能降水的 的英文怎麼說
中文拼音 [néngjiàngshuǐde]
能降水的
英文
precipitable-
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 accumulation and transportation of moist available potential energy and the release of the condensation heat offer the material condition for this heavy rainfall. under the condition of the air ' s movement through the stiff moist isentropic surfaces, the development of vertical vorticity of mesoscale low vortex system is accelerated due to the slantwise vorticity development, and to form stronger convective system, so as to result in heavy storm rainfall
濕有效能量的積聚和輸送為強降水的發生、發展提供了充分的物質條件;由於沿陡立等熵面的空氣上滑運動,因傾斜渦度發展造成了中尺度低渦系統垂直渦度迅速增加,促進了低渦的快速加強,形成強對流系統,導致強暴雨過程的發生。Data used in this work are north pacific ssta, 160 stations precipitation of china, and ncep reanalysis data. main results are as follow : ( 1 ) it is found that a apparent transition of north pacific ssta in later 1970 ' s : eastern and middle - equatorial pacific ssta turns from cold to warm with area extending, and mid - latitude pacific ( west wind drift zone ) turns from warm to cold. during this transition of ssta, different characters also appear in el nino and la nina : before 1976, la nina happens more frequently, and its duration is longer, el nino zone develops from negative ssta in the early stage ; after 1976, el nino happens a little bit frequent and longer with more intensity than before, el nino zone develops from positive ssta in the early stage ; the course of ssta variation has an enso cycle of 2 - 6 years, annual oscillation of 8 - 9 years, and decadal variation of about 22 years
本文採用1950 - 1999年北太平洋海表溫度( sst ) 、中國160站夏季降水和ncep再分析的歐亞500hpa高度場等資料,利用eof 、 svd 、小波分析、合成分析和相關分析等方法,在分析北太平洋海溫時空分佈特徵的基礎上,著重探討了海溫異常及其年代際變化對我國東部降水的影響,並對降水、高度場和海溫三者之間的關系進行了分析,以試圖尋找三者異常之間可能的聯系,主要結論如下: ( 1 ) 1976年前後,北太平洋海溫經歷了一次明顯的轉變,赤道中、東太平洋厄爾尼諾海區由冷轉暖,暖水范圍增大,中緯度西風漂流區海溫由暖轉冷;在這樣的年代際背景下,厄爾尼諾、拉尼娜事件在不同的時期也有不同的特徵:在76年前,拉尼娜事件發生頻率高,持續時間長,事件起始於負海溫距平;而76年後,則是厄爾尼諾事件發生頻率略高,持續時間長,強度增大,事件起始於正海溫距平。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。( 4 ) in summer, tropic west pacific ssta decadal change infect precipitation decadal change in south and north of changjiang river maybe by : positive ssta in tropic west pacific weaken the summer monsoon circulation, lead more precipitation in south of changjiang river and less precipitation in north of it, vice versa ; middle north pacific ssta decadal change infect precipitation decadal change in mid - down valley of changjiang river maybe by : when ssta is negative in middle north pacific, the height field in tropic rises obviously, the subtropical high strengthens and extends westward, the northern limit retreats southward, leads upper trough retreats northward and move eastward, meiyu front moves northward, then leads more precipitation in mid - down valley of changjiang river, vice versa ; middle northwest pacific - low latitude mid - east pacific infects precipitation in north china possibly by change the activity of northeast china cyclone
( 4 )熱帶西太平洋ssta年代際變化影響夏季中國長江南北降水年代際變化的可能機制是熱帶西太平洋海表溫度正(負)異常減弱(加強)東亞夏季風環流,從而使江南降水增加(減少) ,江北降水減少(增加) ;夏季中部北太平洋ssta年代際變化影響中國長江中下游地區夏季降水年代際變化的可能機制是中部北太平洋海表溫度負異常,將導致熱帶地區高度場普遍增高,副高加強西伸,副高北界南退,致使高空槽北縮東移,梅雨鋒西移北進,中國長江游中游、中卜游降水增多,反之亦反;夏季中高緯西北太平洋一低緯中東太平洋反向距平分佈結構影響中國東北降水的可能機制是低緯中東太平洋海表溫為負異常。In this paper, the spatial and temporal distribution of the summer rainfall of north china and the sea - ice extent of north arctic are firstly analyzed, by the way of svd we also analyze the correlation distribution pattern of the spring north arctic sea - ice and the summer rainfall of china, and find out that the key section of north arctic sea - ice is the greenland sea, then the climate characteristics of the spring greenland sea - ice are analyzed, at last we have discussed the infection of the spring greenland sea - ice on the summer rainfall of north china and its possible ways
