Risk assessment of snow disaster on county scale

The snow disaster is a meteorological disaster caused by multi-role factors. So far, there is no unified standard for snow risk assessment. Combining theories and views about meteorology, physical geography, disaster science, grassland science and many other subjects, the study applied Analytical Hierarchy Process (AHP) to establish index system and evaluation model of risk assessment about snow disaster under the existing and recognized formation mechanism of risk. With the evaluation model, the snow risk evaluation on county scale was condncted in China. The results show that it can provide a guidance for disaster prevention and reduction.