Refine your search
Collections
Co-Authors
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Randhawa, S. S.
- Are the Himalayan Glaciers Retreating?
Abstract Views :203 |
PDF Views:94
Authors
I. M. Bahuguna
1,
B. P. Rathore
1,
Rupal Brahmbhatt
2,
Milap Sharma
3,
Sunil Dhar
4,
S. S. Randhawa
5,
Kireet Kumar
6,
Shakil Romshoo
7,
R. D. Shah
2,
R. K. Ganjoo
8,
Ajai
1
Affiliations
1 Space Applications Centre, Ahmedabad 380 015, IN
2 M. G. Science Institute, Ahmedabad 380 009, IN
3 School of Social Sciences, Jawaharlal Nehru University, Delhi 110 067, IN
4 Department of Geology, Government College, Dharamshala 176 215,, IN
5 State Council of Science and Technology, Shimla 171 009, IN
6 G.B. Pant Institute of Himalayan Environment and Development, Almorah 263 643, IN
7 Department of Earth Sciences, University of Kashmir, Srinagar 190 006, IN
8 Department of Geology, Jammu University, Jammu 180 006, IN
1 Space Applications Centre, Ahmedabad 380 015, IN
2 M. G. Science Institute, Ahmedabad 380 009, IN
3 School of Social Sciences, Jawaharlal Nehru University, Delhi 110 067, IN
4 Department of Geology, Government College, Dharamshala 176 215,, IN
5 State Council of Science and Technology, Shimla 171 009, IN
6 G.B. Pant Institute of Himalayan Environment and Development, Almorah 263 643, IN
7 Department of Earth Sciences, University of Kashmir, Srinagar 190 006, IN
8 Department of Geology, Jammu University, Jammu 180 006, IN
Source
Current Science, Vol 106, No 7 (2014), Pagination: 1008-1013Abstract
The Himalayan mountain system to the north of the Indian land mass with arcuate strike of NW-SE for about 2400 km holds one of the largest concentration of glaciers outside the polar regions in its high-altitude regions. Perennial snow and ice-melt from these frozen reservoirs is used in catchments and alluvial plains of the three major Himalayan river systems, i.e. the Indus, Ganga and Brahmaputra for irrigation, hydropower generation, production of bio-resources and fulfilling the domestic water demand. Also, variations in the extent of these glaciers are understood to be a sensitive indicator of climatic variations of the earth system and might have implications on the availability of water resources in the river systems. Therefore, mapping and monitoring of these freshwater resources is required for the planning of water resources and understanding the impact of climatic variations. Thus a study has been carried out to find the change in the extent of Himalayan glaciers during the last decade using IRS LISS III images of 2000/01/02 and 2010/11. Two thousand and eighteen glaciers representing climatically diverse terrains in the Himalaya were mapped and monitored. It includes glaciers of Karakoram, Himachal, Zanskar, Uttarakhand, Nepal and Sikkim regions. Among these, 1752 glaciers (86.8%) were observed having stable fronts (no change in the snout position and area of ablation zone), 248 (12.3%) exhibited retreat and 18 (0.9%) of them exhibited advancement of snout. The net loss in 10,250.68 sq. km area of the 2018 glaciers put together was found to be 20.94 sq. km or 0.2% (±2.5% of 20.94 sq. km).Keywords
Ablation, Glacier, Himalaya, Retreat, Snout.Full Text
- Permafrost Studies in Kullu District, Himachal Pradesh
Abstract Views :270 |
PDF Views:125
Authors
Affiliations
1 Department of Geography, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, CH
2 State Centre on Climate Change, State Council for Science, Technology & Environment, Himachal Pradesh, B-34 SDA Complex, Kasumpti, Shimla 171 009, IN
3 Aryabhatta Geo-informatics and Space Application Centre, Department of Environment, Science and Technology, Paryavaran Bhawan, US Club, Shimla 171 001, IN
4 Department of Geosciences, University of Fribourg, Chemin du Musée 4, 1700 Fribourg, CH
1 Department of Geography, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, CH
2 State Centre on Climate Change, State Council for Science, Technology & Environment, Himachal Pradesh, B-34 SDA Complex, Kasumpti, Shimla 171 009, IN
3 Aryabhatta Geo-informatics and Space Application Centre, Department of Environment, Science and Technology, Paryavaran Bhawan, US Club, Shimla 171 001, IN
4 Department of Geosciences, University of Fribourg, Chemin du Musée 4, 1700 Fribourg, CH
Source
Current Science, Vol 111, No 3 (2016), Pagination: 550-553Abstract
