作　　者： ; ;

机构地区： 湖北省气象局

出　　处： 《武汉理工大学学报（交通科学与工程版）》 2003年第6期739-745,共7页

摘　　要： 利用三维原始方程模式 ,通过个例的数值模拟试验 ,考查了海陆分布、地形、太阳辐射、海 -气热通量对群岛海域低层中尺度风场结构和分布的影响 ,并作了海面风场的数值预报试验 .结果表明 ,在动力或热力因子强迫下 ,群岛海域低层风场的时、空分布发生显著变化 ,同恒定、均匀分布的天气尺度风场差别较大 .模式能合理地再现复杂群岛海域中尺度风场的特征 ,预报的海面风同观测接近 .提供的探空观测或天气尺度预报场 ,适合在群岛海域的海洋环境问题应用中使用 . A three-dimensional hydrostatic model (based on Pielke model) is used to examine the effects of complex terrain/sea-island distribution and thermodynamic processes such as air-sea heat flux and solar radiation on the mesocale structure and distribution of low-level wind fields by numerical experiments of three cases, and then used to make two experimental predictions. The results show that low-level wind exhibits obvious spatial and temporal variation forced by dynamical and thermodynamic processes (see Part 4) and have significant difference from synoptic uniform wind. The model can reproduce mesoscale features of marine wind fields and can predict the distributions of sea surface wind consistent with observation. If sounding data or predicted weather data are available, the model may be suitable to provide sea surface wind forecast in application of environmental problems for archipelagic waters.

关 键 词： 动力 热力强迫 数值试验 海面风 群岛海域

领　　域： [天文地球]