artificial rainfall 中文意思是什麼

artificial rainfall 解釋
人工降雨
  • artificial : adj 1 人工的，人造的；人為的 （opp natural）。2 摹擬的 （opp genuine real）; 不自然的，矯揉造作的...
  • rainfall : 下雨，雨量。
  1. Meanwhile, an artificial imitation rainfall system was developed in order to study the characteristics of city underlying surface and make experimental check up about the relative appraising index, on which 200 rainfall experiments are made, analyzing the effect of rainfall intensity to the runoff of underlying surface ; the relationship between runoff permeability and unit factor of rainfall intensity and duration ; the effect of rainfall intensity, duration, soil moisture content, and temperature to the runoff permeability ; the relationship between rainfall quantity and runoff permeability, and make mathematical imitation to the expe rimental results, to find the mutual - relationships, and make discussion about the differences between equations of fit

    同時，為研究城市下墊面的產匯流特性研製了一套人工模擬降雨系統，並對相關評價指標進行了實測校驗。在此基礎上，進行了200多場降雨實驗，分析了雨強、歷時、土壤前期含水量、溫度、降雨量、不同下墊面和不同覆蓋度等對產匯流的影響，及各種因素對徑流系數的影響和相關性，建立了一定條件下歷時徑流系數，雨強徑流系數，流量徑流系數的函數模型。
  2. Abstract : in accordance with the problems in the system of well storing rainfall at present, based on the experiments of artificial simulating rainfall, and assistance with the measures of natural rainfall, the relationships among the surface runoff yield, silt concentration, catching runoff efficiency and the material of surface, slope gradient, rainfall intensity are analysed systematically. then, the best slope gradient and material of surface are chosen, in condition of which surface rainfall yield is the largest and silt concentration is the smallest. this is a beneficial study for the practical use of the rainwater catchment plot in furture

    文摘:針對當前旱井集雨系統存在的問題，利用人工降雨試驗，並輔以天然降雨觀測，系統分析了旱井集流區的產流量、含沙率、集流效率與下墊面材料、坡度、降雨強度的關系，進而選出了最優坡度及最優下墊面材料，為今後旱井集流區的應用研究做了有益的探討。
  3. In order to control wind erosion, 5 measures are brought out that to increase artificial rainfall, to develop irrigated farming and to rise using rate of water resource, to control soil erosion, to optimize the frame of crops and solid expoiting, and to establish control and forecast system

    提出了防治沙化的5大措施，即增加人工降雨改造利用沙地、發展灌溉農業提高水資源利用率、治理水土流失、優化種植結構、立體開發、建立健全監測預報系統。
  4. Based on the rainfall data in autumn, an analysis of synthesis profit, such as autumn rainfall utilized in spring, the change of soil moisture, water storage variation in qinghai lake and so on, of the artificial precipitation is made

    摘要據2001年秋季人工增雨資料，結合歷年秋季降水資料，從秋雨春用、影響地下水位涵養、青海湖水量盈虧等方面分析了秋季人工增雨的綜合效益；並著重分析了秋季降水與環湖地區土壤水分貯量以及第二年春季環湖天然草場土壤墑情、牧草返青時間、生長狀況及產量的關系。
  5. On the basis of analyzing factor ( soil particle composition, soil bulk density, water stable aggregate content, antecedent soil moisture, slope gradient, rain intensity, accumulation depth and soil crust, soil and water conservation tillage measures ) affecting soil infiltration rates, several relation models was obtained ; analyzed in detail different soil and water conservation tillage measures intensifying infiltration rates, while there have the same rainfall condition, the increasing infiltration rates of contour tillage and artificial digging and artificial hoeing in gully areas of loess plateau are 67 % and 41 % and 29 % ; the increasing infiltration rates in hilly areas of loess plateau is 45 % and 22 % and 14 %

