Potential Hazard Map for Snow Disaster Prevention Using GIS-Based Weighted Linear Combination Analysis and Remote Sensing Techniques: A Case Study in Northern Xinjiang, China
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Author(s)
Snow disaster is one of the top ten natural
disasters worldwide. Almost every year, there will be snow disasters in
north Xinjiang, northwestern China. Since the accumulated heavy snow in
winter season will seriously threaten people’s lives, the main object of
this study is to produce a potential hazard map for snow avalanche
prevention. Taking three snow seasons from November to March of year
2008 to 2010, potential hazard areas were estimated, based on snow
volume products and terrain features. Remote sensing (RS) techniques and
geographical information system (GIS) based weighted linear combination
(WLC) approach were applied, taking into consideration multiple
criteria. Snow avalanche risks were analyzed using physical exposure and
vulnerability indexes. The analysis indicates that: the areas at
high-risk of avalanches are located in the north and south part of the
counties of Altay, Bortala and Ili prefectures; the areas at medium-risk
of avalanches are found in the certain part of Altay prefecture and
Urumqi, Changji, Tacheng prefectures; the avalanche risk is generally
low throughout the large area to the certain part of the study area and
the region on the border of the eastern north Xinjiang. Overall, the
risks of snow avalanche in Altay and Ili prefectures are higher than
that other regions; those areas should be allocated correspondingly more
salvage materials.
Cite this paper
Abake, G. , Al-Hanbali, A. , Alsaaideh, B. and
Tateishi, R. (2014) Potential Hazard Map for Snow Disaster Prevention
Using GIS-Based Weighted Linear Combination Analysis and Remote Sensing
Techniques: A Case Study in Northern Xinjiang, China. Advances in Remote Sensing, 3, 260-271. doi: 10.4236/ars.2014.34018.
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