| 垂直方向静力适应过程的机理研究 |
| |
| 引用本文： | 崔新东,刘宇迪,艾细根,王璐华,王敏威.垂直方向静力适应过程的机理研究[J].气象科学,2015,35(4):462-467. |
| |
| 作者姓名： | 崔新东 刘宇迪 艾细根 王璐华 王敏威 |
| |
| 作者单位： | 解放军理工大学 气象海洋学院, 南京 211101,解放军理工大学 气象海洋学院, 南京 211101,解放军理工大学 气象海洋学院, 南京 211101,解放军理工大学 气象海洋学院, 南京 211101,解放军94783部队, 浙江湖州 313100 |
| |
| 基金项目： | 国家自然科学基金面上项目(41175089) |
| |
| 摘 要： | 为了研究垂直方向静力适应过程的机理,通过垂直方向静力适应方程组导出适应过程的守恒量、适应终态和解析解,并对解析解进行数值模拟。研究结果表明:适应终态是由初始守恒量和基本场决定。垂直速度解析解是由声波和地面反射的声波组成。随着高度的增加,垂直速度呈现e的负指数衰减。适应时间依赖于初始扰动的强度和空间尺度,扰动值越大,范围越广,适应时间越长。浮力振荡频率值的大小影响适应范围,当浮力振荡频率值减小,静力适应影响范围将更广。
|
| 关 键 词： | 动力气象 静力适应过程 守恒量 适应终态 解析解 |
| 收稿时间： | 2013/10/14 0:00:00 |
| 修稿时间： | 2014/1/17 0:00:00 |
Mechanism study on vertical hydrostatic adjustment procedure |
| |
| CUI Xindong,LIU Yudi,AI Xigen,WANG Luhua and WANG Minwei.Mechanism study on vertical hydrostatic adjustment procedure[J].Scientia Meteorologica Sinica,2015,35(4):462-467. |
| |
| Authors: | CUI Xindong LIU Yudi AI Xigen WANG Luhua and WANG Minwei |
| |
| Institution: | College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101, China,College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101, China,College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101, China,College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101, China and Unit 94783 of PLA, Zhejiang Huzhou 313100, China |
| |
| Abstract: | In order to study the mechanism of the vertical hydrostatic adjustment procedure, the conserved quantity, final equilibrium state and analytical solution of the procedure are deduced through the vertical hydrostatic adjustment equations, and then the analytical solution is numerically simulated. The results show that the final equilibrium state is determined by the initial conserved quantity and the basic state variables, and the analytical solution of vertical speed is consisted of the acoustic wave and the ground-reflected acoustic wave. The vertical velocity decreases exponentially with the height. The adaptation time depends on the intensity and spatial scales of initial disturbance. The higher the intensity value is, the larger the spatial scale is and the longer the adaption procedure is. The value of buoyancy oscillation frequency affects the intensity of spatial range. When the buoyancy oscillation frequency value decreases, the hydrostatic adaption procedure affects a wider range. |
| |
| Keywords: | Dynamic meteorology Hydrostatic adjustment procedure Conserved quantity Final equilibrium state Analytical solution |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《气象科学》浏览原始摘要信息 |
| 点击此处可从《气象科学》下载免费的PDF全文 |
|