本文首先分析了華北夏季降水和北極海冰面積的時空變化特徵,並通過svd方法分析了春季北極海冰面積與中國夏季降水的相關分佈型,確定出北極海冰的關鍵區格陵蘭海,然後分析了春季格陵蘭海冰變化的氣候特徵,最後討論了春季格陵蘭海冰對華北夏季降水的影響及其可能影響途徑。The farther knowledge has been acquired that pressure - bearing karst water in deep maoba syncline is replenished by the atmospheric water from both east wing and west wing of maoba syncline, but which from east wing is more, and it is impossible that the pressure - bearing karst water from west wing rounds to replenish east wing. 3
得到進一步的認識;毛壩向斜核部的深部承壓水,同時接受向斜東翼和西翼大氣降水的補給,東翼的補給量相對大些;整個深部承壓水不存在西翼繞過核部補給東翼的可能性; 3We have done intensive research on the characteristics of large scale background, rainfall field, the characteristic of mei - yu front and low in 1999, also we confirm the close relationship between the mei - yu low and heavy rainfall, and the possible developing mechanism
我們分析了1999年的環流和大尺度背景場,降水場,梅雨鋒與低渦的結構特徵,並確定了梅雨鋒低渦與降水的緊密聯系,及發展的可能機制。The results indicate that : only with a few rain gauges to adjust the radar estimated rainfall, authors could simulate the runoff as good as that from rain - gauge - network - measured rainfall ; the accuracy of radar rainfall estimation to heavy rain acts as a more important role than that of light rain ; the estimation error of amount precipitation over a period can be treated as an index for runoff simulation ability
在1500小時時間序列的比較試驗表明,雷達估測面雨量和雨量計測量的面雨量都能較好地模擬每小時流域出口蔣集的出流量,數值試驗還表明,雷達估測面雨量在某一時段上的均值誤差作為一個指標可以較好地反映其應用於降水徑流模擬時的精度總雨量和強降水的估測精度是雷達估測面雨量能否用於徑流模擬的關鍵。In addition, the observatory also carries out computation on the probable maximum precipitation in hong kong
天文臺在水文氣象的工作亦包括計算香港的最大可能降水量。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。Now the electrical power system is developing the big and gigantic scale dynamo on the base of saving the energy and reducing the wastage, but on the base of protecting environment, from now on the small and the middle water electric power will be developed, so the auto excitation regulator fit for the small electrical power has the great market potentialities
雖然目前電力系統從節能降耗的角度正積極發展大型機組、巨型機組,但從積極發展小型電站和增強環保意識的國策上看,今後小水電、中小型熱電廠將大量發展,因此對高性能的實用於小型機組的自動勵磁調節器具有巨大的市場潛力。Through the analysis of 11 typical mesoscale convective systems occurring at china continent and adjacent ocean on june, july and august, 1998, it is found that 10. 65ghz v channel and 19. 35ghz v channel can well response to the absorbability and emission of liquid water in cloud and precipitation, and that 85. 5ghz v channel and 37. 00ghz v channel can response to the ice scatting in cloud well
通過對1998年68三個月內發生在我國大陸和鄰近洋麵上的11個中尺度對流系統的分析,發現10 . 65和19 . 35ghz垂直通道能較好的反應雲中液態水和降水的吸收和發射85 . 5和37 . 0ghz垂直通道能較好的反應雲中冰晶冰粒的散射。It can retard the setting time of the concrete. it also can be sprayed on the concrete members, and have good shrinkage reducing rate effect. it can be a kind of conserving agent
