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引用本文:齐述华,舒晓波,DanielBrown,姜鲁光.基于遥感和历史水位记录的鄱阳湖区淹没风险制图.湖泊科学,2009,21(5):720-724. DOI:10.18307/2009.0517
QI Shuhua,SHU Xiaobo,Daniel Brown,JIANG Luguang.Flooding hazard mapping for Poyang Lake Region with remote sensing and water level records. J. Lake Sci.2009,21(5):720-724. DOI:10.18307/2009.0517
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基于遥感和历史水位记录的鄱阳湖区淹没风险制图
齐述华1, 舒晓波1, DanielBrown2, 姜鲁光3
1.江西师范大学地理与环境学院, 南昌 330022;2.School of Natural Resources and Environment, University of Michigan, Ann Arbor, USA, 48109;3.中国科学院地理科学与资源研究所, 北京 100101
摘要:
提出了一种利用多时相遥感影像和历史水位观测资料,利用ArcGIS空间分析功能实现冲积平原区洪水风险制图的方法.首先利用9幅鄱阳湖区不同时相的Landsat TM/ETM+遥感影像,通过非监督分类的方法提取水体淹没范围.根据都昌水文站资料1955-2001年间水位记录,分别计算鄱阳湖洪水多发期(6,7,8月份)和全年各水位的超频率(EP).假设在相同水位条件下具有相同的淹没范围,将遥感获取的水体边界作为EP的等值线,在ArcGIS的支持下,利用等值线插值实现鄱阳湖区洪水多发期和全年的水体淹没风险制图.
关键词:  鄱阳湖  淹没风险制图  遥感  超频率
DOI:10.18307/2009.0517
分类号:
基金项目:国家自然科学基金项目(40801169);江西省科技厅项目“鄱阳湖湿地生态系统动态监测”;国家科技支撑项目(2007BAC23B05)
Flooding hazard mapping for Poyang Lake Region with remote sensing and water level records
QI Shuhua1, SHU Xiaobo1, Daniel Brown2, JIANG Luguang3
1.School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, P.R.China;2.School of Natural Resources and Environment, University of Michigan, Ann Arbor, USA, 48109;3.Institute of Geographic Science and Natural Resources Research, Chinese Academic of Science, Beijing 100101, P.R.China
Abstract:
Flooding is a natural calamity that can caused great loss. Flooding hazard mapping is an effective tool for managingflooding to reduce the destructivity. In this paper, we suggested a new method to map the flooding hazard for alluvial plain withmulti-temporal remote sensing images and lake level records. 9 images gained at different date for Poyang Lake Region were used topickup the inundation extent with different lake level, and the annual and monthly exceedance probability of lake level for Poyangwas estimated by sorting all lake level records. The boundary of inundation extent from remote sensing images was regarded asisolines valued as exceedance probability for the lake level happened on the image taken time. With the interpolation processprovided by ArcGIS software, the flooding hazard were mapped for Poyang Lake Region.
Key words:  Lake Poyang  flooding hazard mapping  remote sensing  exceedance probability
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