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首页> 外文会议>2011 International Conference on Remote Sensing, Environment and Transportation Engineering >Method for quickly delineating Merzbacher Lake extent based on Environment and Disaster Monitoring small satellite images
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Method for quickly delineating Merzbacher Lake extent based on Environment and Disaster Monitoring small satellite images

机译：基于环境与灾害监测小卫星图像的梅尔茨巴赫湖水域快速描绘方法

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The Merzbacher Glacial Lake located in the Sary Jaz-Kumarik River Basin has severe impacts on the environment and human well-being in downstream of the AKSU River in China. The Merzbacker Lake has flooded with increased frequency in recent years with the climate warming. It is vital to strengthen observation and monitoring of the Merzbacker Lake, especially by remote sensing data. Large portion by floating ice is the key issues of monitoring the lake. Based on the high temporal and spatial resolution Environment and Disaster Monitoring Satellite images, an improved method focused on threshold and mask technique were presented. Parts of the lake which is clear of ice was extracted mainly by Normalized Difference Water Index method. Parts of the lake covered by floating ice were relarively accurately extracted by using the Band B image of the HSV images. The area change information of Merzbacher Lake then were extracted by the post-processing of the areas in different periods. As an example, the changing areas series of Merbacher Lake in 2009 were analyzed. The results suggests that the date of the Merbacher Lake flood was around 30th July, and the flood lasted for no more than a week. The application indicates that the method can provid quick and relatively accurate monitoring of the lake flood, which is very import to construct forecasting and warning systems of Merzbacher Lake.
机译：位于Sary Jaz-Kumarik流域的Merzbacher冰川湖对中国AKSU河下游的环境和人类福祉造成了严重影响。近年来，随着气候变暖，默兹贝克湖（Merzbacker Lake）泛滥的频率越来越高。尤其是通过遥感数据，加强对默兹贝克湖的观察和监测至关重要。大部分的浮冰是监测湖泊的关键问题。基于高时空分辨率的环境与灾害监测卫星图像，提出了一种针对阈值和掩膜技术的改进方法。主要通过归一化差水指数法提取湖中无冰的部分。通过使用HSV图像的波段B图像，相对准确地提取了被浮冰覆盖的湖泊部分。然后通过对不同时期的区域进行后处理，提取出梅尔茨巴赫湖的区域变化信息。例如，分析了2009年默巴赫湖的变化区域系列。结果表明，Merbacher湖洪水发生的日期大约是7月30日，洪水持续了不超过一周的时间。应用表明，该方法可以快速，相对准确地监测湖泊洪水，对于构建梅尔茨巴赫湖预报预警系统具有重要意义。

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