noaa-lake-5457
Lake Malawi 700 Year Biogenic Silica Data
Johnson, T.C.
Lake Malawi 700 Year Biogenic Silica Data
2003-10-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/5457
Investigator
T.C.
Johnson
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
geochemistry
earth science
paleoclimate
paleolimnology
lake level
geoscientificInformation
500 cal yr BP
-46 cal yr BP
Complete
-10.005
-9.81667
34.1
34.28833
Continent
Africa
Eastern Africa
Malawi
Lake Malawi, core M93-1SB>LATITUDE -9.81667>LONGITUDE 34.1
Continent
Africa
Eastern Africa
Malawi
Lake Malawi, core M98-10MC>LATITUDE -9.97667>LONGITUDE 34.23167
Continent
Africa
Eastern Africa
Malawi
Lake Malawi, core M98-1PG>LATITUDE -10.005>LONGITUDE 34.28667
Continent
Africa
Eastern Africa
Malawi
Lake Malawi, core M98-11C>LATITUDE -10.00333>LONGITUDE 34.28833
Continent
Africa
Eastern Africa
Malawi
Lake Malawi, core M93-2SB>LATITUDE -9.81667>LONGITUDE 34.1
Continent
Africa
Eastern Africa
Malawi
Lake Malawi, core M98-2PG>LATITUDE -9.97667>LONGITUDE 34.23
None
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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
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
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
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.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-1sb.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-1pg.xls
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https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-11mc.xls
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https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/readme-malawi.txt
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https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-10mc.xls
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https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-2pg.xls
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https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-11mc.txt
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https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-10mc.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-2pg.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-1sb.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m98-1pg.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/m93-2sb.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11