    在相同的降雨條件下，黃土高原溝壑區等高耕作與直線坡相比，可提高入滲67 ，人工掏挖可提高入滲41 ，人工鋤耕可提高入滲29 ；黃土丘陵溝壑區等高耕作可提高入滲45 ，人工掏挖可提高入滲22 ，人工鋤耕可提高入滲14 。並根據黃土高原超滲產流的概念和水量平衡方程，建立了不同水土保持耕作措施強化入滲速率模型。
  6. To prevent flood, adopting non - project measures is feasible and efficient marching measures in recent years in most of counties, adequately utilizing modern science and technology such as computer, information processing, net and communication, system emulation, artificial intelligence and so on to build system that can automatically survey and forecast water information, now plays a important role in grasping the information of rainfall, water and project, in making and selecting preliminary draft of flood control and dispatch, which can greatly raises the efficiency and flexibility of flood control, and has important realistic significance and social economic benefits in minimizing flood disaster

    充分利用現代科學技術，如計算機、信息處理、網路和通訊、系統模擬、人工智慧等技術，建立水情自動測報系統，對雨、水、工情的掌握，防洪調度預案的制定、選擇和實施都有重要的使用價值，可以大大提高防洪工程措施的防洪效能和防汛調度的靈活性，對減少洪水災害具有重要的現實意義和社會經濟效益。鬱江洪水預報與調度系統內容豐富，主要有： 1 、系統設計； 2 、系統洪水預報模型； 3 、系統實時校正模型； 4 、系統河道洪水演進模型； 5 、系統水庫調度模型。
  7. This work aims at studying multi - scale structures of large - scale stratiform precipitating clouds typical of henan province of central - eastern china in spring and autumn drought periods of china, the potentials and techniques of artificial rain increase. through analysis of historical weather / climate and cloud physical data, developed are a number of multi - scale observational schemes including intensive observational items, and space / time resolutions of data for integrative field observations to obtain real - time measurements of the structures at large -, medium -, small - and micro - scale. from analysis of observed separate items, their integrative treatment and numerical simulation we place focus on case studies and their integration in investigating such structures of stratiform precipitating clouds over the target region, rainfall physical mechanisms and exploitation of artificial rainfall increase potentials, whereupon a conceptual model is constructed and a range of catalysis schemes are proposed to improve smaller - scale forecasting accracy and techniques for the rainfall increase, with the dominant results given below

    以地處中原、具有典型代表意義的河南層狀降水雲系為主要研究對象，在對該地歷史天氣氣候和雲物理等資料分析的基礎上，研究設計雲系多尺度觀測方案（包括加密觀測項目、觀測時空解析度） ，實施有設計的外場綜合觀測，獲取雲系結構多尺度（大、中、小、微）配套的實時觀測資料；通過對各種觀測資料的分項和綜合處理分析，以典型個例觀測和數值模擬分析研究為重點，綜合多個例分析，研究河南層狀降水雲系多尺度宏微觀結構特徵、降水物理機制和人工增雨潛力條件，建立典型層狀雲系人工增雨概念模型，研究科學的人工增雨作業技術系統。
  8. Research on rainfall - infiltration processes under artificial robinia pseudoacacia plantation and afforestation technology in the slope of low - land in taihang mountains

    太行山低山丘陵區坡地人工刺槐林降雨入滲及造林技術研究
  9. Upon using an artificial neural network ( ann ) a new short - term climate forecast model with the monthly mean rainfall in june in the north of guangxi as predictand is established making empirical orthogonal functions ( eof ) to the 36 predictors ( 15 ssa predictors, 21 500hpa height predictors ) with over 0. 05 significant correlation level of previous 500hpa height and sea surface temperature ( sst ) field, and selecting the high relative principal components, at the same time, a new approach of constructing ann learning matrix is developed. predictive capability between the new model ( principal components ann model ) and linear regression model for the same predictors is discussed based on the independent samples and historical samples

    本文通過對廣西北部6月平均降水量（預報量）同北半球月平均500hpa高度場和北太平洋月平均海溫場進行相關普查，選取了前期36個同預報量相關顯著水平達到0 . 05以上的預報因子（ 15個海溫場預報因子， 21個高度場預報因子） ，並運用自然正交函數展開方法對這36個前期預報因子展開，取其中同預報量相關程度高的主成分，結合人工神經網路技術，提出了一種新的構造人工神經網路學習矩陣的方法，建立了一種新的短期氣候預測模型。
  10. With studying a great deal of data on the medium and long - term rainfall forecasting, auto - regressive model, artificial neural network and shepard interpolation model are used on the annual rainfall forecasting, in order to test if these models fit into the rainfall forecasting. and the result of the rainfall forecasting proves that these models for rainfall forecasting are practical and efficient

