Towards a global SAR-based flood mapping service
Towards a global SAR-based flood mapping service
复制标题
迈向基于 SAR 的全球洪水测绘服务
DOI：
10.1109/igarss.2014.6946944
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
G. Strunz
中科院分区：
文献类型：
--
作者：
S. Martinis;A. Twele;S. Voigt;G. Strunz
这项工作提出了一个全自动的TerraSAR-X为基础的服务，在全球范围内近实时洪水检测。与快速制图界普遍采用的半自动洪水探测方法相比，自动处理链能够缩短从洪水事件后提供卫星数据到向应急管理和决策者提供卫星衍生危机信息（即洪水范围）的关键时间跨度。关于精度和计算工作量，150个不同的TerraSAR-X场景在洪水期间获得的数据集上进行的实验，在世界各地不同的传感器配置确认建议的洪水映射服务的鲁棒性和有效性。通过对德国、泰国和阿尔巴尼亚/黑山的三个研究中心进行深入验证，进一步证实了这些结果。
This work presents a fully-automatic TerraSAR-X-based service for near real-time flood detection at a global level. Compared to semi-automatic flood detection approaches commonly applied in the rapid mapping community, automatic processing chains allow to reduce the critical time-span from the delivery of satellite data after flood events to the provision of satellite-derived crisis information (i.e. flood extent) to emergency management and decision makers. With respect to accuracy and computational effort, experiments performed on a data set of 150 different TerraSAR-X scenes acquired during flood situation all over the world with different sensor configurations confirm the robustness and effectiveness of the proposed flood mapping service. These results have been further confirmed by means of an in-depth validation performed for three study sites in Germany, Thailand, and Albania/Montenegro.