降水強度 的英文怎麼說
中文拼音 [jiàngshuǐqiángdù]
降水強度
英文
intensity of precipitation-
Analyzing the physics structure of vorticity, divergence, vertical velocity, frontogenesis " function, apparent heat source and apparent moist sink etc. indicated the physics fields are favorable for the occurance of the heavy rain over changjiang - huaihe river basin where the physics values are well according to the heavy rainstorm positions ; the low level jet is closely subject to the moisture and the coupled system of the low and the upper level jetstreams induced the strongly " ascending motion ; the intensity of the frontogenesis varies with the development of the rainfall system and reacts the rainfall intensity
主要分析了這次過程中的多種物理量,包括渦度、散度、垂直速度、鋒生函數、視熱源、視水汽匯等,對這一暴雨過程有了比較系統的認識。結果表明:在江淮流域存在著有利於發生暴雨的物理量場配置,渦度、散度、垂直速度等物理量,與暴雨的落區都很吻合的;低空急流的產生不僅有利於水汽的輸送,而且高低空急流的耦合造成了有利於強上升運動的配置;鋒生強度隨著降水系統的發展變化,並影響降水強度。The brightness temperature is highly related to the density of ice hydrometeor. since the convective cloud system is tilted, and the viewing angle is oblique, the area displacement between ice hydrometeor and the surface rainfall rate makes the relation between tb and surface rainfall rate is relatively small
但亮溫和地面降水強度之間的相關性較弱,這是由於該對流系統為傾斜的,冰相粒子和地面降水強度之間存在著位置上的不一致,並且觀測角為傾斜的。And the major results and some new viewpoints were presented as follow : 1 ) sediment content of cn tillage system in runoff process is substantially low compared to st under rainfall with high intensity, showing cn bear the efficient capacity of control soil loss. nevertheless, when soil is saturated, the runoff intensity of both tillage systems is near, implicating cn has the limited function of reducing runoff. 2 ) based on the case analysis of observed all rainfall - runoff generation processes, a ) the initiation time hysteresis of surface runoff generation is notable when rainfall fall upon the unsaturated purple soils, which is attributed to the property of rapid water sorption and much non - capillary porosity
經近幾年的觀測和理論分析,取得了以下結果和創新的認識: 1 )在降雨強度較大的情況下,保護性耕作制? ?聚土免耕的產沙強度明顯較常規耕作制? ?順坡耕作的小,說明聚土免耕耕作制防治土壤流失是有效的;但當土壤達到飽和后,聚土免耕的徑流強度與常規耕作的差異較小,產沙強度也增大,因此,聚土免耕防治水土流失的能力是有限的。But the chemical properties have no remarkable influence on it ( 3 ) as the water - to - binder reduces wich is one of key factors in the perpormance of reactive powder concrete with steel slag, the fluidity decreases but the strength increases ; incorporation of 4 percent steel fiber in volume can decrease fluility and increase strength ; heat - curing benefits the increase of strength which can still develop in 28 day water curing after heat - curing
( 3 )水膠比是影響其性能最為關鍵因素之一,隨著水膠比的降低,流動性下降和強度的提高都很明顯;摻入4的鋼纖維對流動性的影響比較明顯,同時也不同程度地提高了強度;熱養護有利於強度的提高,經熱水養護後放置水中至28天齡期,其強度有較大提升,並沒有出現強度倒縮現象。The heaviest hourly rainfall orients to the density ice cloud portion where ice cloud become turn to be water cloud
降水強度最大的區域位於多層雲附近,密實的冰雲向水雲過渡的冰雲一側。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。By monitoring the quality of the roof rainwater gathered in shanghai and analyzing the main influential factors as well as the pollution level, it is found that roof material, rainfall duration, rainfall intensity and volume are important influential factors affecting the quality of runoff from roofs
摘要通過對上海市屋面雨水水質監測,及對其污染主要影響因素與污染程度的分析表明,屋面材料、降雨歷時、降雨強度及降雨量等是屋面徑流雨水水質的重要影響因素。We systemically discussed the distribution of precipitation, dynamics of soil erosion in different land - use types, the relation between soil and water losses and some rainfall characteristics, such as rainfall amount, intensity, duration and prophase rainfall. further, rainfall erosion force was discussed and regression equations between soil and water losses and rainfall characteristics were founded
較為系統的探討了閩江上游地區的降雨分佈特徵,不同土地利用方式的水土流失動態,不同土地利用方式水土流失與降雨量、降雨強度、降雨歷時、前期降雨等的關系,在此基礎上,初步探討了閩江上游的降雨侵蝕力,並建立了不同土地利用方式水土流失與降雨特性有關的回歸方程。Laws about volumetric moisture content changes and wetting deformation in unsaturated zone are analysed according to different rainfall intensities and duration by saturated - unsaturated seepage theory in this text
