多时相中巴资源卫星遥感图像应用于钉螺孳生地水体监测  

Application of multi-temporal China-Brazil Earth Recourses Satellite-02 data on surveillance of dynamic changes of water body of rivers and Oncomelania snail habitats in Anxiang County

作　　者：姚保栋 王增亮 张志杰 田安平 朱绍平 胡本骄[3] 高风华[4] 汪奇志[4] 易平[3] 姜庆五 

机构地区：[1]复旦大学公共卫生学院流行病学教研室、复旦大学公共卫生学院公共卫生安全教育部重点实验室、复旦大学公共卫生学院空间分析与建模实验室、复旦大学公共卫生学院GIS培训中心,上海200032 [2]湖南省安乡县血吸虫病防治领导小组办公室 [3]湖南省血吸虫病防治所 [4]安徽省血吸虫病防治研究所

出　　处：《中国血吸虫病防治杂志》2012年第2期160-163,167,共5页Chinese Journal of Schistosomiasis Control

基　　金：国家自然科学基金(81102167;81172609);全国博士学位论文作者专项资金;高等学校博士学科点专项科研基金(20110071120040)

摘　　要：目的探讨基于多时相中巴资源卫星02星(CBERS 02)数据监测钉螺孳生地水体变化的可能性。方法收集湖南省安乡县2003 12 20、2004 02 10、2004 04 02、2004 06 19、2004 08 10和2004 10 27 6幅连续的双月间隔的CBERS 02影像,基于归一化水体指数提取各时相河流和洲滩水体,计算水域面积,确定遥感时相。结果安乡县河流和洲滩水体的动态变化基本符合"冬陆夏水"的规律,6月因为涨水,水域面积达到最大,8月开始下降,4月面积最小。丰水期和枯水期的遥感图像分别确定为6月和4月。结论多时相遥感数据可以动态监测河流和洲滩水体的变化,有助于正确选择丰水期和枯水期影像数据,为其他研究选择遥感图像提供了方法学参考。Objective To study the dynamic changes of the water body of rivers and Oncomelania snail habitats by using multi-temporal China-Brazil Earth Recourses Satellite-02 images taken in Anxiang County so as to establish the correct procedure for selecting images.Methods CBERS-02 images were collected on 20th December 2003,10th February 2004,10th April 2004,19th June 2004,10th August 2004 and 27th October 2004.Then the water body information from the study areas based on NDWI was extracted and the areas of water body were calculated to determine the images.Results The dynamic changes of the water body conformed to the rules of ＂water in summer and land in winter＂.Because of the rise of water,the water area in July was the biggest and the water area began to decline from August.The water area in April was the smallest.Then the wet season and the dry season should be June and April.Conclusion The multi-temporal CBERS-02 images could be used to surveillance the dynamic changes of the water area and helpful in choosing the right images of the wet season and dry season.

关 键 词：钉螺 中巴资源卫星02星 归一化差异水体指数 时间序列 环境监测 

分 类 号：R123.1[医药卫生—环境卫生学]