Groundwater resources in Kathmandu valley provide water for human consumption, industry, hotels and agriculture as well. Rapid urbanization, mushroomed increment in the built up area, overexploitation of surface and groundwater resource, removal of vegetation cover, change in land use pattern, and formation of impervious surface have led the ultimate lowering of groundwater table and minimization of groundwater recharge as well. This study quantifies the drawdown rate along with the groundwater dynamics across the Kathmandu valley, as the valley constitutes mostly of the urban population of Nepal including the capital city. In Kathmandu valley, for domestic purpose as well as the industrial purpose, water has been pumped continuously surpassing the natural recharge. The groundwater table drawdown has been estimated based on the recorded data of average static groundwater table depth and was found to be 0.7249 m in average and linear regression model of drawdown has been depicted along with the associated range of standard deviation. This drawdown has close proximity with the Mexico City alluvial deposit where ground subsidence is nowadays noticeably occurring. Similar land subsidence, water pollution and scarcity of water would be the near future consequence in Kathmandu valley as nearly 50 % of valley population relies on groundwater resources. Similarly, the groundwater dynamics study has shown the shifting of drainage towards southwestern part of Kathmandu valley. Thus Kathmandu valley is in dire need of proper groundwater management execution in order to avoid the hydrological, hydro-geological and environmental impacts of rapid drawdown.

No abstract

Water resources are the most important natural resources as they are renewable natural resources and also abundantly available in the context of our country. It has huge number of large rivers and streams which has got very high potential of generating hydroelectricity. Construction of any civil engineering structure is not only fully about the design on which it based on but also the impact it does to the surrounding of it. Huge civil engineering structure like Budhi Gandaki hydropower project is a proper demand for the country like ours. Budhi Gandaki Hydropower project site is west of Kathmandu having £576261 and N3079050. The project has the huge potential of generating about 1200 MW which is obtained by constructing a high rise dam height of 263m. In "A Study of Reservoir Volume and its Inundated RMs of Budhi Gandaki Hydropower Project with Respect to Dam Height Variation", the analysis was done with the help GIS to find out various inundation nature of the reservoir at dam height variation and even DEM of the Nepal was used to find the catchment area, inundation area, inundation volume and affected RMs of the  project.

No abstract

No abstract