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  advection
     RH20 was positive correlated with TJ20 and Tq20. The advection of V200 could reduce TJ20 and Tq20. And the stepwise regression by Tq150, TinS and V200 was fitting well.
     RH20与TJ20和TQ20正相关。 V200的平流作用具有降低TJ20和TQ20的作用。
短句来源
     Potential ability of prediction the advection fog by WRF model is proved to some extent.
     WRF模式对平流雾的形势及物理量场的模拟是成功的,显示了WRF模式预报平流雾的潜在能力.
短句来源
     and air advection to leeward (600t/a) and degradation in soil (133t/a) are the key routes for HCHs to disappear from the study area.
     而土壤中的降解(133t/a,79.7%)和气平流输出(600t/a,17.6%)则是HCHs从研究区域消失的最主要途径;
短句来源
     The simulating results indicate that during the period when HCHs was largely applied, the main source of HCHs is agricultural application (134t/a) and air advection (623t/a) from windward, which accounting for 92% of the overall input;
     计算结果表明,在持续用药期间,HCHs的主要来源是农业施用(134t/a)和气平流输入(623t/a),约占总输入量的92%;
短句来源
     (2)The asymmetrical structure of the middle & low level cold and warm advection is the important factor for cyclone's development.
     (2 )在发展阶段 ,70 0 h Pa层以下的温压场的斜压结构是气旋发展的重要因素 ,当冷平流与暖平流呈现西北—东南的偶极子型时 ,气旋发展 ;
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  advective
     Starting from the advective diffusion equation, by choicing the diffusion coefficient and solving the differential term with respect to time for the equation, a predication model for the concentration field suitable for the condition of neutral atmosphere is set up.
     从平流扩散方程出发,通过对方程中扩散系数的选择及时间微分项的求解,建立了一个适合中性大气条件的浓度场预测模式。
短句来源
     The change of the TSP pollution situation caused by the variation of the pollutant source emission over Lanzhou Xigu district in 2000 was predicted using the advective and Gaussian diffusion model over complex terrian.
     以复杂地形上的平流扩散模式和高斯扩散模式相结合,首先预测了由于污染源排放量的变化所引起的2000年兰州西固区TSP污染状况的变化。
短句来源
     The City Air Pollution Numerical Prediction System (CAPPS) consists of MM5 (or MM4) and the multi scale grid box model based on the integral of the atmospheric advective dispersion equation.
     城市空气污染数值预报系统CAPPS ,是在ADPIC的概念的基础上经过积分求得的大气平流扩散的多尺度箱格预报模型。
短句来源
     Treatment of the Oily Waste Water in the Residue Oil Tank Zone by Advective Separation of Oil-Blending-Solidification Gas-Floating-Coke Filtration Process
     平流隔油-混凝气浮-焦炭过滤工艺处理渣油罐区含油废水
短句来源
     Oxygen isotope exchange and flow geometry of meteoric-derived water within an alkali granite pluton: exchange mechanism and advective cooling.
     碱性花岗岩的动力学氧同位素交换和流体流动几何学:交换机制和平流冷却
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  advection of
     RH20 was positive correlated with TJ20 and Tq20. The advection of V200 could reduce TJ20 and Tq20. And the stepwise regression by Tq150, TinS and V200 was fitting well.
     RH20与TJ20和TQ20正相关。 V200的平流作用具有降低TJ20和TQ20的作用。
短句来源
     The upper layer heat storage, atmosphere elements and the thermal advection of North Pacific has been analyzed here on the basis of some variable data from JEDAC, NCEP, SODA and WOCE.
     本文利用JEDAC、NCEP、SODA、WOCE等资料,对北太平洋上层热含量、大气要素场以及平流热输送和验潮站水位进行了系统的分析,研究表明:
短句来源
     The temperature advection and generalized temperature advection of the yesterday data for the severe storm processes in boundary region of Hubei,Jiangxi and Anhui provinces in April of 1994 and 8 other cases in history, are calculated and analysed.
     利用1994年4月6—7日发生在鄂、赣、皖交界地区的强风暴过程和8次历史个例,对其前一日资料作了温度平流和广义温度平流的计算分析。
短句来源
     The results show that the formation mechanisms of the event are as follows. (1) The strong warm advection of 500hPa over the west Europe led to a blocking high created in Siberia area, and a zonal though, the north-east stream in the north edge of the though led to super polar cold air and the cold air from west together and got to strengthen, and then the abnormally strong cold high, front zone, cold temperature center and cold temperature advection appear.
     结果表明:这次寒潮及寒潮天气主要成因是(1)西欧上空500hPa强暖平流致使在西伯利亚地区形成阻塞高压,建立横槽,横槽北侧的东北气流引导超极地冷空气和西路冷空气合并加强; 形成了异常强的冷高压、锋区、冷温度中心和冷温度平流
短句来源
     Numerical Simulation of the Linear Advection of Cosine Bell on the Cube Sphere
     立方球体坐标下余弦钟绕球平流的数值模拟
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  “平流”译为未确定词的双语例句
     Loev- Power CO_2 Laser for the Treatment of Plain warts in 32 Cases
     低功率CO_2激光治疗扁平流疣32例报告
短句来源
     (2) Electrical desalting process and electrical desalting tank are innovated twice, and rat cage electrical desalting technology is used to reduce the mole fraction of the salt to 1.45 mg/L from 8.74 mg/L, the mole fraction of water to 0.11% from 0.43%, desalting rate is increased from 81.4% to 96.4%.
     (2)先后2次改造电脱盐流程及电脱盐罐,并应用鼠笼式平流电脱盐技术,使脱后含盐质量分数由8.74mg/L降为1.45mg/L,含水的质量分数由0.43%降为0.11%,脱盐率由81.4%增加到96.4%。
短句来源
     For the latter the surface loading rate can be calculated by formulaQ/ A = u0 (1 +l/d cosθsinθ) from catchment velocity, which ranges from 0. 13 to 0. 23 mm/s designed in this country.
     并认为平流沉淀池与斜管沉淀池的截留沉速不相同,斜管池的表面负荷率与截留沉速之间的计算式为Q/A=u_0(1+lcosθsinθ/d),我国斜管沉淀池的截留沉速是0.13~0.23mm/s.
短句来源
     p))·▽θ_(se)).
     p) 引起的θse 平流
短句来源
     Spatial distribution of water balance closure errors for Advection-Aridity model is similar to that of Granger model.
     平流-干旱模型与Granger模型的水量平衡闭合误差空间分布比较一致,计算效果是比较理想的,而CRAE模型的水量平衡闭合误差比较大。
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  advection
The downward advection of trophogenic waters was found to create conditions for the extensive growth of microorganisms capable of decomposing and mineralizing organic carbon, nitrogen, and phosphorus in deep water layers.
      
