Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin
Although the Ganges River Basin (GRB) has abundant water resources, the seasonal monsoon causes a mismatch in water supply and demand, which creates severe water-related challenges for the people living in the basin, the rapidly growing economy and the environment. Addressing these increasing challenges will depend on how people manage the basin’s groundwater resources, on which the reliance will increase further due to limited prospects for additional surface storage development. This report assesses the potential of the Ganges Water Machine (GWM), a concept proposed 40 years ago, to meet the increasing water demand through groundwater, and mitigate the impacts of floods and droughts. The GWM provides additional subsurface storage (SSS) through the accelerated use of groundwater prior to the onset of the monsoon season, and subsequent recharging of this SSS through monsoon surface runoff. It was identified that there is potential to enhance SSS through managed aquifer recharge during the monsoon season, and to use solar energy for groundwater pumping, which is financially more viable than using diesel as practiced in many areas at present. The report further explores the limitations associated with water quality issues for pumping and recharge in the GRB, and discusses other related challenges, including availability of land for recharge structures and people’s willingness to increase the cropping intensity beyond the present level.
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Format: | Report biblioteca |
Language: | English |
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International Water Management Institute
2016
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Subjects: | water demand, water resources, water supply, water use, water storage, water quality, water accounting, river basin management, groundwater, groundwater depletion, groundwater recharge, domestic water, irrigation water, surface water, runoff water, industrial uses, climate change, monsoon climate, flooding, drought, cost benefit analysis, aquifers, solar energy, renewable energy, pumping, cropping systems, |
Online Access: | https://hdl.handle.net/10568/78434 https://www.iwmi.cgiar.org/Publications/IWMI_Research_Reports/PDF/pub167/rr167.pdf https://doi.org/10.5337/2016.212 |
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dig-cgspace-10568-784342023-12-08T19:36:04Z Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin Amarasinghe, Upali A. Muthuwatta, Lal P. Smakhtin, Vladimir U. Surinaidu, Lagudu Natarajan, R. Chinnasamy, Pennan Kakumanu, Krishna Reddy Prathapar, Sanmugam A. Jain, S.K. Ghosh, N.C. Singh, S. Sharma, A. Kumar, S. Goel, M.K. water demand water resources water supply water use water storage water quality water accounting river basin management groundwater groundwater depletion groundwater recharge domestic water irrigation water surface water runoff water industrial uses climate change monsoon climate flooding drought cost benefit analysis aquifers solar energy renewable energy pumping cropping systems Although the Ganges River Basin (GRB) has abundant water resources, the seasonal monsoon causes a mismatch in water supply and demand, which creates severe water-related challenges for the people living in the basin, the rapidly growing economy and the environment. Addressing these increasing challenges will depend on how people manage the basin’s groundwater resources, on which the reliance will increase further due to limited prospects for additional surface storage development. This report assesses the potential of the Ganges Water Machine (GWM), a concept proposed 40 years ago, to meet the increasing water demand through groundwater, and mitigate the impacts of floods and droughts. The GWM provides additional subsurface storage (SSS) through the accelerated use of groundwater prior to the onset of the monsoon season, and subsequent recharging of this SSS through monsoon surface runoff. It was identified that there is potential to enhance SSS through managed aquifer recharge during the monsoon season, and to use solar energy for groundwater pumping, which is financially more viable than using diesel as practiced in many areas at present. The report further explores the limitations associated with water quality issues for pumping and recharge in the GRB, and discusses other related challenges, including availability of land for recharge structures and people’s willingness to increase the cropping intensity beyond the present level. 2016 2016-12-21T09:23:35Z 2016-12-21T09:23:35Z Report Amarasinghe, Upali A.; Muthuwatta, Lal; Smakhtin, Vladimir; Surinaidu, Lagudu; Natarajan, R.; Chinnasamy, Pennan; Kakumanu, Krishna Reddy; Prathapar, Sanmugam A.; Jain, S. K.; Ghosh, N. C.; Singh, S.; Sharma, A.; Jain, S. K.; Kumar, S.; Goel, M. K. 2016. Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin. Colombo, Sri Lanka: International Water Management Institute (IWMI).. 42p. (IWMI Research Report 167) doi: 10.5337/2016.212 978-92-9090-842-5 1026-0862 https://hdl.handle.net/10568/78434 https://www.iwmi.cgiar.org/Publications/IWMI_Research_Reports/PDF/pub167/rr167.pdf https://doi.org/10.5337/2016.212 en IWMI Research Report Copyrighted; all rights reserved Open Access 42p. application/pdf International Water Management Institute |
