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extratropical
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  温带
     48 h forecast accurate rate of the extratropical cyclone on intensity was 69%, accurate rate on place was 71%.
     48 h温带气旋强度预报准确率为69%,位置预报准确率为71%.
短句来源
     EXTRATROPICAL CYCLONE AND IT'S LONG RANGE FORECAST IN EASTERN ASIA──AN ANALYSIS OF FORECASTING APPLICATION
     东亚温带气旋及其长期预报(二)──预报应用分析
短句来源
     The results show that 24 h forecast accurate rate of the extratropical cyclone on intensity was 88%, accurate rate on place was 84%.
     结果表明:24 h温带气旋强度预报准确率达到88%,位置预报准确率为84%;
短句来源
     A Study on the Extratropical Cyclone and Voyage Selection in the North Pacific
     北太平洋温带气旋与航线选择研究
短句来源
     By using MM5(V3-2), the transformation of TOM (a tropical storm in 1996 in Northwestern Pacific Ocean) from tropical storm to extratropical cyclone is simulated, also, the thermodynamic and dynamic structures are analyzed during Tom's evolution.
     本文意在通过中尺度模式MM5(V3-2版)对发生在西北太平洋1996年热带风暴TOM转变温带气旋变性过程的模拟,对其发生及演变过程进行三维热力和动力的结构分析。
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  “extratropical”译为未确定词的双语例句
     A Diagnostic Study of Explosive Development of Extratropical Cyclone over East Asia and West Pacific Ocean
     A Diagnostic Study of Explosive Development of Extratropical Cyclone over East Asia and West Pacific Ocean
短句来源
     The key areas in north and south which have close negative correlation lie on the neighborhood of the extratropical Oyashio(40°—50°N,160°E—180°),the West Wind Drift field(30°—40°N,175°—145°W) and the middle part of The North Pacific Ocean in equator(10°S—0°,175°—145°W)respectively.
     各雨带类型对应海温距平场显著差异关键区主要位于北太平洋的南北海域,即北部中高纬亲潮附近(40°~50°N,160°E~180°),北太平洋西风漂流区(30°~40°N,175°~145°W)及南部近赤道太平洋中部(10°S~0°,175°~145°W),且南北海温呈反相关关系。
短句来源
     MOISTURE POTENTIAL VORTICITY ANALYSIS ON THE EXTRATROPICAL TRANSITION PROCESSES OF WINNIE(1997) AND BILIS(2000)
     Winnie(1997)和Bilis(2000)变性过程的湿位涡分析
短句来源
     when the forcing coefficient α=0.1 and the dissipative coefficient γ=0.02,the local quasi-biweekly oscillation appears in the extratropical latitude.
     2强迫系数α=0.1,耗散系数γ=0.02时,中高纬出现局地性准双周振荡。
短句来源
     (2)When using the free mode of idealized atmosphere as a forcing field, and making the range of forcing coefficient 0.0095≤ a≤0.011, the dissipative coefficient 0.01,the quasi-two weeks index cycle caused by the conversion between meridional circulation and zonal circulation in extratropical latitude will appear and the period of oscillation has a positive correlation with the value of the forcing coefficient;
     (2)以理想大气自由模作强迫场时,固定耗散系数γ=0.01,强迫系数0.0095≤α≤0.011时,中高纬出现了经向型环流与纬向型环流之间相互转换的准双周指数循环,振荡周期与强迫系数呈正相关关系。
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  相似匹配句对
     ON EXTRATROPICAL STORM SURGES
     关于温带风暴潮
短句来源
     RESEARCHES ON TROPICAL EXTRATROPICAL INTERACTION
     热带内外地区相互作用研究
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  extratropical
The spatial structure of surface air temperature (SAT) anomalies in the extratropical latitudes of the Northern Hemisphere (NH) during the 20th century is studied from the data obtained over the period 1892-1999.
      
On the other hand, the warm SST anomaly over the western and central Pacific, as a forcing, may lead to a specific pattern of the northern extratropical atmosphere, which is favorable to the strong EAWM activity.
      