The mixing of the seawater and groundwater occurs as a result of advection processes, the most important of which is wave percolation.
      
The equation of advection-diffusion transport of a reactive solute in a stream is solved by different methods.
      
A simple procedure is proposed for predicting this concentration based on an advection-diffusion model and field observational data.
      
Equations of flow in water-saturated porous medium and advection diffusion of dissolved salts are used to study salt transport and accumulation in subsoil water.
      
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  advective
Effect of high-frequency vibrations on the stability of advective flow
      
The results of calculating the regime of formation of an intense vortex from a large-scale advective cell are given.
      
Effect of Rotation on the Stability of Advective Flow in a Horizontal Fluid Layer at a Small Prandtl Number
      
The stability of advective flow in a rotating infinite horizontal fluid layer with rigid bound-aries is investigated for a small Prandtl number Pr = 0.1 and various Taylor numbers for perturbations of the hydrodynamic type.
      
Experimental investigation of helicoidal rolls in an advective flow over a hot horizontal surface
      
更多          
  advection of
The downward advection of trophogenic waters was found to create conditions for the extensive growth of microorganisms capable of decomposing and mineralizing organic carbon, nitrogen, and phosphorus in deep water layers.
      
We consider advection of a passive scalar θ(t,r) by an incompressible large-scale turbulent flow.
      
Advection of passive tracers in an unsteady hydrodynamic flow consisting of a background stream and a vortex is analyzed as an example of chaotic particle scattering and transport.
      
Intense advection of cold air at the rear of the cyclone can lead to the development of an unstable stratification in the atmospheric boundary layer even in the nighttime.
      
We investigate experimentally the advection of a magnetic field by a flow of conducting fluid, at moderate magnetic Reynolds numbers.
      
更多          


~~

本文根据在铅直方向積分了的涡度方程和一个经验式,用高空温压场的耩造表示地球转风涡度平流、熟成风涡度平流和温度平流对气压倾向的作用,从而得到预报气压变化的一些定性的规则。

Integrating with respect to time the equation for the balance of angular momentum of the atmosphere north of certain latitude (30°N say)we obtainIn the above equation ρ is thedensity; (?), the zonal wind; v, the meridional wind; R, the earth's radius; Ω, the angular speed-of the earth's rotation; dm, the mass element of the atmosphere; dτ, the volume element; ds, the area element on the earth's surface, and dσ, the urea element on the vertical surface over the latitudial circle of 30°N. The first two terms (in...

