty>
     <gmd:citedResponsibleParty>
      <gmd:CI_ResponsibleParty>
       <gmd:individualName>
        <gco:CharacterString>Wiles, G.</gco:CharacterString>
       </gmd:individualName>
       <gmd:role>
        <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
       </gmd:role>
      </gmd:CI_ResponsibleParty>
     </gmd:citedResponsibleParty>
     <gmd:citedResponsibleParty>
      <gmd:CI_ResponsibleParty>
       <gmd:individualName>
        <gco:CharacterString>Jarvis, S.K.</gco:CharacterString>
       </gmd:individualName>
       <gmd:role>
        <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="originator">originator</gmd:CI_RoleCode>
       </gmd:role>
      </gmd:CI_ResponsibleParty>
     </gmd:citedResponsibleParty>
     <gmd:citedResponsibleParty>
      <gmd:CI_ResponsibleParty>
       <gmd:individualName>
        <gco:CharacterString>Jarvis, S.K.</gco:CharacterString>
       </gmd:individualName>
       <gmd:role>
        <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
       </gmd:role>
      </gmd:CI_ResponsibleParty>
     </gmd:citedResponsibleParty>
     <gmd:citedResponsibleParty>
      <gmd:CI_ResponsibleParty>
       <gmd:individualName>
        <gco:CharacterString>D&apos;Arrigo, R.D.</gco:CharacterString>
       </gmd:individualName>
       <gmd:role>
        <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="originator">originator</gmd:CI_RoleCode>
       </gmd:role>
      </gmd:CI_ResponsibleParty>
     </gmd:citedResponsibleParty>
     <gmd:citedResponsibleParty>
      <gmd:CI_ResponsibleParty>
       <gmd:individualName>
        <gco:CharacterString>D&apos;Arrigo, R.D.</gco:CharacterString>
       </gmd:individualName>
       <gmd:role>
        <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
       </gmd:role>
      </gmd:CI_ResponsibleParty>
     </gmd:citedResponsibleParty>
     <gmd:citedResponsibleParty>
      <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="publisher">publisher</gmd:CI_RoleCode>
       </gmd:role>
      </gmd:CI_ResponsibleParty>
     </gmd:citedResponsibleParty>
     <gmd:presentationForm>
      <gmd:CI_PresentationFormCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_PresentationFormCode" codeListValue="tableDigital">tableDigital</gmd:CI_PresentationFormCode>
     </gmd:presentationForm>
    </gmd:CI_Citation>
   </gmd:citation>
   <gmd:abstract>
    <gco:CharacterString>This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Tree Ring. The data include parameters of tree ring with a geographic location of Alaska, United States Of America. The time period coverage is from 398 to -60 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.</gco:CharacterString>
   </gmd:abstract>
   <gmd:purpose>
    <gco:CharacterString>Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives. Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.html</gco:CharacterString>
   </gmd:purpose>
   <gmd:status>
    <gmd:MD_ProgressCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ProgressCode" codeListValue="completed">completed</gmd:MD_ProgressCode>
   </gmd:status>
   <gmd:pointOfContact>
    <gmd:CI_ResponsibleParty>
     <gmd:individualName>
      <gco:CharacterString>Bauer, Bruce</gco:CharacterString>
     </gmd:individualName>
     <gmd:organisationName>
      <gco:CharacterString>DOC/NOAA/NESDIS/NCEI &gt; National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce</gco:CharacterString>
     </gmd:organisationName>
     <gmd:contactInfo>
      <gmd:CI_Contact>
       <gmd:phone>
        <gmd:CI_Telephone>
         <gmd:voice>
          <gco:CharacterString>+1 303-497-6280</gco:CharacterString>
         </gmd:voice>
         <gmd:facsimile>
          <gco:CharacterString>+1 303-497-6513</gco:CharacterString>
         </gmd:facsimile>
        </gmd:CI_Telephone>
       </gmd:phone>
       <gmd:address>
        <gmd:CI_Address>
         <gmd:deliveryPoint>
          <gco:CharacterString>325 Broadway, E/CC23</gco:CharacterString>
         </gmd:deliveryPoint>
         <gmd:city>
          <gco:CharacterString>Boulder</gco:CharacterString>
         </gmd:city>
         <gmd:administrativeArea>
          <gco:CharacterString>CO</gco:CharacterString>
         </gmd:administrativeArea>
         <gmd:postalCode>
          <gco:CharacterString>80305-3328</gco:CharacterString>
