Table of Contents
Journal of Climatology
Volume 2013, Article ID 928501, 8 pages
http://dx.doi.org/10.1155/2013/928501
Research Article

Recent Extreme Precipitation and Temperature Changes in Djibouti City (1966–2011)

1Department of Environmental Sciences and Management, University of Liège, Avenue de Longwy 185, 6700 Arlon, Belgium
2Research Center, Department of Geomatics and Environmental Sciences, University of Djibouti, Avenue Georges Clemenceau, BP 1904, Djibouti

Received 21 March 2013; Accepted 3 October 2013

Academic Editors: A. V. Eliseev, S. Feng, P. Gober, and S. Gualdi

Copyright © 2013 Pierre Ozer and Ayan Mahamoud. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A dataset of 23 derived indicators has been compiled to clarify whether the frequency of rainfall and temperature extremes has changed over the last decades in Djibouti City, eastern Africa. Results show that all precipitation indices have declined over the last decades, although only the very wet day frequency and the very wet day proportion present a significant decline. Annual total precipitation has decreased by 17.4% per decade from 1980 to 2011 and recent mean yearly rainfall (44 mm on average from 2007 to 2011) meets a 73% deficit compared to the 30-year (1981–2010) average (164 mm). The average temperature increase is +0.28°C per decade.Extremely warm days (maximum temperature ≥45.0°C) have become 15 times more frequent than in the pastwhile extremely cool nights (minimum temperature ≤8.6°C) have almost disappeared. Current rainfall shortages and increasing temperature extremes are impacting local people who urgently need adaptation strategies.