Groundwater Asia

Mapping Groundwater Resilience to Climate Change and Human Development in Asian Cities
Mapping Groundwater Resilience to Climate Change and Human Development in Asian Cities
A GIS-based methodology to delineate potential areas for groundwater development: a case study from Kathmandu Valley, Nepal

For effective planning of activities aimed at recovering aquifer depletion and maintaining the health of groundwater ecosystem, estimates of spatial distribution in groundwater storage volume would be useful. The estimated volume, if analyzed together with other hydrogeologic characteristics, may help delineate potential areas for groundwater development. This study proposes a GIS-based ARC model to delineate potential areas for groundwater development; where ‘A’ stands for groundwater availability, ‘R’ for groundwater release potential of the soil matrix and ‘C’ for the cost for groundwater development. The model is illustrated with a case of the Kathmandu Valley in Central Nepal, where active discussions are going on to develop and implement groundwater management strategies. The study results show that shallow aquifers have high groundwater storage potential (compared to the deep) and favourable areas for groundwater development are concentrated at some particular areas in shallow and deep aquifers. The distribution of groundwater storage and potential areas for groundwater development is then mapped using GIS.

SHARE THIS POST

Share on facebook
Share on twitter
Share on linkedin
Share on reddit
Share on print
Share on email

Recent Publications

January 2020
Groundwater resources of Kathmandu Valley in Nepal are under immense pressure from multiple stresses, including climate change. Due to over-extraction, groundwater resources are depleting, leading to social, environmental, and economic problems. Climate change might add additional pressure by altering groundwater recharge rates and availability [...]
March 2020
Ho Chi Minh City (HCMC), Vietnam has undergone tremendous transformation in land-use practices in the past few decades. The groundwater-related issues have also been a major concern in the fast-growing southern city of Vietnam. Quantitative prediction of the impact on groundwater recharge due to [...]
September 2017
Impacts of climate change on water resources, especially groundwater, can no longer be hidden. These impacts are further exacerbated under the integrated influence of climate variability, climate change and anthropogenic activities. The degree of impact varies according to geographical location and other factors leading [...]