Control of Terrain Parameters on Glacier Shrinkage Pattern in Pin Parbati Valley, Himachal Himalaya, India
The PCA (Principal Component Analysis) technique is used in evaluating the relationship between terrain parameters and old and new glacier surface area. The results indicate that the profile curvature shows a clear relationship with new glacier surface area development, whereas it does not show any relationship with the old glaciers surface area. It indicates that the new glaciers are being controlled by the terrain characteristics whereas the terrain characteristics have less control on the older glaciers surface. The correlation matrix between terrain characteristics of old and new glacier surface area also conforms to the results of principal component analysis.
The present study also shows a clear trend in glacier shrinkage between 1963 and 2001 in the Pin Parbati valley in Himachal Himalayas, India. Temporal change in glacier area indicates overall loss of 27% for the period 1963- 2001. The shrinkage of glacier varies with glacier size. The smaller glaciers show maximum shrinkage in comparison to the larger glaciers.
Allen, T.R. (1998). Topographic context of glaciers and perennial snowfields, Glacier National Park, Montona. Geomorphology, 21: 207-216.
Benn, D. I. and F. Lehmukuhl (2000). Mass balance and equilibrium-line altitudes of glaciers in high mountains environments. Quat. In, 65/66: 15-29.
Bishop, M., Bonk, R., Kamp, U. and F. Shroeder (2001). Terrain analysis and modeling for alpine glacier mapping. Polar Geogr., 25(3): 182-201.
Evans, I.S. (2006). Local aspect asymmetry of mountain glaciation: A global survey of consistency of favored directions for glacier numbers and altitudes. Geomorphology, 73: 166-184.
Kulkarni, A.V., Bahuguna, I.M., Rathore, B.P., Singh, S.K., Randhawa, S.S., Sood, R.K. and Sunil Dhar (2007). Glacial retreat in Himalaya using Indian Remote Sensing satellite data. Current Science, 92(1): 69-74.
Kulkarni, A.V. and Alex Suja (2003). Estimation of recent glacial variations in Baspa Basin using remote sensing techniques. J. Indian Soc. Remote Sensing, 31: 81-90.
Kulkarni, A.V., Rathore, B.P., Mahajan, S. and P. Mathur (2005). Alarming retreat of Parbati Glacier, Beas basin, Himachal Pradesh. Curr. Sci., 88: 1844-1850.
Lopez-Moreno, J.I., Nogues-Bravo, D., Chueca-Cia, J. and A. Julian-Andres (2006). Change of topographic control on the extent of cirque glaciers since the Little Ice Age. Geophysical Research Letters, 33: 1-5.
Lopez-Moreno, J.I., Nogues-Bravo, D., Chueca-Cia, J. and Julian-Andres (2006). Glacier development and topographic context. Earth Surface Processes Landforms, 31(12): 1585- 1594.