基于Sentinel-1卫星数据快速提取鄱阳湖水体面积
Rapid Extraction of Water Area in Poyang Lake Based on Sentinel-1 Satellite Images
DOI: 10.12677/JWRR.2018.75054, PDF,  被引量   
作者: 黄 萍, 许小华, 李德龙：江西省水利科学研究院，江西 南昌
关键词: 卫星影像；鄱阳湖；水体面积；快速提取；Satellite Images； Poyang Lake； Water Area； Rapid Extraction
摘要: SAR数据具有对地观测的全天时、全天候等特点，对水体提取较为敏感的优势，是获取洪水淹没范围、评估洪水灾害灾情的有力工具。Sentinel-1A是欧洲宇航局哥白尼计划发射升空的第一颗环境监测卫星。根据雷达影像的成像原理，以2017年6月鄱阳湖区遭受暴雨前后Sentinel-1A获取的影像为例，运用阈值法和矢量叠加的方法，快速有效地提取出了湖区水体面积扩张范围，证明该方法简单、可行，能运用于洪水灾情评估工作，以期为Sentinel-1卫星数据在洪水灾害评估中的研究利用提供参考。
Abstract: Satellite data is a powerful tool to obtain flood inundated area and evaluate flood disaster, which has high sensitivity to extract water area at any time in day or night and under all weather conditions. Sentinel-1A, is as the first satellite in ESA’s Copernicus Programmer for monitoring environment. Based on the images taken by Sentinel-1A before and after rainstorm in Poyang Lake in June 2017, the water area is extracted quickly and effectively using the method of threshold and the superposition of the vector. It is proved that the method is simple and feasible, which can provide reference for the research and utilization of Sentinel-1 satellite data in flood disaster assessment.
文章引用：黄萍, 许小华, 李德龙. 基于Sentinel-1卫星数据快速提取鄱阳湖水体面积[J]. 水资源研究, 2018, 7(5): 483-491. https://doi.org/10.12677/JWRR.2018.75054

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