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Spatial complexity of 'Little Ice Age' climate in East Africa: sedimentary records from two crater lake basins in western Uganda

(2007) HOLOCENE. 17(2). p.183-193
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Abstract
Lithostratigraphic analyses of the sedimentary record from two contrasting crater lake basins in western Uganda, Africa, provide evidence for three major century-scale and intervals during the last 2000 year. Variations in sedimentation and salt mineralogy of hypersaline Lake Kitagata, and a succession of fine-grained lake sediments and peat in the freshwater Lake Kibengo, suggest century-scale droughts centred on AD 0, similar to 1100, similar to 1550 and 1750. These results broadly support data from nearby Lake Edward on the timing of drought in western Uganda, but contrast with lake sediment records from eastern equatorial Africa. In particular, our results suggest regional variability of East African climate during the main phase of the 'Little Ice Age' (AD similar to 1500 to 1800), with westernmost East Africa experiencing drought while areas farther east were wet. This spatial pattern highlights the strongly regional nature of century-scale climate changes over the African continent, and holds implications for the mechanisms governing African rainfall during the 'Little Ice Age'.
Keywords
magadiite, 'Little Ice Age', palaeoclimate, sedimentology, thenardite, spatial complexity, crater lakes, climate variability, Uganda, East Africa, LAST GLACIAL MAXIMUM, WATER-BALANCE, ENVIRONMENTAL-CHANGE, HOLOCENE, EDWARD, RAINFALL, KENYA, CONGO, RECONSTRUCTION, FLUCTUATIONS

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Citation

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MLA
Russell, James M, Dirk Verschuren, and Hilde Eggermont. “Spatial Complexity of ‘Little Ice Age’ Climate in East Africa: Sedimentary Records from Two Crater Lake Basins in Western Uganda.” HOLOCENE 17.2 (2007): 183–193. Print.
APA
Russell, J. M., Verschuren, D., & Eggermont, H. (2007). Spatial complexity of “Little Ice Age” climate in East Africa: sedimentary records from two crater lake basins in western Uganda. HOLOCENE, 17(2), 183–193.
Chicago author-date
Russell, James M, Dirk Verschuren, and Hilde Eggermont. 2007. “Spatial Complexity of ‘Little Ice Age’ Climate in East Africa: Sedimentary Records from Two Crater Lake Basins in Western Uganda.” Holocene 17 (2): 183–193.
Chicago author-date (all authors)
Russell, James M, Dirk Verschuren, and Hilde Eggermont. 2007. “Spatial Complexity of ‘Little Ice Age’ Climate in East Africa: Sedimentary Records from Two Crater Lake Basins in Western Uganda.” Holocene 17 (2): 183–193.
Vancouver
1.
Russell JM, Verschuren D, Eggermont H. Spatial complexity of “Little Ice Age” climate in East Africa: sedimentary records from two crater lake basins in western Uganda. HOLOCENE. 2007;17(2):183–93.
IEEE
[1]
J. M. Russell, D. Verschuren, and H. Eggermont, “Spatial complexity of ‘Little Ice Age’ climate in East Africa: sedimentary records from two crater lake basins in western Uganda,” HOLOCENE, vol. 17, no. 2, pp. 183–193, 2007.
@article{413760,
  abstract     = {Lithostratigraphic analyses of the sedimentary record from two contrasting crater lake basins in western Uganda, Africa, provide evidence for three major century-scale and intervals during the last 2000 year. Variations in sedimentation and salt mineralogy of hypersaline Lake Kitagata, and a succession of fine-grained lake sediments and peat in the freshwater Lake Kibengo, suggest century-scale droughts centred on AD 0, similar to 1100, similar to 1550 and 1750. These results broadly support data from nearby Lake Edward on the timing of drought in western Uganda, but contrast with lake sediment records from eastern equatorial Africa. In particular, our results suggest regional variability of East African climate during the main phase of the 'Little Ice Age' (AD similar to 1500 to 1800), with westernmost East Africa experiencing drought while areas farther east were wet. This spatial pattern highlights the strongly regional nature of century-scale climate changes over the African continent, and holds implications for the mechanisms governing African rainfall during the 'Little Ice Age'.},
  author       = {Russell, James M and Verschuren, Dirk and Eggermont, Hilde},
  issn         = {0959-6836},
  journal      = {HOLOCENE},
  keywords     = {magadiite,'Little Ice Age',palaeoclimate,sedimentology,thenardite,spatial complexity,crater lakes,climate variability,Uganda,East Africa,LAST GLACIAL MAXIMUM,WATER-BALANCE,ENVIRONMENTAL-CHANGE,HOLOCENE,EDWARD,RAINFALL,KENYA,CONGO,RECONSTRUCTION,FLUCTUATIONS},
  language     = {eng},
  number       = {2},
  pages        = {183--193},
  title        = {Spatial complexity of 'Little Ice Age' climate in East Africa: sedimentary records from two crater lake basins in western Uganda},
  url          = {http://dx.doi.org/10.1177/0959683607075832},
  volume       = {17},
  year         = {2007},
}

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