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论文在对Jason-2/OSTM GDRs数据特点、湖泊水位计算原理、测高数据编辑与处理过程进行详细阐述的基础上,以地处长江中游的南洞庭湖区为监测实例,对Jason-2卫星测高数据在陆地水域水位变化监测中的应用进行了试验研究。在同监测点距离最近的地面水文站实测水位的对比来看,二者监测结果间存在显著的线性相关关系,相关系数达0.974。表明基于Jason-2/OSTM GDR数据的水位监测结果具有较高的可信度,在陆地水域水位变化卫星监测中具有一定的现实可行性,从而为我国陆地水域水位变化监测提供了一种新的有效技术手段。
Based on the detailed description of Jason-2 / OSTM GDRs data, the calculation principle of lake water level and the editing and processing of altimeter data, taking the South Dongting Lake area located in the middle reach of the Yangtze River as an example, The application of high data in the monitoring of water level changes in terrestrial waters was studied. In comparison with the actual measured water level of the surface hydrological station nearest to the monitoring point, there is a significant linear correlation between the two monitoring results with a correlation coefficient of 0.974. It shows that the monitoring result of water level based on Jason-2 / OSTM GDR data has higher credibility and has some realistic feasibility in satellite monitoring of land water level variation, so as to provide a new kind of monitoring for water level change in terrestrial waters. Effective technical means.