cloud process 中文意思是什麼
cloud process
解釋
成雲過程；雲形成過程-
The influence of the cloud droplet spectrum character and the spectrum growth and change is considered, which does not use a cut - off value for conversion from cloud water into rain water process. in the continuous coalescence equation, the particles fall velocity difference is not moved out from the integral, but is integrated in the equation as the function of diameter d to avoid the error of using particles average fall velocity. in the new scheme, generation rate of graupel due to the collection of snow by graupel and the collection of cloud ice by graupel are included
雲中凝結核ccn的數濃度採用超幾何函數表示；雲水向雨水的自動轉換過程採用grabowski （ 1999 ）的公式，考慮了雲滴譜的特徵和發展變化對該過程的影響，而不是採用原方案給定閾值的方法描述該過程；對連續碰並方程不再將粒子落速差作為常量提出積分號外，而是直接作為粒子直徑函數在積分號內求解，這樣處理可以迴避使用粒子群的平均落速帶來的誤差；增加了霰和雪、霰和冰晶的碰並微物理過程。 -
Using the 1ap 3 - d hailstorm numerical model, we analyze influence of variation on rainfall amount, hail fallout amount, dynamical process of cloud, microphysical process, mechanism of hail suppression with seeding, and seeding outcome. besides, we use those study outcomes and bring forward some advice about using and improving model. we simulate a hailstorm occurred in nanjing county and analyze influence of raindrop, ice crystal, graupel size distribution on outcome of model
本文利用中國科學院大氣物理研究所的三維冰雹雲催化數值模式，通過對冰雹雲的模擬和對譜參數的數值試驗結果，分析了冰雹雲中粒子譜形的變化，對雲和降水過程的影響，其中包括雨滴譜、冰晶譜、霰譜的形狀參數對自然雲的發展過程、降雨降雹、雲中微物理過程、霰以及冰雹的形成機制的影響。 -
These results suggest that the new scheme will provide some valuable information on macro and micro structure characteristic of stratus cloud, physical process of precipitation and weather modification research
說明新方案可以為層狀雲的宏微觀結構特徵、降水物理過程和人工影響研究提供一定依據。 -
At the same time, the effects of dragging force from fall of hydrometeors and latent - heat release from phase transfer are tested. from the analyses we conclude that the distributing of the cloud particles relates with temperature closely. huanan heavy rainfall and mei - yu front heavy rainfall have mixed - phase process with vapor phase, liquid phase and ice phase
詳細分析了形成降水的雲物理過程，探討了源匯項對水凝物的貢獻，並通過敏感性試驗，考察了雲物理過程對降水熱力動力過程的反饋作用，研究結果表明：華南暖區暴雨和長江梅雨鋒暴雨的雲物理過程具有汽、水、冰三相混合雲特徵。 -
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 。 -
In this paper aircraft has made vertical and synthetic detecting flying purposefully on 9. 17, 2003 according to cloud ' s macro and microstructure. vertical layers and representative places of stratiform cloud on 9. 17, 2003 are analyzed using the observational data of particle measurement system ( pms ), combined with satellite data, radar data, and precipitation data on ground. by this we have got cloud ' s microphysical structure and physical process of the natural precipitation, and the physical effect evidence has been testified according to observational data after lco2 seeding
本文用綜合觀測的方法，利用機載pms雲粒子探測系統，根據雲系的宏微觀結構特徵進行有針對性的垂直探測飛行，配合衛星、雷達、地面雨量、雨強計網觀測資料對2003年9月17日延安降水性層狀雲系中那些有代表性的部位或垂直分層做細致的觀測分析，獲得雲系的微物理結構和自然降水形成的物理過程，並用觀測事實來驗證人工增雨引晶催化后的物理響應判據。 -
The results indicate that in the yearly - first flood season, most of the lightning process of westerly zone systems occur at night, while the counterparts of the tropical system almost always happen in daytime ; cloud systems of the westerly zone system are quite different from the tropical system in the lightning distribution character and range
結果表明：西風帶系統雲系的閃電過程在前汛期大部分出現在夜間，而熱帶系統雲系的閃電過程幾乎都出現在日間；西風帶系統雲系的閃電分佈形態特徵和范圍與熱帶系統雲系有很大的差異。 -
In this process, the moisture of the initial field between the lifting condensation level and the cloud top at the point where rain is observed is adjusted to allow precipitation process to be switched on
在這個過程中，初始場中降雨區域上空，位於抬升凝結高度與雲頂之間的濕度會予以調整，作用是要啟動降水過程。 -
