<DIF xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.8.4.xsd">
  <Entry_ID>noaa-tree-13711</Entry_ID>
  <Entry_Title>Wiles - Excursion Ridge - CHNO - ITRDB AK118</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Wiles, G.; Mennett, C.R.; Jarvis, S.K.; D&apos;Arrigo, R.D.; Wiesenberg, N.; Lawson, D.E.</Dataset_Creator>
    <Dataset_Title>Wiles - Excursion Ridge - CHNO - ITRDB AK118</Dataset_Title>
    <Dataset_Release_Date>2012-07-16</Dataset_Release_Date>
    <Dataset_Publisher>NCDC-Paleoclimatology</Dataset_Publisher>
    <Data_Presentation_Form>ONLINE Files</Data_Presentation_Form>
    <Dataset_DOI>10.25921/gnss-jy51</Dataset_DOI>
    <Online_Resource>https://www.ncdc.noaa.gov/paleo/study/13711</Online_Resource>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>G.</First_Name>
    <Last_Name>Wiles</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>C.R.</First_Name>
    <Last_Name>Mennett</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>S.K.</First_Name>
    <Last_Name>Jarvis</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>R.D.</First_Name>
    <Last_Name>D&apos;Arrigo</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>N.</First_Name>
    <Last_Name>Wiesenberg</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>D.E.</First_Name>
    <Last_Name>Lawson</Last_Name>
  </Personnel>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL12S; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL23Sb; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL24SW; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL33NE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL36NWa; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL02a; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL04E; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL29NE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL33NW; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>tree ring standardized growth index,null,null,null,null,tree ring,composited,standard,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL11W; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL21N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL24NW; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL37SE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL03E*; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL21SE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL23Sa; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL25SW; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL26NW; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL34SW; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL36NWb; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR10N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR22N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR25NE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR38E; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR38W; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR42N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>number of samples,null,null,count,null,tree ring,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL06S; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL21NE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL26NE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL32NE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR26S; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR34NE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL06E; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL13N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL23E; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL34NW; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR22W; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>age,null,null,year Common Era,null,tree ring,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>tree ring standardized growth index,null,null,null,null,tree ring,composited,residual,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL03N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL04S; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL21E; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL32NW; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL99S; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR07N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR09N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR22E; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR23E; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>tree ring standardized growth index,null,null,null,null,tree ring,composited,ARSTAN,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL02b; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL11N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: CL25SE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR10E; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR12N; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree ring</Term>
    <Detailed_Variable>total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: XR13SE; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>tree-ring</Term>
    <Variable_Level_1>width</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
  <Keyword>CHNO</Keyword>
  <Keyword>Chamaecyparis nootkatensis (D. Don) Spach</Keyword>
  <Keyword>Alaska yellow-cedar</Keyword>
