A universal spectrum of buoyancy waves in the atmosphere
A universal spectrum of buoyancy waves in the atmosphere
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DOI：
10.1029/gl009i005p00575
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发表时间：
1982-05
影响因子：
5.2
通讯作者：
T. Vanzandt
中科院分区：
文献类型：
--
作者：
T. Vanzandt
虽然自由大气中的风和温度的中尺度波动已经被观测了很多年，但对于引起它们的过程还没有任何共识。本文将表明，从惯性周期（中高纬度12 ~ 24小时）到浮力或Brunt-Vfiisfilfi周期（对流层和平流层下部5 ~ 10分钟）以及相应的水平和垂直波长范围内的中尺度风波动的功率谱，可以用重力或浮力内波的普适谱来描述。该谱是对加勒特和蒙克（1972，1975）成功引入的描述海洋中尺度（或精细结构）参数谱的通用谱的轻微修改。（以下将加勒特和芒克的论文称为通用汽车）。
Although mesoscale fluctuations of wind and temperature in the free atmosphere have been observed for many years, there is not yet any consensus on the processes that cause them. In this paper it will be shown that the power spectra of mesoscale wind fluctuations from the inertial period (12 to 24 hours in middle to high latitudes) to the buoyancy or Brunt-Vfiisfilfi period (5 to 10 minutes in the troposphere and lower stratosphere) and in corresponding ranges of horizontal and vertical wavelengths can be described in terms of a universal spectrum of internal gravity or buoyancy waves. This spectrum is a slight modification of the universal spectrum successfully introduced by Garrett and Munk (1972, 1975) to describe the mesoscale (or fine-structure) spectra of parameters in the ocean.(Hereafter papers by Garrett and Munk will be denoted GM).