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首页> 外文会议>Remote Sensing of the Marine Environment; Proceedings of SPIE-The International Society for Optical Engineering; vol.6406 >Study on seasonal variety of ocean color and delimitation between river and sea in Yellow River Estuary based on TM images
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Study on seasonal variety of ocean color and delimitation between river and sea in Yellow River Estuary based on TM images

机译：基于TM影像的黄河口海洋颜色季节性变化与江海分界。

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Using Landsat-5 TM image on November 24, 2004 and May 13, 2005; and quasi-synchronous surveyed data, the dynamic change of suspended silt and chlorophyll a in the Yellow River Estuary were inversed and the coastal line of this region was interpreted. The mean correlation coefficient between measured data and spectral signature value of every image is 0.85 which proved that the inversion is satisfying. The results show that there were different seasonal patterns between suspended silt and chlorophyll a. The concentration of suspended silt in the surface seawater in the estuary averaged 307.8mg/L in winter and 352.7mg/L in spring. While the Chlorophyll a concentration in the surface seawater averaged 0.71μg/L in winter and 0.59μg/L in spring. The surveyed data show one distinct boundary in concentration of suspended silt along the sampled stations. The reversed data from band1, band2, band3, band4 and band6 also show the same boundary at the same location.rnThe results of interpreting coastal line show that there is a rapid alteration in the Yellow River Estuary coastal line. Although in low or median water level period, with advance extent of the coastal line, there were prominent on the south shore beside the Laizhou Bay than the other places. Integrated with the practical measured data, by means of RS method, the study can get the same conclusion as the other methods did on judging boundary sign between River and Sea. So it also can be regarded as an efficient method to confirm boundary of River and Sea, and be the most available way to study dynamic state of coastal line of river mouth.
机译：在2004年11月24日和2005年5月13日使用Landsat-5 TM图像；并利用准同步调查资料，对黄河口悬浮泥沙和叶绿素a的动态变化进行了反演，并对该区域的海岸线进行了解释。实测数据与每幅图像的光谱特征值之间的平均相关系数为0.85，证明了反演是令人满意的。结果表明，悬浮粉砂和叶绿素a之间存在不同的季节变化规律。入海口地表海水中的悬浮粉尘浓度，冬季平均为307.8mg / L，春季平均为352.7mg / L。冬季表层海水中叶绿素a的平均浓度为0.71μg/ L，春季为0.59μg/ L。调查数据显示沿采样站的悬浮淤泥浓度有一个明显的边界。带1，带2，带3，带4和带6的反演数据在同一位置也显示出相同的边界。rn解释沿海线表明，黄河口沿海线有一个快速变化。尽管处于低水位或中位水位期，但随着沿海线的扩展，莱州湾旁的南岸比其他地方更为突出。结合实际测得的数据，利用RS方法，可以得出与其他方法判断江海边界标志的结论相同的结论。因此，它也被认为是确定江海边界的一种有效方法，是研究河口沿岸线动态状态的最有效方法。

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