基于GeoMAG的地理信息数据规范方法探讨

采用青岛地区landsat-7ETM+的两时像遥感卫星影像以及相关的气象参数数据资料,利用单窗法和辐射传输方程法,对两幅不同时像的遥感数据进行温度反演,通过对NDVI、植被覆盖度、光谱分析、相关性分析、不透水面、下垫面的差异等进行分析并结合对当地实际的环境研究,讨论热岛效应的表现、温度等级分布和转移趋势,得出结论:研究区域的热岛效应显著,并且强度分布与该地区的工商业发展和居民区规模的扩大相关,随着城市化进程深入,向城乡交界处转移。

Study on Standard Method of Geographic Information Data Based on GeoMAG

By using two different remote sensing satellites in Qingdao area from LandsatCD*2]7 ETM+ and related meteorological parameter data, using single window method and radiative transfer equation method, temperature retrieval of remote sensing datas from two different images has been carried out. Through analysis on NDVI, vegetation coverage, spectral analysis, correlation analysis, impervious surface and differences of underlying surface, combining with local environment, discussing the performance of urban island, the temperature level of the distribution and transfer trend, it is concluded that urban island effect is significantly in research area. The intensity distribution has close relation with industrial and residential expansion. Accompanying with the process of urbanization, it will transfer to connection part of the urban and rural areas.