{"NOAAStudyId":"16236","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2014-03-29","dataPublisher":"NOAA","dataType":"PALEOLIMNOLOGY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/lake","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-lake-16236.xml","doi":null,"earliestYearBP":60336,"earliestYearCE":-58386,"entryId":"noaa-lake-16236","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"P2C2"}],"investigators":"Russell, J.M.; Vogel, H.; Konecky, B.L.; Bijaksana, S.; Huang, Y.; Melles, M.; Wattrus, N.; Costa, K.; King, J.W.","mostRecentYearBP":630,"mostRecentYearCE":1320,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/16236","originalSource":null,"publication":[{"abstract":"The Indo-Pacific warm pool houses the largest zone of deep atmospheric convection on Earth and plays a critical role in global climate variations. Despite the region's importance, changes in Indo-Pacific hydroclimate on orbital timescales remain poorly constrained. Here we present high-resolution geochemical records of surface runoff and vegetation from sediment cores from Lake Towuti, on the island of Sulawesi in central Indonesia, that continuously span the past 60,000 y. We show that wet conditions and rainforest ecosystems on Sulawesi present during marine isotope stage 3 (MIS3) and the Holocene were interrupted by severe drying between ~33,000 and 16,000 y B.P. when Northern Hemisphere ice sheets expanded and global temperatures cooled. Our record reveals little direct influence of precessional orbital forcing on regional climate, and the similarity between MIS3 and Holocene climates observed in Lake Towuti suggests that exposure of the Sunda Shelf has a weaker influence on regional hydroclimate and terrestrial ecosystems than suggested previously. We infer that hydrological variability in this part of Indonesia varies strongly in response to high-latitude climate forcing, likely through reorganizations of the monsoons and the position of the intertropical convergence zone. These findings suggest an important role for the tropical western Pacific in amplifying glacial-interglacial climate variability. ","author":{"name":"James M. Russell, Hendrik Vogel, Bronwen L. Konecky, Satria Bijaksana, Yongsong Huang, Martin Melles, Nigel Wattrus, Kassandra Costa, and John W. King"},"citation":"James M. Russell, Hendrik Vogel, Bronwen L. Konecky, Satria Bijaksana, Yongsong Huang, Martin Melles, Nigel Wattrus, Kassandra Costa, and John W. King. 2014. Glacial forcing of central Indonesian hydroclimate since 60,000 y B.P. Proceedings of the National Academy of Sciences. . doi: 10.1073/pnas.1402373111","edition":null,"identifier":{"id":"10.1073/pnas.1402373111","type":"doi","url":"http://dx.doi.org/10.1073/pnas.1402373111"},"issue":null,"journal":"Proceedings of the National Academy of Sciences","pages":null,"pubRank":"1","pubYear":2014,"reportNumber":null,"title":"Glacial forcing of central Indonesian hydroclimate since 60,000 y B.P.","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["Warm Pool","hydrology"],"site":[{"NOAASiteId":"55827","geo":{"geoType":"Feature","geometry":{"coordinates":["-2.732836","121.515956"],"type":"POINT"},"properties":{"easternmostLongitude":"121.515956","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"-2.732836","southernmostLatitude":"-2.732836","westernmostLongitude":"121.515956"}},"locationName":"Ocean>Indian Ocean>Indonesia","mappable":"Y","paleoData":[{"NOAADataTableId":"26248","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>geochemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014ti.txt","linkText":"Titanium by scanning XRF","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"energy-dispersive x-ray fluorescence spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"count per second","cvWhat":"chemical composition>element or single-element molecule>titanium"}]}],"dataTableName":"Towuti2014Ti","dataTableNotes":null,"earliestYear":60281,"earliestYearBP":60281,"earliestYearCE":-58331,"mostRecentYear":7196,"mostRecentYearBP":7196,"mostRecentYearCE":-5246,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"26249","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>carbon isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014d13c-wax.txt","linkText":"d13C of Terrestrial Leaf Wax","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>organic compound>organooxygen compound>fatty acid>n-alkanoic acid>C28 n-alkanoic acid","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"}]}],"dataTableName":"Towuti2014d13Cwax","dataTableNotes":null,"earliestYear":60336,"earliestYearBP":60336,"earliestYearCE":-58386,"mostRecentYear":630,"mostRecentYearBP":630,"mostRecentYearCE":1320,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"26250","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>geochemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014tio.txt","linkText":"Titanium oxide by ICP","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"inductively-coupled plasma mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"percent","cvWhat":"chemical composition>compound>inorganic compound>titanium oxide>titanium dioxide"}]}],"dataTableName":"Towuti2014TiO","dataTableNotes":null,"earliestYear":60325,"earliestYearBP":60325,"earliestYearCE":-58375,"mostRecentYear":669,"mostRecentYearBP":669,"mostRecentYearCE":1281,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Lake Towuti"}],"studyCode":null,"studyName":"Lake Towuti, Indonesia 60KYr Multiproxy Sediment Data","studyNotes":"High-resolution sedimentary Ti concentrations measured by core-scanning X-ray Fluorescence (XRF) and flux-fusion ICP-AES, and carbon isotopic compositions of terrestrial leaf wax (C-28 alkanoic acid). Analyses conducted on core IDLE-TOW10-9B-1K\n","version":"1.0","xmlId":"13962"}