         </gmd:postalCode>
         <gmd:country>
          <gco:CharacterString>USA</gco:CharacterString>
         </gmd:country>
         <gmd:electronicMailAddress>
          <gco:CharacterString>paleo@noaa.gov</gco:CharacterString>
         </gmd:electronicMailAddress>
        </gmd:CI_Address>
       </gmd:address>
      </gmd:CI_Contact>
     </gmd:contactInfo>
     <gmd:role>
      <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact">pointOfContact</gmd:CI_RoleCode>
     </gmd:role>
    </gmd:CI_ResponsibleParty>
   </gmd:pointOfContact>
   <gmd:graphicOverview>
    <gmd:MD_BrowseGraphic>
     <gmd:fileName>
      <gco:CharacterString>https://www.ncdc.noaa.gov/c/images/pc-default-tree.png</gco:CharacterString>
     </gmd:fileName>
     <gmd:fileDescription>
      <gco:CharacterString>Paleoclimatology - Tree Ring</gco:CharacterString>
     </gmd:fileDescription>
     <gmd:fileType>
      <gco:CharacterString>PNG</gco:CharacterString>
     </gmd:fileType>
    </gmd:MD_BrowseGraphic>
   </gmd:graphicOverview>
   <gmd:descriptiveKeywords>
    <gmd:MD_Keywords>
     <gmd:keyword>
      <gco:CharacterString>Earth Science &gt; Climate Indicators &gt; Paleoclimate Indicators &gt; Biological Records &gt; Tree Rings</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>Earth Science &gt; Paleoclimate &gt; Land Records &gt; Tree Rings</gco:CharacterString>
     </gmd:keyword>
     <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>
     </gmd:type>
     <gmd:thesaurusName>
      <gmd:CI_Citation>
       <gmd:title>
        <gco:CharacterString>Global Change Master Directory (GCMD) Science Keywords</gco:CharacterString>
       </gmd:title>
       <gmd:date>
        <gmd:CI_Date>
         <gmd:date>
          <gco:Date>2018</gco:Date>
         </gmd:date>
         <gmd:dateType>
          <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
         </gmd:dateType>
        </gmd:CI_Date>
       </gmd:date>
       <gmd:edition>
        <gco:CharacterString>Version 8.6</gco:CharacterString>
       </gmd:edition>
       <gmd:citedResponsibleParty>
        <gmd:CI_ResponsibleParty>
         <gmd:organisationName>
          <gco:CharacterString>Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)</gco:CharacterString>
         </gmd:organisationName>
         <gmd:contactInfo>
          <gmd:CI_Contact>
           <gmd:onlineResource>
            <gmd:CI_OnlineResource>
             <gmd:linkage>
              <gmd:URL>https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords</gmd:URL>
             </gmd:linkage>
             <gmd:protocol>
              <gco:CharacterString>HTTPS</gco:CharacterString>
             </gmd:protocol>
             <gmd:applicationProfile>
              <gco:CharacterString>Web Browser</gco:CharacterString>
             </gmd:applicationProfile>
             <gmd:name>
              <gco:CharacterString>Global Change Master Directory (GCMD) Keywords</gco:CharacterString>
             </gmd:name>
             <gmd:description>
              <gco:CharacterString>The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.</gco:CharacterString>
             </gmd:description>
             <gmd:function>
              <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
             </gmd:function>
            </gmd:CI_OnlineResource>
           </gmd:onlineResource>
          </gmd:CI_Contact>
         </gmd:contactInfo>
         <gmd:role>
          <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
         </gmd:role>
        </gmd:CI_ResponsibleParty>
       </gmd:citedResponsibleParty>
      </gmd:CI_Citation>
     </gmd:thesaurusName>
    </gmd:MD_Keywords>
   </gmd:descriptiveKeywords>
   <gmd:descriptiveKeywords>
    <gmd:MD_Keywords>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree ring</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>earth science &gt; paleoclimate &gt; tree-ring &gt; width</gco:CharacterString>
     </gmd:keyword>
     <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>
     </gmd:type>
     <gmd:thesaurusName>
      <gmd:CI_Citation>
       <gmd:title>
        <gco:CharacterString>Global Change Master Directory (GCMD) Science Keywords</gco:CharacterString>
       </gmd:title>
       <gmd:date>
        <gmd:CI_Date>
         <gmd:date>
          <gco:Date>2018</gco:Date>