Excitation of Low-level cross-equatorial flow in the western Indian ocean results from an interaction between extratropical perturbations moving eastward across the South African-Malgassy region of the Southern Hemisphere.
      
This paper briefly reviews the state-of-the-art in this research area: the nature of the Madden-Julian Oscillation, its relation to monsoonal and extratropical circulations, and the current theoretical understandings.
      
A diagnostic study of explosive development of extratropical cyclone over East Asia and West Pacific Ocean
      
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A four-layer baroclinic atmospheric model is adopted to investigate how the non-thermal wind adjusts itself to the thermal wind state. The adjusting process is performed by four gravitational inertial waves whose wave front speeds are about 306 m/sec, 114 m/sec, 36 m/sec, and 19 m/sec respectively. It is found that the higher the level the more important is the faster internal inertial wave in the process of adjustment, and that the external wave may be important only below the 750 mb level. The calculated results...

A four-layer baroclinic atmospheric model is adopted to investigate how the non-thermal wind adjusts itself to the thermal wind state. The adjusting process is performed by four gravitational inertial waves whose wave front speeds are about 306 m/sec, 114 m/sec, 36 m/sec, and 19 m/sec respectively. It is found that the higher the level the more important is the faster internal inertial wave in the process of adjustment, and that the external wave may be important only below the 750 mb level. The calculated results also indicate that the alternation of the divergence and convergence in the vertical, which is normally termed Dines' compensation, results from the formation of thermal wind under certain initial condition.Calculations of the adjusting process with different initial non-geostrophic states are carried out in order to study the development of the large scale weather system. For example, a non-geostrophic vortex in wind field on the 375 mb level can result in a high with the warm center in the troposphere and the cold center in the stratosphere. Two cases of non-geostrophic state with the same temperature distribution but situated at different layers of the troposphere will result in quite different flow patterns through the adjusting process. A warm center not in geostrophic equilibrium at lower layer, can only give result to a shallow warm low in the lower troposphere, but in the case of warm center not in geostrophic equilibrium at middle layer, an intense anticyclone forms in the high troposphere and even in the lower stratosphere. Finally a preliminary discussion is given to the adjustment of the non-thermal wind which is produced by the process of the formation of the extratropical cyclone.

本文用四层模式分析了热成风适应。在适应过程中将发生四种波速不同的惯性波来调节流场和温度场的关系。它们的前阵面的速度分别为306米/秒,114米/秒,36.2米/秒,19.2米/秒。层次愈高,快速惯性波的作用愈大;惯性外波在750毫巴以下才有它的重要性。 计算指出:大气中辐合辐散以及垂直运动在垂直方向上互相迭置的现象,是一定条件下热成风适应的结果。本文计算了各种情况的初始条件下温度场和气压场的相互调整。例如375毫巴上单纯非地转风的流场的反气旋涡旋,适应后可建立起对流层暖性、平流层是冷性的高压系统。将初始非热成风的暖温度中心,放在对流层下层和放在对流层中层适应后的结果将不一样。前者只能在对流层下层形成一浅薄的热低压,而后者可在对流层上层建立起一个强大的反气旋,甚至一直影响到平流层。最后,结合气旋发展时所产生的非热成风的特点,讨论了它们的适应。

Monsoon indices used in this paper are defined as:1. Angle of deviation of prevailing wind in January and July≥120。2. Average frequencies of the directions of the prevailing wind in thesame months = 40%or close to it. With indices so defined as criteria, the monsoon districts in china willinclude the following provinces, munipalities, or autonomous regions, Li-aoning, Jilin, Heilongjiang, Shanxi, Hebei, Shandong, Henan, Jiangsu, Zhejiang,Fujian, Guangdong, Guangxi, Guizhou, Yunnan, Hubei, Hunan, Anhui,Jiangxi,...

