| 1. | Energy front has offered energy condition to produce severe convection
能量锋区为产生强对流提供了能量条件。 |
| 2. | Only above soohpa , the mei - yu front is similar when we use the two ways to analysis
在500hpa以上，用假相当位温确定的梅雨锋区与用温度场确定的梅雨锋区才较为一致。 |
| 3. | Potential instability that exists with conditional symmetrical stability make the vertical ascend movement in e big value area and slope ascend movement in e surface ( meiyu front area ) produce and maintain
位势不稳定和条件性对称不稳定共存使得在_ e高值区域的垂直上升运动和在_ e面(梅雨锋区)上的斜上升运动得以产生和维持。 |
| 4. | High pseudo - potential temperature along mei - yu front area mainly presented the deep convection of mei - yu area , so there would be a front along each side of the high pseudo - potential temperature , then the pseudo front would appear
有人单从假相当位温场分析锋面结构，结果在假相当位温高值舌区两侧各产生一个锋区，这就产生了虚假的锋区。 |
| 5. | Below 600hpa , the front of east asia was mei - yu front ; mei - yu equatorial front and polar front from the south to the north ; while above 600hpa , there was only mei - yu front . upon these conclusions , we put forward a conception model of east - asia front
在600hpa以下，东亚地区的经向方向锋区从南到北依次表现为梅雨锋，梅雨赤道缝和极锋；而在600hpa以上，只是极锋型的梅雨锋的单一结构。 |
| 6. | It was a typical mei - yu front on the middle and upper level of the troposphere which became wider with the height increased . the temperature field of mei - yu front area looked like " sandwich " with the warmer air along the each side of the colder air of mei - yu area
在水平方向，梅雨锋区的温度场在对流层中低层呈现“暖-冷-暖”的“三明治”结构，即梅雨锋区温度最低，而在其两侧温度最高。 |
| 7. | Vertical distribution of phytoplankton biomass and numerical abundance of calanus sinicus were investigated across the tidal fronts in the yellow sea , in october 2000 and may 2001 . the abundance of calanus sinicus was higher at the frontal region than at the adjacent stratified and mixed areas while the chlorophyll - a concentration was highest in the stratified area or mixed area adjacent frontal region
结果显示中华哲水蚤丰度在海洋锋区比其临近两侧的混合区与层化区高；锋区叶绿素a浓度低于其邻近的层化区或混合区；叶绿素a浓度高值区通常位于锋区邻近的层化区或混合区一侧。 |
| 8. | By combining with the simulation result of the vertical circulation structure , we propose that the factors induced the distribution difference of calanus sinicus and chlorophyll - a concentration not only include the grazing activities , vertical circulation structure at the fronts also plays an important role . the circulation of bohai sea in spring is examined to provide a reliable physical environment for biological model
首次抽出黄海海洋锋区的垂向环流结构有利于中华哲水蚤在锋区的聚集，叶绿素a浓度高值区偏离锋区也与锋区上升流结构密切相关，模型研究中首先对渤海环流的物理机制进行了研究。 |
| 9. | The diagnostic analysis for the sandstorm process on the base of height , temperature , pressure and wind etc output from the model shows that the upper cold trough , low - level wind shear , surface cold anticyclonic ridge , mesoscale cyclone and cold front are the main synoptic systems , surface cold anticyclonic ridge and cold front provide condition of wind force to occurrence of the sandstorm weather , the strong mesoscale cyclone before front makes pressure gradient before and after cold front obviously strengthen , moreover , and it increases obviously the temperature of the controlled area , as a result , the updraft movement caused by convergence before front strengthens
500hpa强锋区、 700hpa切变和锋前中尺度系统的强弱及位置变化是沙尘暴天气发生发展到减弱的直接原因。地面冷高压、地面气旋及冷锋是造成本次沙尘暴天气的主要地面天气系统。地面冷高压及冷锋为沙尘暴天气的发生提供了风力条件，而中尺度气旋使冷锋前后气压梯度明显增强外，又使所控制的区域增温明显，使锋前辐合上升运动加强，为沙尘暴天气的发生提供了热、动力条件。 |
| 10. | By analyzing the abundance distribution of the calanus sinicus at the fronts in the two surveys , we try to find the direct dominant physical processes . and on the basis of that , provide a simple coupled physical and biological model and apply it in the bohai sea . the position of the tidal fronts and vertical circulation structure near the fronts are examined using the blumberg & mellor 3d nonlinear numerical coastal circulation model incorporating with mellor & yamada level 2 . 5 turbulent closure model
论文基于目前国际上普遍使用的blumberg & melior三维非线性环流模型( ecom )并结合mellor & yamada的21 / 2阶湍封闭模型，采用blumberg & mellor改进的半隐式数值差分格式，首先对黄海海洋锋位置及其锋区环流特征、形成锋的主要动力机制等进行了研究。 |
