The Response of Constant-Density Balloons to Sinusoidal Variations of Vertical Wind Speeds.
The Response of Constant-Density Balloons to Sinusoidal Variations of Vertical Wind Speeds.
复制标题
恒定密度气球对垂直风速正弦变化的响应。
DOI：
10.1175/1520-0450(1971)010
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发表时间：
1971
期刊：
影响因子：
--
通讯作者：
W. H. Hoecker
中科院分区：
文献类型：
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作者：
S. Hanna;W. H. Hoecker
多年来，恒定密度气球一直用于垂直空气运动。只有一个这样的信号作为大气中空气运动的示踪物。一个气球是波出版。对于填充有轻于空气的气体的垂直正弦波，直到皮肤在1000英尺的高度和15分钟的周期是刚性的，获得的振幅和超压将导致气球轨迹低15%，并且气球在大气中漂浮在期望的高度，导致空气运动约20。Vergeiner和Li通过求解垂直阵风引起的eq高度来分析当气球偏离平衡时气球的响应，浮力将影响气球的运动。在这两个分析中，试图将其恢复到平衡高度。动态浮力和加速度阻力等。（1968）在边界层中飞行的气球出现在方程的右侧。(1)下面，检测到的垂直空气运动具有忽略不计的周期。Angell等人和其他人最近开始使用恒定水平气球，Booker和库珀（1965）以及Vergeiner和Lilly分析气球位置的垂直波动（1970），以研究形成的大气波，以便得出山脉背风面空气运动的统计数据。具有气球运动的垂直波浪运动。然而，气球并没有每秒几米的幅度和完美的垂直空气运动周期。发现了大于几分钟的方程式。Booker和库珀用数字计算机模拟了几种气球垂直速度的运动，求解了垂直正弦风运动h，气球响应正弦风的垂直运动，幅度范围在0.1和2.0 m之间
Constant-density balloons have been used for years vertical air motions. The response to only one such si as tracers of air motion in the atmosphere. A balloon is wave was published. For a vertical sine wave filled with a lighter-than-air gas until the skin is rigid nitude 1000 ft and period 15 min, the amplit and a superpressure is attained that will cause the the balloon trajectory was 15% low and the ballo balloon to float at a desired height in the atmosphere, led the air motion by~ 20. Vergeiner and Li When the balloon is displaced from this equilibrium analyzed the balloon's response by solving an eq height by a vertical wind gust, buoyant forces will of motion for the balloon. In these two analyses attempt to return it to the equilibrium height. Angell dynamic buoyancy and acceleration drag force et al.(1968) have flown balloons in the boundary layer appear on the right-hand side of Eq.(1) below and detected vertical air motions having periods on neglected. the order of 30 min. Constant-level balloons were used Angell et al. and others have recently begu by Booker and Cooper (1965) and Vergeiner and Lilly analyze the vertical fluctuations of balloon pos (1970) to study atmospheric waves that form to the in order to derive the statistics of air motions lee of mountain ranges. Vertical wave motions having balloon motions. However, the balloon does no magnitudes of several meters per second and periods perfectly to vertical air motions. The equatio greater than a few minutes were discovered. Booker motion for the vertical speed of several types of ballo and Cooper used a digital computer to simulate the was solved for vertical sinusoidal wind motions h vertical motion of a balloon responding to sinusoidal a range of magnitudes between 0.1 and 2.0 m