<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-10394</Entry_ID>
  <Entry_Title>Central Europe 2500 Year Tree Ring Summer Climate Reconstructions </Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Büntgen, U.; Tegel, W.; Nicolussi, K.; McCormick, M.; Frank, D.C.; Trouet, V.; Kaplan, J.O.; Herzig, F.; Heussner, K.-U.; Wanner, H.; Luterbacher, J.; Esper, J.</Dataset_Creator>
    <Dataset_Title>Central Europe 2500 Year Tree Ring Summer Climate Reconstructions </Dataset_Title>
    <Dataset_Release_Date>2011-02-28</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/10394</Online_Resource>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>U.</First_Name>
    <Last_Name>Büntgen</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>W.</First_Name>
    <Last_Name>Tegel</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>K.</First_Name>
    <Last_Name>Nicolussi</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>M.</First_Name>
    <Last_Name>McCormick</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>D.C.</First_Name>
    <Last_Name>Frank</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>V.</First_Name>
    <Last_Name>Trouet</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>J.O.</First_Name>
    <Last_Name>Kaplan</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>F.</First_Name>
    <Last_Name>Herzig</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>K.-U.</First_Name>
    <Last_Name>Heussner</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>H.</First_Name>
    <Last_Name>Wanner</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>J.</First_Name>
    <Last_Name>Luterbacher</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>J.</First_Name>
    <Last_Name>Esper</Last_Name>
  </Personnel>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>precipitation,ring width,null,millimeter,Jun-Sep,climate reconstructions|tree ring,null,composite plus scale,N,calibration data set: CRU TS 2.4</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>surface temperature,ring width,null,degree Celsius,Jun-Aug,climate reconstructions|tree ring,anomalized,composite plus scale,N,reference period: 1901-2000 A.D.; calibration data set: local instrumental data</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>surface temperature,ring width,one root mean square error lower bound,degree Celsius,Jun-Aug,climate reconstructions|tree ring,anomalized,composite plus scale,N,reference period: 1901-2000 A.D.; calibration data set: local instrumental data</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>precipitation,ring width,one root mean square error lower bound,millimeter,Apr-Jun,climate reconstructions|tree ring,null,composite plus scale,N,calibration data set: CRU TS 2.2</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>precipitation,ring width,one root mean square error upper bound,millimeter,Apr-Jun,climate reconstructions|tree ring,null,composite plus scale,N,calibration data set: CRU TS 2.3</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>surface temperature,ring width,one root mean square error upper bound,degree Celsius,Jun-Aug,climate reconstructions|tree ring,anomalized,composite plus scale,N,reference period: 1901-2000 A.D.; calibration data set: local instrumental data</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>precipitation,ring width,null,millimeter,Apr-Jun,climate reconstructions|tree ring,null,composite plus scale,N,calibration data set: CRU TS 2.1</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|tree ring</Term>
    <Detailed_Variable>surface temperature,ring density,null,degree Celsius,Jun-Sep,climate reconstructions|tree ring,anomalized,composite plus scale,N,based on latewood density; reference period: 1901-2000 A.D.; calibration data set: local instrumental data</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>reconstructions</Term>
    <Variable_Level_1>precipitation</Variable_Level_1>
  </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>Air Temperature Reconstruction</Keyword>
  <Keyword>Little Ice Age (LIA)</Keyword>
  <Keyword>Medieval Warm Period</Keyword>
  <Keyword>Precipitation Reconstruction</Keyword>
  <Keyword>drought</Keyword>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>-500 AD</Paleo_Start_Date>
    <Paleo_Stop_Date>2008 AD</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>2450 cal yr BP</Paleo_Start_Date>
    <Paleo_Stop_Date>-58 cal yr BP</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>Complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>45</Southernmost_Latitude>
    <Northernmost_Latitude>53</Northernmost_Latitude>
    <Westernmost_Longitude>6</Westernmost_Longitude>
    <Easternmost_Longitude>20</Easternmost_Longitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>Continent</Location_Category>
    <Location_Type>Europe</Location_Type>
    <Detailed_Location>Central Europe&gt;LATITUDE 49&gt;LONGITUDE 13</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>Büntgen, U., W. Tegel, K. Nicolussi, M. McCormick, D. Frank, 
V. Trouet, J.O. Kaplan, F. Herzig, K.-U. Heussner, H. Wanner, 
J. Luterbacher, and J. Esper. 2011. 
2500 Years of European Climate Variability and Human Susceptibility. 
Science, Vol. 331, pp. 578-583, 4 February 2011. 
DOI: 10.1126/science.1197175 
</Reference>
  <Summary>
    <Abstract>Climate variations influenced the agricultural productivity, 
health risk, and conflict level of preindustrial societies. 
Discrimination between environmental and anthropogenic impacts 
on past civilizations, however, remains difficult because of 
the paucity of high-resolution paleoclimatic evidence. 
We present tree ring–based reconstructions of central European 
summer precipitation and temperature variability over the past 
2500 years. Recent warming is unprecedented, but modern 
hydroclimatic variations may have at times been exceeded 
in magnitude and duration. Wet and warm summers occurred 
during periods of Roman and medieval prosperity. Increased 
climate variability from ~250 to 600 C.E. coincided with 
the demise of the western Roman Empire and the turmoil of 
the Migration Period. Such historical data may provide a basis 
for counteracting the recent political and fiscal reluctance 
to mitigate projected climate change. 
 
          STUDY NOTES: Tree ring-based reconstructions of central European summer 
precipitation and temperature over the past 2500 years.
Precipitation is reconstructed for April-May-June, 
and temperature anomalies for June-July-August.  
</Abstract>
  </Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/buentgen2011europe.xls</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/reconstructions/europe/buentgen2011europe.txt</URL>
  </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>
