灾害学Issue(1)：219-225,7.DOI:10.3969/j.issn.1000-811X.2016.01.040
基于历史案例的自然灾害灾情评估方法研究
Study on Evaluation Method of Natural Disaster Based on Historical Cases
摘要
Abstract
When a natural event was recognized as a disaster,damage assessment based on similarly historical cases rapidly in access to limited disaster data situation is effective support for analysis disaster and making disaster relief decision.In this paper,extracting indexes of historical and current disaster,establishing models of histories similarity judgment by the principle of minimum distance,and designing the assessment methods and technical processes based on disaster assessment model of historical case similarity.Then taking crops area affected drought of Henan Province as target,random selecting a similarity assessment model verified the feasibility of the technical scheme by using the historical drought disaster dataset of 2001-2006.The result showed that the relative accuracy is 98.45% and the credibility is higher.The plan of this paper is low cost,high efficiency,timeliness strong,sim-ple,less constraints and easy to implement.It has certain practical value and promotion prospects in disaster as-sessment.关键词
自然灾害/灾情评估/历史案例/最小距离原理Key words
natural disaster/assessment/historical cases/the Principle of Minimum Distance分类
资源环境引用本文复制引用
夏兴生,朱秀芳,潘耀忠,张锦水..基于历史案例的自然灾害灾情评估方法研究[J].灾害学,2016,(1):219-225,7.基金项目
国家“高分辨率对地观测系统”重大专项；国家青年自然科学基金“服务于快速理赔的农作物灾害损失遥感评估方法研究” （）
