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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":"2003-02-01","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-5456.xml","doi":null,"earliestYearBP":24308,"earliestYearCE":-22358,"entryId":"noaa-lake-5456","funding":[],"investigators":"Johnson, T.C.; Brown, E.T.; McManus, J.F.; Barry, S.L.; Barker, P.","mostRecentYearBP":155,"mostRecentYearCE":1795,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/5456","originalSource":null,"publication":[{"abstract":"High-resolution profiles of the mass accumulation rate of biogenic silica and  other geochemical proxies in two piston cores from northern Lake Malawi  provide a climate signal for this part of tropical Africa spanning the past 25,000 years.  The biogenic silica mass accumulation rate was low during the relatively dry  late Pleistocene, when the river flux of silica to the lake was suppressed.  Millennial-scale fluctuations, due to upwelling intensity, in the late Pleistocene  climate of the Lake Malawi basin appear to have been closely linked to the  Northern Hemisphere climate until 11 thousand years ago. Relatively cold  conditions in the Northern Hemisphere coincided with more frequent north winds  over the Malawi basin, perhaps resulting from a more southward migration  of the Intertropical Convergence Zone.","author":null,"citation":"Johnson, T.C., E.T. Brown, J.F. McManus, S.L. Barry, P. Barker. 2002. A high resolution paleoclimate record spanning the past 25,000 years in southern East Africa. Science Vol. 296, pp. 113-114","edition":null,"identifier":null,"issue":null,"journal":"Science","pages":null,"pubRank":"1","pubYear":2002,"reportNumber":null,"title":"A high resolution paleoclimate record spanning the past 25,000 years in southern East Africa","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"8881","geo":{"geoType":"Feature","geometry":{"coordinates":["-9.97667","34.23"],"type":"POINT"},"properties":{"easternmostLongitude":"34.23","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"-9.97667","southernmostLatitude":"-9.97667","westernmostLongitude":"34.23"}},"locationName":"Continent>Africa>Eastern Africa>Malawi","mappable":"Y","paleoData":[{"NOAADataTableId":"7199","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>mineralogy","earth science>paleoclimate>paleolimnology>physical 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