LICOM模式中不同混合方案的比较研究
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摘要
在LICOM模式中,分别使用2种不同的海洋内部垂直混合方案,对气候平均态全球大洋环流进行了数值模拟试验。试验结果的分析比较表明,在添加F方案之后,对全球大洋,尤其是对中高纬度海域的中层水和深层水的温盐状态的模拟有显著的改进;对北冰洋中层水的核心温度及其所在深度的模拟有较大的改进。但是在本文中对于次表层水的模拟在添加F方案后结果欠佳。
In the framework of the LICOM(LASG/IAP Climate System Ocean Model),by using two schemes of vertical mixing in the ocean respectively which is the turbulence mixing scheme and adding the inertial internal wave breaking mixing scheme put forward recently the climatic type experiments of the ocean general circulation model over the global ocean are performed.The comparison and analysis of the experiment results indicate that a notable improvement in the simulation of salinity and temperature over the global ocean is attained by using T-scheme adding F-scheme,especially in the mid-and high-latitude regions in the simulation of the Intermediate Water and Deep Water;and a great amelioration in the simulation of the Atlantic Water Core Temperature(AWCT)and its depth in the Arctic Ocean is obtained.However,a shortcoming in F-scheme is that in this paper the error of simulated salinity and temperature by using T-scheme adding F-scheme is larger than that by using T-scheme alone in the subsurface layer.
In the framework of the LICOM(LASG/IAP Climate System Ocean Model),by using two schemes of vertical mixing in the ocean respectively which is the turbulence mixing scheme and adding the inertial internal wave breaking mixing scheme put forward recently the climatic type experiments of the ocean general circulation model over the global ocean are performed.The comparison and analysis of the experiment results indicate that a notable improvement in the simulation of salinity and temperature over the global ocean is attained by using T-scheme adding F-scheme,especially in the mid-and high-latitude regions in the simulation of the Intermediate Water and Deep Water;and a great amelioration in the simulation of the Atlantic Water Core Temperature(AWCT)and its depth in the Arctic Ocean is obtained.However,a shortcoming in F-scheme is that in this paper the error of simulated salinity and temperature by using T-scheme adding F-scheme is larger than that by using T-scheme alone in the subsurface layer.
引文
[1]刘又毓,范植松.大洋细结构混合参数化方法在世界大洋环流模式中的应用[J].中国海洋大学学报(自然科学版),2005,35(4):534-538.
[2]Canuto V M,Howard A,Cheng Y,et al.Ocean turbulence.Part I:one point closure model,momentum and heat vertical diffusivities[J].J Phys Oceanogr,2001,31:1413-1426.
[3]Canuto V M,Howard A,Cheng Y,et al.Ocean turbulence.Part II:vertical diffusivities of momentum,heat,salt,mass and passive scalars[J].J Phys Oceanogr,2002,32:240-264.
[4]Canuto V M,Howard A,Cheng Y,et al.Ocean turbulence,III:new GISS vertical mixing scheme[J].Ocean Modelling,2010,34:70-91.
[5]Alford M,Cronin M,Klymak J.Annual cycle and depth penetration of wind-generated near-inertial internal waves at Ocean Station Papa in the Northeast Pacific.[J]J Phys Oceanogr,2012,42:889-909.
[6]Xu Z H,Yin B,Hou Y,et al.Variability of internal tides and near-inertial waves on the continental slope of the northwestern South China Sea[J].J Geophys Res Oceans,2013,118,1-15doi:10.1029/2012JC008212.
[7]Fan Z,Shang Z,Zhang S,et al.A parameterization scheme of vertical mixing due to inertial internal wave breaking in the ocean general circulation model[J].Acta Oceanologica Sinica,2015,34(1):11-22,doi:10.1007/s13131-015-0591-1.
[8]刘海龙,俞永强,李薇,等.LASG/LAP气候系统海洋模式(LICOM1.0)参考手册[M].北京:科学出版社,2004:107.
[9]Eriksen C C.Some characteristics of internal gravity waves in the equatorial Pacific[J].J Geophys Res,1985,90(C4):7243-7255.