Monsoon indices used in this paper are defined as:1. Angle of deviation of prevailing wind in January and July≥120。2. Average frequencies of the directions of the prevailing wind in thesame months = 40%or close to it. With indices so defined as criteria, the monsoon districts in china willinclude the following provinces, munipalities, or autonomous regions, Li-aoning, Jilin, Heilongjiang, Shanxi, Hebei, Shandong, Henan, Jiangsu, Zhejiang,Fujian, Guangdong, Guangxi, Guizhou, Yunnan, Hubei, Hunan, Anhui,Jiangxi, Shanxi, Taiwan, Beijing, Shanghai, Tianjin and portions of Si-chuan, Neimeng, Ningxia, Gansu. By characteristics of local climate and vegetation in China four mos-oon climatic regions are suggested: (1) Tropical monsoon climatic region,(2)Subtropical monsoon climatic region,(3)Extratropical monsoon clima-tic region, and (4) North extratropical monsoon climatic region.

本文定义季风指数为: (1)一月和七月盛行风向转向角不小于120°; (2)一月和七月盛行风向平均频率接近或达到40%。用此划分中国季风气候区域。认为中国季风气候区包括辽、吉、黑、晋、冀、鲁、豫、苏、浙、闽、粤、桂、黔、滇、鄂、湘、皖、赣、陕、台、北京、上海、天津23省市自治区及四川、内蒙、宁夏、甘肃的一部分。 根据气候特征和植被分布,又划分中国季风区为四个季风气候区:(1)热带季风气候区,(2)副热带季风气候区,(3)温带季风气候区,(4)北温带季风气候区。

The case selected in this study is an intense typhoon (Billie) which moved over the Southeast China and interacted with an extratropical frontal system. Kinetic energy(KE)budget and available potential energy (APE) were computed by using the quasi-Lagrangian scheme during the period 10 to 12 Aug. 1976. The main results of this study are: 1) In the weakening process of the landed typhoon, exchange of KE with the environment was small. Then the typhoon could be considered as a "quasi-closed" system. 2) In...

The case selected in this study is an intense typhoon (Billie) which moved over the Southeast China and interacted with an extratropical frontal system. Kinetic energy(KE)budget and available potential energy (APE) were computed by using the quasi-Lagrangian scheme during the period 10 to 12 Aug. 1976. The main results of this study are: 1) In the weakening process of the landed typhoon, exchange of KE with the environment was small. Then the typhoon could be considered as a "quasi-closed" system. 2) In the various weakening stages of the landed typhoon, the thermodynamic and dynamic processes were different. When the typhoon moved just over land and accompanied with heavy rain, the latent heat and moist convection were still the major source of KE. The energy sink due to cross-contour flow in the upper troposphere was the important reason for the decrepitude of the typhoon. The barotropic process was dominant in the decrease of KE. However, after the typhoon interacted with the westerlies, the KE generation by baroclinic process increased and the frictional dissipation played a significant role in this stage. 3) Throughout the period of interest, large amount of APE entered into the environmental atmosphere through the lateral boundaries of the typhoon circulation. This may be one of the major processes of interaction between the typhoon and the surroundings.

本文对一个登陆我国的台风以及它与西风带相互作用的过程进行了能量学分析。计算了动能平衡和有效位能。结果表明:(1)台风在登陆后的减弱过程中,与环境大气的动能交换较小,可以把这个台风看作是一个动能的“准封闭系统”。(2)在登陆台风减弱过程的不同阶段,热力和动力作用很不相同。刚登陆时,伴随着大暴雨,积云对流群是台风的重要动能源。对流层上部穿越等压线的运动是台风减弱的重要原因。其中以正压过程为主。台风与西风带系统相互作用后的动能平衡与温带气旋类似。斜压过程的动能产生率增加,摩擦在台风衰减过程中起重要作用。(3)在台风附近有大量的有效位能释放。通过台风系统的边界有大量位能注入环境大气。而在台风倒槽里新生的气旋,则从环境大气中得到位能。这种过程可能是台风与周围环境相互作用的一种主要方式。

 
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