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water demand water resources water supply water use water storage water quality water accounting river basin management groundwater groundwater depletion groundwater recharge domestic water irrigation water surface water runoff water industrial uses climate change monsoon climate flooding drought cost benefit analysis aquifers solar energy renewable energy pumping cropping systems water demand water resources water supply water use water storage water quality water accounting river basin management groundwater groundwater depletion groundwater recharge domestic water irrigation water surface water runoff water industrial uses climate change monsoon climate flooding drought cost benefit analysis aquifers solar energy renewable energy pumping cropping systems |
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water demand water resources water supply water use water storage water quality water accounting river basin management groundwater groundwater depletion groundwater recharge domestic water irrigation water surface water runoff water industrial uses climate change monsoon climate flooding drought cost benefit analysis aquifers solar energy renewable energy pumping cropping systems water demand water resources water supply water use water storage water quality water accounting river basin management groundwater groundwater depletion groundwater recharge domestic water irrigation water surface water runoff water industrial uses climate change monsoon climate flooding drought cost benefit analysis aquifers solar energy renewable energy pumping cropping systems Amarasinghe, Upali A. Muthuwatta, Lal P. Smakhtin, Vladimir U. Surinaidu, Lagudu Natarajan, R. Chinnasamy, Pennan Kakumanu, Krishna Reddy Prathapar, Sanmugam A. Jain, S.K. Ghosh, N.C. Singh, S. Sharma, A. Kumar, S. Goel, M.K. Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin |
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Although the Ganges River Basin (GRB) has abundant water resources, the seasonal monsoon causes a mismatch in water supply and demand, which creates severe water-related challenges for the people living in the basin, the rapidly growing economy and the environment. Addressing these increasing challenges will depend on how people manage the basin’s groundwater resources, on which the reliance will increase further due to limited prospects for additional surface storage development. This report assesses the potential of the Ganges Water Machine (GWM), a concept proposed 40 years ago, to meet the increasing water demand through groundwater, and mitigate the impacts of floods and droughts. The GWM provides additional subsurface storage (SSS) through the accelerated use of groundwater prior to the onset of the monsoon season, and subsequent recharging of this SSS through monsoon surface runoff. It was identified that there is potential to enhance SSS through managed aquifer recharge during the monsoon season, and to use solar energy for groundwater pumping, which is financially more viable than using diesel as practiced in many areas at present. The report further explores the limitations associated with water quality issues for pumping and recharge in the GRB, and discusses other related challenges, including availability of land for recharge structures and people’s willingness to increase the cropping intensity beyond the present level. |
format |
Report |
topic_facet |
water demand water resources water supply water use water storage water quality water accounting river basin management groundwater groundwater depletion groundwater recharge domestic water irrigation water surface water runoff water industrial uses climate change monsoon climate flooding drought cost benefit analysis aquifers solar energy renewable energy pumping cropping systems |
author |
Amarasinghe, Upali A. Muthuwatta, Lal P. Smakhtin, Vladimir U. Surinaidu, Lagudu Natarajan, R. Chinnasamy, Pennan Kakumanu, Krishna Reddy Prathapar, Sanmugam A. Jain, S.K. Ghosh, N.C. Singh, S. Sharma, A. Kumar, S. Goel, M.K. |
author_facet |
Amarasinghe, Upali A. Muthuwatta, Lal P. Smakhtin, Vladimir U. Surinaidu, Lagudu Natarajan, R. Chinnasamy, Pennan Kakumanu, Krishna Reddy Prathapar, Sanmugam A. Jain, S.K. Ghosh, N.C. Singh, S. Sharma, A. Kumar, S. Goel, M.K. |
author_sort |
Amarasinghe, Upali A. |
title |
Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin |
title_short |
Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin |
title_full |
Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin |
title_fullStr |
Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin |
title_full_unstemmed |
Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin |
title_sort |
reviving the ganges water machine: potential and challenges to meet increasing water demand in the ganges river basin |
publisher |
International Water Management Institute |
publishDate |
2016 |
url |
https://hdl.handle.net/10568/78434 https://www.iwmi.cgiar.org/Publications/IWMI_Research_Reports/PDF/pub167/rr167.pdf https://doi.org/10.5337/2016.212 |
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