Collaborative Indo-Swiss research on permafrost has thrown new light on this rarely studied component of the Indian Himalayan cryosphere. Under a pilot study, first maps of estimated permafrost distribution in Kullu district, Himachal Pradesh, India have been produced, using a combination of simple topographic and climatic principles, more sophisticated numerical modelling, and mapping of permafrost indicators. Overall, 9% (420 sq. km) of the land area in Kullu is classified as permafrost terrain, extending down to as low as ~4200 m amsl in isolated instances. Between ~4200 and 5000 m amsl, permafrost underlies a surface area comparable in size to that overlaid by glacier ice. Hence, permafrost is identified as a significant component of the local cryosphere. These results now provide a scientific basis for assessing the wideranging potential impacts, hazards and risk associated with warming and thawing of frozen ground, with relevance for climate change adaptation studies across the entire Himalaya.Keywords
Ground Surface Temperature, Hazards, Permafrost, Rock Glacier.Full Text
- Trends of Snow Cover in Western and West-Central Himalayas during 2004–2014
Abstract Views :225 |
PDF Views:80
Authors
B. P. Rathore
1,
I. M. Bahuguna
1,
S. K. Singh
1,
R. M. Brahmbhatt
2,
S. S. Randhawa
3,
P. Jani
4,
S. K. S. Yadav
5,
A. S. Rajawat
1
Affiliations
1 Space Applications Centre (ISRO), Ahmedabad 380 015, IN
2 M. G. Science Institute, Ahmedabad 380 009, IN
3 State Centre on Climate Change, SCSTE, Shimla 171 009, IN
4 CEPT University, Ahmedabad 380 009, IN
5 Remote Sensing Applications Centre, Lucknow 226 021, IN
1 Space Applications Centre (ISRO), Ahmedabad 380 015, IN
2 M. G. Science Institute, Ahmedabad 380 009, IN
3 State Centre on Climate Change, SCSTE, Shimla 171 009, IN
4 CEPT University, Ahmedabad 380 009, IN
5 Remote Sensing Applications Centre, Lucknow 226 021, IN
Source
Current Science, Vol 114, No 04 (2018), Pagination: 800-807Abstract
The extent of snow cover on the earth is considered an important parameter for numerous climatological and hydrological applications. Snow cover dynamics in mountainous regions is a vital input for energy balance, glacier mass balance, climate change and snowmelt runoff modelling. There have been global efforts for monitoring of snow cover of earth at varying spatial and temporal scales by generation of snow products. Among these, one of the high temporal and spatial resolution datasets has been generated using advanced wide field sensor data for Western and West-Central Himalayan region at the Space Applications Centre, Ahmedabad. This is done using an algorithm developed based on normalized difference snow index. This paper discusses the trends of snow cover from 2004 to 2014 based on an input of approximately 12,600 snow cover products at sub-basin scale in Indus, Chenab, Satluj and Ganga basins. Analysis of snow cover shows high variability during accumulation than in ablation period. A subtle increase in snow cover was observed in all basins during 2004–2014.Keywords
Ablation, Accumulation, AWiFS, Snow Cover, NDSI, Western and West-Central Himalaya.Full Text
References
- Hall, D. K., Riggs, G. A. and Salomonson, V. V., Development of methods for mapping global snow cover using moderate resolution Image Spectroradiometer data. Remote Sensing Environ., 1995, 54, 127–140.
- Pepe, M., Brivio, P. A., Rampini, A., Rota Nodari, F. and Boschetti, M., Snow cover monitoring in Alpine regions using ENVISAT optical data. Int. J. Remote Sensing, 2005, 26, 4661–4667.
- Lemke, P. et al., Observations: changes in Snow, ice and frozen ground. In Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (eds Solomon, S. et al.), Cambridge University Press, Cambridge and New York, 2007, pp. 337–384.
- Wiscombe, N. J. and Warren, G. S., A model for spectral albedo of snow, I, pure snow. J. Atmos. Sci., 1981, 37, 2712–2733.
- Groisman, P. Y., Karl, T. R. and Knight, R. W., Observed impact of snow cover on the heat balance and the rise of continental spring temperatures. Science, 1994, 263, 198–200.
- Groisman, P. Y., Karl, T. R. and Knight, R. W., Changes of snow cover, temperature and relative heat balance over the Northern hemisphere. J. Climatol., 1994, 7, 1633–1656.
- Foster, J. L. and Chang, A. T. C., Snow cover. In Atlas of Satellite Observations Related to Global Change (eds Gurney, R. J., Parkinson, C. L. and Foster, J. L.), Cambridge University Press, Cambridge, 1993, pp. 361–370.
- Klein, A. G., Hall, D. K. and Nolin, A. W., Development of a prototype snow albedo algorithm for the NASA MODIS instrument. In 57th Eastern Snow Conference, 17–19 May 2000, Syracuse, NY, 2000, pp. 143–158.
