Lake Towuti, Indonesia 60KYr Multiproxy Sediment Data Russell, J.M.; Vogel, H.; Konecky, B.L.; Bijaksana, S.; Huang, Y.; Melles, M.; Wattrus, N.; Costa, K.; King, J.W. Russell, J.M. Vogel, H. Konecky, B.L. Bijaksana, S. Huang, Y. Melles, M. Wattrus, N. Costa, K. King, J.W. Warm Pool hydrology earth science/paleoclimate/paleolimnology (depth,null,null,centimeter,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (titanium dioxide,sediment,null,percent,null,paleolimnology,null,inductively-coupled plasma mass spectrometry,N,null) earth science/paleoclimate/paleolimnology (titanium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null) earth science/paleoclimate/paleolimnology (age,null,null,calendar year before present,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (delta 13C,C28 n-alkanoic acid,null,per mil PDB,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology earth science/paleoclimate/paleolimnology (Lake Towuti>LATITUDE -2.732836>LONGITUDE 121.515956) 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. STUDY NOTES: 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 NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Russell, J.M. Investigator : Vogel, H. Investigator : Konecky, B.L. Investigator : Bijaksana, S. Investigator : Huang, Y. Investigator : Melles, M. Investigator : Wattrus, N. Investigator : Costa, K. Investigator : King, J.W. 2014-03-29 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/16236 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014d13c-wax.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014ti.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014tio.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014d13c-wax.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014ti.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014tio.txt English https://www.ncdc.noaa.gov/paleo/study/16236 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014d13c-wax.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014ti.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/towuti2014tio.txt James M. Russell, Hendrik Vogel, Bronwen L. Konecky, Satria Bijaksana, Yongsong Huang, Martin Melles, Nigel Wattrus, Kassandra Costa, and John W. King2014Glacial forcing of central Indonesian hydroclimate since 60,000 y B.P.Proceedings of the National Academy of Sciences10.1073/pnas.1402373111http://www.pnas.org/content/early/2014/03/20/1402373111.abstract START YEAR: 60336 cal yr BP * END YEAR: 630 cal yr BP 121.515956 -2.732836 121.515956 -2.732836