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在自然灾害应急救灾阶段,空间数据特别是对地观测数据可以起到极其重要的作用,如何在很短时间内实现多源异构的共享使用是在救灾中非常重要的问题。本文以2008年5月中国汶川特大地震救灾期间,国际组织向中国紧急提供援助的对地观测数据的管理和服务技术为例子,使用了数据网格结点来在短时间内构建了异构空间数据的聚合服务,证明了网格技术在自然灾害应急处理中的作用和使用模式。
In the natural disasters emergency relief phase, spatial data, especially earth observation data can play an extremely important role. How to realize the shared use of multi-source and heterogeneous in a very short time is a very important issue in disaster relief. Taking the management and service technology of the earth observation data that China urgently provided assistance to China during the disaster relief of China’s Wenchuan Earthquake in May 2008 as an example, this paper uses data grid nodes to construct heterogeneous space in a short period of time Data aggregation services, to prove the grid technology in natural disaster emergency response and use of the model.