<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-lake-6052</Entry_ID>
  <Entry_Title>Laguna Potrok Aike, Argentina 1,600 Year Lake Level Proxy Data</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Haberzettl, T.; Ohlendorf, C.; Zolitschka, B.</Dataset_Creator>
    <Dataset_Title>Laguna Potrok Aike, Argentina 1,600 Year Lake Level Proxy Data</Dataset_Title>
    <Dataset_Release_Date>2007-12-01</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/6052</Online_Resource>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>T.</First_Name>
    <Last_Name>Haberzettl</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>C.</First_Name>
    <Last_Name>Ohlendorf</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>B.</First_Name>
    <Last_Name>Zolitschka</Last_Name>
  </Personnel>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>copper,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>strontium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>depth,null,null,centimeter,null,paleolimnology,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>nitrogen,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>sulfur,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>inorganic carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>iron/manganese,sediment,null,dimensionless,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>biogenic silica,sediment,null,percent,null,paleolimnology,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>titanium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>iron,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>calcium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>water content,sediment,null,percent,null,paleolimnology,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>density,wet sediment,null,gram per cubic centimeter,null,paleolimnology,null,gamma ray attenuation porosity evaluation,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>carbon/nitrogen,sediment,null,dimensionless,null,paleolimnology,null,elemental analysis,N,total organic carbon/total nitrogen</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>potassium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>density,dry sediment,null,gram per cubic centimeter,null,paleolimnology,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>volume magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleolimnology,null,null,N,x10-6 units</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>magnetic susceptibility,sediment,null,percent,null,paleolimnology,null,null,N,frequency-dependent magnetic susceptibility</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>organic carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>manganese,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>age,null,null,calendar year before present,null,paleolimnology,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Variable_Level_1>geochemistry</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
  <Keyword>PAGES 2k Network</Keyword>
  <Keyword>PAGES LOTRED SA2k</Keyword>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>1550 cal yr BP</Paleo_Start_Date>
    <Paleo_Stop_Date>-50 cal yr BP</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>Complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>-51.95</Southernmost_Latitude>
    <Northernmost_Latitude>-51.95</Northernmost_Latitude>
    <Westernmost_Longitude>-70.3833</Westernmost_Longitude>
    <Easternmost_Longitude>-70.3833</Easternmost_Longitude>
    <Minimum_Altitude>113</Minimum_Altitude>
    <Maximum_Altitude>113</Maximum_Altitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>Continent</Location_Category>
    <Location_Type>South America</Location_Type>
    <Location_Subregion1>Argentina</Location_Subregion1>
    <Detailed_Location>Laguna Potrok Aike&gt;LATITUDE -51.95&gt;LONGITUDE -70.3833</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>
    <Author>Torsten Haberzettl, Michael Fey, Andreas Lücke, Nora Maidana, Christoph Mayr, Christian Ohlendorf, Frank Schäbitz, Gerhard H. Schleser, Michael Wille, Bernd Zolitschka </Author>
    <Publication_Date>2005</Publication_Date>
    <Title>Climatically induced lake level changes during the last two millennia as reflected in sediments of Laguna Potrok Aike, southern Patagonia (Santa Cruz, Argentina)</Title>
    <Series>Journal of Paleolimnology</Series>
    <Volume>33</Volume>
    <Issue>3</Issue>
    <Pages>283-302</Pages>
    <DOI>10.1007/s10933-004-5331-z</DOI>
    <Online_Resource>http://link.springer.com/article/10.1007/s10933-004-5331-z</Online_Resource>
  </Reference>
  <Summary>
    <Abstract>The volcanogenic lake Laguna Potrok Aike, Santa Cruz, Argentina, reveals an unprecedented continuous high resolution climatic record for the steppe regions of southern Patagonia. With the applied multi-proxy approach rapid climatic changes before the turn of the first millennium were detected followed by medieval droughts which are intersected by moist and/or cold periods of varying durations and intensities. The &apos;total inorganic carbon&apos; content was identified as a sensitive lake level indicator. This proxy suggests that during the late Middle Ages (ca. AD 1230-1410) the lake level was rather low representing a signal of the &apos;Medieval Climate Anomaly&apos; in southeastern Patagonia. At the beginning of the &apos;Little Ice Age&apos; the lake level rose considerably staying on a high level during the whole period. Subsequently, the lake level lowered again in the course of the 20th century. 
          STUDY NOTES: Physical properties and geochemistry data of Laguna Potrok Aike (southern Patagonia) are given on depth scale and on time scale (calibrated radiocarbon years).  This data set, based on a 1m gravity core, includes the last ca. 1600 years.</Abstract>
  </Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/argentina/potrok2005.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/paleolimnology/southamerica/argentina/potrok2005.xls</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>
