混合坐标大洋环流模式Hycom的坐标选取与参数化设置敏感性试验-海洋预报

混合坐标大洋环流模式Hycom的坐标选取与参数化设置敏感性试验

单位：61741部队, 北京, 100081

分类号：P731

出版年·卷·期（页码）：2008·25·第三期（93-102）

摘要：

在移植并拓展建立一个全球范围Hycom模式的基础上,针对混合坐标的选取和参数化设置设计了几组敏感性试验,初步揭示了选取不同的混合坐标和设置不同的参数值对模式模拟结果的影响。研究表明:混合坐标中的z坐标的设置差异对混合层的模拟影响较大;对混合坐标中的等密度坐标而言,前几层取值稍小些会提高模拟效果;动量耗散的辐散速度是影响模拟结果的重要参数。

On the basis of transplanting,spreading and establishing the hybrid coordinateoceanic circulation model for the whole world,this paper designs several different experimentsfor choosing the vertical coordinate and setting the parameters,discovers the effect ofchoosing the different vertical coordinate and setting the different parameters for the simulationresults. The results indicates that, the various of the setting of the z coordinate in theHycom affects the simulation of the mixing layer obviously;For the isopycnic coordinatesin the Hycom, choosing smaller value on the first several layers will increase the simulationresults;The diffusion velocity (m/s) for biharmonic momentum dissip is an very importantfactor for the simulation results.

参考文献：

[1] Chassignet E P.Smith L T.Bleck R,Bryan F O.A model comparison:Numerical simulations of the north and equatorial Atlantic oceanic circulation in depth and isopycnic coordinates.J Phys Oceanogr,1996,26:1849～1867.
[2] Roberts M J,Marsh R New A L,Wood R A,An intercomparison of a Bryan-Cox-type ocean model and an isopycnic ocean model,Part I:The subpolar gyre and high-latitude process.J Phys Oceanogr.1996,26:1495～1527.
[3] Marsh R,Roberts M J,Wood R A,New A L.An intercomparison ofa Bryan-Cox-type ocean model and an isopycnic ocean model,Part ll:The subtropical gyre and meridional heat transport.J Phys Oceanog,1996,26:1528～1551.
[4] New A,Bleck R,Jia Y,Marsh R,Huddleston M,Barnard S.An isopycnic model ofthe North Atlantic,Part I:Model Experiments.J Phys Oceanogr,1995,25:2667～2699.
[5] New A,Bleck R.An isopycnic model of the North Atlantic,Part ll:Interdeeadal variability of the subtropical gyre.J Phys Oceanogr,1995,25:2700～2714.
[6] Bleck R."Ocean Modeling in Isopyenic Coordinates"Ocean Modeling and Parametcrization.Chassignet E P,Verson J,eds.NATO Science Series C:Mathematical and Physical Science,Kluwer Academic Publishers,R 1998,516:4223～4488.
[7] Gaspar P.Modeling the seasonal cycle of the upper ocean.J Phys Oceanogr,1998,18:161～180.
[8] George R,Halliwell.Evaluation of vertical coordinate and vertical mixing algorithms in the HYbrid-Coordinate Ocean.Ocean Modclling,2004,7:285～322.
[9] 王骥鹏.混合坐标大洋环流模式Hycom研究及应用.解放军理工大学气象学院硕士学位论文,2006.

服务与反馈：

【文章下载】【发表评论】【查看评论】【加入收藏】