Use of nautical radar as a wave monitoring instrument
Use of nautical radar as a wave monitoring instrument
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DOI：
10.1016/s0378-3839(99)00032-0
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发表时间：
1999-08-01
影响因子：
4.4
通讯作者：
Dittmer, J
中科院分区：
文献类型：
--
作者：
Borge, JCN;Reichert, K;Dittmer, J
常用的船用X波段雷达可以作为探测海浪场的传感器。雷达提供的波场图像由德国研究所GKSS开发的波浪监测系统（称为WaMoS II）进行采样和分析。该测量系统可以安装在船上。在海上站或在沿海位置。测量是基于来自海洋表面的微波的后向散射，这在雷达屏幕上是可见的“海杂波”。从这个可观察到的海杂波，进行了数值分析。可以得到明确的方向海浪谱、表面流和海况参数，如波周期、波长和波方向。为了提供绝对波高，必须校准航海雷达的响应。与合成孔径雷达的波高估计类似，所谓的“信噪比”导致有效波高（H-S）的确定。本文将WaMoS II结果与定向浮标数据进行比较，以显示航海微波雷达测量海况的能力。(C)1999 Elsevier Science B. V.保留所有权利。
Common marine X-Band radars can be used as a sensor to survey ocean wave fields. The wave field images provided by the radars are sampled and analysed by a wave monitoring system (called WaMoS II) developed by the German research institute GKSS. This measuring system can be mounted on a ship. on offshore stations or at coastal locations. The measurement is based on the backscatter of microwaves from the ocean surface, which is visible as 'sea clutter' on the radar screen. From this observable sea clutter, a numerical analysis is carried out. The unambiguous directional wave spectrum, the surface currents and sea state parameters such as wave periods, wave lengths, and wave directions can be derived. To provide absolute wave heights, the response of the nautical radar must be calibrated. Similar to the wave height estimations for Synthetic Aperture Radars, the so-called 'Signal to Noise Ratio' leads to the determination of the significant wave height (H-S). In this paper, WaMoS II results are compared with directional buoy data to show the capabilities of nautical microwave radars for sea state measurements. (C) 1999 Elsevier Science B.V. All rights: reserved.