Integrating with respect to time the equation for the balance of angular momentum of the atmosphere north of certain latitude (30°N say)we obtainIn the above equation ρ is thedensity; (?), the zonal wind; v, the meridional wind; R, the earth's radius; Ω, the angular speed-of the earth's rotation; dm, the mass element of the atmosphere; dτ, the volume element; ds, the area element on the earth's surface, and dσ, the urea element on the vertical surface over the latitudial circle of 30°N. The first two terms (in the parenthesis) On the left side of (2) are evaluated from the mean westerlies in summer and winter given by Mintz. The last two terms on the left and the first two terms on the right side of (2) are evaluated from the mean surface pressure charts of July and January. The transfer of angular momentum across latitude 30°N given by Starr and White is used to evaluate the 3rd. term on the right. Then the value of the last two terms in the parenthesis on the right of (2) is calculated. The result agrees very well with that obtained by other authers.It is further found that: 1. From summer to winter the transfer of angular momentum from low to high latitudes by gross weather systems overcompensates the destruction by the earth's surface. The small residue of these two factors acounts for the main part (about85%)of increase of westerly circulation from summer to winter. The remaining small part of the increase of the westerly circulation may be acounted for by the advection of mass of the atmosphere, which carries the angular momentum due to earth's rotation (difference between the first two terms on the right and the last two terms on the left side of (2)).2. The transfer of angular momentum or the destruction of angular momentum, as well as the intensity of the westerly circulation has annual variation. However this annual variation is not of sine or cosine type, i,θ, the variation from summer to winter is not the opposite of that from winter to. summer. The property of this asymmetry is explained by the irreversible heat addition and subtraction. From winter, to summer heat is added to, and summer to winter heat is subtracted from the atmosphere (N.H.). Since the process of adding and subtracting heat is irreversible, the variation from summer to winter can not be symmetric to that from winter to summer.3. Transfer of angular momentum from easterlies to westerlies occurs mainly in the period of breakdown of zonal circulation (low index), mainly in the belt of longitudes of"extended troughs" (troughs extending from high to low latitudes) and "extended ridges" (ridges extending from low to highlatitudes), and mainly in the high levels of the atmosphere.

把30°N以北大气角動量平衡方程由七月積分到一月,則其中各項都可計算:此緯度以北大气相对西風角動量的改变可用Mintz平均西風冬夏分佈圖算出;地轉角動量的改变可用冬夏地面平均气压圖算出;通过30°N緯度的角動量的渦動輸送已为Starr和White算出,因此利用積分結果可求得30°N以北地面应力和山脈东西兩側气压差所引起的角動量消耗,結果与别的作者用别的方法所得數值極为符合。 作者更指出: 1.从夏到冬大型天气系統的角动量輸送勝过地面摩擦的消耗,从夏到冬西風环流增强的主要部分(約85%)即由於二者之差,西風环流增强的其餘一小部分則由於大气的質量平流,而引起地轉角動量的傳送。 2.角動量的输送,角動量的消耗以及西風环流强度都有年变化。但这种年变化並非正餘弦型,即从夏到冬的变化並不正是从冬到夏变化的反面,此种非对称性可由加熱过程和减熱过程的不可逆性解釋。在北半球从冬到夏对大气來说是加熱的,而从夏到冬大气失去熱量,因为加熟过程和減熱过程都不是可逆的,故从夏到冬的变化也不与从冬到夏的变化对称。 3.东風帶向西風帶的角動量輸送,主要發生於西風环流破坏的時候;主要發生於“引伸槽”和“引伸脊”的經度帶;同時也主要...

把30°N以北大气角動量平衡方程由七月積分到一月,則其中各項都可計算:此緯度以北大气相对西風角動量的改变可用Mintz平均西風冬夏分佈圖算出;地轉角動量的改变可用冬夏地面平均气压圖算出;通过30°N緯度的角動量的渦動輸送已为Starr和White算出,因此利用積分結果可求得30°N以北地面应力和山脈东西兩側气压差所引起的角動量消耗,結果与别的作者用别的方法所得數值極为符合。 作者更指出: 1.从夏到冬大型天气系統的角动量輸送勝过地面摩擦的消耗,从夏到冬西風环流增强的主要部分(約85%)即由於二者之差,西風环流增强的其餘一小部分則由於大气的質量平流,而引起地轉角動量的傳送。 2.角動量的输送,角動量的消耗以及西風环流强度都有年变化。但这种年变化並非正餘弦型,即从夏到冬的变化並不正是从冬到夏变化的反面,此种非对称性可由加熱过程和减熱过程的不可逆性解釋。在北半球从冬到夏对大气來说是加熱的,而从夏到冬大气失去熱量,因为加熟过程和減熱过程都不是可逆的,故从夏到冬的变化也不与从冬到夏的变化对称。 3.东風帶向西風帶的角動量輸送,主要發生於西風环流破坏的時候;主要發生於“引伸槽”和“引伸脊”的經度帶;同時也主要發生於大气的高層。

A cold air outbreak with simple synoptical process is selected as an example for this investi-gation.The field of the upper horizontal temperature and the structure of the cold front arediscussed.As the front moves from north to south over China,the slope of the front in thelower level steepens and its intensity increases.In the late stage of the cold air outbreak,theupper horizontal temperature field changes rapidly.Computation by frontogenetic formulashows that the term of differential temperature advection...

A cold air outbreak with simple synoptical process is selected as an example for this investi-gation.The field of the upper horizontal temperature and the structure of the cold front arediscussed.As the front moves from north to south over China,the slope of the front in thelower level steepens and its intensity increases.In the late stage of the cold air outbreak,theupper horizontal temperature field changes rapidly.Computation by frontogenetic formulashows that the term of differential temperature advection is predominant.

本文选择了一次大气物理过程比较简单的寒潮作为例子,讨论其温度场及冷锋的构造。事实看出,寒潮前沿的冷锋,在黄河流域时与在华南时,构造是不同的。本文对于锋的构造的改变进行了初步的讨论。再者,寒潮末期的高空温度场改变很大,作者试用锋生公式计算,结果指出,温度平流值的变化起着主导作用。

 
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