  <Keyword>Nootka cypress</Keyword>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>1566 AD</Paleo_Start_Date>
    <Paleo_Stop_Date>2009 AD</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>384 cal yr BP</Paleo_Start_Date>
    <Paleo_Stop_Date>-59 cal yr BP</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>Complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>58.444</Southernmost_Latitude>
    <Northernmost_Latitude>58.444</Northernmost_Latitude>
    <Westernmost_Longitude>-135.594</Westernmost_Longitude>
    <Easternmost_Longitude>-135.594</Easternmost_Longitude>
    <Minimum_Altitude>260</Minimum_Altitude>
    <Maximum_Altitude>260</Maximum_Altitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>Continent</Location_Category>
    <Location_Type>North America</Location_Type>
    <Location_Subregion1>United States Of America</Location_Subregion1>
    <Location_Subregion2>Alaska</Location_Subregion2>
    <Detailed_Location>Excursion Ridge&gt;LATITUDE 58.444&gt;LONGITUDE -135.594</Detailed_Location>
  </Location>
  <Access_Constraints>None</Access_Constraints>
  <Use_Constraints>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.</Use_Constraints>
  <Data_Set_Language>English</Data_Set_Language>
  <Data_Center>
    <Data_Center_Name>
      <Short_Name>DOC/NOAA/NESDIS/NCEI</Short_Name>
      <Long_Name>National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce </Long_Name>
    </Data_Center_Name>
    <Data_Center_URL>https://www.ncdc.noaa.gov/data-access/paleoclimatology-data</Data_Center_URL>
    <Personnel>
      <Role>DATA Center Contact</Role>
      <First_Name>Bruce</First_Name>
      <Last_Name>Bauer</Last_Name>
      <Email>bruce.a.bauer@noaa.gov</Email>
      <Email>paleo@noaa.gov</Email>
      <Phone>303-497-6280</Phone>
      <Fax>303-497-6513</Fax>
      <Contact_Address>
        <Address>325 Broadway, E/NE31</Address>
        <City>Boulder</City>
        <Province_or_State>CO</Province_or_State>
        <Postal_Code>80305-3328</Postal_Code>
        <Country>USA</Country>
      </Contact_Address>
    </Personnel>
  </Data_Center>
  <Distribution>
    <Distribution_Media>online</Distribution_Media>
    <Distribution_Format>ASCII</Distribution_Format>
  </Distribution>
  <Reference>Wiles, G.C., Mennett, C., Jarvis, S.K., Lawson, D. and D&apos;Arrigo, R, 2012.  
Decline in Alaskan Yellow-Cedar: tree-ring investigations into climatic 
responses and possible causes: Glacier Bay, Alaska 
Canadian Journal of Forest Research, 42: 1-6, 2012 
doi:10.1139/X2012-028</Reference>
  <Summary>
    <Abstract>Yellow-cedar (Callitropsis nootkatensis (D. Don) Orsted ex D.P. Little) is in a century-long decline coinciding with the end of the Little Ice Age (LIA). The leading hypothesis explaining this decline is a decrease in insulating snowpack due to warming and increased susceptibility to damaging frosts in the root zone. A ring-width series from yellow-cedar on Excursion Ridge (260 m a.s.l.) in Glacier Bay National Park and Preserve, Alaska, and another from trees on Pleasant Island (150 m a.s.l.) in the Tongass National Forest in Icy Strait were compared with regional monthly temperature and precipitation data from Sitka, Alaska, to investigate the changing growth response to temperature at these sites. Comparisons with monthly temperatures from 1832 to 1876 during the end of the Little Ice Age show that the high-elevation Excursion Ridge and the low-elevation Pleasant Island sites strongly favored warmer January through July temperatures. Both tree populations have markedly changed their response from a positive to a strong negative correlation with January through July temperatures since 1950. This strong negative response to warming by the yellow-cedar together with a positive relationship with total March and April precipitation suggests that these yellow-cedar sites may be susceptible to decline. Furthermore, these analyses are consistent with the hypothesis that the yellow-cedar decline is linked to decreased snowpack. 
          STUDY NOTES: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.</Abstract>
  </Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak118-noaa.rwl</URL>
    <Description>Raw Measurements - NOAA Template File; ak118-noaa.rwl</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/ak118.txt</URL>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ak118r.crn</URL>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ak118.crn</URL>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ak118.rwl</URL>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ak118-noaa.crn</URL>
    <Description>Chronology - NOAA Template File; ak118-noaa.crn</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ak118a-noaa.crn</URL>
    <Description>Chronology - NOAA Template File; ak118a-noaa.crn</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ak118a.crn</URL>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ak118r-noaa.crn</URL>
    <Description>Chronology - NOAA Template File; ak118r-noaa.crn</Description>
  </Related_URL>
  <IDN_Node>
    <Short_Name>USA/NOAA</Short_Name>
  </IDN_Node>
  <Metadata_Name>DIF</Metadata_Name>
  <Metadata_Version>Version 9.8.4</Metadata_Version>
  <DIF_Creation_Date>2019-02-13</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2019-02-13</Last_DIF_Revision_Date>
</DIF>
