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Publication Type
Conference Proceedings
UWI Author(s)
Author, Analytic
Ahmad, Rafi; Brown, Lawerence
Author Role
n/a
Author Affiliation
Department of Geography and Geology
Paper/Section Title
Assessment of rainfall characteristics and landslide hazards in Jamaica
Medium Designator
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Editor/Compiler
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Editor/Compiler Role
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Proceedings Title
Proceedings of the Sixth Conference, Faculty of Pure and Applied Sciences edited by Daniel Coore and Robert J.Lancashire.
Date of Meeting
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Place of Meeting
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Place of Publication
Kingston, Jamaica
Publisher Name
Faculty of Pure and Applied Sciences, University of the West Indies
Date of Publication
2003
Date of Copyright
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Volume ID
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Location in Work
37
Extent of Work
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Series Editor
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Series Editor Role
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Series Title
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Notes
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Abstract
Rainfall-induced shallow landslides, debris flows and mudflows are common occurrence on Jamaica and also on the other Caribbean islands. Each year in Jamaica these landslides, which are usually accompanied by flooding, cause extensive damage to island's road network, culverts, bridges, agriculture and livestock, domestic water supply, property, and ocassionally result in loss of human life. These landslides are amenable to correction and avoidance and economic loss reduction is possible. The aims of this paper are to describe the physical characteristics of the terrain in relation to rainfall and to establish the rainfall threshold for shallow landslides of flow type using data for the storms that affected eastern Jamaica during 2001-2002. The relation between rainfall accumulation-duration and landslide of floe type is described by a line fitted to the lower boundary of those points that represent landslide-triggering storms. Our results suggest that in general average rainfall accumulation of about 200-250mm for storm durations of approximately 12-48 hours is sufficient to induce widespread landslide activity.....
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