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Characterization of spatial and temporal variation of suspended sediments in the Yellow and East China Seas using satellite ocean color data

机译：利用卫星海洋颜色数据表征黄海和东海悬浮沉积物的时空变化

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摘要

Total suspended sediment (TSS) data concentrations are retrieved from two sets of satellite ocean color data (the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard Aqua and the Korean Geostationary Ocean Color Imager (GOCI)) using an existing regional model to characterize spatial and temporal variation of TSS in the Yellow and East China Seas. MODIS-derived TSS maps show that TSS concentrations are, in general, high along the Korean and Chinese coasts including the Bohai Sea and the Yangtz River estuary, and lower in the middle of the Yellow Sea and the southeastern area of the East China Sea. The monthly average of 10-year MODIS data reveals that TSS values are highest during winter (January to February) and lowest in summer (July to August). Short-term TSS concentrations retrieved from GOCI data showed the dominant influence of semi-diurnal tidal changes on sediment dynamics through temporal (hourly) and spatial distribution in coastal zones of the Yellow sea. The results presented here demonstrate that the satellite-derived TSS products can be utilized as an application tool for future studies on long- and short-term sediment dynamics of turbid coastal waters. In particular, GOCI observations provide unique important capabilities to characterize and quantify the water properties at high temporal (hourly) and spatial (0.5 km) resolutions in the turbid coastal waters of the Yellow Sea and its vicinities.
机译：使用现有的区域模型来表征空间和时间特征，从两组卫星海洋颜色数据（Aqua上的中等分辨率成像光谱仪（MODIS）和韩国对地静止海洋颜色成像仪（GOCI））中获取总悬浮沉积物（TSS）数据浓度。黄海和东海海域TSS的变化来自MODIS的TSS图表明，总体而言，TSS浓度在包括渤海和长江河口在内的朝鲜和中国沿海地区较高，而在黄海中部和东海东南部地区较低。 10年MODIS数据的月平均值显示，TSS值在冬季（1月至2月）最高，而夏季（7月至8月）最低。从GOCI数据获得的短期TSS浓度显示，半日潮汐变化通过黄海沿岸地区的时间（每小时）和空间分布对沉积物动力学产生主要影响。此处提供的结果表明，卫星衍生的TSS产品可以用作将来对浑浊的沿海水域的长期和短期沉积物动力学进行研究的应用工具。尤其是，GOCI观测提供了独特的重要功能，可以以高时间（小时）和空间（0.5 km）的分辨率表征和量化黄海及其附近浑浊的沿海水域的水质。

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