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| 1 | Preliminary Results of Assessing the Mixing of Wave Transport Flux Residualin the Upper Ocean with ROMS显示文摘The effects of the mixing of wave transport flux residual(Bvl) on the upper ocean is studied through carrying out the control run(CR) and a series of sensitive runs(SR) with ROMS model.In this study,the important role of Bvl is revealed by comparing the ocean temperature,statistical analysis of errors and evaluating the mixed layer depth.It is shown that the overestimated SST is improved effectively when the wave-induced mixing is incorporated to the vertical mixing scheme.As can be seen from the vertical structure of temperature 28℃ isotherm changes from 20 min CR to 35 m in SR3,which is more close to the observation.Statistic analysis shows that the root-mean-square errors of the temperature in 10 m are reduced and the correlation between model results and observation data are increased after considering the effect of Bvl.The numerical results of the ocean temperature show improvement in summer and in tropical zones in winter,especially in the strong current regions in summer.In August the mixed layer depth(MLD) which is defined as the depth that the temperature has changed 0.5℃ from the reference depth of 10 m is further analyzed.The simulation results have a close relationship with undetermined coefficient of Bvl,sensitivity studies show that a coefficient about 0.1 is reasonable value in the model. | SHI Yongfang WU Kejian YANG Yongzeng | 2016 | Journal of Ocean University of China2016，15，2： | 2 |
| 2 | Mechanism of sea ice formation based on comprehensive observation data in Liaodong Bay, China显示文摘Sea ice disaster is one of the principal natural hazards that affect some coastal areas of China,and the formation of ice cover in a wave field has important characteristics.However,analysis of the mechanism in which waves affect the thermodynamic process of sea ice is lacking,and the influence of waves is not taken into consideration in numerical models of sea ice,largely because of a lack of simultaneous observations of waves and sea ice.Using observational data of the sea ice cycle in the coastal waters of Liaodong Bay(China),we analyzed the characteristics of hydrology,meteorology,and sea ice thickness during the formation of sea ice,and explored the changes in the interrelationships among heat fluxes,waves,and sea ice under actual sea conditions.The results could provide a decision-making support as a reference to the establishment and improvement of China's early waming system to sea ice disasters,and the protection of ice drilling operations and production platform safety. | SHI Yongfang YANG Yongzeng TENG Yong SUN Meng YUN Shengjun | 2019 | Journal of Oceanology and Limnology2019，37，6： | 1 |
| 3 | 大洋涌浪耗散研究及模式应用的进展及主要问题显示文摘大洋中涌浪普遍存在且对大气-海洋之间的物理过程有较大影响,但目前对涌浪的耗散过程研究尚不充分。总结了关于涌浪传播和耗散的观测事实,着重指出利用遥感数据推进相关研究的可能性;同时分析可能的物理机制,并论述其在海浪模式中的应用及不足。通过梳理大洋涌浪耗散的研究进展,为今后开展涌浪相关研究提供依据。 | 毕凡 宋金宝 | 2016 | 海洋科学2016，40，9： | 1 |
| 4 | 波浪输运通量剩余量对上层海温的影响分析显示文摘提出了波浪输运通量剩余量BSMT在Princeton Ocean Model(POM)中的实现方式,探讨了BSMT的作用机制。BSMT对上层海洋有重要的影响,其作用效果与背景温度场的梯度密切相关。BSMT可使浅水区和黑潮附近区域的上50m层升温约0.1-0.3℃,且升温幅度与背景温度场的梯度及海浪过程密切相关。初步研究结果表明,BSMT作为温度控制方程驱动源项可以影响海洋上层结构,为进一步海浪-海流相互作用研究奠定了基础。 | 张铁成 杨永增 尹训强 石永芳 汪一航 | 2015 | 海洋科学进展2015，33，3： | 1 |
| 5 | Study on surface wave-induced mixing of transport flux residue under typhoon conditions显示文摘The transport flux residue of surface waves plays an important role in a variety of ocean phenomena,for example,the change in sea surface temperature(SST)and upper mixed layer profile that were studied in a series of recent papers.In the previous studies,its effect was discussed rigorously and fragmented based on numerical modeling.Here we propose a relatively comprehensive and simplified exposition of the wave transport flux residue,and focus on its influence under typhoon conditions with strong background current.An analogue Reynolds Number is presented for tentative comparison with wave-generated turbulence mixing,especially in the coastal area.Numerical results indicate that both overwhelming dynamical mixing processes can remarkably change the coastal environment,and should not be ignored consciously for further marine hazards assessment. | YANG Yongzeng SHI Yongfang YU Chencheng TENG Yong SUN Meng | 2019 | Journal of Oceanology and Limnology2019，37，6： | 1 |
| 6 | 基于观测资料的海浪与混合层深度相关性分析显示文摘从观测数据角度出发,考察海浪与上层海洋混合层深度的变化关系。采用卫星高度计和三套温度观测数据,利用改进的混合层深度提取方法,获得海洋混合层深度。简要分析了多年月平均的有效波高和混合层深度的空间分布特征及时间变化规律,并进一步分析了它们的相关性。二者直接相关性分析的结果表明,在南北半球的中纬度地区二者的相关系数较大,而赤道地区较小。滤除年周期的气候态月平均场后,计算的距平相关系数在赤道区域较小;但在太平洋东部、南部和南印度洋存在一个大值区。此外,进一步研究了有效波高和混合层深度年际距平的相关系数,其空间分布特征与二者的距平相关系数的分布特征类似。为探究混合层深度的影响因素,同时也分析了风场与混合层深度的相关系数。综合上述结果,海浪和上层海洋的混合层深度之间存在着一定的相关性,海浪过程是风输入能量向次表层海洋传播的一个重要途径。 | 石永芳 尹训强 杨永增 | 2016 | 海洋科学进展2016，34，1： | 0 |
| 7 | 集合平均方法的建立及海洋动力系统耦合作用的性质分析显示文摘不同海洋动力过程之间的相互作用决定了海洋系统内部的结构,外观表征上则反映了海洋动力要素的空间及剖面精细化分布与演变特征,海洋动力系统相互作用理论愈来愈成为支撑海洋耦合数值模式与数值预报发展的重要基础。不同于Reynolds尺度平均概念,基于局域平稳均匀统计意义下的集合平均可易于实现集合层级和系统划分。在此基础上提出了一种实用的集合平均方法,分析了不同海洋动力过程之间的相互作用机理,包括大尺度动力过程对中、小尺度过程的输运、剪切生成作用,以及后者对前者的混合作用。重点揭示了湍流、波动对涡旋/环流的输运通量剩余量主要分量所起的作用,探讨了波动强剪切生成湍流的能量贡献效应等性质,为海浪-海流耦合实用模块的研发及数据资料处理提供设计方法。 | 杨永增 孙盟 | 2021 | 海洋科学进展2021，39，2： | 0 |
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