Climate and Water Cycle Modelling

气候和水循环建模

• 批准号: 11201208
• 负责人: SUMI Akimasa
• 金额: $ 30.59万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11201208/
• 关键词: Asian Monsoon; Water Cycle; GCM; Atmosphere-Land interaction; Surface flux; Mesomodel; 大気-陸面相互作用; GAME; メソ領域モデル; 対流-陸面相互作用; 山岳波; RAMS

In this project, various aspects of atmosphere-land interaction have been investigated. As the one-dimensional study, observed fluxes are compared with fluxes given by several models. As there exists biases in the observation, definite conclusion cannot be obtained. It may be difficult that this kind of comparison gives us a definite conclusion to the GCM.As the meso-scale model study, diurnal variation of precipitation over the Bankok has been investigated by using the 2-dimensional non-hydrostatic model. It is concluded that the midnight maximum of precipitation over the Bankok. is due to the eastward propagation of a squal line excited over the mountain slope westward to the Bankok. This study shows it is important to consider a detailed orography in the Monsoon Asia.For 3 dimensional GCM, 1998 Asian Monsoon was simulated and flux differences due to model horizontal resolutions were examined. With respect to monthly mean fluxes over the large domain (500km x 500km), these differences are small except for the southern part of the Himalaya mountain. It is concluded that only large-scale mountain can exert an influence to fluxes in the range of T42 and T106.

在这个项目中，已经研究了大气 - 土地互动的各个方面。作为一维研究，将观察到的通量与几种模型给出的通量进行了比较。由于观察中存在偏见，因此无法获得明确的结论。这种比较可能很难为GCM提供明确的结论。正如中等规模的模型研究，通过使用二维非静态模型研究了BANKOK降水的昼夜变化。得出的结论是，午夜的最大降水量在班克克上。是由于向西向西向Bankok的山坡上的一条肮脏线向东繁殖。这项研究表明，重要的是要在亚洲季风中考虑详细的地形。对于3维GCM，1998年的亚洲季风进行了模拟，并检查了由于模型水平分辨率而引起的通量差异。关于大型域（500公里x 500公里）上的每月平均通量，除了喜马拉雅山的南部，这些差异很小。结论是，只有大型山区才能对T42和T106范围内的通量产生影响。

项目成果

H. Tsujino, H. Hasumi, N. Suginohara: "Deep Pacific circulation controlled by vertical diffusivity at the lower thermocline depth"Journal of Physical Oceanography. 30. 2853-2865 (2000)

H. Tsujino、H. Hasumi、N. Suginohara：“温跃层下部垂直扩散率控制的深太平洋环流”物理海洋学杂志。

Satomura, T.: "Diurnal variation of precipitation over the Indo-China Peninsula : Two-dimensional numerical simulation"J.Meteor.Soc. Japan. 78. 461-475 (2000)

Satomura, T.：“中南半岛降水日变化：二维数值模拟”J.Meteor.Soc。

A.Oka, H.Hasumi, N.Suginohara: "Stabilization of thermohaline circulation by wind-driven and vertical diffusive salt transport"Climate Dynamics. (in press). (2001)

A.Oka、H.Hasumi、N.Suginohara：“风驱动和垂直扩散盐输送稳定温盐环流”气候动力学。

I.Takayabu,K.Takata,T.Yamazaki,K.Ueno. et al.: "Comparison of the four land surface models driven by a common forcing data prepared from GAME/Tibet POP'97 products-Snow accumulation and soil freezing processes-"Journal of Met.Soc.Japan. 79. 1B (2001)

I.Takayabu，K.Takata，T.Yamazaki，K.Ueno。

I. Takayabu, K. Takata, T. Yamazaki, K. Ueno, et al.: "Comparison of the four land surface models driven by a common forcing data prepared from GAME/Tibet POP'97 products - Snow accumulation and soil freezing processes"Journal of Met Soc. Japan. 79, 1B. (

I. Takayabu、K. Takata、T. Yamazaki、K. Ueno 等人：“由 GAME/Tibet POP97 产品准备的通用强迫数据驱动的四种陆地表面模型的比较 - 积雪和土壤冻结过程