Statistical characteristics of mesoscale fluctuations of wind velocity, temperature, and gas concentrations obtained from aircraft measurements in the troposphere of the Arctic region

IF 3 3区地球科学 Q2 METEOROLOGY & ATMOSPHERIC SCIENCES Journal of the Atmospheric Sciences Pub Date : 2023-10-13 DOI:10.1175/jas-d-23-0021.1

I. Chunchuzov, O. Chkhetiani, S. Kulichkov, O. Popov, B Belan, A. Fofonov, G Ivlev, A. Kozlov

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Abstract

Abstract The results of airborne measurements and statistical characteristics of mesoscale fluctuations of wind velocity, temperature and concentrations of gas constituents at different heights of stably stratified troposphere are presented. The measurements were carried out in September 2022 in the Arctic region of Russia with the aircraft-laboratory Tu-134 "Optik". The obtained spectra and structure functions of the fluctuations are interpreted with the theoretical model of formation of the spectrum of mesoscale wind velocity and temperature fluctuations described in the paper. The presence at high wave numbers of a steep section in the obtained horizontal wave number spectra of the fluctuations of wind velocity and greenhouse gas concentration with a slope close to −3 is discussed. The fluctuation spectra along different slanted tracks of the aircraft crossing the tropospheric layer between altitudes of 1 and 9 km are also obtained and analyzed with the theoretical model.

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北极地区对流层中风速、温度和气体浓度中尺度波动的统计特征

摘要本文介绍了稳定分层对流层不同高度风速、温度和气体组分浓度中尺度波动的航空测量结果和统计特征。这些测量于2022年9月在俄罗斯北极地区由Tu-134“Optik”飞机实验室进行。用文中描述的中尺度风速和温度波动谱形成的理论模式解释了所得到的波动谱和结构函数。讨论了风速和温室气体浓度波动的水平波数谱在坡度接近- 3的水平波数谱中，在高波数处存在的问题。在1 ~ 9 km高度范围内，得到了飞机在不同倾斜轨迹上的波动谱，并用理论模型进行了分析。

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来源期刊

Journal of the Atmospheric Sciences 地学-气象与大气科学

CiteScore

0.20

自引率

22.60%

发文量

196

审稿时长

3-6 weeks

期刊介绍： The Journal of the Atmospheric Sciences (JAS) publishes basic research related to the physics, dynamics, and chemistry of the atmosphere of Earth and other planets, with emphasis on the quantitative and deductive aspects of the subject. The links provide detailed information for readers, authors, reviewers, and those who wish to submit a manuscript for consideration.