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本工作发展了一个用于研究热带海洋大气系统相互作用和ElNin~o/SouthernOs-cilation动力过程的混合型(hybrid)耦合模式,其中的大气部分为一个由一阶斜压模表示的自由大气和混合行星边界层所组成的简单热带大气模式(区域为热带太平洋:120°E~80°W,30°N~30°S;水平分辨率为2°×2°),海洋部分为大气物理研究所高分辨率自由表面热带太平洋环流模式(经纬圈方向水平分辨率分别为1°和2°,垂直方向分为不等距的14层)。两模式间的耦合是这样进行的:简单大气模式计算出海表风应力,热通量由松弛公式计算,淡水通量(蒸发与降水之差)由观测资料给定,它们一起作为海洋环流模式(OGCM)的强迫场;而OGCM计算出海表温度(SST),在其以外地区给定观测到的气候海表温度或陆地温度,作为大气模式的边界条件。本文给出采用逐日、同步耦合方案时模式对热带太平洋气候态模拟结果,表明未采用任何通量修正(fluxescorrection),耦合模式未出现气候漂移(climatedrift)现象,并且非常逼真地再现了热带太平洋气候态,特别是海表风场及相伴随的辐合带和降水、海表温度和流场及它们的季节变化。文中还进行?
This work has developed a hybrid coupling model for the study of the interaction of the tropical oceanic atmosphere and the El Nin ~ o / SouthernOs-cilation dynamic process, in which the atmosphere consists of a free atmosphere represented by a first-order baroclinic and A simple tropical atmospheric model consisting of a mixed planetary boundary layer (region of the tropical Pacific: 120 ° E-80 ° W, 30 ° N-30 ° S; horizontal resolution of 2 ° × 2 °) The high-resolution free-surface tropical Pacific circulation model (latitude and longitude horizontal resolution of 1 ° and 2 °, respectively, the vertical direction is divided into 14 layers). The coupling between the two modes is as follows: sea surface wind stress is calculated in simple atmospheric mode, the heat flux is calculated by the relaxation formula, and the freshwater flux (the difference between evaporation and precipitation) is given by observation data and together they are used as the ocean circulation mode OGCM); and OGCM calculates the sea surface temperature (SST) and gives the observed sea surface temperature or land temperature outside of it as the boundary condition for the atmospheric model. In this paper, we present the results of simulating the tropical Pacific climate using the daily-synchronous coupling scheme, indicating that no fluxescorrection is applied and the climactic phenomenon is not observed in the coupling mode, and the tropical Pacific climate is very vividly reproduced Especially the sea surface wind field and the associated convergence zone and precipitation, sea surface temperature and flow field and their seasonal changes. The text is also carried out?