In the process, these stars are shredding the surrounding material that is the last vestige of the giant cloud from which the stars were born
在這一過程中，這些恆星撕扯著在其誕生處周圍剩餘的星雲物質。 -
The width of raindrop size distribution in the warm area was narrow and its shape was single model. simulating results of one - dimension stratus model showed that the content of cloud water that grew up by deposition process was the largest in the warm area, and cloud water existed between 2km and 6km. in the warm area, the formation of rain water which existed between 1km and 4km was behind of the formation of cloud water, and the development of rainwater was depend on collecting cloud water
一維層狀雲模式模擬結果表明，暖區以凝華增長的雲水為主，雲水分佈在2 6km高度；雨水在雲水形成后產生，分佈在1 4km之間，主要通過碰並雲水增長；霰在雨水形成后產生，主要通過碰並雲水增長，分佈在雲水區的中下層，霰形成后，雨水主要由霰融化產生。 -
Moreover, taking the fatlute model of the covering parts of motorcycle for an example, it discussed the measurement plan method of prototype and the process of data handling. 2. pretreatment of points cloud according to the characteristic of scattered point cloud data, the issue elaborated in detail points cloud registration, which was based on the shape characteristic matching
論文運用一級模糊綜合評判方法研究了復雜曲面產品的數字化策略，並以摩托車覆蓋件油泥模型為例，討論了樣件的測量規劃方法和數據的處理流程； 2 、點雲數據的規范處理針對散亂點雲數據的特點，詳細闡述了基於形狀特徵匹配的點雲對正方法。 -
The result was used to adjust relative humidity and to enhance the ability of mm5 mesoscale modeling system to produce accurate forecast of precipitation. we define the air condition includes 5 kinds : the clear sky, semitransparent or fractional cloud, high cloud and low cloud and middle cloud. in this process, we present the method development for the generation of cloud based on gms - 5 images. mm5 ( fifth - generation perm. state / near mesoscale model ) output will be extensively used for the off - line computation of dynamic changeable mutispectral thresholds in order to adapt to variable weather using statistical regressive relations produced by optimal regressive analysis
基於常規地面觀測資料，將天空狀況分為晴空、半透明雲或碎雲、高雲、中雲和低雲5種情況，用最優回歸分析法對mm5模式的三維要素場和常規地面觀測資料進行統計分析，得出雲判別和雲分類的衛星雲圖多譜閾值的統計關系統計回歸判別方程，對衛星雲圖進行雲判別和雲分類，據此得出mm5中尺度數值模式初始場各點的雲分佈，並對模式初始場的相對濕度進行調整，以達到改善中尺度數值預報模式預報結果的目的。 -
The weather system on july 5th 08bst depicted by the cloud - drift winds could be distinctively seen an anticyclone with divergence in the north and convergence in the south which was much helpful in rationally explaining the real weather process combined with some traditional methods
由它所表示的2003年7月5日07 ? 08時的高空風場上，可以清楚地看到一個北邊輻散，南邊輻合的反氣旋環流，這些細節有效地幫助了常規方法，使其對天氣過程做出合理的診斷分析。 -
Obtained pre - tight and in the work process pressure distribution, the frictional stress, the elastoplasticity distortion and the stress distributed cloud chart and so on, and has carried on the thorough comparison and the analysis to the result
得到了施加預緊和工作過程中的壓力情況，摩擦應力，彈塑性變形和應力分佈雲圖等，並對結果進行了深入的比較和分析。 -
The dividing process is recorded by octree, and then we make out the rapid adjacent - field searching algorithm using envelopment - box ' s recursion feature. this algorithm can also kick off some noise - points from the data cloud. it make the consequent process of surface reconstruction more convenience and precise
分割過程採用八叉樹來記錄，並利用包圍盒的遞歸特性實現了點的鄰域的快速搜索演算法，同時可以有效地排除噪聲點，顯著減少了密集散亂數據點雲幾何建模所花費的時間，提高了建模效率。 -
Then the reconstruction of curved surface of the covering parts was taken for an example, and the emphasis is laid on the identification and extraction method of the characteristic and the boundary, and the reconstruction method of curved surface. meanwhile it was given emphasis to the partition strategy of the data of point cloud, the forward direction design of the process of re, and so on
在此基礎上，以覆蓋件曲面重構為例，重點研究了點雲數據的分塊策略、曲面特徵的識別和提取方法、曲面邊界提取和曲面重構方式，以及反求過程中的正向設計等。 -