         </gmd:date>
         <gmd:dateType>
          <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
         </gmd:dateType>
        </gmd:CI_Date>
       </gmd:date>
       <gmd:edition>
        <gco:CharacterString>Version 8.6</gco:CharacterString>
       </gmd:edition>
       <gmd:citedResponsibleParty>
        <gmd:CI_ResponsibleParty>
         <gmd:organisationName>
          <gco:CharacterString>Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)</gco:CharacterString>
         </gmd:organisationName>
         <gmd:contactInfo>
          <gmd:CI_Contact>
           <gmd:onlineResource>
            <gmd:CI_OnlineResource>
             <gmd:linkage>
              <gmd:URL>https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords</gmd:URL>
             </gmd:linkage>
             <gmd:protocol>
              <gco:CharacterString>HTTPS</gco:CharacterString>
             </gmd:protocol>
             <gmd:applicationProfile>
              <gco:CharacterString>Web Browser</gco:CharacterString>
             </gmd:applicationProfile>
             <gmd:name>
              <gco:CharacterString>Global Change Master Directory (GCMD) Keywords</gco:CharacterString>
             </gmd:name>
             <gmd:description>
              <gco:CharacterString>The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.</gco:CharacterString>
             </gmd:description>
             <gmd:function>
              <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
             </gmd:function>
            </gmd:CI_OnlineResource>
           </gmd:onlineResource>
          </gmd:CI_Contact>
         </gmd:contactInfo>
         <gmd:role>
          <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
         </gmd:role>
        </gmd:CI_ResponsibleParty>
       </gmd:citedResponsibleParty>
      </gmd:CI_Citation>
     </gmd:thesaurusName>
    </gmd:MD_Keywords>
   </gmd:descriptiveKeywords>
   <gmd:descriptiveKeywords>
    <gmd:MD_Keywords>
     <gmd:keyword>
      <gco:CharacterString>TSME</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>Tsuga mertensiana (Bong.) Carrière</gco:CharacterString>
     </gmd:keyword>
     <gmd:keyword>
      <gco:CharacterString>mountain hemlock</gco:CharacterString>
     </gmd:keyword>
     <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>
     </gmd:type>
     <gmd:thesaurusName gco:nilReason="missing"></gmd:thesaurusName>
    </gmd:MD_Keywords>
   </gmd:descriptiveKeywords>
   <gmd:descriptiveKeywords>
    <gmd:MD_Keywords>
     <gmd:keyword>
      <gco:CharacterString>Continent &gt; North America &gt; United States Of America &gt; Alaska&gt; Wright Mountain Alaska &gt; LATITUDE 58.74 &gt; LONGITUDE -135.98</gco:CharacterString>
     </gmd:keyword>
     <gmd:type>
      <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place">place</gmd:MD_KeywordTypeCode>
     </gmd:type>
     <gmd:thesaurusName gco:nilReason="missing"></gmd:thesaurusName>
    </gmd:MD_Keywords>
   </gmd:descriptiveKeywords>
   <gmd:resourceConstraints>
    <gmd:MD_LegalConstraints>
     <gmd:useConstraints>
      <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
     </gmd:useConstraints>
     <gmd:otherConstraints>
      <gco:CharacterString>Cite as: Wiles, G.; Jarvis, S.K.; D&apos;Arrigo, R.D. (2016-02-04): NOAA/WDS Paleoclimatology - Wiles - Wright Mountain - TSME - ITRDB AK150. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/xwfv-gf55. Accessed [date].</gco:CharacterString>
     </gmd:otherConstraints>
    </gmd:MD_LegalConstraints>
   </gmd:resourceConstraints>
   <gmd:resourceConstraints xlink:title="Distribution Liability">
    <gmd:MD_LegalConstraints xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" uuid="dadd4ac3-2b9f-4db5-8603-71285b94c3d7">
     <gmd:accessConstraints>
      <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
     </gmd:accessConstraints>
     <gmd:otherConstraints>
      <gco:CharacterString>Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.</gco:CharacterString>
     </gmd:otherConstraints>
    </gmd:MD_LegalConstraints>
   </gmd:resourceConstraints>
   <gmd:resourceConstraints xlink:title="Use Liability">
    <gmd:MD_LegalConstraints xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" uuid="e8163b1b-fb5a-4f4e-8d5c-ed06da10e21b">
     <gmd:useConstraints>
