<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-10429</Entry_ID>
  <Entry_Title>Stockholm Winter/Spring 500 Year Temperature Reconstruction</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Leijonhufvud, L.; Wilson, R.J.S.; Moberg, A.; Söderberg, J.; Retsö, D.; Söderlind, U.</Dataset_Creator>
    <Dataset_Title>Stockholm Winter/Spring 500 Year Temperature Reconstruction</Dataset_Title>
    <Dataset_Release_Date>2010-05-13</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/10429</Online_Resource>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>L.</First_Name>
    <Last_Name>Leijonhufvud</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>R.J.S.</First_Name>
    <Last_Name>Wilson</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>A.</First_Name>
    <Last_Name>Moberg</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>J.</First_Name>
    <Last_Name>Söderberg</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>D.</First_Name>
    <Last_Name>Retsö</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>U.</First_Name>
    <Last_Name>Söderlind</Last_Name>
  </Personnel>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|historical</Term>
    <Detailed_Variable>temperature,null,null,degree Celsius,Jan-Apr,climate reconstructions|historical,normalized,null,N,scaled to have same mean and standard deviation as instrumental; Post 1893 is represented by instrumental data</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|historical</Term>
    <Detailed_Variable>temperature,null,null,degree Celsius,Jan-Apr,climate reconstructions|historical,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>historical</Term>
    <Detailed_Variable>temperature,null,null,dimensionless,Jan-Apr,historical,null,null,N,from a variety of documentary evidence related to shipping activity</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|historical</Term>
    <Detailed_Variable>temperature,null,null,degree Celsius,Jan-Apr,climate reconstructions|historical,normalized,null,N,scaled to have same mean and standard deviation as instrumental; Post 1756 is represented by instrumental data</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|historical</Term>
    <Detailed_Variable>temperature,null,two standard deviations,degree Celsius,Jan-Apr,climate reconstructions|historical,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>instrumental</Term>
    <Detailed_Variable>temperature,null,null,degree Celsius,Jan-Apr,instrumental,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|historical</Term>
    <Detailed_Variable>age,null,null,year Common Era,null,climate reconstructions|historical,null,null,N,null</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>Air Temperature Reconstruction</Keyword>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>1502 AD</Paleo_Start_Date>
    <Paleo_Stop_Date>2008 AD</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>448 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>59.15</Southernmost_Latitude>
    <Northernmost_Latitude>59.15</Northernmost_Latitude>
    <Westernmost_Longitude>18</Westernmost_Longitude>
    <Easternmost_Longitude>18</Easternmost_Longitude>
    <Minimum_Altitude>75</Minimum_Altitude>
    <Maximum_Altitude>75</Maximum_Altitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>Continent</Location_Category>
    <Location_Type>Europe</Location_Type>
    <Location_Subregion1>Northern Europe</Location_Subregion1>
    <Location_Subregion2>Scandanavia</Location_Subregion2>
    <Location_Subregion3>Sweden</Location_Subregion3>
    <Detailed_Location>Stockholm&gt;LATITUDE 59.15&gt;LONGITUDE 18</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>Leijonhufvud, L., R. Wilson, A. Moberg, J. Söderberg, D. Retsö, 
and U. Söderlind.  2010.  
Five centuries of Stockholm winter/spring temperatures reconstructed 
from documentary evidence and instrumental observations. 
Climatic Change, Published online 28 August 2009. 
DOI 10.1007/s10584-009-9650-y
</Reference>
  <Summary>
    <Abstract>Historical documentary sources, reflecting different port activities 
in Stockholm, are utilised to derive a 500-year winter/spring 
temperature reconstruction for the region. These documentary sources 
reflect sea ice conditions in the harbour inlet and those series that 
overlap with the instrumental data correlate well with winter/spring 
temperatures. By refining dendroclimatological methods, the time-series 
were composited to a mean series and calibrated (1756–1841; r2 = 66%) 
against Stockholm January-April temperatures. Strong verification 
was confirmed (1842-1892; r2 = 60%; RE/CE = 0.55). By including the 
instrumental data, the quantified (QUAN) reconstruction indicates that 
recent two decades have been the warmest period for the last 500 years. 
Coldest conditions occurred during the 16th/17th and early 19th centuries. 
An independent qualitative (QUAL) historical index was also derived 
for the Stockholm region. Comparison between QUAN and QUAL shows good 
coherence at inter-annual time-scales, but QUAL distinctly appears to 
lack low frequency information. Comparison is also made to other winter 
temperature based annually resolved records for the Baltic region. 
Between proxy coherence is generally good although it decreases going 
back in time with the 1500-1550 period being the weakest period - 
possibly reflecting data quality issues in the different reconstructions. 
 
          STUDY NOTES: Reconstruction of winter and early spring (January-April) temperatures 
for Stockholm, Sweden, based on documentary evidence of shipping activity.  
Documentary sources are used to determine the date when the sailing 
season started each year. The sailing season in spring is related to 
the ice cover of the Baltic, which is, in turn, closely related to the 
annual mean winter air temperature.  Dates are transformed into days 
after New Year according to the Gregorian calendar for 1500 AD onwards, 
and then used to reconstruct Stockholm winter/spring temperatures.  

</Abstract>
  </Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/historical/europe/stockholm2010temperature.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/historical/europe/stockholm2010temperature.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>