水泥對聚丙烯酸鹽類減縮劑的平均吸附率為5 %左右,聚丙烯酸鹽類減縮劑能降低水的表面張力,能使水的表面張力從75 . 7mn / m下降到43 . 5mn / m 。In this paper, decadal variability of tropic and north pacific ' s ssta and of precipitation in china, correlations between them and the possible mechanisms of the ssta decadal change compacting on the precipitation decadal change are analyzed by using ncep globe temperature, wind and height data ( 1948 - 2001 ), coads ssta data ( 1900 - 2001 ) and 147 stations " precipitation data in china. results show that : ( 1 ) mid - high latitude north pacific and tropic west pacific ssta have obvious decadal change, the prior ' s decadal change has great variance and the latter ' s has great contribution in total variance, the main eigenvectors " distribution are stable in eof of tropic and north pacific ssta ' s decadal variability, the key area of the first eigenvector allots in two sides of tropic pacific ; the second one ' s allots in mid - high latitude northwest pacific and low latitude mid - east pacific which vary contrary ; the third one ' s allots in middle north pacific
本文利用ncep資料( 1948 - 2001年)中的全球表面溫度場、風場、高度場資料, coads ( 1900 - 2001年)海表面溫度距平資料及中國147個站點1951 - 2001年共51年的降水資料,探討了熱帶及北太平洋ssta 、中國降水的年代際變化特徵,夏季熱帶及北太平洋ssta年代際變化與中國夏季降水年代際變化的耦合相互關系以及夏季熱帶及北太平洋ssta年代際變化影響中國夏季降水年代際變化的可能機制,結果表明: ( 1 )北太平洋中高緯與熱帶西太平洋均有明顯的年代際變化,北太平洋中高緯年代際變化方差顯著,而熱帶西太平洋年代際變化方差貢獻顯著。As a new retaining structure, composite soil nailed wall has been widely applied in the foundation pit now, research on the work performance of the soil nailed wall during the construction can not reveal on - site work, this occurs especially in xi ' an area with rich groundwater where groundwater is forbidden to be lowered
復合土釘墻作為一種新型的擋土結構,目前在基坑工程中得到了較為廣泛的應用,然而對復合土釘墻在施工過程中的工作性能的理論研究卻遠遠落後于工程實踐。尤其在西安地區地下水位較高且不能降水的前提下,當採用復合土釘墻進行基坑支護時,對其工作性能的研究幾乎為零。Though electric system is developing large - scale machine shop in the view of energy saving and reducing waste, small - scale hydraulic power plant and micromidi thermal - electric plant will largely develop because of the national policy of developing small - scale power plant and strengthening environmental protection idea. therefore, the high performance automatic excitation regulator which is applied in small - scale machine shop will have great market potential
雖然目前電力系統從節能降耗的角度正積極發展大型機組、巨型機組,但從積極發展小型電站和增強環保意識的國策上看,今後小水電、中小型熱電廠將大量發展,因此對高性能的實用於小型機組的自動勵磁調節器具有巨大的市場潛力。Distinct changing features of clouds after seeding were analyzed, then some significant conclusions are got. with the suitable seeding methods in proper time and region in clouds, precipitation is enhanced. and spacial distribution is changed, for example, position of rainfall center and intensities were significantly changed
研究發現不同催化劑對雲體的影響各有其自身特色,但也有共同之處:在雲體發展的合適時機和部位進行適量的催化,地面累積總降水量提高;同時有可能改變降水的空間分佈,使地面雨量中心位置和強度發生改變。It involves selecting a list of the major historical storms which had induced severe landslips or flooding, computing the rainfall amounts brought by these storms to areas of different sizes, and maximizing these rainfall amounts to those that would be obtained if the water vapour content in the storms attained the climatological maximum
可能最大降水的計算過程是復雜的。主要考慮了曾經觸發嚴重山泥傾瀉和水浸的暴雨個案,計算了每個暴雨為不同面積所帶來的降雨量,及把這些降雨量加大到暴雨的水汽是氣候上最大值時所能釋出的降雨量。A study and experiment on severe rainfall with numerical weather forecast in ningxia using geostationary meteorological satellite infrared data in order to improve the ability of torrent rainfall forecast in ningxia, which locates in northwest of china with an arid climate, the relationship between geostationary meteorological satellite infrared data and summer hourly precipitation in ningxia was analyzed, the geostationary meteorological satellite infrared data were applied to retrieve the relative humidity at medium and low layers of atmosphere
強降水預報是中尺度數值預報的難點之一。為了提高數值預報模式對位於中國西北乾旱地區寧夏的強降水預報能力,本文研究了地球同步氣象衛星紅外資料與寧夏夏季逐時降水的關系。應用地球同步氣象衛星紅外資料,通過優選人工神經網路和最優擬合后的非線性回歸這兩種非線性方法,反演了寧夏自地表到300hpa不同層次的相對濕度。分享友人