      <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
     </gmd:useConstraints>
     <gmd:otherConstraints>
      <gco:CharacterString>Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.</gco:CharacterString>
     </gmd:otherConstraints>
    </gmd:MD_LegalConstraints>
   </gmd:resourceConstraints>
   <gmd:resourceConstraints>
    <gmd:MD_LegalConstraints>
     <gmd:accessConstraints>
      <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
     </gmd:accessConstraints>
     <gmd:otherConstraints>
      <gco:CharacterString>None</gco:CharacterString>
     </gmd:otherConstraints>
    </gmd:MD_LegalConstraints>
   </gmd:resourceConstraints>
   <gmd:resourceConstraints>
    <gmd:MD_LegalConstraints>
     <gmd:useConstraints>
      <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
     </gmd:useConstraints>
     <gmd:otherConstraints>
      <gco:CharacterString>Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.</gco:CharacterString>
     </gmd:otherConstraints>
    </gmd:MD_LegalConstraints>
   </gmd:resourceConstraints>
   <gmd:aggregationInfo>
    <gmd:MD_AggregateInformation>
     <gmd:aggregateDataSetName>
      <gmd:CI_Citation>
       <gmd:title>
        <gco:CharacterString>Surface air temperature variability reconstructed with tree rings for the Gulf of Alaska over the past 1200 years</gco:CharacterString>
       </gmd:title>
       <gmd:date>
        <gmd:CI_Date>
         <gmd:date>
          <gco:Date>2014</gco:Date>
         </gmd:date>
         <gmd:dateType>
          <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
         </gmd:dateType>
        </gmd:CI_Date>
       </gmd:date>
       <gmd:citedResponsibleParty>
        <gmd:CI_ResponsibleParty>
         <gmd:individualName>
          <gco:CharacterString>Gregory C. Wiles, Rosanne D. D&apos;Arrigo, David Barclay, Rob S. Wilson, Stephanie K. Jarvis, Lauren Vargo, and David Frank</gco:CharacterString>
         </gmd:individualName>
         <gmd:role>
          <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
         </gmd:role>
        </gmd:CI_ResponsibleParty>
       </gmd:citedResponsibleParty>
       <gmd:citedResponsibleParty>
        <gmd:CI_ResponsibleParty>
         <gmd:organisationName>
          <gco:CharacterString>The Holocene</gco:CharacterString>
         </gmd:organisationName>
         <gmd:role>
          <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
         </gmd:role>
        </gmd:CI_ResponsibleParty>
       </gmd:citedResponsibleParty>
       <gmd:citedResponsibleParty>
        <gmd:CI_ResponsibleParty>
         <gmd:organisationName gco:nilReason="missing"></gmd:organisationName>
         <gmd:contactInfo>
          <gmd:CI_Contact>
           <gmd:onlineResource>
            <gmd:CI_OnlineResource>
             <gmd:linkage>
              <gmd:URL>https://doi.org/10.1177/0959683613516815</gmd:URL>
             </gmd:linkage>
             <gmd:protocol>
              <gco:CharacterString>HTTPS</gco:CharacterString>
             </gmd:protocol>
             <gmd:applicationProfile>
              <gco:CharacterString>Web Browser</gco:CharacterString>
             </gmd:applicationProfile>
             <gmd:name>
              <gco:CharacterString>Associated Reference published 2014</gco:CharacterString>
             </gmd:name>
             <gmd:description>
              <gco:CharacterString>Gregory C. Wiles, Rosanne D. D&apos;Arrigo, David Barclay, Rob S. Wilson, Stephanie K. Jarvis, Lauren Vargo, and David Frank, 2014: Surface air temperature variability reconstructed with tree rings for the Gulf of Alaska over the past 1200 years. The Holocene, 24, 198-208, 10.1177/0959683613516815</gco:CharacterString>
             </gmd:description>
             <gmd:function>
              <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
             </gmd:function>
            </gmd:CI_OnlineResource>
           </gmd:onlineResource>
          </gmd:CI_Contact>
         </gmd:contactInfo>
         <gmd:role gco:nilReason="missing"></gmd:role>
        </gmd:CI_ResponsibleParty>
       </gmd:citedResponsibleParty>
      </gmd:CI_Citation>
     </gmd:aggregateDataSetName>
     <gmd:associationType>
