Risk management of sandstorm needs a systematic and practical improvement and lack of method for evaluating real-time quantitative meteorological factors in sandstorm risk research leads to that we can only provide real-time sandstorm monitoring result by satellite in weather service and can not got detailed real-time quantitative sandstorm risk assessment results.The lack limits efficient implementation of disaster prevention and mitigation work.We systematically classified sandstorm risk,divided the sandstorm disaster treatment as disaster prevention and disaster mitigation,defined the components of sandstorm risks in the two main courses,and last gave a real-time quantitatively diagnosing equation of sandstorms risk.Using the AHP analysis and cluster analysis methods,the sandstorm risk in Minqin of Gansu province was assessed based on this equation and the local meteorological data from June 1,2001 to November 15,2010.The assessment results showed that the sandstorm risk index ranged from 0.45 to 4.49 during this period,and the average sandstorm risk index was 1.99,and the most dangerous sandstorm occurred in April 24,2010.The result was completely consistent with the historical facts.It was proved that the quantitative equation of sandstorms risk assessment can give correct sandstorm risk assessment results,and it has a clear structure and simple calculation,so it is easy to work in meteorological services and to be popularized.
sandstormrisk levelanalytic hierarchy processcluster analysisHexi area
NETL
NSTL
万方数据
维普
