convective instability 中文意思是什麼
convective instability
解釋
對粱穩定性- convective : adj. 1. 有傳送力[運輸力]的，傳送性的。2. 【物理學】對流的。
- instability : n. 動搖性，不穩定性；不堅決，反復無常，三心二意。 the instability of human affairs 人事滄桑。
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One of factors which activize the explosive development of cyclone exists strong convective instability in lower layers from the analysis of the barotropic potential vorticity
由正壓位渦分析得出，氣旋爆發性發展的啟動因子之一為低層存在強對流性不穩定。 -
In a word, convective instability strong baxoclinicity barotropic advection of potential vorticity and latent heat release are factors which activize this explosive development of cyclone
總之，對流不穩定、強斜壓性和正壓位渦平流、潛熱釋放是本次氣旋發展的啟動因子。 -
The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm
結果表明：此次霍山暴雨發生前後，存在明顯的大強度低空急流，並受到中尺度切變線的影響，而且正渦度的加強引起了輻合加劇，提高了上升速度從而引起降水，同時暴雨發生前螺旋度的迅速增強，也為預報提供了根據，另外水汽通量的輻合以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特點。 -
The weakest convective instability is at the occluded stages of cyclone
氣旋錮囚期對流不穩定最弱。 -
In order to make clear the changing situation about various meteorological element fields during the heavy rain. the diagnostic analysis in three aspects was done in this text : the vapor conditions, in which the difference of the temperature and dew point, relative humidity, vapor flux and the divergence of vapor flux were discussed ; the dynamic and thermodynamic conditions, vorticity, divergence and vertical velocity were analyzed ; the vertical layer condition, which included potential temperature, static stability, convective ( potential ) instability and the vertical profile of eight physical fields over the observatory of shenyang
為了弄清這次暴雨過程各氣象要素場的演變情況，分三方面對暴雨的水汽條件（使用了溫度露點差、相對濕度、水汽通量和水汽通量散度） 、動力條件（使用了散度、渦度和垂直速度）和垂直層結條件（使用了位溫、靜力穩定度和潛在不穩定度以及沈陽單站的8個物理量的垂直廓線）等的變化，分別進行了診斷分析。 -
Firstly, the resault of daily calculation about all kinds of potential instability parameter in a month show that, as a vertical integral potential instability parameter, cape ' s daily variation corresponded to the severe convective storms " occurrence
首先，逐日計算2003年江淮梅雨期的各種位勢穩定度因子，結果表明， cape屬於垂直積分穩定度指數，其日變化與強對流風暴的發生有較好的對應關系。 -
The simulation results reveal that water vapor transportation northward is responsible for the generation of the convective instability in south shandong, and the easterly wind from sea, gravity wave and convergence generated by southward invasion of weak cold air in pbl play main role in trigger, transmission and enhancement of convective systems
定性地給出了中尺度對流系統氣流運動的圖像，即：在邊界層，氣流從東南方向斜升流入中對流區，在系統中垂直上升，約在7000米一9000米高空向東北方向流出，形成非閉合的垂直環流。 -
The results show that there are two centers of occurrence of llsw respectively in dong bei and jiang nan ; the regional torrential rain over the yangtze river basin is closely associated with llsw during the major periods of heavy rainfall ; the diurnal variation of the number of occurrence in the middle and low reaches of the yangtze river is the strongest in china there are some significant differences between llj and nallsw in positive season, spatial variation, diurnal variation and field of pressure. by the way, the important effect of inertial stability on heavy rainfall with both low level south - westerly jet and high level northerly strong flow is analyzed theoretically. the results show that the existence of the maximum of inertial stability in the left font of the low level jet is favor of the accumulation of the moist thermal energy, and conditional symmetric instability or convective instability can be expected in this region
另外，慣性穩定性的作用以往不受重視，本文通過對西南低空急流左前方和高空偏北大風軸右後方的慣性穩定性和對稱穩定性的理論分析和實例計算，表明慣性穩定性在伴有高低空急流的暴雨中有重要意義，揭示了梅雨暴雨的一種新的高低空急流耦合機制：低空急流左前方慣性穩定度大值區的存在，有利於低層濕熱能量的積累，使低層傾斜對流的不穩定發展更多期望于條件性對稱不穩定或對流不穩定；高空偏北大風軸（西風急流）的存在，是其右後方（右側）出現對稱不穩定的有利條件，高空相對容易出現干對稱不穩定；慣性穩定性的作用，使低層的傾斜對流更偏向於垂直方向，有利於對流發展，使高層的傾斜對流更偏向於水平方向，有利於高層輻散。 -
The analysis of meso - scale synoptic systems indicated that the occurrence and development of the local and paroxysmal meso - scale synoptic systems led to this rainfall besides the helpful macro - scale conditions. the evolution of the meso - systems depended mainly on the topography and the macro - scale conditions, among which the topography and convective instability were thought to be the most important
同時，在大尺度上升運動區中低層存在一個條件對稱不穩定建立的機制，使得在暴雨區，既存在深厚的對流不穩定機制，又存在水汽輸入機制和對流不穩定的觸發機制，從而形成強暴雨。 -
In this paper, the cape is mainly discussed, rescently, which used widely in indicating the potential instability characteristic of severe convective storms " ambient field
本文主要討論了目前使用較為廣泛的表徵對流風暴環境場位勢穩定度的因子對流有效位能cape 。 -
Convective and shear instability can provide the wave energy. during the initial and merger stages, the convective and mgws interact with each other constructively
（ 3 ）太行山地形強迫和對流是本次mgws產生的重要機制，對流和切變不穩定為重力波的加強和維持提供能量來源。 -
By the analysis of the relationship among convective instability, symmetric instability and snowstorm, we found that the convective instability level is under 800hpa. snow belt is located in the negative value region of moist potential vorticity and verified the theory of symmetric instability
最後分析了這場暴雪中西北和東北地區的對流和對稱穩定度，個例分析表明，暴雪產生在低層對流不穩定的情況下。 -
The analyses suggest that the first and second categories of rainstorms are associated commonly with the strong inertial instability in the upper troposphere, as well as respectively with symmetry and convective instabilities, and their rainfall is large ; and the third and fourth categories generally produce stable precipitation with a small rainfall, and their upper tropospheres are usually inertially stable
分析濕位渦與梅雨暴雨中的慣性不穩定、對稱不穩定、對流不穩定的關系發現：第1類暴雨往往與對稱不穩定有關，第2類暴雨與對流不穩定有關，且這兩類暴雨高層多具有強慣性不穩定，降水相對較大；第3 、第4類暴雨是穩定性降雨，高層一般不具備慣性不穩定，雨量一般較小。 -
In the violent stages of development of cyclone, the convective instability becomes weak greatly
在氣旋強烈發展期對流不穩定大大減弱。
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