過冷降水 的英文怎麼說
中文拼音 [guòlěngjiàngshuǐ]
過冷降水
英文
abundant precipitation-
We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful
綜合分析認為: ( 1 ) 、這次冷渦在其發生發展過程中,其移動路徑是沿經圈直線南壓,攜帶的冷空氣勢力較強,形成槽后較強的垂直運動; ( 2 ) 、西太平洋副熱帶高壓偏北位置與東北冷渦南壓形成的急流軸,把源源不斷的西南暖濕氣流輸送到遼西地區,也就是急流軸的左前方位置,為這次暴雨的產生提供了充足的水汽來源; ( 3 ) 、低空急流不但為暴雨輸送水汽,其造成的較強的垂直環流也是產生強降水的一個主要原因; ( 4 ) 、 mm5模式以四維同化資料作為初始場,最大限度地避免了觀測誤差可能造成的積分不穩定,提高了模擬結果的參考價值。The factors that probably leads to cracks are put forward based on the analysis, which in turn are : the deformation of surrounding rock and the deformation of concrete volume and the pelter of air temperature and thermal insulation temperature rise and the thickness of liner and cooling pipe
通過分析得出了導致裂縫的幾種可能原因依次為:混凝土的圍巖變形、自生體積變形、氣溫驟降、絕熱溫升、襯砌厚度和冷卻水管等,為今後類似工程提供理論依據。It was well known that the main process of precipitation formation was collecting cloud water in the warm area and ice phase particles melting in the cold area. positive vertical velocity existed between 700hpa and 500hpa in the warm area and near surface in the cold area. wind convergence existed at the height of 700hpa, and divergence existed above and below the height of 700hpa
通過對降水雲系的綜合研究,建立了河南省春季層狀雲降水概念模型:暖區降水主要通過雲水碰並形成,冷區降水機制以冰粒子融化等冷雲過程為主;暖區700一50ohpa通常有上升氣流,冷區上升氣流分佈在近地面附近: 700沖a存在風場的輻合,其上下則主要是輻散區;水汽主要集中在7o0hpa高度上,暖區水汽來自南、東南方向,冷區水汽以西南輸送為主;暖區位勢不穩定分佈在o 。The above analysis showed that this heavy rainfall event took on obvious meso - scale characters and was the combination of the three flows, so we can deduce : ( 1 ) surface southeasterly wind and topography may play the main role in this event ; ( 2 ) the easterly cold air rushing into the southern shaanxi province in the lower troposphere was strongly relative to the form of surface cold - front type of occlusion ; ( 3 ) there were two reasons for the secondary circulation ' s strengthen in the evening, one was the effect of a mountain - valley wind and the other may be latent heat leading to ascending motion ; ( 4 ) the shape of potential instability stratification corresponded well with the development of the warm - moisture advection ; and ( 5 ) the vapor providing essential thermodynamics was transported by a southwesterly low - level jet from the bay of bengal and the south china sea. furthermore, with the effect of terrain, the southern shaanxi province became the center of this extremely heavy rain process
中尺度結構分析表明,本次暴雨具有明顯的中尺度特徵,是由三支氣流共同作用的結果,分析發現( 1 )地面東南風和地形在這次大暴雨過程起主要作用; ( 2 )東路冷空氣主要是通過中低層侵入陜南地區的,並與地面冷式錮囚鋒的形成密不可分; ( 3 )夜博士論文:中尺度地形對陜南暴雨的影響研究間垂直次級環流發展加強可能有兩個原因,一個是由於地形山谷風的作用,另一個是降水的潛熱釋放激發了上升運動: ( 4 )位勢不穩定層結的形成與低層暖濕平流的發展有很好的對應關系; ( 5 )本次暴雨的水汽主要靠偏南風急流將孟加拉灣和中國南海的水汽輸送至西北地區東部,為暴雨的發生提供了必要熱力條件。Based on t213 and other observational datasets, a severe heavy rain occurred in changjiang - huaihe basins during 4 - 5 july 2003 is studied. the primary diagnostic analyses show that double or single block is the characteristics of the macroscale circulation in this rainfall process. the strong conflict of warm and cold mass, mesoscale convergence on meiyu front, shear line, and stably maintaining of high and low jets make for the rainfall
