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Rana, Naresh
- Environmental Implications of Pancheshwar Dam in Uttarakhand (Central Himalaya), India
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Authors
Affiliations
1 Department of Environment Science, VCSG University of Horticulture and Forestry, Bharsar, Uttarakhand 246 123, IN
2 Department of Earth and Environmental Science, IISER-Mohali, Mohali 140 306, IN
3 National Centre for Seismology, Ministry of Earth Sciences, Lodhi Road, New Delhi 110 003, IN
4 School of Media and Communication Studies, Doon University, Dehradun 248 001, IN
5 Physical Research Laboratory, Ahmedabad 380 009, IN
1 Department of Environment Science, VCSG University of Horticulture and Forestry, Bharsar, Uttarakhand 246 123, IN
2 Department of Earth and Environmental Science, IISER-Mohali, Mohali 140 306, IN
3 National Centre for Seismology, Ministry of Earth Sciences, Lodhi Road, New Delhi 110 003, IN
4 School of Media and Communication Studies, Doon University, Dehradun 248 001, IN
5 Physical Research Laboratory, Ahmedabad 380 009, IN
Source
Current Science, Vol 116, No 9 (2019), Pagination: 1483-1489Abstract
The present study outlines major concerns and potential environmental consequences of the proposed Pancheshwar high dam in Uttarakhand (Central Himalaya), India. We evaluate the risks associated with the project in the light of environmental impact observed for the Tehri project in the region and the geological understanding developed over the years. Three major factors and their likely impacts analysed relate to (i) sediment mobilization from glacial–paraglacial zones and unstable slopes, (ii) infrastructure development, and (iii) seismicity. We highlight the need to reassess geo-environmental implications of the project in the ecologically sensitive Kaliganga valley.Keywords
Environmental Impact, Pancheshwar, Reservoir Draw Down Effect, Sediment Flux, Seismicity.Full Text
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Authors
Affiliations
1 Department of Basic and Social Sciences, College of Forestry, Ranichauri 249 199, IN
2 Department of Geography, Institute of Science, Banaras Hindu University, Varanasi 221 005, IN
3 Department of Geology, HNB Garhwal University, Srinagar Garhwal 246 174, IN
4 Department of Geology, Centre for Advance Studies, University of Delhi, Delhi 110 007, IN
5 Department of History, VSKC, Govt PG College, Dakpatthar, Dehradun 248 125, IN
6 Geosciences Division, Physical Research Laboratory, Ahmedabad 380 058, IN
1 Department of Basic and Social Sciences, College of Forestry, Ranichauri 249 199, IN
2 Department of Geography, Institute of Science, Banaras Hindu University, Varanasi 221 005, IN
3 Department of Geology, HNB Garhwal University, Srinagar Garhwal 246 174, IN
4 Department of Geology, Centre for Advance Studies, University of Delhi, Delhi 110 007, IN
5 Department of History, VSKC, Govt PG College, Dakpatthar, Dehradun 248 125, IN
6 Geosciences Division, Physical Research Laboratory, Ahmedabad 380 058, IN
Source
Current Science, Vol 124, No 12 (2023), Pagination: 1384-1392Abstract
This study analyses the causes and consequences of slope instability around the historical Himalayan town of Joshimath, Uttarakhand, India. The town is in the Higher Himalaya near the Main Central Thrust. The lithology constitutes fissile, shattered and sheared gneiss. Consequently, the slopes are prone to land subsidence and mass wasting. In the last few decades rise in population has led to a surge of infrastructure development, thus causing immense pressure on the finite resources and limited accommodation space on precariously balanced vulnerable slopes. Particularly, the unplanned infrastructure development, lack of adequate drainage and excavation of roads through unstable debris slopes are some of the reasons that seem to have accelerated the ongoing slope instability and land subsidence.Keywords
Geological Fragility, Higher Himalaya, Historical Town, Land Subsidence, Slope Instability.Full Text
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