Based on the outstanding characteristics of cloud model on the process of transforming a qualitative concept to a set of quantitative numerical values, and integrate with the basic principle of genetic algorithm, a novel adaptive evolutionary algorithm for continuous global optimization problems was proposed
在定性知識的指導下該演算法能夠自適應控制搜索空間的范圍，較好地避免了傳統遺傳演算法易陷入局部最優解和選擇壓力過大造成的早熟收斂等問題。 -
In this paper we studied the textural features extraction, remote sensing images classification and bp neural network techniques and their applications in the meteorological problems such as recognition of the cloud cluster feature, cloud - drift wind retrieval and heavy rain process analysis etc. to the question of the low precise recognition of satellite images by using spectral features, the proposed approach assumes to perform a multiple analysis based on an advisable decision - making model by first developing a mixed pixel model which was based on the textural features of images, and then improving the recognition intelligence
本文對模式識別領域中的圖像紋理特徵提取、遙感圖像分類、 bp神經網路與紋理特徵組合分類等方法，以及它們在雲團屬性識別、雲跡風反演和暴雨過程分析等氣象問題中的應用作了研究。針對過去利用圖像光譜亮度特徵進行識別分析氣象衛星圖像準確度不高的問題，本文提出了發展混合像元的分解模型，以圖像的紋理特徵為基礎，提高圖像識別的智能水平，以實現在分析決策模型的支持下，快速準確的復合分析的解決方案。 -
It processes these data that gathered from the optical measurement system or other 3d measuring apparatus directly without the preprocessing of wiping off noise points. user can define the resolution of the exported triangle mesh through setting a few parameters. it still can process other information of the points of cloud except for the x, y, z coordinates, such as color information ( rgb )
它可以直接處理來源於光學測量系統或者其他的一些三維測量系統的數據，而不用經過去除雜點的數據預處理過程；輸出三角形網格的解析度可以由用戶通過設置一些參數來進行控制；這個演算法還可以處理一些來自於點雲的點所帶的除了（ x ， y ， z ）坐標以外的一些信息，比如說顏色信息（ rgb ）等；此外我們還提供了幾種可以實現的紋理映射（ texturemapping ）的思路。 -
In this paper, i will present some algorithms of polyhedral visual hull reconstruction : ( 1 ) polyhedral v isual h ull generation a igorithm b ased one dge - pool - searching, which constrains the 3 - d intersections into the 2 - d planes intersection via the epipolar theory to reduce the complexity a nd c an r educe t he t imes f or c ones t o b e p rejected o nto t he i mage p lanes, i n which we induced the index list to every points on the surface of object, and connected the related points to get sub polygons on surface and in turn get the mesh model, we replace triangulation process of disordered points cloud by edge - pool searching. ; ( 2 ) reconstruction based on degenerated - polygon - intersection, which have the following improvements on traditional bull intersection : using degenerated polygon to orga nize intersected area on cone face, which may be discontinuous ; a fast intersection algorithm of polygons on the cone face based on degenerated polygons, which is consistent between the continuous polygons and the discontinuous ones. the intersection of degenerated polygons is similar to the convergence of two ordered lists, which is comparably simple to the bull operation ; ( 3 ) reconstruction algorithm based on ray - tracing, in which all the rays that run through the vertex on silhouette of object will intersect with all the cones correspondent to other silhouette, and we have to calculate the intersection of all such line segments, the endpoints of which are considered to lie on the surface of object and we will get the point cloud on the surface of object
同時利用共極線原理把三維計算投影到二維平面以降低求交計算的復雜度，該演算法可以減少光錐向圖像平面投影計算的次數，以邊池搜索取代散亂點集上進行的三角剖分； （ 2 ）基於退化多邊形求交的多面體可見殼模型重構，系統引入退化多邊形的概念，把錐體平面的交集中不連通的部分用一個退化多邊形來表示，並引入了新的基於退化多邊形的求交演算法，與傳統多面體可見殼重構相比，該演算法有以下幾點創新：在圖像平面以退化多邊形組織投影錐體和物體輪廓的交集，把任意錐面與物體輪廓的交集歸一到一個退化多邊形；基於退化多邊形的二維平面上多邊形快速相交演算法，該演算法在一定程度上就是兩個有序鏈表的合併，大大簡化了先前的布爾求交計算； （ 3 ）基於光線跟蹤的演算法，該演算法中所有通過輪廓頂點的光線和對應其它圖像輪廓的光錐進行求交計算，最後得到每次求交計算得到線段的交集，該線段的頂點就認為是物體表面點，從而得到物體表面的點雲。
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