摘要
赤道太平洋冷舌模拟偏低且过于西伸是一个共性问题。基于特征波参数化理论,利用美国国家环境预报中心(National Centers for Environmental Prediction,NCEP)再分析风场驱动海浪模式WAVEWATCHⅢ模拟所得的有效波高、波周期、波长等海浪要素,计算出海浪混合作用引起的垂直涡动动量系数和热混合系数,将其引入到SBPOM(Stony Brook Parallel Ocean Model)环流模式的动量控制方程中,由此探究海浪混合作用对热带海洋海表面温度模拟的影响。初步数值模拟研究结果表明,海浪混合作用的考虑,有效地改进了环流模式模拟热带海洋海表面温度偏低和赤道冷舌偏冷且过于西伸的现象,使得环流模式对热带海洋的模拟效果更好。
One of common problems of climate models is that the simulated sea surface temperature(SST)deviates noticeably from the observation in the tropics,such as the equatorial cold tongue in the eastern Pacific.Based on the theory of the parameterization of feature waves,the National Centers for Environmental Prediction(NCEP)reanalysis wind data were used to drive the WAVEWATCHⅢto simulate the process of ocean waves in the tropics,and significant wave height,wave period and wavelength can be obtained.These wave parameters were used to calculate the vertical vortex momentum coefficient and thermal mixing coefficient,which were introduced to the controlling equation of SBPOM(Stony Brook Parallel Ocean Model),and to explore the effects of non-breaking surface wave-induced vertical mixing on the SST simulation in the tropics.The simulation results showed that by considering the non-breaking surface wave-induced vertical mixing,the simulated SST in the tropics and the equatorial Pacific cold tongue were improved effectively,and the accuracy of simulated SST in the tropics has been enhanced.
作者
刘子龙
史剑
蒋国荣
肖林
LIU Zilong;SHI Jian;JIANG Guorong;XIAO Lin(College of Meteorology and Oceanography, People's Liberation Army (PLA) University of Science and Technology, Nanjing 211101, China)
出处
《热带海洋学报》
CAS
CSCD
北大核心
2017年第4期77-86,共10页
Journal of Tropical Oceanography
基金
国家自然科学基金(41676014)~~
关键词
海浪混合
WAVEWATCHⅢ
SBPOM
赤道冷舌
海表面温
wave-induced vertical mixing
WAVEWATCH Ⅲ
SBPOM
the equatorial Pacific cold tongue
sea surface temperature
