| PALEOLIMNOLOGY |
Solar variability and the levels of Lake Victoria, East Africa, during the last millenium
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Stager, J.C., D. Ryves, B.F. Cumming, L.D. Meeker, J. Beer. 2005. Solar variability and the levels of Lake Victoria, East
Africa, during the last millenium. Journal of Paleolimnology Vol. 33, Issue 2, Feb. 2005, pp. 243-251
| Data Coverage |
North: .3 * South: .3 |
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West: 33.3333 * East: 33.3333 |
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Altitude: 1135 m |
Start Year: 10203 cal yr BP * End Year: 29 cal yr BP
Data: Please Cite Data Contributors!
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Summary: A new diatom series with 1-6 year resolution from Lake Victoria, East Africa, shows that lake level minima occurred ca. 820-760,
680-660, 640-620, 370-340, and 220-150 calendar years BP. Inferred lake levels were exceptionally high during most of the
Little Ice Age (ca. 600-200 calendar years BP). Synchrony between East African high lake levels and prolonged sunspot minima
during much of the last millenium may reflect solar variability's effects on tropical rainfall, but those relationships reversed
sign ca. 200 years ago. Historical records also show that Victoria lake levels rose during every peak of the ca. 11-year
sunspot cycle since the late 19th century. These findings suggest that, if these apparent tropical sun-climate associations
during the last millenium were real, then they were subject to abrupt sign reversals.
More Info on Paleolimnology |
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Complete XML Record: noaa-lake-5455
(Last Revised: 2007-09-05 )
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