摘要
Crisis and disaster management has become an important research field in GIS during recent years.Risk assessment and situation picture-related work are particularly important areas of interest.There are distinct phases in different crises;these can be roughly divided into mitigation,preparedness,response,and recovery.In this paper a general classification of methods in each phase is given with examples on recent or ongoing research projects.The framework is based on literature and experiences from crisis and disaster-related exercises.Three case studies are based on those exercises.The goal is to clarify the role and usability of various GI-supported methods in the crisis management process by outlining a theoretical framework and presenting examples of the developed methods.Continuously increasing amount of spatially related geographic information is a huge potential to the GI analysis and modeling methods;the concept of digital earth is the underlying mainstream that gives lots of promise to the research and development work in this field.