遥感影像反演的雾参数地区差异性分析

发布时间：2018-09-18 19:55

【摘要】：鉴于常规地面气象站雾预测预报主要依靠点状的地面观测数据,而基于遥感影像反演可获得面状的雾参数,其可为进一步详细探究不同地区雾发展过程中参数的变化规律提供一定的数据基础,以发生于2006年12月豫皖苏地区和2013年1月发生于中国京津冀地区的雾为研究对象,选取TERRA/MODIS数据和FY-3A/VIRR数据进行时序遥感影像的雾参数反演并对2个地区的雾参数动态变化及地区差异性进行分析。得到以下结论:2次雾具有一个相同特征,即夜晚雾能见度值高于白天雾能见度值;雾发展过程中,2次雾物理参数差异明显,与雾区所处的地理位置、自然环境及区域发展水平等有关。该次实验表明,遥感影像可宏观地描述雾的动态变化发展,可作为研究雾属性时区变化差异的数据源之一。
[Abstract]:In view of the fact that the prediction and prediction of fog in conventional surface weather stations mainly rely on spot surface observation data, the surface fog parameters can be obtained by inversion of remote sensing images, It can provide a certain data basis for further study on the variation of parameters in the process of fog development in different regions. The fog that occurred in December 2006 in Henan, Anhui and Jiangsu provinces and in January 2013 in Beijing, Tianjin and Hebei regions of China is taken as the object of study. TERRA/MODIS data and FY-3A/VIRR data are selected to retrieve fog parameters of temporal remote sensing images and the dynamic changes of fog parameters and regional differences in two regions are analyzed. It is concluded that the visibility value of the fog at night is higher than that of the fog during the day, and the physical parameters of the fog during the fog development are obviously different from the geographical location of the fog area. Natural environment and regional development level and so on. The experiment shows that remote sensing images can describe the dynamic changes of fog macroscopically and can be used as one of the data sources to study the temporal zone variation of fog attributes.
【作者单位】：中南大学地球科学与信息物理学院;国家卫星气象中心;
【基金】：国家自然科学基金面上项目(41675110) 湖南省教育厅科学研究开放平台项目(14K103) 中南大学教师研究基金项目(2014JSJJ002)
【分类号】：TP751

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