      <gmd:DS_AssociationTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_AssociationTypeCode" codeListValue="crossReference">crossReference</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="sciencePaper">sciencePaper</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>geoscientificInformation</gmd:MD_TopicCategoryCode>
   </gmd:topicCategory>
   <gmd:extent>
    <gmd:EX_Extent id="boundingExtent">
     <gmd:description>
      <gco:CharacterString>Date Range: 1552 AD to 2010 AD; Date Range: 398 cal yr BP to -60 cal yr BP; </gco:CharacterString>
     </gmd:description>
     <gmd:geographicElement>
      <gmd:EX_GeographicBoundingBox id="boundingGeographicBoundingBox">
       <gmd:westBoundLongitude>
        <gco:Decimal>-135.98</gco:Decimal>
       </gmd:westBoundLongitude>
       <gmd:eastBoundLongitude>
        <gco:Decimal>-135.98</gco:Decimal>
       </gmd:eastBoundLongitude>
       <gmd:southBoundLatitude>
        <gco:Decimal>58.74</gco:Decimal>
       </gmd:southBoundLatitude>
       <gmd:northBoundLatitude>
        <gco:Decimal>58.74</gco:Decimal>
       </gmd:northBoundLatitude>
      </gmd:EX_GeographicBoundingBox>
     </gmd:geographicElement>
     <gmd:geographicElement>
      <gmd:EX_BoundingPolygon id="boundingGeographicPolygon">
       <gmd:polygon>
        <gml:Point gml:id="stationLocation" srsName="urn:ogc:def:crs:EPSG::4326" uomLabels="deg deg" axisLabels="Latitude Longitude">
         <gml:description>Study Coordinates</gml:description>
         <gml:pos>58.74 -135.98</gml:pos>
        </gml:Point>
       </gmd:polygon>
      </gmd:EX_BoundingPolygon>
     </gmd:geographicElement>
     <gmd:temporalElement>
      <gmd:EX_TemporalExtent id="boundingTemporalExtent">
       <gmd:extent>
        <gml:TimePeriod gml:id="K1">
         <gml:beginPosition>1552</gml:beginPosition>
         <gml:endPosition>2010</gml:endPosition>
        </gml:TimePeriod>
       </gmd:extent>
      </gmd:EX_TemporalExtent>
     </gmd:temporalElement>
    </gmd:EX_Extent>
   </gmd:extent>
   <gmd:supplementalInformation>
    <gco:CharacterString>STUDY NOTES: Mountain Hemlock site along the southern ridge to Mount Wright NOAA Template Raw Measurements file added 2019-02-08. 
ABSTRACT SUPPLIED BY ORIGINATOR: A 1200-year-long tree-ring width record from living and subfossil mountain hemlock wood is used to reconstruct February through August temperatures for the Gulf of Alaska, providing a record of past climate variability for the Northeast Pacific sector that captures interannual to centennial timescales. The moderate elevation at the tree-ring sites has allowed these trees to retain their temperature signal without evidence of the so-called divergence effect, or underestimation of tree-ring inferred temperature trends, which is observed at many northern latitude forest locations. This &apos;divergence-free&apos; reconstruction reveals centennial trends that include a warm interval centered on ad 950 for coastal Alaska that occurs around the time of the &apos;Medieval Warm Period&apos;, a warming that is only rivaled by recent decades. Spectral analysis of this reconstruction supports the centennial pacing identified as a 170-220-year cadence consistent with solar variability. On the decadal to bidecadal scale, the reconstruction reveals ~10- and 18-year cycles, which have been observed elsewhere in climate records for western North America and are linked to solar and lunar tidal forcing, respectively. Temperature minima that occur at ad 969-970 and 1698-1700 correspond with the timing of major volcanic events. This tree-ring reconstruction supports centennial modes of solar forcing as a driver of surface air temperatures in the Gulf of Alaska, with lunar tidal, solar variability, internal variability, and volcanism, impacting climate on annual to decadal timescales.</gco:CharacterString>
   </gmd:supplementalInformation>
  </gmd:MD_DataIdentification>
 </gmd:identificationInfo>
 <gmd:distributionInfo>
  <gmd:MD_Distribution>
   <gmd:distributor>
    <gmd:MD_Distributor>
     <gmd:distributorContact>
      <gmd:CI_ResponsibleParty>
       <gmd:organisationName>
        <gco:CharacterString>DOC/NOAA/NESDIS/NCEI &gt; National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce</gco:CharacterString>
       </gmd:organisationName>
       <gmd:positionName>
        <gco:CharacterString>Customer Engagement Branch</gco:CharacterString>
       </gmd:positionName>
       <gmd:contactInfo>
