中文摘要：

intertidal 地区的暴露的区域与潮汐的水水平变化变化。如果卫星图象的 intercomparisons 是被采用，响应生长或侵蚀决定 intertidal 地区的 geomorphological 变化的一个方法处理，那么，水水平变化的效果必须被评估。在这研究，二 Landsat TM 想象通过中央江苏沿海的水在 1 月 2 日并且分别地， 2002 年 3 月 7 日被变化察觉分析用图象 Differencing 和分类以后的比较对待。来自沿着海岸的四个潮计量器车站的同时的潮水平数据被用于显示水层次的空间变化并且决定吃水线的举起。结果证明水层次的空间变化在中央江苏沿海的水里是高度重要的。在二成像时间之间的潮汐的陆地暴露模式的巨大的差别主要与潮汐的水层次的空间变化有关，它被差别在每成像时间在学习区域上在不同成像时间和水水平的空间变化在潮汐的阶段控制。在复杂潮汐的条件下面，例如，那些中央江苏沿海的水，潮巨浪模型应该被用来有效地在 intertidal 地区在 geomorphological 变化的遥感解释上消除水水平变化的效果。

英文摘要：

The exposed area of intertidal zone varies with tidal water level changes, If intercomparisons of satellite images are adopted as a method to determine geomorphological changes of the intertidal zone in response to accretion or erosion processes, then the effect of water level variations must be evaluated. In this study, two Landsat TM images overpassing the central Jiangsu coastal waters on 2 January and 7 March 2002, respectively, were treated by the changing detection analysis using Image Differencing and Post-classification Comparison. The simultaneous tide level data from four tide gauge stations along the coast were used for displaying the spatial variations of water levels and determining the elevations of waterlines. The results show that the spatial variations of water levels are highly significant in the central Jiangsu coastal waters. The huge differences of tidal land exposure patterns between the two imaging times are related mainly to the spatial variations of tidal water levels, which are controlled by the differences in tidal phases for different imaging times and the spatial variations of water level over the study area at each imaging time. Under complex tidal conditions, e.g., those of the central Jiangsu coastal waters, the tide-surge model should be used to eliminate effectively the effects of water level variations on remote sensing interpretation of geomorphological changes in the intertidal zone.