- Jain, S. K., Goswami, A. and Saraf, A. K., Accuracy assessment of MODIS, NOAA and IRS data in snow cover mapping under Himalayan conditions. Int. J. Remote Sensing, 2008, 29, 5863–5878.
- Zhao, H. and Fernandes, R., Daily snow cover estimation from advanced very high resolution radiometer polar pathfinder data over northern hemisphere land surfaces during 1982–2004. J. Geophys. Res., 2009, 114, 1–14.
- Akyurek, Z. and Sorman, A. U., Monitoring snow-covered areas using NOAAAVHRR data in the eastern part of Turkey. Hydrol. Sci., 2002, 47, 243–252.
- Kulkarni, A. V., Mathur, P., Rathore, B. P., Alex, S., Thakur, N., and Kumar, M., Effect of global warming on snow ablation pattern in the Himalayas. Curr. Sci., 2002, 83(2), 120–123.
- Rathore, B. P. et al., Spatio-temporal variability of snow cover in Alaknanda, Bhagirathi and Yamuna sub-basins, Uttarakhand Himalaya. Curr. Sci., 2015, 108(7), 1375–1380.
- Kulkarni, A. V., Rathore B. P., Singh, S. K. and Ajai, Distribution of seasonal snow cover in central and western Himalaya. Ann. Glaciol., 2010, 51(54), 123–128.
- Singh, S. K., Rathore, B. P., Bahuguna, I. M. and Ajai, Snow cover variability in the Himalayan-Tibetan region. Int. J. Climatol., 2013, 34, 446–452; doi:10.1002/joc.3697.
- Rathore B. P., Kulkarni, A. V. and Sherasia, N. K., Understanding future changes in snow and glacier melt runoff due to global warming in Wangar gad sub-basin, India. Curr. Sci., 2009, 97(7), 1077–1081.
- Agarwal, K. G., Kumar, V. and Das, T., Melt runoff for a sub-basin of Beas sub-basin. In Proceedings of the First National Symposium on Seasonal Snow Cover, New Delhi, 28–30 April 1983, p. 43.
- Jain, S. K., Goswami, A. and Saraf, A. K., Snowmelt runoff modeling in a Himalayan basin with the aid of satellite data. Int. J. Remote Sensing, 2010, 31(24), 6603–6618.
- Kulkarni, A. V., Singh, S. K., Mathur, P. and Mishra, V. D., Algorithm to monitor snow cover using AWiFS data of RESOURCESAT for the Himalayan region. Int. J. Remote Sensing, 2006, 27(12), 2449–2457.
- Markham, A. L. and Barker, J. L., Thematic Mapper bandpass solar exoatmospheric irradiances. Int. J. Remote Sensing, 1987, 8(3), 517–523.
- Rubus, B. M., Eineder, M., Roth, A. and Bamler, R., The shuttle radar topography mission a new class of digital elevation models acquired by Space borne radar. ISPRS J. Photogramm. Remote Sensing, 2003, 57(4), 241–261.
- Elder, K., Dozier, J. and Michaelsen, J., Snow accumulation and distribution in an alpine watershed. Water Resour. Res., 1991, 27, 1541–1552.
- Fohn, P. and Meister, R., Distribution of snow drifts on ridge slope: measurements and theoretical approximations. Ann. Glaciol., 1983, 4, 52–57.
- Grunewald, T., Schirmer, M., Mott, R. and Lehning, M., Spatial and temporal variability of snow depth and ablation rates in a small mountain catchment. The Cryosphere, 2010, 4, 215–225; doi:10.5194/tc-4-215-2010.
- Lehning, M., Lowe, H., Ryser, M. and Raderschall, N., Inhomogeneous precipitation distribution and snow transport in steep terrain. Water Resour. Res., 2008, 44, W07404; doi:10.1029/2007WR006545.
- Luce, C., Tarboton, D. and Cooley, K., The influence of the spatial distribution of snow on basin-averaged snowmelt. Hydrol. Process., 1998, 12, 1671–1683.
- Mott, R., Schirmer, M., Bavay, M., Grunewald, T. and Lehning, M., Understanding snow-transport processes shaping the mountain snow-cover. Cryosphere, 2010, 4, 545–559; doi:10.5194/tc-4-545-2010.
- Raderschall, N., Lehning, M. and Schar, C., Fine scale modeling of the boundary layer wind field over steep topography. Water Resour. Res., 2008, 44, W09425; doi:10.1029/2007WR006544.
- Winstral, A., Elder, K. and Davis, R., Spatial snow modelling of wind-redistributed snow using terrain-based parameters. J. Hydrometeorol., 2002, 3, 524–538.