Tectonic processes are major factors controlling landform development in tectonically active areas. In order to evaluate quantitative measurement of tectonic activities in the Alamarvdasht basin in the south of Iran, six different morphological indices including stream-gradient index (SL), drainage basin asymmetry (Af), hypsometric integral (Hi), valley floor width-valley height ratio (Vf), dra...

The main purpose of this study is to develop a statistical model prepare forest fire risk map using GIS. In eight important factors were used determining the such as land use/land cover type, slope, aspect, altitude, settlement, road, temperature and precipitation. analytic hierarchy process (AHP) was evaluate factors. Precipitation most risk. area has approximately 10.72% low risk, 28.21% mode...

Urban planning rules and considering land use regarding faults can change the consequences of natural hazard such as earthquake. Vulnerability risk is increasing in Region 1 because of existence of the north fault, steep slopes and continuous construction of high-rise buildings. It is clear that Region 1’s Master Plan shouldn’t be prepared without considering natural hazard such as ...

Abstract This study develops the theory of risk-averse importance sampling and explains its potential application to forest inventory estimation through use a heuristic simulation. When risk-producing elements landscape are known, strategy can be created that results in fewer samples high-risk areas. Our simulation shows for certain populations, highly effective at reducing both risk field crew...