    作者通過翻閱大量的有關中長期降雨預測方面的文獻資料，分別採用了自回歸模型、人工神經網路模型和shepard插值模型來進行年降雨的預測，以檢驗它們應用於年降雨預測的可行性，本文的年降雨預測結果說明了這幾種方法應用於年降雨預測的可行性。
  11. Based on artificial rainfall, the courses of sediment yield were studied, at the same time, analyze influence of rainfall intensity, gradient and bulk densities to sediment yield amount

    在人工降雨實驗模擬的基礎上，對硬地面次降雨侵蝕產沙過程和影響硬地面侵蝕產沙的因素進行了初步探討，為硬地面的侵蝕防治提供了科學依據。
  12. According to the observation data and outcomes of artificial rainfall, based on the overland flow formulas established slope farmland runoff model

    摘要在野外模擬降雨的基礎上，建立基於一維聖維南運動方程的黑土區坡耕地徑流模型。
  13. The paper analyzes the effect of three cultivation measures of contour cropping, manual excavation and manual hoeing to the reduction of run - off energy and erosion based on office artificial rainfall testing

    摘要在室內人工降雨試驗的基礎上，分析了等高耕作、人工掏挖和人工鋤耕3項耕作措施對徑流能量的削減作用和減蝕作用。
  14. Experiments of artificial rainfall showed that sediment is the main body of total nutrient loss and runoff is the main body of available nutrient loss when erosion is slight, but sediment become the main body of total and available nutrient synchronously while erosion is intense. concentration of nutrient in runoff is most likely to be affected by concentration in topsoil. the higher concentration in topsoil is, the more possible nutrient loss by runoff is

    人工降雨實驗結果表明，在降雨強度和侵蝕強度不大時，侵蝕泥沙是全量養分流失的主體，地表徑流則是速效養分流失的主體；而當在降雨強度和侵蝕強度極為劇烈時，侵蝕泥沙成為全量養分和速效養分二者流失的主要載體；地表徑流中的養分含量很大程度上受土壤中養分含量的影響，土壤中養分含量越高，養分徑流流失的可能性越大。
  15. The paper establishes a mathematical model for calculating soil erosion modulus and a method for calculating new soil loss by using annual rainfall data and individual rainfall data, taking the outcomes of tests and study of natural rainfall, artificial rainfall and washout as a basis, rainfall erosion force, soil resistance to erosion and ground slope as main factors and combining with the study on new soil loss in typical regional development and construction

    摘要以天然降雨、人工降雨、放水沖刷等試驗研究成果為基礎，結合典型區域開發建設新增土壤流失分析的研究成果，以降雨侵蝕力、土壤抗沖性和地面坡度為主要因子，建立了用年降雨資料和次降雨資料計算土壤侵蝕模數的數學模型和開發建設新增土壤流失量的計算方法。
  16. Favorable conditions of artificial rain increase and conceptual models for multi - scale rainfall in the study province

    4 .河南人工增雨有利條件及多尺度人工增雨概念模型。
  17. Since the early nineties last century, machine learning techniques such as artificial neural networks ( ann ) have been attempted in flood forecast areas, such as rainfall - runoff modeling and stream flow forecasting, with some valuable experiences achieved. this paper presents several precise, reliable and practical flood forecast models based on some new style learning machines. their performances were valued in case studies

    本文結合機器學習技術，從尋找易用的、準確的、可靠的、實用性強的洪水預報方法的角度出發，建立了多種基於新型的學習機器的洪水預報模型，並通過這些模型在實例中的表現，對它們的性能進行了評價，提出了幾種基於學習機器的洪水預報解決方案。
  18. In this thesis, with eight events of artificial water - washing test on five different slope gradients, factors affecting soil potassium loss by erosion, such as slope gradient, rain intensity, vegetation coverage, and amount of rainfall are discussed

    本文通過在5個不同坡度徑流小區進行的8次人工模擬沖刷試驗，探討了坡度、放水沖刷強度、植被和降雨量等因素對土壤鉀素徑流流失的影響。
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