海浪破碎对北太平洋海表面温度模拟的影响  

Effect of wave breaking on the sea surface temperature simulation in the North Pacific

作　　者：刘子龙[1] 史剑[1] 蒋国荣[1] 

机构地区：[1]解放军理工大学气象海洋学院,江苏南京211101

出　　处：《海洋科学》2017年第3期122-129,共8页Marine Sciences

基　　金：国家自然科学基金项目(41676014)~~

摘　　要：基于海浪模式WAVEWATCH Ⅲ模拟北太平洋海浪要素,结合NDBC浮标资料进行验证,发现模拟出的有效波高与浮标测量值具有很好的一致性。基于改进型白冠覆盖率耗散模型,利用海浪模式模拟出的有效波高、有效波周期和摩擦速度等海浪要素计算出单位面积水柱内因海浪破碎产生的湍动能通量。通过改变环流模式sbPOM湍动能方程的上边界条件,引入海浪破碎产生的湍动能通量,并探究海浪破碎对北太平洋海表面温度模拟的影响。研究表明,由于海浪破碎的引入,环流模式sbPOM对北太平洋海表面温度模拟的准确程度得到提升,这为大气模式提供一个准确的北太平洋下边界条件具有重要意义。In this paper, wave parameters in the North Pacific were simulated by the WAVEWATCH III and were combined with NDBC buoy data verification. We found that the simulated significant wave height is highly precise. Based on the modified model of whitecap coverage dissipation, turbulence kinetic energy （TKE） fluxes due to wave breaking were calculated using the simulated significant wave height, wave period, and friction velocity. The in- fluence of surface wave breaking could be introduced into ocean model sbPOM by modifying the existing surface boundary condition of the TKE equation and specifying its input. The effects of wave breaking on the SST simula- tion in the North Pacific were also investigated. The results indicated that wave breaking can improve the accuracy of the ocean model sbPOM on the North Pacific sea surface temperature simulation and it plays an important role in providing accurate lower boundary conditions in atmospheric models.

关 键 词：海浪破碎 海表面温度 WAVEWATCHⅢ sbPOM 

分 类 号：P732.7[天文地球—海洋科学]