        <gmd:CI_Contact>
         <gmd:phone>
          <gmd:CI_Telephone>
           <gmd:voice>
            <gco:CharacterString>1-828-271-4800</gco:CharacterString>
           </gmd:voice>
           <gmd:facsimile>
            <gco:CharacterString>1-828-271-4876</gco:CharacterString>
           </gmd:facsimile>
          </gmd:CI_Telephone>
         </gmd:phone>
         <gmd:address>
          <gmd:CI_Address>
           <gmd:deliveryPoint>
            <gco:CharacterString>151 Patton Avenue</gco:CharacterString>
           </gmd:deliveryPoint>
           <gmd:deliveryPoint>
            <gco:CharacterString>Veach-Baley Federal Building, Room 468</gco:CharacterString>
           </gmd:deliveryPoint>
           <gmd:city>
            <gco:CharacterString>Asheville</gco:CharacterString>
           </gmd:city>
           <gmd:administrativeArea>
            <gco:CharacterString>NC</gco:CharacterString>
           </gmd:administrativeArea>
           <gmd:postalCode>
            <gco:CharacterString>28801-5001</gco:CharacterString>
           </gmd:postalCode>
           <gmd:country>
            <gco:CharacterString>USA</gco:CharacterString>
           </gmd:country>
           <gmd:electronicMailAddress>
            <gco:CharacterString>ncei.orders@noaa.gov</gco:CharacterString>
           </gmd:electronicMailAddress>
          </gmd:CI_Address>
         </gmd:address>
         <gmd:onlineResource>
          <gmd:CI_OnlineResource>
           <gmd:linkage>
            <gmd:URL>https://www.ncei.noaa.gov</gmd:URL>
           </gmd:linkage>
           <gmd:protocol>
            <gco:CharacterString>HTTPS</gco:CharacterString>
           </gmd:protocol>
           <gmd:applicationProfile>
            <gco:CharacterString>Web Browser</gco:CharacterString>
           </gmd:applicationProfile>
           <gmd:name>
            <gco:CharacterString>NOAA National Centers for Environmental Information (NCEI)</gco:CharacterString>
           </gmd:name>
           <gmd:description>
            <gco:CharacterString>NCEI home page with information, data access and contact information.</gco:CharacterString>
           </gmd:description>
           <gmd:function>
            <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
           </gmd:function>
          </gmd:CI_OnlineResource>
         </gmd:onlineResource>
         <gmd:hoursOfService>
          <gco:CharacterString>8:00 - 6:00 Eastern</gco:CharacterString>
         </gmd:hoursOfService>
        </gmd:CI_Contact>
       </gmd:contactInfo>
       <gmd:role>
        <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="distributor">distributor</gmd:CI_RoleCode>
       </gmd:role>
      </gmd:CI_ResponsibleParty>
     </gmd:distributorContact>
     <gmd:distributionOrderProcess>
      <gmd:MD_StandardOrderProcess>
       <gmd:fees>
        <gco:CharacterString>In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media.</gco:CharacterString>
       </gmd:fees>
      </gmd:MD_StandardOrderProcess>
     </gmd:distributionOrderProcess>
     <gmd:distributorFormat>
      <gmd:MD_Format>
       <gmd:name>
        <gco:CharacterString>Native Format(s)</gco:CharacterString>
       </gmd:name>
       <gmd:version gco:nilReason="missing"></gmd:version>
      </gmd:MD_Format>
     </gmd:distributorFormat>
     <gmd:distributorTransferOptions>
      <gmd:MD_DigitalTransferOptions>
       <gmd:onLine>
        <gmd:CI_OnlineResource>
         <gmd:linkage>
          <gmd:URL>https://doi.org/10.25921/xwfv-gf55</gmd:URL>
         </gmd:linkage>
         <gmd:protocol>
          <gco:CharacterString>HTTPS</gco:CharacterString>
         </gmd:protocol>
         <gmd:applicationProfile>
          <gco:CharacterString>Landing Page</gco:CharacterString>
         </gmd:applicationProfile>
         <gmd:name>
          <gco:CharacterString>NCEI landing page for this dataset</gco:CharacterString>
         </gmd:name>
         <gmd:description>
          <gco:CharacterString>Dataset landing page with general information and links to access the data.</gco:CharacterString>
         </gmd:description>
         <gmd:function>
          <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
         </gmd:function>
        </gmd:CI_OnlineResource>
       </gmd:onLine>
       <gmd:onLine>
        <gmd:CI_OnlineResource>
         <gmd:linkage>