摘要運用非飽和滲流理論分析了不同降雨強度和降雨持續時間對土壩非飽和區含水率變化規律。The result shows soil masses in surface layer reach saturation more easily under great rainfall intensity and long - lasting rainfall, at the same time, there are big infiltration depth and influence of wetting deformation
結果顯示,降雨強度越大、降雨持續時間越長,非飽和區土體含水率變化也大,壩坡表層土體較容易達到飽和,並且降雨影響深度也大,對壩坡表面濕化裂隙的產生及壩坡穩定性影響大。When the rainfall intensity is steady, the time longer of rainfall is, the thinner of slope soil is, the more water in slope soil before rain is, the easier the water flows on the ground. 2
因此,在太行山片麻巖區,在一定的降雨強度下,降雨時間越長,坡面土壤層越薄,坡面土壤雨前的含水量越高,越容易形成地表徑流。During the period of 4 - 5 july 2003, a heavy rain occurred in nanjing, resulting in severe flood catastrophe
「雅安天漏」是川西的一個特殊降水現象,降水強度大、尺度小,多為局地性降水。Intensity of extreme precipitation is decreased very obvious in central area of north - east china and biejing area
極端降水強度減少非常顯著的地區是東北中部地區和北京地區。And the minimum tbb fluctuation matches well to the precipitation trend ( the lower tbb the heavier rainfall )
強降水還與對流有關,降水強度總體上跟t _ ( bb )強度成正相關, t _ ( bb )越低降水越強。More attention is paid to using satellite passive microwave remote sensing data in estimating precipitation and many algorithms for the retrieval of rainfall have been developed
衛星被動微波遙感資料在降水估計中的應用日益受到重視,多年來已經發展了多種演算法反演地面降水強度。The intensity and the anomaly of the seasonal variation of rainfall often bring flood or drought, which can do great damages to local people ' s living and the development of economy
降水強度和季節變化異常會給當地帶來洪澇或者是乾旱,給當地的人民生活和經濟發展帶來嚴重的損失。Using the daily rainfall data of 740 stations over china and ncep daily up - ai data from 1971 to 2000, we analyzed the average mei - yu climate field. based on the climate field and mei - yu intensity index, we confirm that the year of 1999 is a typical mei - yu. besides, the intensity of mei - yu rainfall in 1999 is the highest since we had record, so the analysis of mei - yu in 1999 can present the common characteristics of mei - yu
本文利用1971 - 2000年中國740站的日平均降水資料和ncep的日平均高空資料分析了梅雨氣候場,利用梅雨的氣候場及中國氣象局氣候診斷預測室的梅雨強度綜合指數,確定了1999年是一個非常典型的梅雨年,並且1999年梅雨期間的降水強度是歷史以來的最高值,因此我們對1999年梅雨進行的分析有很大的代表性。Rainfall and vertical profile of hydrometers are retrieved for land and ocean using tmi 1b11 data. the comparison of retrievals of gprof v6. 1 and v6. 2 with ground - based radar and gauge data on land and pr data on ocean show that the gprof - v6 algorithm can retrieve rain intensity much well and indicate vertical distribution of hydrometers mainly. as far as retrieved precipitation area, it is better for convective precipitation type than stratified precipitation type
將陸地的反演結果與地基雷達資料和地面雨量計資料進行比較,海洋的反演結果結合trmmpr的降水產品進行比較,結果表明: gprof - v6演算法反演的降水產品可以較好地反映降水強度並反映降水的主要垂直結構;在落區方面,對流降水反映較好,層雲降水則較差;雲-輻射數據集的擴充與改進可提高反演精度。In this thesis a three - dimensional cloud model - microwave radiation transfer model combination is used to study the relations among the precipitation, other microphysical characteristics of a convective cloud system and the upwelling radiance at pertinent microwave frequencies. the results of the model are preliminarily compared with trmm products
本文利用對流性降水雲微物理模式和三維微波輻射傳輸模式,研究了中國陸地上暴雨系統的微物理結構,以及在特定的微波頻率對流性降水雲的降水強度、雲中各種微物理量與上行輻射之間的關系。2 ) the analyse of the structure of mei - yu low and the elationship between the low and rainfall three lows moved along the mei - yu front towards the northeast during mei - yu period in 1999, which produced three intensive rainfall periods along the yangtze river : ill the station of huangshan, the most heavy rainfall center, totally had 850mm rain during 11 days. the reason for the heavy rainfall was the sustaining moisture supply from the south, and the deep moist layer and the high relative humidity in the south - east quadrant
2 )梅雨鋒低渦的結構及其與降水關系分析1999年在梅雨鋒上有三個梅雨鋒低渦相繼在其上產生,冰箱東北方向移動,分別對應著長江中下游的三次強降水過程:最大降水中心黃山11天累計降水量達到850mm ,為梅雨期間平均降水量的150以上。低渦之所以產生這么大的降水和降水強度是因為低渦在移動過程中不斷有水汽輸入和補充,在其東南象限對流層中低層維持了深厚的濕層和很高的相對濕度。分享友人