首页> 中文期刊> 《海洋科学进展》 >Stokes漂流对北太平洋海表温度的影响研究

Stokes漂流对北太平洋海表温度的影响研究

         

摘要

Stokes drift has negligible impact on the upper ocean temperature field.This paper studies the influence of Stokes drift on the sea surface temperature by applying the Stokes drift calculated with WAVEWATCH Ⅲ wave model to the momentum equation of SBPOM.The results show that the simula-ted significant wave height is consistent with the measurement and the average correlation coefficient can be as high as 0.88.The distribution of Stokes draft in the North Pacific shows a zonal characteristic and with larger values at high latitude,which can reach 0.2 m/s.The effect of Stokes drift on the North Pacific sea surface temperature ranges from -2 ℃ to 1 ℃ and is bigger at high latitude than low latitude.In the Northwest Pacific the impact is up to -2 ℃,while lowest in the equatorial region.It is verified by Argo buoy data that the simulated sea surface temperature with Stokes drift effect taken into account is much closer to the observations,suggesting Stokes drift is necessary in sea surface temperature simulation.%Stokes漂流对上层海洋温度场具有不可忽视的影响,基于WAVEWATCH Ⅲ海浪模式模拟结果计算出Stokes漂流流速,将其引入到SBPOM模式的动量方程中以探究Stokes漂流对海表面温度的影响.结果表明,模拟有效波高与实测值保持较好的一致性,平均相关系数最大为0.88.北太平洋Stokes漂流的分布呈现出高纬度较大的带状特征,最大流速可达0.2 m/s.Stokes漂流对北太平洋海表面温度的影响在-2~1℃之间,高纬Stokes漂流影响作用大于低纬,其中太平洋西北海域影响最大,可达-2℃,赤道影响最小.通过Argo浮标资料验证,考虑Stokes漂流模拟的海表面温度更趋近于实测值,说明在海表面温度计算中,考虑Stokes漂流是必要的.

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