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   tropical system 在 气象学 分类中 的翻译结果: 查询用时:0.061秒
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tropical system
相关语句
  热带系统
    An Analysis on a Tropical System Rainfall
    一次热带系统降水分析
短句来源
    The another decay mechanism is that the tropical storm maintains the characteris-tics of a tropical system for a long time after landing and then has not rapidly changed the mainenergy source from latent heat relese into the baroclinic process.
    另外,如台风登陆后继续维持热带系统特点,未能迅速将主要能源由潜热释放转变为斜压过程,也易迅速消亡。
短句来源
    It is found that a south wind velocity convergence on the side of subtropical high,the echo′s consolidation in the spiral rain band,convergence caused by wind′s perpendicular shear and high precipitation rate of tropical system are the precipitation mechanism and characteristic of the rain event.
    发现副热带高压边缘偏南气流的风速辐合、螺旋雨带中强回波短带的合并加强、风的垂直切变产生的辐合以及热带系统的高效率降水作用是这次暴雨过程的降水成因和降水特点。
短句来源
    The results indicate that in the yearly-first flood season, most of the lightning process of westerly zone systems occur at night, while the counterparts of the tropical system almost always happen in daytime;
    结果表明:西风带系统云系的闪电过程在前汛期大部分出现在夜间,而热带系统云系的闪电过程几乎都出现在日间;
短句来源
    cloud systems of the westerly zone system are quite different from the tropical system in the lightning distribution character and range.
    西风带系统云系的闪电分布形态特征和范围与热带系统云系有很大的差异。
短句来源
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  tropical system
In addition neither soil ammonium, extractable phosphorus nor rate of plant growth showed any definite seasonal periodicity in this tropical system.
      
The northward migration of the jet stream implies the retreat of the midand high latitude system, and the advancement of the tropical system.
      
This tropical system persists usually over the Levant for several days prior the storm.
      
In each instance, the tropical system served as the catalyst for major flooding and landslides at landfall.
      
If this vertical tilting of the system persists, growth will become inhibited and the tropical system will decay.
      
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In the summer half year,the average intensity of the Pacific high pressurechanges more or less abruptly.It strongly increaseses from June to July and de-creases gradually from April to June.In middle September it decreasees suddenly. In.the summer season(from June to August),tha advance and retreat of theWestern Pacific pressure ridge(moving from east to west or reversed)is intimatelycorrelated with teh upper westerlies.At the same time,the Pacific High itselfis an important factor of the atmospheric circulation.When...

In the summer half year,the average intensity of the Pacific high pressurechanges more or less abruptly.It strongly increaseses from June to July and de-creases gradually from April to June.In middle September it decreasees suddenly. In.the summer season(from June to August),tha advance and retreat of theWestern Pacific pressure ridge(moving from east to west or reversed)is intimatelycorrelated with teh upper westerlies.At the same time,the Pacific High itselfis an important factor of the atmospheric circulation.When the zonal circulationis strong,the intensity of the Pacific High is also relatively strong and the posi-tion of the western Pacific pressure ridge changes little.When the small wavesin the westerlies move out from Asia into the Pacific Ocean,the position ofthe western Pacific pressure ridge only vibrates slightly.But,when the waves in thewesternlies are strong,the western Pacific pressure ridge advances westward andthen retreats eastward apparently.The period advance and retreat of the ridgeis about five or six days During the period of fow zonal circulation index, thewestern Pacific pressure ridge moves eastward.when the circulation index growsfrom low to high,the ridge advances westward.The range of longitudes ofoscillation of the ridge in this type is largest,about 30-40 degrees,and the periodof oscillation is longest,about half month in general.The longest period reachesone month. Besides,the movement of the Pacific High ridge is also studied in relationto he tropical systems,such as typhoons.

