PROGRESS IN GEOGRAPHY ›› 1999, Vol. 18 ›› Issue (2): 158-162.doi: 10.11820/dlkxjz.1999.02.009

• Original Articles • Previous Articles     Next Articles

The application and model of grey association for evaluation of natural disaster

CHEN Ya ning, YANG Si quan   

  1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
  • Received:1998-11-01 Revised:1999-04-01 Online:1999-04-24 Published:1999-04-24

Abstract: The degree of association is a measurement of associativity among things or factors. In this paper, based on calculating the degree of association between the reference sequence U0 and the comparison sequence Ui of evaluation quotas of natural disaster, the model of grey association for evaluation of natural disaster is established and is applied to the disastrous degree evaluation of Xinjiang “96 7” floods. By using the model, the disastrous grade belonging of some regions in the Xinjiang “96 7” floods and the sequence of disastrous grade are made out. The results show: using the model of grey association for evaluation of natural disaster not only can avoid the arbitrariance of artificial judgement, but also can accord with the facts well. So, the model of grey association is a scientific and practical way to evaluate the disastrous condition of natural disaster.

Key words: evaluation model of disaster condition, grey association, natural disaster

CLC Number: 

  • X43