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遥感卫星显示九寨沟县漳扎镇周边滑坡多发

2017-08-10 08:34:37   

新华社北京8月9日电(记者董瑞丰)记者9日从中国科学院遥感与数字地球研究所获悉,通过对比评估四川九寨沟7.0级地震前后的遥感卫星影像,科研人员发现:震中附近的漳扎镇建筑物未见明显坍塌损毁;漳扎镇周边及景区滑坡多发,监测区内发现了多处滑坡及潜在滑坡体。

据了解,评估依据主要来自2017年1月15日高分一号卫星2米分辨率多光谱融合遥感影像,和2017年8月9日高分二号卫星4米分辨率多光谱/1米分辨率全色遥感影像。

8日四川九寨沟7.0级地震发生后,中科院遥感与数字地球研究所当晚第一时间启动灾害应急响应预案,开展了震前历史数据查询和灾后数据编程获取等一系列的灾害应急监测响应工作。至9日上午,完成了法国SPOT-6卫星、美国LANDSAT-8卫星四川九寨沟震区历史数据产品生产处理。

9日8时,遥感地球所所属中国遥感卫星地面站开始应急接收准备,至13时完成高分四号、高分二号卫星九寨沟震区卫星数据接收,数据接收成功率100%。

同时,遥感地球所积极与国内外卫星机构联系,提交紧急数据编程申请,使科研人员能够及时获得国内卫星数据,尽快开展灾害评估工作。

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