本文採用地面高空常規資料,每6h一次的降水資料,以及t213數值預報資料,對2003年7月4 - 5日發生在江淮地區的一次梅雨鋒暴雨過程的影響系統及其可能機制進行了初步的診斷分析,發現,高緯雙阻、單阻形勢是這次暴雨過程發生的大尺度環流特徵;冷暖空氣的激烈交鋒、梅雨鋒上的中尺度輻合線、 700hpa 、 850hpa上的低渦、切變線以及穩定維持的高低空急流是導致這場暴雨的直接影響系統;該地區維持一個高能、飽和、潛在不穩定的環境,有利於特大暴雨的產生和維持。The main relative systems of heavy - hard rainfall in northeast plateau are western pacific subtropical high, south asia high, low latitude systems, upper level jet ( ulj ), low level greater wind speed axes, westerly trough and plateau trough, low level vortex, cold frontal, occluded front in qinghai lake, mesoscale low pressure, heat low - pressure in qinghai, shear line and convergence line, mesoscale cloud cluster, etc. the west subsidiary model of south asia high is the main circulation type of heavy - hard rainfall in this area
3 、西太平洋副高、南亞高壓、低緯系統、高空急流、低空大風速軸;西風槽和高原槽、低渦、冷鋒、青海湖錮囚鋒以及中尺度低壓、青海熱低壓、切變線與輻合線、中尺度雲團等系統是高原東北部地區大到暴雨的主要相關系統。 100hpa上的南亞高壓中心強度加強,位置東西擺動預示高原地區將有降水產生,中心強度減弱,降水過程結束。南亞高壓西部副型是高原東北部地區大到暴雨的主要流型。It calculates the effects during each time step of winds carrying along the various atmospheric properties and of the processes of evaporation, rainfall, surface friction, infrared cooling and solar heating that occur in the area of interest
在每個時步里,模式計算的作用包括:各種隨著風改變的大氣性質、蒸發過程、降水、表面摩擦以及在重要地區的長波輻射冷卻與日照加熱。Rainfall is started mainly in cold portions. microphysics for ground rainfall consists of low - level warm portions in which precipitating particles are produced, growing through collision with cloud water and when descending into the warm portions below, ice - phase particles melt and continue to grow by collecting cloud water there. 4 )
降水主要以冷雨過程發動,地面降水形成的微物理過程分別為低層暖雲過程產生並通過碰並雲水增長、降落到暖區的冰相粒子融化和融化的冰相粒子在雲的暖區收集雲水繼續長大等三部分組成。Then by using of statistics and numerical simulation analysis, research abnormality of the main circulation system at following summer in east asia, and the influence of the abnormality on the rainfall and temperature in summer in china, when sst over the kuroshio area during winter show cold or warm anomaly
再分別通過統計和數值模擬的方法,系統的分析了冬季黑潮海溫冷暖異常時,後期夏季東亞地區高低空的主要環流系統的異常,以及這些異常又如何進一步影響了我國夏季的降水和氣溫。Grey correlation analyses show that at the time axis, the factors influencing the diversity of plants strongly are primary productivity, annual precipitation, relative humidity, mean temperature in january, and potential evaporation etc. the spatial distribution pattern of terrestrial vertebrates including mammals, birds, reptilians and amphibians were studied with methods similar to those for plants. 7 d
通過d以排序表明, d以第一軸與多個環境因子均呈顯著相關,其中與經度、年均溫、年均降水量、年均相對濕度、潛在蒸發量、初級生產力呈正相關,與緯度、海拔、年均風速、寒冷指數、年均日照率呈負相關。The condensing length increases with the boiler heating power and air content increasing, while it decreases with the system pressure increasing. under the normal pressure, the wall temperature and the centerline temperature along the condensing length nearly remain constant for pure steam, while they decrease continuously for steam / air mixture. however, when the steam condenses over, the temperatures drops rapidly
常壓下,純凈蒸汽冷凝時,有效冷凝段管壁壁溫基本保持不變,但是當蒸汽冷凝完畢進入過冷水階段后,管壁壁溫會急劇下降;蒸汽中含有空氣時,冷凝管中心溫度變化不大,但管壁壁溫始終呈下降趨勢。Under the influence of a weak cold air southward from the north china, some parts of shanghai will see scattered showers from this afternoon to tomorrow
