integrated analyzing some parameters such as echo intensity, echo top height, water content, cloud top temperature, echo move speed and echo area, we obtain the ground artificial precipitation index and grade rule, then establish doppler radar operation command system for ground artificial precipitation.

1、

around the strong currents, like north equator current ( nec) and the kuroshio extension ( ke), meridional variation of the eddy zonal moving speed was much closer to that of the phase speed of rossby wave including effects of the zonal mean current.

在北赤道流和黑潮延续体等强流附近，涡旋的实际纬向移速与纬向平均流影响下的罗斯贝波相速更为接近。

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2、

based on a theoretical model of tropical cyclone and through dynamical diagnostic analyses, typhoons with different motion speed and ambient fields are used to investigate the physical mechanism and law of typhoon anomalous motion.

运用热带气旋曲率理论模型，选择不同环境及移速特征的台风个例，通过动力学诊断分析，揭示了台风异常运动的关键影响因子的物理机制及其规律。

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3、

the numerical results show that the presence of small dissipation causes a slow decrease of the amplitude and the propagation speed of the solitary waves and slow increase of the solitary wave width.

结果显示，小耗散的存在使孤波的振幅和移速随时间缓慢地减小，孤波宽度则随时间缓慢增大；

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4、

the bigger the gradient of the specific humidity field is, the slower the typhoons moves, and the longer and stronger the rainfall.

登陆时台风中心比湿值、等值线的梯度越大、移速的越慢，则降水时间越长、雨强越大，降水越集中。

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5、

⑶ there is some relationship between the type of a tropical cyclone and its source region, occurring month, intensity or moving speed.

⑶影响湛江热带气旋的源地、出现月份、强度及移速与其分型有一定关系；

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6、

the analysis shows that barotropic processes dominate indirection of motion, but, under some circumstances, baroclinic processes dominate in its speed.

对总涡度倾向分布和强度的比较分析，发现正压过程主导台风运动的方向，而斜压过程在某些情况下对台风移速有很大影响。

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7、

a quasi-geostrophic barotropic model is used to study the correlation between the asymmetric structure and the moving velocity of typhoon.

利用准地转正压模式，在无环境气流的情况下，对初始轴对称和非轴对称理想台风实施两组共13个数值试验，研究台风环流不同区域的非对称性与其移速的关系。

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8、

the huabei anti-cyclonic ridge blocked off the eastward movement of rainstorm from the qinghai-xizang plateau and slowed the local rainstorm.

华北高脊稳定，使得高原低值系统移速减慢、停滞，有利于特大暴雨的形成；

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9、

the speed stabilizing and voltage stabilizing system composed of two large power thyristor devices in series, in parallel or individually

用两套大功率晶闸管整流装置单独或组成串联、并联的移速及稳压系统

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10、

in this paper, the equation of motion and the formula of the speed of typhoon have been derived.

本文推导了台风的运动方程和移速公式，分析了台风的初速度和初始位置对移速的影响。

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11、

vamco is expected to recurve in the northwestern periphery of the subtropical ridge, and is expected to accelerate.

预料环高将沿东部副热带高压脊西北面逐渐转向东北移动，移速将会加快。

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12、

statistical analysis on the multi level steering flows and sudden changes in speed and direction of tropical cyclones movement

多层引导气流与热带气旋移速移向突变的统计分析

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13、

a numerical study on the relationship between the asymmetric structure and moving velocity of typhoon in baroclinic atmosphere

斜压大气中环流非对称结构与台风移速关系的数值研究斜压大气中热带气旋运动特征的动力分析

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14、

a diagnostic analysis on abrupt change in moving speed of tropical cyclone over the south china sea

南海海区热带气旋移速突变的分析

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15、

the air-sea interaction has certain effect on slowing down the phase speed of the wave.

海-气相互作用在减慢激发波的移速方面也有一定作用。

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16、

a diagnostic and predicting method for the mutation of moving speed of typhoon

台风移速突变的诊断预报方法

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17、

a numerical study on the abrupt change of velocity of tropical cyclone motion

台风移速突变的数值研究

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18、

the influences of the initial speed and position of typhoon on its movement

台风的初速度和初始位置对台风移速的影响

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19、

which is closely related with their initial asymmetric structures.

台风移速突然变化与前期台风环流的非对称结构之间存在着密切的联系。

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20、

diagnostic study on speed catastrophe and track prediction for typhoons

台风移速突变的诊断分析及路径预报

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