000012965 001__ 12965
000012965 037__ $$a1324
000012965 041__ $$aEnglish
000012965 100__ $$aBajracharya, B.
000012965 100__ $$aShrestha, A. B.
000012965 100__ $$aRajbhandari, L.
000012965 245__ $$aGlacial lake outburst floods in the Sagarmatha region: Hazard assessment using GIS and hydrodynamic modeling
000012965 260__ $$c2007
000012965 260__ $$b
            
000012965 490__ $$aArticle
000012965 507__ $$aMFOLL
000012965 520__ $$aGlacial lake outburst floods (GLOFs) are common natural hazards in the Himalaya.  These floods, usually of large magnitude, can severely affect fragile mountain ecosystems and their limited economic activities. In this study, GLOF hazard in the Sagarmatha region (national park and buffer zone) was assessed using dam break and hydrodynamic modeling. The available data from the Dig Tsho GLOF of 1985 were used to validate many of the model outputs. The technique was further
applied to GLOF hazard assessment of Imja Lake, the largest and potentially most dangerous glacial lake in the region. The peak outflow discharge of an Imja GLOF is estimated at 5463 m3/s. The peak discharge attenuates to about 2000 m3/s at the boundary of the buffer zone at about 45 km from the outburst site. Finally, a GLOF vulnerability rating map was prepared and an assessment of vulnerable settlements was carried out.  The study was found to be a cost-effective means of obtaining preliminary information on the extent and
impact of possible GLOF events?information that is useful for developing plans for early warning systems and implementing management plans.
000012965 653__ $$adisaster
000012965 653__ $$aEverest
000012965 653__ $$aglacial lake outburst flood (GLOF)
000012965 653__ $$ahazard
000012965 653__ $$aHimalayas
000012965 653__ $$aNepal
000012965 650__ $$aHazards and disaster
000012965 650__ $$aGLOFs
000012965 691__ $$aHazards and disaster
000012965 691__ $$aGLOFs
000012965 773__ $$pMountain Research and Development Vol 27 No 4 Nov 2007: 336?344 doi:10.1659/mrd.0783
000012965 8564_ $$uhttp://lib.icimod.org/record/12965/files/1324.pdf
000012965 980__ $$aARTICLE