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- The main research progress of the relationship between aerodynamic roughness length and vegetation characteristics is summarized and analyzed in this paper. 本文系统地总结了近年来空气动力学粗糙度与植被特征关系的研究成果;分析了各种植被特征因素与空气动力学粗糙度的关系;并对影响空气动力学粗糙度的植被因素的研究方向进行了预测.
- Review of Aerodynamic Roughness Length 空气动力学粗糙度的物理与实践意义
- aerodynamics roughness length 空气动力学粗糙度
- Studies on Influences of Vegetation on Aerodynamic Roughness Length 植被条件对下垫面空气动力学粗糙度影响实验研究
- Estimation of the aerodynamic roughness length in arid and semi-arid regions over the globe with the ERS scatterometer 用地球资源卫星散射仪估算全球上空的干旱和半干旱地区的空气动力学粗糙度长度
- aerodynamic roughness length 空气动力学粗糙度
- The mean wind speed profile, the thickness of the atmospherics surface layer, the aerodynamics roughness and the turbulence intensity were obtained. 采用数值风洞方法和RNG 双方程湍流模型，模拟了在风洞中依靠边界层的自然增长所形成的大气表面层，得到了不同粗糙元配置条件下时均风速廓线、大气表面层厚度、空气动力学粗糙度和湍流度的变化规律。
- Roughness length during the flood phase is larger than that during the ebb phase, whilst shear velocity during the flood phase is smaller than that during the ebb phase. 涨潮阶段床面粗糙长度大于落潮阶段，涨潮阶段摩阻流速小于落潮阶段。
- The main parameters calibrated in the model are dispersion coefficient(a=0.07, b=0.7), roughness length(0.02m), wind drag coefficient(Cwd=3%), and evaporation rate(0.1/d). 经过率定后确定模型中主要参数值如下:扩散参数a=0.;07;扩散参数b=0
- A new method is proposed for the effective roughness length (ERL) in heterogeneous terrain based on the principle of equalization of momentum or heat fluxes calculated by the drag coefficient parameterization scheme used in the ECMWF numerical model. 利用湍流通量相等原理和ECMWF的总体湍流输送系数参数化方案,研究了气候数值模式中非均匀地表类型的有效粗糙度计算问题。
- Land surface models, e. g. Biosphere Atmosphere Transfer Scheme(BATS), estimate albedo of trees over snow roughly with the parameters of roughness length, Z 0, and snow depth, d . 目前在地表模型 (如BATS模型 )中 ,是通过空气动力学粗糙度Z0 与降雪深度d两个参数来估计雪地上树冠的反照率的。
- Roughness of the skin can be caused by bad diet. 饮食不好可能引起皮肤粗糙。
- dynamical transfer roughness length 动力传输粗糙度长度
- The aerodynamic roughness and residual stubble density as well as residual stubble height have good relativity, which is the form of exponential function, however they are to the degree of preventing erosion effect not same. 空气动力学平均粗糙度与作物秸秆残茬密度和高度之间存在着很好的相关性,都近似的表现为指数函数的形式,但作物秸秆残茬密度和残茬高度对空气动力学粗糙度即防风蚀效应的影响程度却不相同。
- The Determination of Roughness Length over City Surface 城市表面粗糙度长度的确定
- This rough track will soon be a metalled road. 这条坑坑洼洼的路不久就要铺上碎石了。
- My walking stick is the same length as yours. 我的拐杖和你拐杖长度一样。
- The ship pitched and tossed in the rough seas. 轮船在汹涌澎湃的大海中起伏颠簸。
- This car really comes into its own on rough ground. 这辆汽车在颠簸的路上才真正显示出它独特的性能。
- This car will turn in its own length. 这种汽车可以在自身长度范围内掉头。
