Lake Malawi 700 Year Biogenic Silica Data Johnson, T.C. Johnson, T.C. earth science/paleoclimate/paleolimnology (age,null,null,year Common Era,null,paleolimnology,null,null,N,varve counts) earth science/paleoclimate/paleolimnology (depth,null,null,centimeter,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (biogenic silica,sediment,null,percent,null,paleolimnology,null,null,N,replicates) earth science/paleoclimate/paleolimnology (biogenic silica,sediment,null,percent,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (age,null,null,year Common Era,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology earth science/paleoclimate/paleolimnology (Lake Malawi, core M93-1SB>LATITUDE -9.81667>LONGITUDE 34.1) (Lake Malawi, core M98-10MC>LATITUDE -9.97667>LONGITUDE 34.23167) (Lake Malawi, core M98-1PG>LATITUDE -10.005>LONGITUDE 34.28667) (Lake Malawi, core M98-11C>LATITUDE -10.00333>LONGITUDE 34.28833) (Lake Malawi, core M93-2SB>LATITUDE -9.81667>LONGITUDE 34.1) (Lake Malawi, core M98-2PG>LATITUDE -9.97667>LONGITUDE 34.23) Biogenic silica profiles in varved sediments from northern Lake Malawi (Nyasa), East Africa, span the past 700 yr and reflect past primary productivity in the overlying waters. On a centennial scale this has been influenced by lake level and a consequent shift in the location of high diatom productivity within the lake basin. Primary production was higher during the Little Ice Age, an arid period from about A.D. 1570 to 1850, when lake level was about 120 m lower than during the previous three centuries or the past 150 yr. STUDY NOTES: The data are biogenic silica (as % SiO2) versus age from six cores in the north basin of Lake Malawi, at the southern end of the East African Rift Valley. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Johnson, T.C. 2003-10-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/5457 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-1sb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-1pg.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-11mc.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/readme-malawi.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-10mc.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-2pg.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-11mc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-10mc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-2pg.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-1sb.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-1pg.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-2sb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-1sb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-1pg.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-11mc.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/readme-malawi.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-10mc.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-2pg.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-11mc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-10mc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-2pg.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-1sb.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-1pg.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-2sb.txt English https://www.ncdc.noaa.gov/paleo/study/5457 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-1sb.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-1pg.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-11mc.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/readme-malawi.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-10mc.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-2pg.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-11mc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-10mc.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-2pg.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-1sb.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-1pg.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-2sb.txt Johnson, T.C.. 2001. Decadal record of climate variability spanning the last 700 years in the southern tropics of East Africa. Geology Vol. 29, No. 1, p. 83-86, January 2001 START YEAR: 500 cal yr BP * END YEAR: -46 cal yr BP 34.1 -10.005 34.28833 -9.81667