          <gmd:URL>https://www.ncdc.noaa.gov/paleo/study/19843</gmd:URL>
         </gmd:linkage>
         <gmd:protocol>
          <gco:CharacterString>HTTPS</gco:CharacterString>
         </gmd:protocol>
         <gmd:applicationProfile>
          <gco:CharacterString>Web Browser</gco:CharacterString>
         </gmd:applicationProfile>
         <gmd:name>
          <gco:CharacterString>NCEI Study Page</gco:CharacterString>
         </gmd:name>
         <gmd:description>
          <gco:CharacterString>Study page with dataset access information.</gco:CharacterString>
         </gmd:description>
         <gmd:function>
          <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="search">search</gmd:CI_OnLineFunctionCode>
         </gmd:function>
        </gmd:CI_OnlineResource>
       </gmd:onLine>
       <gmd:onLine>
        <gmd:CI_OnlineResource>
         <gmd:linkage>
          <gmd:URL>https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/tree-ring</gmd:URL>
         </gmd:linkage>
         <gmd:protocol>
          <gco:CharacterString>HTTPS</gco:CharacterString>
         </gmd:protocol>
         <gmd:applicationProfile>
          <gco:CharacterString>Information</gco:CharacterString>
         </gmd:applicationProfile>
         <gmd:name>
          <gco:CharacterString>NCEI Tree Ring Page</gco:CharacterString>
         </gmd:name>
         <gmd:description>
          <gco:CharacterString>General information for this data type.</gco:CharacterString>
         </gmd:description>
         <gmd:function>
          <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
         </gmd:function>
        </gmd:CI_OnlineResource>
       </gmd:onLine>
       <gmd:onLine>
        <gmd:CI_OnlineResource>
         <gmd:linkage>
          <gmd:URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak150.rwl</gmd:URL>
         </gmd:linkage>
         <gmd:protocol>
          <gco:CharacterString>HTTPS</gco:CharacterString>
         </gmd:protocol>
         <gmd:applicationProfile>
          <gco:CharacterString>Download</gco:CharacterString>
         </gmd:applicationProfile>
         <gmd:name>
          <gco:CharacterString>/treering/measurements/northamerica/usa/ak150.rwl</gco:CharacterString>
         </gmd:name>
         <gmd:description>
          <gco:CharacterString>Raw Measurements</gco:CharacterString>
         </gmd:description>
         <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:onLine>
        <gmd:CI_OnlineResource>
         <gmd:linkage>
          <gmd:URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak150-noaa.rwl</gmd:URL>
         </gmd:linkage>
         <gmd:protocol>
          <gco:CharacterString>HTTPS</gco:CharacterString>
         </gmd:protocol>
         <gmd:applicationProfile>
          <gco:CharacterString>Download</gco:CharacterString>
         </gmd:applicationProfile>
         <gmd:name>
          <gco:CharacterString>/treering/measurements/northamerica/usa/ak150-noaa.rwl</gco:CharacterString>
         </gmd:name>
         <gmd:description>
          <gco:CharacterString>Raw Measurements</gco:CharacterString>
         </gmd:description>
         <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:onLine>
        <gmd:CI_OnlineResource>
         <gmd:linkage>
          <gmd:URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/ak150.txt</gmd:URL>
         </gmd:linkage>
         <gmd:protocol>
          <gco:CharacterString>HTTPS</gco:CharacterString>
         </gmd:protocol>
         <gmd:applicationProfile>
          <gco:CharacterString>Download</gco:CharacterString>
         </gmd:applicationProfile>
         <gmd:name>
          <gco:CharacterString>/treering/measurements/correlation-stats/ak150.txt</gco:CharacterString>
         </gmd:name>
         <gmd:description>
          <gco:CharacterString>Correlation</gco:CharacterString>
         </gmd:description>
         <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:distributorTransferOptions>
    </gmd:MD_Distributor>
   </gmd:distributor>
  </gmd:MD_Distribution>
 </gmd:distributionInfo>
 <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>This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25</gco:CharacterString>
   </gmd:maintenanceNote>
  </gmd:MD_MaintenanceInformation>
 </gmd:metadataMaintenance>
</gmi:MI_Metadata>