| PALEOLIMNOLOGY |
A 725 yr cycle in the climate of central Africa during the late Holocene
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Russell, J.M., T.C. Johnson, M.R. Talbot. 2003. A 725 yr cycle in the climate of central Africa during the late Holocene.
Geology Vol. 31, no. 8, pp. 677-680
| Data Coverage |
North: -.4167 * South: -.4167 |
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West: 29.75 * East: 29.75 |
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Altitude: 917 m |
Start Year: 5400 cal yr BP * End Year: 0 cal yr BP
Data: Please Cite Data Contributors!
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Summary: High-resolution analyses of the chemical and stable isotope composition of endogenic calcite from Lake Edward, an equatorial
rift lake in central Africa, reveal large oscillations in African climate and moisture balance over the past 5400 yr. These
oscillations indicate a series of droughts from 4900 to 400 yr B.P. that define a drought period of ~725 yr. This period may
be correlated to variations in the Indian Ocean monsoons, as documented by similar periods in sea-surface salinity records
from the northern Indian Ocean. The similarities in periodicity of the Lake Edward and Indian Ocean records may indicate that
low-frequency variability within the Indian and Pacific Oceans dominates millennial-scale African moisture balance and the
Holocene climate of the tropical Indian Ocean.
More Info on Paleolimnology |
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Complete XML Record: noaa-lake-5453
(Last Revised: 2009-02-11 )
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