Submerged dunes and breakwater embayments mapped using wave inversions of shore-mounted marine X-band radar data
Submerged dunes and breakwater embayments mapped using wave inversions of shore-mounted marine X-band radar data
复制标题
使用岸上海洋 X 波段雷达数据的波浪反演绘制水下沙丘和防波堤海湾
DOI：
10.1109/igarss.2010.5652634
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
P. Bell
中科院分区：
文献类型：
--
作者：
P. Bell
勘测非常浅的沿海地区，特别是沿海防御周围的地区，可能是一个后勤困难且耗时的过程。在 LEACOAST2 项目期间，基于海洋雷达的测深测绘技术已用于远程绘制英格兰东南海岸 Sea Palling 一系列与海岸平行的防波堤周围的海湾。部署持续时间超过两年，目的是观察该时间尺度内测深特征的任何演变，同时清楚地表明导致这种演变的波浪和海流模式的空间变化。该地点由海岸平行防波堤产生的海湾已被解析，并且位于约 6-10m 水深的潮下沙丘场，其波长约为 200m，振幅约为 1m，位于雷达视场内，并且在遥感测深中很明显。使用传统测量技术和基于雷达的技术获得的测深数据之间的比较，以及使用相同遥感方法绘制的潮汐流测量结果，并与风暴事件期间的 ADCP 数据进行比较。
Surveying very shallow coastal areas, particularly around coastal defences, can be a logistically difficult and time consuming process. A marine-radar based bathymetry mapping technique has been used to remotely map the embayments around a series of shore-parallel breakwaters at Sea Palling on the south east coast of England during the LEACOAST2 project. The duration of the deployment spanned over 2 years, with the aim of observing any evolution of bathymetric features over that timescale while providing a clear indication of the spatial variability of wave and current patterns contributing to such evolution. The embayments generated by the shore parallel breakwaters at that site are resolved and a field of subtidal dunes with a wavelength of the order of 200m and amplitude around 1m located in approximately 6–10m of water were within the radar field of view and are evident in the remotely sensed bathymetry. Comparisons between bathymetric data obtained using conventional survey techniques and the radar based technique are presented together with measurements of tidal currents mapped using the same remote sensing method and compared with ADCP data during a storm event.