夏半年太平洋高压的平均变化,带著突变性质的增强和减弱,突然的增强发生6月到7月,而4月至6月更有逐渐减弱的趋向,到9月中旬以後则突然的减退。 夏季西太平洋高压脊的东西进退和整个西风环流变化及西风环流的情况密切关连,同时太平洋高压本身也是西风环流及其变化的重要因素之一。当西风环流强时,太平洋高压比较强大,这时太平洋高压脊的变化很少,在西风环流小波动东移的过程中,太平洋高压脊只有微小的摆动。但西风带波动较大时,随着西风槽和高压脊的东移,太平洋高压脊便有了比较长时期的和明显的东退和西伸,它的周期一般都在5、6天左右。如果西风环流起了大型的变化,即西风环流由强转弱,再由弱转强,太平洋高压脊随之不断的东退和西伸,进退的范围可达30-40经距。它的周期较长,一般都在半个月的光景,最长的可达一个月,10天以内的很少。 太平洋高压脊除了和西风带的环流,极地高压和低压槽有关外,也和它南边的气压系统,如台风和热带风暴有关。

A tropical limited area multi-level primitive equation model, in which the time integral is performed with a split semi-implicit scheme, is presented. The operating time is shortened to one-third of the time the explicit scheme needs. The results of operational experiments show that the model is stable in computation and capable of producing acceptable forecast for tropical systems. Besides synoptic reports, data derived from other sources are used so as to improve the forecast, especially over tropical...

A tropical limited area multi-level primitive equation model, in which the time integral is performed with a split semi-implicit scheme, is presented. The operating time is shortened to one-third of the time the explicit scheme needs. The results of operational experiments show that the model is stable in computation and capable of producing acceptable forecast for tropical systems. Besides synoptic reports, data derived from other sources are used so as to improve the forecast, especially over tropical oceans where conventional data is scarce.

本文提出一个采用分裂半隐式时间积分方案的热带有限区多层初始方程数值预报模式。业务预报试验表明模式的计算稳定性较好,预报作业时间较显式方案缩短约三分之二,对热带天气系统有一定预报能力。为了弥补热带大洋上探空资料不足,还试验了插补其他来源的资料,效果也较好。

In this paper,a study on the structure of the offshore tropical storms is made based on the data of the severe tropical storm Ida(8006)and the typhoon Ellen(8309).It is found that theremarkable features of the offshore tropical storms are the obvious asymmetry in the air—flowfield and the weak warm center.A comparative diagnostic research on kinetic energy budget and heating field of such a pairof tropical storms is carried out.It is emphatically pointed out that the decay mechanism of an off-shore tropical...

In this paper,a study on the structure of the offshore tropical storms is made based on the data of the severe tropical storm Ida(8006)and the typhoon Ellen(8309).It is found that theremarkable features of the offshore tropical storms are the obvious asymmetry in the air—flowfield and the weak warm center.A comparative diagnostic research on kinetic energy budget and heating field of such a pairof tropical storms is carried out.It is emphatically pointed out that the decay mechanism of an off-shore tropical storm is implicated in the asymmetric structure.This is because the warm area andthe ascending motion area are biased from the center and not coincided with each other.The baro-clinic transformation process from available potential energy to kinetic energy is very weak andeven negative.The another decay mechanism is that the tropical storm maintains the characteris-tics of a tropical system for a long time after landing and then has not rapidly changed the mainenergy source from latent heat relese into the baroclinic process.For the tropical storms which decay soon after landing,the maximum heating is stronger and its altitude is higher.

本文以8006和8309两个台风为例,分析了近海台风的结构,指出其重要特点是运动场和热力场的显著不对称和只有弱的暖心。本文还着重对它们在近海及登陆后的总动能和涡动动能收支及加热场情况,进行了对比诊断研究。指出近海台风的不对称结构中,隐含着消亡机制,这是由于不对称的暖区和上升区都偏离台风中心且不相一致,使台风区有效位能向动能转换的过程很弱甚至反向。另外,如台风登陆后继续维持热带系统特点,未能迅速将主要能源由潜热释放转变为斜压过程,也易迅速消亡。在加热场方面,登陆后迅速减弱的台风,最大加热强度较大,其所在层次也较高。

 
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