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在海岸带调查中,对于滩涂开阔的淤泥质海岸、大河河口地区和水下沙脊的分析研究,充分利用卫星象片,有其独特的好处.因为卫星象片现时性强,信息丰富,周期短,重复摄影,覆盖面积大,便于宏观和动态地研究问题.目前在江苏潮流沙脊群地区,低潮时露出水面的沙脊尚未进行地形图测绘工作.所以利用该地区的卫星象片进行分析研究更显得必要,尤其是沙脊的面积计算问题更为突出.
In the coastal zone survey, analyzing and studying the open muddy coast of the beach, the estuary area and the underwater sand ridge makes full use of the satellite imagery, which has its unique advantages. Because the satellite imagery is strong now, rich in information and short in cycle , Repeated photography, covering a large area, easy to macro and dynamic research issues.Currently in Jiangsu tidal sand cluster area, at low tide surface water ridge has not topographic mapping work.So the use of satellite images in the region for analysis Even more necessary, especially the calculation of the area of the sand ridge is more prominent.