海洋学研究 ›› 2021, Vol. 39 ›› Issue (4): 109-122.DOI: 10.3969/j.issn.1001-909X.2021.04.011

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象山港牛鼻山水道潮流场的高频地波雷达观测与分析

作为LORCE计划中构建高频地波雷达观测网的试点，面向象山港牛鼻山水道，在六横岛郭巨山和白马礁各设置了1台OSMARS50高频地波雷达。在2台雷达合成表面流场有效区域的中间地带，利用Valeport旋桨式海流仪和ADCP定点开展了周日连续观测，以验证高频地波雷达合成表面流场的精度。对比定点流场和高频地波雷达对应数据发现，两者变化相关性较好，高频地波雷达在该点获得的流场有较高精度。借助SCHISM建立的区域模型结果，检验了高频地波雷达数据大面上的可用性。比较发现，观测和模拟值在大的趋势上是一致的：牛鼻山水道为规则半日潮流海域，M2是主要分潮，分潮M2和K1以往复流为主；涨潮时外海海水先通过牛鼻山水道流向象山港内，一段时间后再流向佛渡水道；落潮时象山港内海水率先经牛鼻山水道流出至外海，随后佛渡水道海水再逐渐流入牛鼻山水道。


  

  • 出版日期:2021-12-15 发布日期:2022-01-25
  • 通讯作者: 管卫兵(1968-)，男，研究员，主要从事海洋动力学方面的研究
  • 作者简介:何天祺(1996-)，男，浙江省杭州市人，主要从事海洋动力观测与模拟方面的研究，Email: 260164027@qq.com
  • 基金资助:
    浙江省自然科学基金项目(LY21D060003)；国家自然科学基金项目(42076216)；卫星海洋环境动力学国家重点实验室自主项目(SOEDZZ2003，SOEDZZ2101)；上海交通大学深蓝计划(SL2020ZD204)

HighFrequency ground wave radar observation and analysis of tidal current distribution in the Niubishan Channel of Xiangshangang Bay#br#

As the pilot of constructing HighFrequency(HF) ground wave radar observation network in LORCE plan, a pair of OSMARS50 HF ground wave radar was set up in Guojushan and Baimajiao of Liuheng Island, facing the Niubishan Channel of Xiangshangang Bay. To verify the accuracy of the synthesis surface current from HF ground wave radars, 25 hcontinuous observations were carried out using the Valeport Propeller Current Profiler and ADCP in the core of the effective area of this pair of HF ground wave radar. Comparison of currents shows a good correlation between data from the fixedpoint current and the HF ground wave radars, which suggests that currents obtained by the HF surfacewave radars at this point have a relatively high accuracy. At the same time, the availability of the HF ground wave radar data in large region is also tested by simulated results using a regional model established by SCHISM. Results show that the observation and simulation are consistent in the general trend: the Niubishan Channel is a regular semidiurnal tidal area, and M2 is the main tidal component, while the semidiurnal tidal component M2 and full diurnal tidal component K1 are mainly reciprocating currents. During flood tide, the sea water flows to the interior of Xiangshangang Bay first through the Niubishan Channel, and then to the Fodu Channel after a period of time. During ebb tide, the sea water in Xiangshangan Bay first flows out to the sea through the Niubishan Channel, and then the sea water from Fodu Channel gradually flows into the Niubishan Channel.#br#

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  • Online:2021-12-15 Published:2022-01-25

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摘要： 作为LORCE计划中构建高频地波雷达观测网的试点，面向象山港牛鼻山水道，在六横岛郭巨山和白马礁各设置了1台OSMARS50高频地波雷达。在2台雷达合成表面流场有效区域的中间地带，利用Valeport旋桨式海流仪和ADCP定点开展了周日连续观测，以验证高频地波雷达合成表面流场的精度。对比定点流场和高频地波雷达对应数据发现，两者变化相关性较好，高频地波雷达在该点获得的流场有较高精度。借助SCHISM建立的区域模型结果，检验了高频地波雷达数据大面上的可用性。比较发现，观测和模拟值在大的趋势上是一致的：牛鼻山水道为规则半日潮流海域，M2是主要分潮，分潮M2和K1以往复流为主；涨潮时外海海水先通过牛鼻山水道流向象山港内，一段时间后再流向佛渡水道；落潮时象山港内海水率先经牛鼻山水道流出至外海，随后佛渡水道海水再逐渐流入牛鼻山水道。

关键词: LORCE计划, 牛鼻山水道, 高频地波雷达, 潮流

Abstract: As the pilot of constructing HighFrequency(HF) ground wave radar observation network in LORCE plan, a pair of OSMARS50 HF ground wave radar was set up in Guojushan and Baimajiao of Liuheng Island, facing the Niubishan Channel of Xiangshangang Bay. To verify the accuracy of the synthesis surface current from HF ground wave radars, 25 hcontinuous observations were carried out using the Valeport Propeller Current Profiler and ADCP in the core of the effective area of this pair of HF ground wave radar. Comparison of currents shows a good correlation between data from the fixedpoint current and the HF ground wave radars, which suggests that currents obtained by the HF surfacewave radars at this point have a relatively high accuracy. At the same time, the availability of the HF ground wave radar data in large region is also tested by simulated results using a regional model established by SCHISM. Results show that the observation and simulation are consistent in the general trend: the Niubishan Channel is a regular semidiurnal tidal area, and M2 is the main tidal component, while the semidiurnal tidal component M2 and full diurnal tidal component K1 are mainly reciprocating currents. During flood tide, the sea water flows to the interior of Xiangshangang Bay first through the Niubishan Channel, and then to the Fodu Channel after a period of time. During ebb tide, the sea water in Xiangshangan Bay first flows out to the sea through the Niubishan Channel, and then the sea water from Fodu Channel gradually flows into the Niubishan Channel.

Key words: LORCE plan, Niubishan Channel, Highfrequency (HF) ground wave radar, tidal current

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