Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Extreme Climatic Events to Intensify in the Lake Victoria Basin Under Global Warming

Version 1 : Received: 24 July 2021 / Approved: 26 July 2021 / Online: 26 July 2021 (14:39:44 CEST)
Version 2 : Received: 6 March 2023 / Approved: 6 March 2023 / Online: 6 March 2023 (15:46:05 CET)

A peer-reviewed article of this Preprint also exists.

Ogega, O.M.; Scoccimarro, E.; Misiani, H.; Mbugua, J. Extreme Climatic Events to Intensify over the Lake Victoria Basin under Global Warming. Scientific Reports 2023, 13, doi:10.1038/s41598-023-36756-3. Ogega, O.M.; Scoccimarro, E.; Misiani, H.; Mbugua, J. Extreme Climatic Events to Intensify over the Lake Victoria Basin under Global Warming. Scientific Reports 2023, 13, doi:10.1038/s41598-023-36756-3.

Abstract

This paper presents an analysis of future precipitation patterns over the Lake Victoria Basin using bias-corrected CMIP6 model projections. A mean increase of about 5% in mean annual (ANN) and seasonal [March-May (MAM), June-August (JJA), and October-December (OND)] precipitation climatology is expected over the domain by mid-century (2040-2069). The changes intensify towards the end of the century (2070-2099) with an increase in mean precipitation of about 16% (ANN), 10% (MAM), and 18% (OND) expected, relative to the 1985-2014 baseline period. Additionally, the mean daily precipitation intensity (SDII), the maximum 5-day precipitation values (RX5Day), and the heavy precipitation events, represented by the width of the right tail distribution of precipitation (99p-90p) show an increase of 16%, 29%, and 47%, respectively, by the end of the century. The projected changes have a substantial implication for the region - which is already experiencing conflicts over water and water-related resources.

Keywords

CMIP6; ScenarioMIP; Lake Victoria; climate change; SSP585; extreme weather

Subject

Environmental and Earth Sciences, Atmospheric Science and Meteorology

Comments (1)

Comment 1
Received: 6 March 2023
Commenter: Obed Ogega
Commenter's Conflict of Interests: Author
Comment: We revised our methodology to produce the current version of the manuscript.
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