多源空间信息技术在全国水文应急演练中的应用

快速有效地处置突发自然灾害依赖于相关职能机构的应急监测技术能力,多空间多时相的高精技术运用则为应急监测提供了强有力支撑。本文简要介绍了多源空间技术基本原理和作业方法,以长江委水文上游局在2015年全国水文应急演练为例,对木洞河流域高危水文应急现场进行了应急监测及数据处理。演练方案评价表明,基于多源空间技术进行水文应急监测,对监测精度和抢险救灾处置效率有较大提高。

Application of Multi-source Spatial Technology in the National Hydrological Emergency Drills

Dealing with natural disaster fast and effectively depends on the emergency monitoring techniques of rele-vant public institutions,and multi-space and multi-temporal techniques provide powerful support for emergency monito-ring.Based on the National Hydrology Emergency Drill of the upper Changjiang river bureau of hydrological and water re-sources survey during 2015,the basic principles and operation methods of multi-source space technology are introduced briefly,taking MuDong River basins hydrological emergency scene with high-risk as an example,emergency monitoring, data processing and comparative study with traditional methods are carried out.The results showed that the precision of monitoring and the efficiency for disaster relief could be significantly increased with multi-source space technology used for hydrographic emergency monitoring.