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首页> 外文期刊>Estuarine Coastal and Shelf Science >Multi-frequency SAR data help improving the monitoring of intertidal flats on the German North Sea coast
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Multi-frequency SAR data help improving the monitoring of intertidal flats on the German North Sea coast

机译：多频SAR数据有助于改善对德国北海沿岸潮间带的监测

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摘要

We demonstrate that Synthetic Apertur Radar (SAR) data have great potential to improve an existing monitoring system based on optical data for intertidal flats and to complement the classification of sediments, macrophytes, and mussels in the German Wadden Sea. Multi-satellite SAR data acquired at different radar bands (L, C, and X band, from ALOS PALSAR, from ERS SAR, Radarsat-2 and ENVISAT ASAR, and from TerraSAR-X, respectively) were used to investigate whether they can be jointly used for crude sediment classification on dry-fallen intertidal flats and for detecting benthic fauna such as blue mussel or oyster beds. In this respect, we show that both multi-satellite and multi-temporal analyses provide valuable input for the routine monitoring of exposed intertidal flats on the German North Sea coast, the latter already improving the identification of the spatial extent of mussel (oyster) beds. In addition, we demonstrate that high-resolution SAR is capable of detecting residuals of historical land use in areas that were lost to the sea during major storm surges in the 14th and 17th centuries.
机译：我们证明，合成孔径雷达（SAR）数据具有很大的潜力，可以改善基于潮间带光学数据的现有监测系统，并补充德国沃登海的沉积物，大型植物和贻贝的分类。使用在不同雷达频段（L，C和X频段，分别从ALOS PALSAR，ERS SAR，Radarsat-2和ENVISAT ASAR以及TerraSAR-X）获得的多卫星SAR数据来研究它们是否可以共同用于对干倒潮间的滩涂进行粗泥沙分类，并用于检测底栖动物，例如蓝贻贝或牡蛎床。在这方面，我们表明多卫星和多时间分析都为德国北海沿岸裸露的潮间带常规监测提供了有价值的输入，后者已经改善了对贻贝（牡蛎）床的空间范围的识别。此外，我们证明了高分辨率SAR能够检测出14世纪和17世纪暴风骤雨期间失去海洋的历史土地使用的残差。

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