受北方一股弱冷空氣擴散南下影響,今天下午到明天白天本市將有一次弱降水過程,氣溫有所下降。There is an active growth layer and super cooled water exists with ice crystals that may be an important feature layer to occur rain in stratiform cloud
過冷水滴和冰晶共存層存在,且冰晶活躍增長,此層的存在可能是發生降水的關鍵。The thesis draws the following conclusion : ( 1 ) 11500 - 8500ab. p., through comprehensive analysis of these proxy climatic substitute indexes reveals : this was a period in which the temperature risen and the precipitation increased, but it was mainly still dry and cold ; the vegetation was prairie or forest prairie ; there were flood deposits in the dust sediments of late stage ; and it was the shifting period from the new stone age to the old stone age
主要得到以下幾方面的認識: ( 1 ) 11500 8500ab . p . ,綜合多氣候代用指標分析的結果表明:本期氣候表現為溫度升高、降水增大的好轉時期,但總體上仍以乾冷為主;結合很少發現較粗顆粒木炭屑的情況推斷當時的植被是草原或森林草原;研究發現在後期粉塵沉積過程中有洪流沉積。The article point out that the downward transport of the high moist potential vorticity from high level causes the development of low level cyclone. the rainfall may occur near the south area of positive center of mpv1 and negative region of mpv2 at 500hpa
在整個降水過程中,副熱帶高壓穩定少動,其西北側的暖濕氣流為強降水提供了充沛的水汽條件,地面冷鋒和高原低渦是其抬升機制。All records show the characteristics of high precipitation and large swing before 1100aad, but the characteristics of low precipitation and small swing after 1100aad. during the medieval warm period there is a very dry period
相同時段氧同位素與紋層厚度、灰度對比表明,過去2000多年主要是暖濕、乾冷的氣候組合方式,但在氣候轉型期溫度、降水並沒有完全表現同步變化,體現乾暖、冷濕組合。On the application of evaporation & condensation, a new open cycle solar still, which is configured mainly by one kind of falling film evaporator, condenser, solar collector and some auxiliary devices, is proposed. parameters affecting system performance, i. e., temperatures and flow rates of moist air, seawater, and cooling water, are analyzed numerically and experimentally
最後,本文建立了一種以高效降膜蒸發器為核心部件的新型開放循環海水淡化系統,在降膜蒸發器、太陽能集熱器和冷凝器等部件數學模型基礎之上,建立了合理的系統模型,通過數值模擬對空氣、海水、冷卻水等有關參數對淡水產量的影響進行了分析。After the modification, the characteristic of outlet water of the spray nozzle is changed and the outlet temperature of the cooling water from the spray nozzle is decreased. as a result, the coal consumption is reduced and the efficiency of the steam turbine is better
通過對噴濺裝置的改造,改變了噴頭的出水特性,從而降低了冷卻水出水溫度,提高了汽輪機真空和汽輪機熱效率,降低了煤耗,提高了機組運行的經濟性。On the beginning, the first low was warmer from the low level to the high level. only after developing, it also became colder on the low level and wanner on the upper level, which was the result of the release of coagulation heat with rainfall
第一個低渦在出生時從低層到高層都是暖心結構,但在發展之後也成為下冷上暖的結構,三個低渦在發展過程中出現的這種下冷上暖的結構表明在低渦中上層有大量的降水釋放凝結潛熱。In this paper, firstly large - scale air circulation and weather system evolution are analyzed, and get the scale feature and spread process of the meso - scale convective system by analyzing time - space layout of precipitation and satellite cloud maps. the lower resolution of t213 model and less time - space resolution of data were responsible for the above mentioned misforecast. in this study, the event is simulated by mm5v3. 6 with two - way - interaction and triple nested grid
分析並指出了此次過程中對流降水的演變規律:對流活動引起的高層重力波和邊界層冷涌是對流傳播和觸發大暴雨中心對流活動的主要機制,地面冷空氣的侵入,引起邊界層暖濕空氣的交匯和強烈輻合是對流活動顯著加強的原因。分享友人