Articles | Volume 21, issue 5
Hydrol. Earth Syst. Sci., 21, 2545–2557, 2017
Hydrol. Earth Syst. Sci., 21, 2545–2557, 2017

Research article 23 May 2017

Research article | 23 May 2017

Reviving the “Ganges Water Machine”: where and how much?

Lal Muthuwatta et al.

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Cited articles

Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop evapotranspiration: guidelines for computing crop water requirements, FAO irrigation and drainage paper 56, FAO, Rome, 300 pp., 1999.
Amarasinghe, U. A., Muthuwatta, L., Surinaidu, L., Anand, S., and Jain, S. K.: Reviving the Ganges Water Machine: potential, Hydrol. Earth Syst. Sci., 20, 1085–1101,, 2016.
Amarnath, G., Ameer, M., Aggarwal, P., and Smakhtin, V.: Detecting spatio-temporal changes in the extent of seasonal and annual flooding in South Asia using multi-resolution satellite data, Proc. SPIE, 8538, 853818,, 2012.
Arnold, J. G., Srinivasan, R., Muttiah, R. S., and Williams, J. R.: Large area hydrologic modeling and assessment part 1: Model development, J. Am. Water Resour. Assoc., 34, 73–89, 1998.
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Short summary
Agricultural production in the Ganges River basin is affected by the water shortage in the dry months, while the excess water during the rainy season causes floods in the downstream. Annual total surface runoff generated in the basin is about 298 ± 99 Bm3, and runoff in the monsoon months contributes up to 80 % of this total runoff. Comparison of sub-basin-wise surface runoff with the estimated unmet water demand indicated that capturing only a portion of the wet-season runoff would be sufficient.