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Landslide Investigation In Neelum and Jhelum Valleys, Kashmir, Pakistan

Landslide investigation in Neelum and Jhelum valleys, Kashmir, Pakistan


(University of Maryland, Baltimore County, U.S.A.)

 

Three differing data collection techniques were used at six sites. Slope movements were recorded at Hattian Bala and at Makri Bala; both of these sites pose potential hazards to surrounding communities. and more intensive data collection would be beneficial. The obtained data forms a baseline from which further measurements will be made. This along with further observations and mapping will provide us with an initial dataset of patterns of strain development across the landslide complexes. The observations indicated that the 2005 earthquake has allowed for the development of very large, active landslide systems that would remobilize during every large rainfall event. The impact of these landslides on the local community and infrastructure are likely to be severe and river valleys may become blocked. The consequence of an increase in landslide occurrence will be a marked increase in the production of sediment from the slopes. Downstream of the landslides there will be increased suspended sediment concentration through time. At present, there remains a large volume of sediment on the slope that is now disturbed but has not yet reached the fluvial system. The downstream consequences of increased sediment transport could be severe. A long-term strategy of mapping and investigation that is best achieved through collaboration between SUPARCO and the GSP, was suggested by the working group.

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A colour-coded (blue low, and yellow high) digital elevation map of Neelum, Jhelum and Kaghan valleys derived from NASA SRTM data.