<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-13177</Entry_ID>
  <Entry_Title>Lake Logung, Indonesia 1400 Year Multiproxy Sediment Data</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Rodysill, J.R.; Russell, J.M.; Bijaksana, S.; Brown, E.T.; Safiuddin, L.O.; Eggermont, H.</Dataset_Creator>
    <Dataset_Title>Lake Logung, Indonesia 1400 Year Multiproxy Sediment Data</Dataset_Title>
    <Dataset_Release_Date>2012-08-01</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/13177</Online_Resource>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>J.R.</First_Name>
    <Last_Name>Rodysill</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>J.M.</First_Name>
    <Last_Name>Russell</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>S.</First_Name>
    <Last_Name>Bijaksana</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>E.T.</First_Name>
    <Last_Name>Brown</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>L.O.</First_Name>
    <Last_Name>Safiuddin</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>H.</First_Name>
    <Last_Name>Eggermont</Last_Name>
  </Personnel>
  <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>volume magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleolimnology,null,magnetic susceptibility measurement with point or surface sensor,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>organic carbon,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>delta 13C,organic matter,null,per mil,null,paleolimnology,null,isotope ratio mass spectrometry,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>age,null,null,year Common Era,null,paleolimnology,null,null,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,null,N,total organic carbon/total nitrogen</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>biogenic silica,sediment,null,percent,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>inorganic carbon,sediment,null,percent,null,paleolimnology,null,carbon coulometry,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Detailed_Variable>delta 15N,organic matter,null,per mil,null,paleolimnology,null,isotope ratio mass spectrometry,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Variable_Level_1>carbon isotopes</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>paleolimnology</Term>
    <Variable_Level_1>physical properties</Variable_Level_1>
  </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>ENSO</Keyword>
  <Keyword>Warm Pool</Keyword>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>614 AD</Paleo_Start_Date>
    <Paleo_Stop_Date>2009 AD</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>1336 cal yr BP</Paleo_Start_Date>
    <Paleo_Stop_Date>-59 cal yr BP</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>Complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>-8.0418</Southernmost_Latitude>
    <Northernmost_Latitude>-8.0418</Northernmost_Latitude>
    <Westernmost_Longitude>113.3075</Westernmost_Longitude>
    <Easternmost_Longitude>113.3075</Easternmost_Longitude>
    <Minimum_Altitude>215</Minimum_Altitude>
    <Maximum_Altitude>215</Maximum_Altitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>Ocean</Location_Category>
    <Location_Type>Indian Ocean</Location_Type>
    <Location_Subregion1>Indonesia</Location_Subregion1>
    <Detailed_Location>Lake Logung&gt;LATITUDE -8.0418&gt;LONGITUDE 113.3075</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>Rodysill, J.R., J.M. Russell, S. Bijaksana, E.T. Brown, 
L.O. Safiuddin, and H. Eggermont. 2012. 
A paleolimnological record of rainfall and drought 
from East Java, Indonesia during the last 1,400 years. 
Journal of Paleolimnology, Vol. 47, No. 1, pp. 125-139. 
DOI: 10.1007/s10933-011-9564-3 </Reference>
  <Summary>
    <Abstract>Variations in the location and strength of convection in the Western 
Pacific Warm Pool (WPWP) have a profound impact on the distribution 
and amount of global rainfall. Much of the variability in WPWP 
convection is attributed to variations in the El Niño-Southern 
Oscillation, for which the long-term trends and forcing mechanisms 
remain poorly understood. Despite the importance of WPWP convection 
to global climate change, we have very few paleohydrological 
reconstructions from the region. Here we present a new paleolimnologic 
and paleohydrologic record spanning the past 1,400 years using a multi-
proxy dataset from Lake Logung, located in East Java, Indonesia that 
provides insights into centennial-scale trends in warm pool hydrology. 
Organic matter d13C data indicate that East Java became wetter over 
the last millennium until ca. 1800 Common Era (CE), consistent with 
evidence for the southward migration of the Intertropical Convergence 
Zone (ITCZ) during this time. Superimposed on this long-term trend 
are four decade- to century-scale droughts, inferred from organic 
matter d13C and calcite abundance data. They are centered at 1030, 
1550, 1830, and 1996 CE. The three more recent droughts correlate 
with hydrologic anomalies documented in other proxy records from 
the WPWP region on both sides of the equator, and the two most recent 
droughts correlate in time with historically documented periods of 
multiple, intense El Niño events. Thus, our record provides strong 
evidence that century-scale hydrologic variability in this region 
relates to changes in the Walker Circulation. Human activity within 
the lake catchment is apparent since 1860 CE. 
 
          STUDY NOTES: Multiproxy sediment data from Lake Logung, Indonesia, for the past 1400 years. 
Paleoenvironmental proxies measured include Magnetic Susceptibility, Organic 
and Inorganic Carbon , Total N, C:N ratio, C and N isotopes, and Biogenic Opal. 

Lake Logung, Indonesia: 8°2.509&apos;S, 113°18.452&apos;E, 215m elevation, 7m water depth. </Abstract>
  </Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/indonesia/logung2012.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/paleolimnology/asia/indonesia/logung2012.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>2019-03-27</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2019-03-27</Last_DIF_Revision_Date>
</DIF>
