搜索结果: 1-15 共查到“理学 Ekman”相关记录25条 . 查询时间(0.059 秒)
Ekman Mass and Heat Transport in the Indonesian Seas
Ekman Mass Heat Transport Indonesian Seas
2015/7/28
The Indonesian throughflow (ITF) is the flow of warm, relatively fresh waters into the southeast Indian Ocean from the western Pacific Ocean via the series of passages between the islands of the Indon...
极地大气行星边界层动力过程及其对全球大气环流的影响是大气科学研究关注的重要问题. 利用中国南极昆仑站2012和2013年夏季高分辨率的GPS探空资料，对南极高原大气边界层的动力特征进行了研究. 结果表明，南极高原观测风随高度的变化规律与理论计算的Ekman螺旋曲线基本一致. 风速随高度增加快速、风向左转. 这是在南半球观测到的显著Ekman垂直结构特征. Ekman动力边界层的厚度较高，平均从90...
On the global estimates of geostrophic and Ekman surface currents
drifter buoys Lagrangian trajectory applications ocean circulation and dynamics
2014/4/1
Surface currents in oceanic environments are of crucial importance because they transport momentum, heat, salt, and tracers over large distances that regulate both the local and large-scale climate co...
波浪对Ekman层的能量输入
Ekman层 能量输入 风能输入 波浪能量输入
2009/5/18
基于海洋Ekman层流速剖面结构受波浪影响的3点观测事实, 研究了波浪对Ekman层的机械能输入, 在常涡粘系数的假定下得到了波浪对Ekman层能量输入的解析表达式. 研究结果表明, 海洋Ekman层的机械能输入包括两部分: 一是风应力对Ekman层的直接能量输入, 其受波浪的影响; 二是波浪对Ekman层的能量输入, 其与风应力、波浪参数和波向与风应力的相对方向有关. 估计了波浪对Ekman层能...
An Ekman Model of Coastal Currents in a Lake or Shallow Sea
Ekman Model Coastal Currents Shallow Sea
2009/4/2
Coastal currents are investigated by use of asymptotic solutions in a steady-state barotropic lake or shallow sea of variable depth, with only vertical eddy viscosity and zero Rossby number. Earlier w...
A Numerical Study of Time-Dependent Turbulent Ekman Layers over Horizontal and Sloping Bottoms
Time-Dependent Turbulent Ekman Layers Sloping Bottoms Horizontal
2009/3/24
A numerical study is made of a time-dependent turbulent Ekman bottom boundary layer. Parameters for the model were chosen to simulate conditions near the bottom of the Florida Current in the Straits o...
Realistic Model of the Wind-Induced Ekman Boundary Layer
Realistic Model Wind-Induced Ekman Boundary Layer
2009/3/7
A physically realistic and general model for the vertical eddy viscosity in a homogeneous fluid is proposed. For an infinitely deep ocean the vertical eddy viscosity increases linearly with depth from...
A Simple Ekman-Type Model for Predicting Thermocline Displacement in the Tropical Pacific
Ekman-Type Model Tropical Pacific Thermocline Displacement
2009/2/23
A linear model is developed for the near-equatorial zone to estimate wind-driven convergences in the near-surface viscous boundary layer. Using the winds observed during EASTROPAC, an attempt is made ...
The Role of Ekman flow and Planetary Waves in the Oceanic Cross-Equatorial Heat Transport
Ekman flow Oceanic Cross-Equatorial Heat Transport Planetary Waves
2009/2/16
A numerical model is used to mechanistically simulate the oceans’ seasonal cross-equatorial heat transport, and the results of Oort and Vonder Haar (1976). The basic process of Ekman pumping and drift...
Stability of Free Surface Ekman Layers
Free Surface Ekman Layers wavenumbers α independent parameters
2009/2/5
The stability of free surface, laminar Ekman layers is examined for both the homogeneous and the two-layer case. The eigenvalues of the homogeneous case depend upon the wavenumbers α and &ggr; and the...
Dispersion of Marked Fluid Elements in a Turbulent Ekman Layer
stochastic model Fluid Elements Turbulent Ekman Layer
2009/1/13
A stochastic model is derived for studying shear-dispersion in a horizontally homogeneous, turbulent Ekman layer that is evolving in time. It is based on a one-dimensional model including an advanced ...
Meridional Ekman Heat Fluxes for the World Ocean and Individual Ocean Basins
Heat Fluxes Individual Ocean Basins World Ocean
2009/1/8
Monthly climatological estimates of wind stress and sea surface temperature are used to compute meridional Ekman heat fluxes in the world ocean. Qualitatively the annual cycles of the Atlantic and Pac...
Ekman Volume Fluxes for the World Ocean and Individual Ocean Basins
Ekman Volume Fluxes World Ocean Individual Ocean Basins
2009/1/5
Monthly climatological estimates of wind stress have been used to compute Ekman volume fluxes in the world ocean. Specifically, meridional and zonal Ekman volume fluxes have been computed and from the...
A Comparison of Measured and Wind-derived Ekman Transport at 11°N in the Atlantic Ocean
Wind-derived Ekman Transport 11°N Atlantic Ocean
2008/12/23
A comparison of measured and wind-derived ageostrophic transport is presented from a zonal transect spanning the Atlantic Ocean along 11°N. The transport per unit depth shows a striking surface maximu...
Equilibrium Response of Ocean Deep-Water Circulation to Variations in Ekman Pumping and Deep-Water Sources
North Atlantic Deep Water Antarctic Bottom Water Ocean Deep-Water Circulation
2008/12/23
A multilayer ocean model that is physically simple and computationally efficient is developed for studies of competition and interaction among deep-water sources in determining ocean circulation. The ...