查询词典 frontogenesis

So, the perfect Q-vector divergence and the frontogenesis function are two important parameters in the process of diagnosing and forecasting the heary rain.

因而在暴雨的诊断和预报过程中完全Q矢量散度和锋生函数是两个重要的参数。

By means of WKBJ approach, the development of symmetric disturbances superposed on the background field of Hoskins-Bretherton frontogenesis model is investigated.

用WKBJ方法讨论了叠加在Hoskins-Bretherton变形场锋生模型背景上对称斜压波包的发展问题。

The development of symmetric disturbances superposed on the background field of Hoskins-Bretherton(1972)frontogenesis model is investigated by using the WKBJ approach.

文中用WKBJ方法讨论了叠加在Hoskins-Bretherton(1972)变形场锋生模型背景上对称斜压波包的发展问题。

Is there any factors that semigeostrophic theory has neglected is important? To answer this question, the numerical nonhydrostatic cloud model that takes consideration of frontogenesis of deformation field is used to investigate these problems.

利用考虑变形场作用的非静力云模式，我们对地面摩擦影响锋面结构和锋生、地形扰动与锋生的相互作用、湿物理过程对锋生的影响等诸方面问题进行了研究。

Some interesting results have been got. By means of WKBJ approach, the development of symmetric disturbances superposed on the background field of Hoskins-Bretherton frontogenesis model is investigated.

通过WKBJ方法研究锋生过程对锋区中尺度扰动发展的影响，结合半地转模拟结果对影响锋面附近中尺度扰动的因子进行了讨论。

The effect of surface friction on the structure of front and frontogenesis is investigated by using the cloud model in which the large-scale deformation field is taken into consideration.

利用加入大尺度变形场作用的非静力模式，研究了地面摩擦对锋生和锋面结构的影响，在变形场锋生条件下，对不同模式格距、不同湍流参数化方案、不同变形场强度、考虑与不考虑地面摩擦等情形进行了比较，在考虑地面摩擦拖曳作用后得到了类似重力流结构的边界层锋面特征。

Meanwhile the nonhydrostatic and high-resolution character and physical processes contained in the cloud model can be made use of. In this way some of the difficulties met in the fully description can be overcome. So we can investigate the effect of surface friction on the frontogenesis in the boundary layer in high-resolution nonhydrostatic model. The structure of the front obtained through this approach is consistent with the observation.

在高分辨率情况下研究了地面摩擦对边界层内锋生的作用，从而得出比较精细的、与实际观测相一致的类似重力流的边界层内锋面结构特征，说明了地面摩擦对锋生和锋面结构的重要影响，这是以往数值模拟还没有得到的结果。

The character of heating distribution near the front and the action of diabetic heating frontogenesis on the frontal maintenance and movement are estimated by using the objective data.

利用锋面客观分析资料计算分析了南岭准静止锋锋面附近加热场的分布特征及非绝热加热锋生对锋面维持和锋面移动的作用。

From these diagnostics, the confluence of cold and warm air, the distribution of air heating due to condensation, the factors affecting frontogenesis are analyzed, and the mechanisms of rainstorm generation are further explored.

通过对视热源和视水汽汇、锋生函数、湿位涡等诊断量的计算和分析，进一步从冷暖空气的交汇路径、水汽凝结加热的分布特征、不同因子对锋生的影响等角度进一步解释了暴雨发生的机理。

Therefore, maintenance of the frontogenesis lasted for long time at lower level and water vapor mass was blocked by it, this was an important physics mechanism for producing the persisting chilling temperature, icy rain and freezing weather disaster.

因此，低层锋生的长期维持使南来的水汽受阻是产生此次低温雨雪冰冻灾害的重要物理机制。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