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Exploring the impacts of climate change on water resources - regional impacts at a regional scale: Bangladesh

Fung, Chak Fai; Farquharson, Francis; Chowdhury, Jahir. 2006 Exploring the impacts of climate change on water resources - regional impacts at a regional scale: Bangladesh. In: Demuth, S. et al, (ed.) Climate variability and change : hydrological impacts. Wallingford, UK, IAHS Press, Institute of Hydrology, 389-393. (IAHS Publication, 308).

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Abstract/Summary

Bangladesh is located at the confluence of three major river basins: the Ganges, Brahmaputra and Meghna (GBM) basins. The GWAVA (Global Water AVailability Assessment) model, a global-scale gridded approach to hydrological modelling, has been applied to all GBM basins to investigate the impacts of climate change on water resources at a regional scale. The entire model set-up is composed of a coarse-scale GBM-wide model at 0.5 degrees resolution and a fine-scale model at 0.1 degrees representing Bangladesh. A suite of climate scenarios have been collated from regional climate data using the Hadley Centre’s HadRM2 and that generated by the Indian Institute of Tropical Meteorology using the Hadley Centre’s PRECIS. Scenarios for water demands have been developed for the present and future based on socio-economic data from various publicly available sources and local water management plans. The comparison of water demands with supply using spatial-temporal distributed water availability indices enables areas of future scarcity to be identified.

Item Type: Publication - Book Section
Programmes: CEH Programmes pre-2009 publications > Water
CEH Sections: _ Hydrological Risks & Resources
ISBN: 19015027870
Additional Keywords: water resources modelling, climate change, impacts study, grid-based models, water demand, water scarcity, regional climate models
NORA Subject Terms: Meteorology and Climatology
Ecology and Environment
Hydrology
Date made live: 24 Sep 2008 10:43
URI: http://nora.nerc.ac.uk/id/eprint/3162

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