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How to climate proof water and sanitation services in the peri-urban areas in Antananarivo : work based on field visit to Antananarivo undertaken in August-September 2010

This report evaluates the impacts of climate change on water and sanitation technologies in the informal and peri-urban areas in Antananarivo and considers the potential adaptations required to mitigate the impacts. The vulnerabilities and adaptations were determined based upon a field visit, a vulnerability assessment and a literature review. Under current forecasts for Antananarivo mean temperatures, rainfall and rainfall intensity are predicted to increase. There will be more frequent storms and cyclones will decrease in frequency but increase in intensity. This is likely to increase the volume of runoff, raise river levels and increase the speed of flood onset; resulting in an increase in flooding from both the river and the drains. [authors' abstract]

TitleHow to climate proof water and sanitation services in the peri-urban areas in Antananarivo : work based on field visit to Antananarivo undertaken in August-September 2010
Publication TypeMiscellaneous
Year of Publication2010
AuthorsHeath, T., Parker, A., Weatherhead, K.
Pagination30 p. : 2 tab.
Date Published2010-08-01
PublisherWater and Sanitation for the Urban Poor, WSUP
Place PublishedLondon, UK
Keywordsclimate, low-income communities, madagascar, policies, sanitation, sdiafr, sdipol, urban areas, water supply
Abstract

This report evaluates the impacts of climate change on water and sanitation technologies in the informal and peri-urban areas in Antananarivo and considers the potential adaptations required to mitigate the impacts. The vulnerabilities and adaptations were determined based upon a field visit, a vulnerability assessment and a literature review. Under current forecasts for Antananarivo mean temperatures, rainfall and rainfall intensity are predicted to increase. There will be more frequent storms and cyclones will decrease in frequency but increase in intensity. This is likely to increase the volume of runoff, raise river levels and increase the speed of flood onset; resulting in an increase in flooding from both the river and the drains. [authors' abstract]

Notes29 ref.
Custom 1202.3, 302.3