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Recent glacial recession in the Rwenzori Mountains of East Africa due to rising air temperature
Department of Geography, University College London, London, UK
Department of Geography, University College London, London, UK
Water Resources Management Department, Directorate of Water Development, Entebbe, Uganda
Meteorology Department, Kampala, Uganda
Department of Geology, Makerere University, Kampala, Uganda
Department of Geography, Makerere University, Kampala, Uganda
Based on field surveys and analyses of optical spaceborne images (LandSat5, LandSat7), we report recent decline in the areal extent of glaciers in the Rwenzori Mountains of East Africa from 2.01 ± 0.56 km2 in 1987 to 0.96 ± 0.34 km2 in 2003. The spatially uniform loss of glacial cover at lower elevations together with meteorological trends derived from both station and reanalysis data, indicate that increased air temperature is the main driver. Clear trends toward increased air temperatures over the last four decades of ∼0.5°C per decade exist without significant changes in annual precipitation. Extrapolation of trends in glacial recession since 1906 suggests that glaciers in the Rwenzori Mountains will disappear within the next two decades.
Received 15 February 2006; accepted 12 April 2006; published 17 May 2006.
Citation: (2006), Recent glacial recession in the Rwenzori Mountains of East Africa due to rising air temperature, Geophys. Res. Lett., 33, L10402, doi:10.1029/2006GL025962.
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