Capability evaluation for Long-term detection of surface current by portable HFSWR
- 海洋环境－已发表论文 
2013年1月29日至3月15日在台湾海峡西南部海域进行了OSMAR-S100便携式高频地波雷达与浮标观测海流数据的长周期对比试验,验证了雷达系统在探测海流方面的准确性、可靠性和稳定性.通过实测海流与雷达矢量流的复相关分析,选定3 m层的海流为对比代表层.试验期间实测流速为0.0~120.0 cm/s,雷达海流有效探测区内的矢量流流速、流向的观测误差较小,能够满足实时监测海洋表层流的需要,高精度区流速、流向的均方根误差分别为9.1 cm/s和24.8°,边缘区的均方根误差为13.3~24.8 cm/s和39.4°~39.6°,与国内外达到业务化运行要求的同类产品实际观测精度相当.In order to evaluate the capability of current measurement,verification tests of OSMAR-S100 portable HF radar system against in-situ measurements had been conducted during Jan. 29 and Mar. 15,2013. The comprehensive evaluation is concentrated on the depth of the current measured by the radar and the precision of the current measured by the radar in different area. The preliminary result suggests that the depth of current retrieved by the radar is 3. 0 m. The long-term vertification also confirms that the radar system can effectively retrieve the temporal and spatial variation of surface current in effective detection area,which meets the need of real-time sea monitoring. The error of the retrieved current is relatively small,with a root mean square error of 9. 1 cm / s( speed) and24. 8°( direction) in high precision area,and 13. 3 ~ 24. 8 cm / s and 39. 4° ~ 39. 6° in the other area,which is comparable to the same type of international radar system.