<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-ocean-2603</Entry_ID>
  <Entry_Title>Eastern Tropical Atlantic Alkenones and Sea Surface Temperatures </Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Zhao, M.; Beveridge, N.A.S.; Shackleton, N.J.; Sarnthein, M.; Eglinton, G.</Dataset_Creator>
    <Dataset_Title>Eastern Tropical Atlantic Alkenones and Sea Surface Temperatures </Dataset_Title>
    <Dataset_Release_Date>1995-07-01</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/2603</Online_Resource>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>M.</First_Name>
    <Last_Name>Zhao</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>N.A.S.</First_Name>
    <Last_Name>Beveridge</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>N.J.</First_Name>
    <Last_Name>Shackleton</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>M.</First_Name>
    <Last_Name>Sarnthein</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>G.</First_Name>
    <Last_Name>Eglinton</Last_Name>
  </Personnel>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoceanography</Term>
    <Detailed_Variable>C37 alkenone,null,null,microgram per gram,null,paleoceanography,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoceanography</Term>
    <Detailed_Variable>age,null,null,calendar year before present,null,paleoceanography,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoceanography</Term>
    <Detailed_Variable>age,null,null,radiocarbon year before present,null,paleoceanography,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>climate reconstructions|paleoceanography</Term>
    <Detailed_Variable>sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoceanography</Term>
    <Detailed_Variable>alkenone unsaturation index Uk37 prime,null,null,dimensionless,null,paleoceanography,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleoceanography</Term>
    <Detailed_Variable>depth,null,null,centimeter,null,paleoceanography,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleocean</Term>
    <Variable_Level_1>biomarkers</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleocean</Term>
    <Variable_Level_1>reconstruction</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleocean</Term>
    <Variable_Level_1>age control</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>83906 14C yr BP</Paleo_Start_Date>
    <Paleo_Stop_Date>46 14C yr BP</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>83906 cal yr BP</Paleo_Start_Date>
    <Paleo_Stop_Date>0 cal yr BP</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>Complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>19</Southernmost_Latitude>
    <Northernmost_Latitude>20.75</Northernmost_Latitude>
    <Westernmost_Longitude>-20.17</Westernmost_Longitude>
    <Easternmost_Longitude>-18.58</Easternmost_Longitude>
    <Minimum_Altitude>-3300</Minimum_Altitude>
    <Maximum_Altitude>-2263</Maximum_Altitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>Ocean</Location_Category>
    <Location_Type>Atlantic Ocean</Location_Type>
    <Location_Subregion1>North Atlantic Ocean</Location_Subregion1>
    <Detailed_Location>ODP658C&gt;LATITUDE 20.75&gt;LONGITUDE -18.58</Detailed_Location>
  </Location>
  <Location>
    <Location_Category>Ocean</Location_Category>
    <Location_Type>Atlantic Ocean</Location_Type>
    <Location_Subregion1>North Atlantic Ocean</Location_Subregion1>
    <Detailed_Location>BOFS-31K&gt;LATITUDE 19&gt;LONGITUDE -20.17</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>Zhao, M., N.A.S. Beveridge, N.J. Shackleton, M. Sarnthein, and G. Eglinton. 1995. Molecular stratigraphy of cores off northwest Africa: Sea surface temperature history over the last 80 ka. Paleoceanography 10(3):661-675.</Reference>
  <Summary>
    <Abstract>The molecular stratigraphy of BOFS core 31K and ODP Hole 658C has been studied for C37 alkenone abundances over the past 80 kaat high resolution (~circa 200-500 years).  The derived Uk37 sea surface temperature record for both cores shows a range of temperatures from about 18C during the last glacial to 21.5C during the early Holocene.  Both records also reveal changes in SST as much as 2C - 4C over a few hundred years, which correlate well with similar abrupt climatic changes observed in cores from elsewhere in the NE Atlantic, associated with &quot;&quot;Heinrich events&quot;&quot;. Our results indicate that meltwater produced by these ice-rafting events was transmitted southward by the Canary Current, where it had considerable impact on SSTs in the subtropical eastern Atlantic.</Abstract>
  </Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp658cz-tab.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/paleocean/sediment_files/complete/bofs-31k-tab.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/contributions_by_author/zhao1995</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>
