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typhoon
相关语句
  台风
    Dynamical Analyses,Four-Dimensional Data Assimilation and Numerical Experiment for Typhoon Sea Surface Wind
    台风海面风场的动力分析、四维同化及数值试验
短句来源
    Research in Effects of Terrain on the Propagation of Vortex Rossby Waves and Typhoon Intensity Change
    地形对涡旋Rossby波传播和台风强度变化影响的研究
短句来源
    Features of Vorticity Propagation in the Typhoon Region and the Numerical Study on the Landing Track of Winnie
    台风环流区域涡量传播特征及Winnie台风登陆路径的数值研究
短句来源
    The Lower Leyer Structure and Its Evolution of Typhoon On Land and Its Surroundings
    台风登陆后低层周围温、压、湿场的结构及其演变
短句来源
    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
短句来源
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  “typhoon”译为未确定词的双语例句
    THE FORMATION OF TYPHOON ORA (7504) IN THE ITCZ UNDER THE INFLUENCE OF THE JETS AT THE LOWER-MIDDLE LEVEL
    对流层中低空急流影响下辐合带扰动的发展——7504号台风的形成
短句来源
    A SYNOPTIC METEOROLOGICAL ANALYSIS OF TYPHOON No.8111 IN THE SOUTH CHINA SEA
    8111号南海台风的天气学分析
短句来源
    DIFFERENCE OF TWO ELNINO EVENTS AND COMPARATIVE ANALYSIS OF DROUGHT WATER LOGGING AND TYPHOON IN CHINAIN 1963 AND 1976
    1963、1976年两次不同ELNino事件的差异以及我国旱涝和台风的对比分析
短句来源
    An Analysis of the Structure of the North-Permanent Trough of Typhoon 9012 and Mesoscale Systems of the Heavy Rain
    9012台风倒槽结构与暴雨中尺度系统
短句来源
    APPLICATION OF FUZZY NEARTUDE ON THE EVALUATION OF TYPHOON PATH PREDICTION
    模糊贴近度在热带气旋路径预评评价中的应用
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  typhoon
Numerical Simulation of the Evolution of Intensive Convective Vortices of the Typhoon Type in a Rotating Fluid
      
We predict the trajectory of the center of a typhoon by using the coordinates of the first three positions of the center.
      
A stationary solution to the air motion equations in the lower part of a typhoon
      
The existence of a stationary axisymmetric solution is proved to the model equations describing the air motion in the lower part of a typhoon.
      
The analysis results reveal that the actual environmental conditions including traffic loadings, environmental temperature and typhoon loadings have remarkable correlations with the measured WPES.
      
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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。

This is a brief report of a preliminary survey of certain rain-bearing systems over China in later spring and summer. In the first part, a general description of the methods of analysis used in this survey is given. As the temperature and wind fields are weak, and the precipitation is heavy, smaller intervals for the isotherms and contours in the constant pressure surface and pseudo-equivalent potential instead of potential temperature in the cross section analysis are used.In the second part, there are descriptions...

This is a brief report of a preliminary survey of certain rain-bearing systems over China in later spring and summer. In the first part, a general description of the methods of analysis used in this survey is given. As the temperature and wind fields are weak, and the precipitation is heavy, smaller intervals for the isotherms and contours in the constant pressure surface and pseudo-equivalent potential instead of potential temperature in the cross section analysis are used.In the second part, there are descriptions of the structure and development of five frequently observed rain-bearing systems i.e. cold front, blocking high and cold vortex, monsoon heat low, warm front and typhoon.The last part consists of discussions of some points of view in synoptic meteorology in China. It is stated that the monsoon precipitation is various in intensity and duration according the large-scale flow patterns. The difference of moisture content in the middle troposphere as a criterion for the identification of equatorial or tropical maritime air mass is proved to be missleading. It is shown that the upper air moist content is high only within the raining region near the polar or equatorial front. To the south of the equatorial front within the so-called equatorial air mass, the moist content in the middle troposphere is as low as within the tropical maritime air mass. It is the convergence and lifting of the tropical air mass which releases the convective instability and induces the surface moist air rising to the middle troposphere. The phenomenon of the forward-inclination of the so-called North-West Trough based on the time cross-section of wind is proved to be a mistake by combining two systems into one trough. The terminology of shear line, and the correct application of synoptic models in weather analysis and forecas-ting are also discussed.

本文是一年来从事夏季降水天气初步普查的简单报告。第一节首先指出所用分析方法与一般国内所通用者,稍有不同。高空等压面分析,取20米作为等高缐间隔,2℃作为等温缐间隔。代替40米及5℃的间隔,以适应夏半年较弱的温度场与气压形势场,在剖面分析中以等假相当位温缐代替位温缐,与等温缐配合以适应降水天气的凝结降水过程。 第二节讨论了五种夏半年基本降水天气系统,即冷锋、阻塞高压与冷涡、季风热低压、 暖锋及有风的结构,并简单地叙述了演变过程。 第三节对某些天气概念提供一些批判性的讨论。根据现已增加的观测材料,论证季风与梅雨是多样性的,决定于大规模的温度场与流场特性,以高空湿度大小区分赤道气团与热带海洋气团,证明是不适当的,因为中国赤道锋降水区域以南,即在所谓南南季风的赤道气团中,中层大气仍是干燥的。降水区域内,中层对流层的大量水份,是由于辐合或抬升的作用,使潜势的对流不稳定性成为现实的不稳定性,而由下层空气上升带上去的。文中还论证了所谓西北槽槽缐前倾是将两个系统混作—个系统的不正确桔果。最后还讨论了切交缐及一般模型在天气分析预报中的应用与限制。

In this paper, the equations of motion of vortices in baroclinic atmosphere are derived in the light of classical hydrodynamics. Six factors determining the motion of vortices are discussed. Physical interpretation and some comments are given to the well-known steering principle. Application of these equations in the forecasting of the motion of typhoons are illustrated by three examples, and the results are better or as well as those of the synoptic forecasts. Possibility and limitation of their application...

In this paper, the equations of motion of vortices in baroclinic atmosphere are derived in the light of classical hydrodynamics. Six factors determining the motion of vortices are discussed. Physical interpretation and some comments are given to the well-known steering principle. Application of these equations in the forecasting of the motion of typhoons are illustrated by three examples, and the results are better or as well as those of the synoptic forecasts. Possibility and limitation of their application to the motion of middle-latitude vortices are also discussed.In the appendix, there are critical discussions of the role of the internal forces and the calculation of the amplitude and period of the meandering motion of typhoons in straight steering current.

本文根据流体力学的基本理论,得出了斜压大气中的涡旋运动方程。并讨论了决定涡旋运动的六个基本因子。对日常应用的高空引导观念给予比较明确的物理解释并加以修正。文中对这方程在预报台风移动的应用作了初步说明,也附带简单地谈到了中纬度系统的移动。在附录中还指出了关于系统内力作用的误解,并简单地讨论了台风运动的摆动周期和振幅。

 
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