noaa-lake-6069 Lake Titicaca 370KYr LT01-2B Sediment Data Fritz, S.C.; Baker, P.A.; Seltzer, G.O.; Ballantyne, A.; Tapia, P.; Cheng, H.; Edwards, R.L. Lake Titicaca 370KYr LT01-2B Sediment Data 2008-01-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/6069 Investigator S.C. Fritz Investigator P.A. Baker Investigator G.O. Seltzer Investigator A. Ballantyne Investigator P. Tapia Investigator H. Cheng Investigator R.L. Edwards earth science paleoclimate paleolimnology depth at sample end,null,null,meter,null,paleolimnology,composited,null,N,null earth science paleoclimate paleolimnology total saline diatoms,null,null,percent,null,paleolimnology,null,null,N,saline planktic earth science paleoclimate paleolimnology total benthic diatoms,null,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology depth at sample start,null,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology depth at sample start,null,null,meter,null,paleolimnology,composited,null,N,null earth science paleoclimate paleolimnology total freshwater diatoms,null,null,percent,null,paleolimnology,null,null,N,freshwater planktic earth science paleoclimate paleolimnology age,null,null,year,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology depth at sample end,null,null,meter,null,paleolimnology,corrected,null,N,null earth science paleoclimate paleolimnology organic carbon,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology volume magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology depth at sample end,null,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology depth,null,null,meter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology calcium carbonate,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology depth at sample start,null,null,meter,null,paleolimnology,corrected,null,N,null earth science paleoclimate paleolimnology delta 13C,organic matter,null,per mil PDB,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology total salinity indifferent diatoms,null,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology age,null,null,calendar year before present,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology geochemistry geoscientificInformation PAGES 2k Network PAGES LOTRED SA2k 371950 cal yr BP -50 cal yr BP Complete -15.93 -15.93 -69.25 -69.25 3810 3810 Continent South America Peru Lake Titicaca Core LT01-2B>LATITUDE -15.93>LONGITUDE -69.25 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Fritz, S.C., P.A. Baker, G.O. Seltzer, A. Ballantyne, P. Tapia, H. Cheng, and R.L. Edwards 2007 Quaternary Research 68 410-420 10.1016/j.yqres.2007.07.008

A 136-m-long drill core of sediments was recovered from tropical high-altitude Lake Titicaca, Bolivia-Peru, enabling a reconstruction of past climate that spans four cycles of regional glacial advance and retreat and that is estimated to extend continuously over the last 370,000 yr. Within the errors of the age model, the periods of regional glacial advance and retreat are concordant respectively with global glacial and interglacial stages. Periods of ice advance in the southern tropical Andes generally were periods of positive water balance, as evidenced by deeper and fresher conditions in Lake Titicaca. Conversely, reduced glaciation occurred during periods of negative water balance and shallow closed-basin conditions in the lake. The apparent coincidence of positive water balance of Lake Titicaca and glacial growth in the adjacent Andes with Northern Hemisphere ice sheet expansion implies that regional water balance and glacial mass balance are strongly influenced by global-scale temperature changes, as well as by precessional forcing of the South American summer monsoon. STUDY NOTES: Carbon and diatom data from 136m long sediment core LT01-2B, Lake Titicaca, Bolivia/Peru, covering approximately 370,000 years.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/bolivia/titicaca2007.xls GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/bolivia/titicaca2007.txt USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11