<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-recon-13341</Entry_ID>
  <Entry_Title>PR-Challenge Pseudo-Proxy and Pseudo-Instrumental Data</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Graham, N.E.; Anchukaitis, K.J.</Dataset_Creator>
    <Dataset_Title>PR-Challenge Pseudo-Proxy and Pseudo-Instrumental Data</Dataset_Title>
    <Dataset_Release_Date>2011-03-01</Dataset_Release_Date>
    <Dataset_Publisher>NCDC-Paleoclimatology</Dataset_Publisher>
    <Data_Presentation_Form>ONLINE Files</Data_Presentation_Form>
    <Dataset_DOI>Pending</Dataset_DOI>
    <Online_Resource>https://www.ncdc.noaa.gov/paleo/study/13341</Online_Resource>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>N.E.</First_Name>
    <Last_Name>Graham</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>K.J.</First_Name>
    <Last_Name>Anchukaitis</Last_Name>
  </Personnel>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoclimatic modeling</Term>
    <Detailed_Variable>latitude,null,null,degree north,null,paleoclimatic modeling,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoclimatic modeling</Term>
    <Detailed_Variable>age,null,null,year Common Era,null,paleoclimatic modeling,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoclimatic modeling</Term>
    <Detailed_Variable>surface air temperature,null,null,degree Celsius,annual,paleoclimatic modeling,null,null,N,modeled northern hemisphere mean</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoclimatic modeling</Term>
    <Detailed_Variable>tree ring standardized growth index,null,null,standard deviation unit,annual,paleoclimatic modeling,null,null,N,pseudoproxy</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoclimatic modeling</Term>
    <Detailed_Variable>longitude,null,null,degree east,null,paleoclimatic modeling,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoclimatic modeling</Term>
    <Detailed_Variable>surface air temperature,null,null,degree Celsius,monthly,paleoclimatic modeling,null,null,N,from model grid cells that represent nearest instrumental data</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoclimatic modeling</Term>
    <Detailed_Variable>tree ring standardized growth index,null,null,standard deviation unit,annual,paleoclimatic modeling,null,null,N,pseudoproxy using VSLite</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>reconstructions</Term>
    <Variable_Level_1>air temperature</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
  <Keyword>Annual Resolution (AR)</Keyword>
  <Keyword>temperature</Keyword>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>800 AD</Paleo_Start_Date>
    <Paleo_Stop_Date>2005 AD</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>1150 cal yr BP</Paleo_Start_Date>
    <Paleo_Stop_Date>-55 cal yr BP</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>Complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>-90</Southernmost_Latitude>
    <Northernmost_Latitude>90</Northernmost_Latitude>
    <Westernmost_Longitude>-180</Westernmost_Longitude>
    <Easternmost_Longitude>180</Easternmost_Longitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>Geographic Region</Location_Category>
    <Location_Type>Global</Location_Type>
    <Detailed_Location>Global&gt;LATITUDE &gt;LONGITUDE </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/>
  <Summary>
    <Abstract>The Paleoclimate Reconstruction (PR) Challenge provides a simulated proxy data framework for 
evaluating differing paleoclimate reconstruction methods during the last two millennia. 
The pseudo-proxy and pseudo-instrumental data sets produced for the PR Challenge are housed here 
so that scientists, students,and citizens interested in exploring paleoclimate reconstructions 
can continue to have access to this state-of-the-art set of simulations, which includes forward 
modeling of proxy properties driven by climate variables. The data can be downloaded from the 
DATA DOWNLOAD table above.</Abstract>
  </Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/pr-challenge/DArrigo/</URL>
    <Description>Data Folder; Theme 2 D&apos;Arrigo</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/pr-challenge/Esper1/</URL>
    <Description>Data Folder; Theme 1 Esper 1</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/pr-challenge/Esper2/</URL>
    <Description>Data Folder; Theme 1 Esper 2</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/pr-challenge/Mann/</URL>
    <Description>Data Folder; Theme 3 Mann</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>2018-12-11</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2018-12-11</Last_DIF_Revision_Date>
</DIF>