[10]Boyd T J,Luther D S,Knox R A,et al.High-frequency internal waves in the strongly sheared currents of the upper equatorial Pacific:Observations and a simple spectral model[J].J Geophys Res,1993,98(C10):18089-18107.
[11]Jochum M,Briegleb B P,Danabasoglu G,et al.The impact of oceanic near-inertial waves on Climate[J].J Climate,2013,26:2833-2844.
[12]Danabasoglu G,Large W G,Briegleb B P.Climate impacts of parameterized Nordic Sea overflows[J].J Geophys Res,2010,115:C11005,doi:10.1029/2010JC006243.
[13]Danabasoglu G,Yeager S G,Kwon Y-O,et al.Variability of the Atlantic meridional overturning circulation in CCSM4[J].J Climate,2012,25:5153-5172.
[14]Polyakov I V,Aleskseev G V,Timokhov L A,et al.Variability of the intermediate Atlantic water of the Arctic Ocean over the last 100years[J].J Climate,2004,17:4485-449.
[15]李淑江.北冰洋中层水的分布、变化及其动力过程的研究[D].青岛:中国海洋大学,2008.
[16]李翔.北冰洋中层水的数值模拟研究[D].青岛:中国海洋大学,2012.
[2]Canuto V M,Howard A,Cheng Y,et al.Ocean turbulence.Part I:one point closure model,momentum and heat vertical diffusivities[J].J Phys Oceanogr,2001,31:1413-1426.
[3]Canuto V M,Howard A,Cheng Y,et al.Ocean turbulence.Part II:vertical diffusivities of momentum,heat,salt,mass and passive scalars[J].J Phys Oceanogr,2002,32:240-264.
[4]Canuto V M,Howard A,Cheng Y,et al.Ocean turbulence,III:new GISS vertical mixing scheme[J].Ocean Modelling,2010,34:70-91.
[5]Alford M,Cronin M,Klymak J.Annual cycle and depth penetration of wind-generated near-inertial internal waves at Ocean Station Papa in the Northeast Pacific.[J]J Phys Oceanogr,2012,42:889-909.
[6]Xu Z H,Yin B,Hou Y,et al.Variability of internal tides and near-inertial waves on the continental slope of the northwestern South China Sea[J].J Geophys Res Oceans,2013,118,1-15doi:10.1029/2012JC008212.
[7]Fan Z,Shang Z,Zhang S,et al.A parameterization scheme of vertical mixing due to inertial internal wave breaking in the ocean general circulation model[J].Acta Oceanologica Sinica,2015,34(1):11-22,doi:10.1007/s13131-015-0591-1.
[8]刘海龙,俞永强,李薇,等.LASG/LAP气候系统海洋模式(LICOM1.0)参考手册[M].北京:科学出版社,2004:107.
[9]Eriksen C C.Some characteristics of internal gravity waves in the equatorial Pacific[J].J Geophys Res,1985,90(C4):7243-7255.
[10]Boyd T J,Luther D S,Knox R A,et al.High-frequency internal waves in the strongly sheared currents of the upper equatorial Pacific:Observations and a simple spectral model[J].J Geophys Res,1993,98(C10):18089-18107.
[11]Jochum M,Briegleb B P,Danabasoglu G,et al.The impact of oceanic near-inertial waves on Climate[J].J Climate,2013,26:2833-2844.
[12]Danabasoglu G,Large W G,Briegleb B P.Climate impacts of parameterized Nordic Sea overflows[J].J Geophys Res,2010,115:C11005,doi:10.1029/2010JC006243.
[13]Danabasoglu G,Yeager S G,Kwon Y-O,et al.Variability of the Atlantic meridional overturning circulation in CCSM4[J].J Climate,2012,25:5153-5172.
[14]Polyakov I V,Aleskseev G V,Timokhov L A,et al.Variability of the intermediate Atlantic water of the Arctic Ocean over the last 100years[J].J Climate,2004,17:4485-449.
[15]李淑江.北冰洋中层水的分布、变化及其动力过程的研究[D].青岛:中国海洋大学,2008.
[16]李翔.北冰洋中层水的数值模拟研究[D].青岛:中国海洋大学,2012.