Multiple "gust-layers" observed in the middle stratosphere
Multiple "gust-layers" observed in the middle stratosphere
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在平流层中部观察到多个“阵风层”
DOI：
10.1007/978-94-009-6390-0_7
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发表时间：
1984
影响因子：
5.8
通讯作者：
Hiroshi L. Tanaka
中科院分区：
文献类型：
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作者：
M. Yamanaka;Hiroshi L. Tanaka
给出了用气球观测平流层中部重力波和湍流的一些理论方面和快速结果。以前一些工作人员观察到的湍流层厚度，在理论上与重力内(惯性)波的临界水平和破碎水平之间的距离有关。据预测，该层的微观组织可能涉及多个“阵风层”。观测是用“改装的刺刺式”螺旋桨风速计进行的，它在气球下面扫描了600分钟的深度，持续了30多个小时。快速分析表明，平流层中层(海拔24-26公里)经常出现厚度为10-50分钟的多个“阵风层”。垂直切变在各层达到10-1 S-1，这可能足以产生湍流。通过对这些观测资料的扩展分析，可以得到波动量通量在中层大气中的输入信息。
Some theoretical aspects and quick results of a balloon observation of gravity waves and turbulence in the middle stratosphere are shown. Turbulence layer thickness, previously observed by some workers, is theoretically related to the distance between the critical level and breaking level of internal (inertia-) gravity waves. It is predicted that the microstructure in the layer may involve multiple" gust layers". The observation was carried out by using" adapted Gill-type" propeller anemometers which scanned through 600 min depth under the balloon for over 30 hours. Quick analyses demonstrate that multiple" gust layers" of 10-50 min thickness often appear in the middle stratosphere (altitude: 24-26 km). Vertical shear reaches 10-1 s-1 in the layers, which may be enough to generate turbulence. It is suggested that extended analyses of this observational data will give information on the input of wave momentum flux into the middle atmosphere.
分层结构不稳定性的基础研究
DOI：
--
发表时间：
2008
期刊：
Flow in Gravity-Currents OCEANS'08 MTS
影响因子：
--
作者：
Yugo Sanada;Yasuyuki Toda;Takeshi Nagasawa;Takehiro Shibuya
通讯作者：
Takehiro Shibuya