Spectral Structure of Temperature Variations in the Midlatitude Mesopause Region

被引：1

作者：

Perminov, V. I. ^{[1
]}

Semenov, A. I. ^{[1
]}

Medvedeva, I. V. ^{[2
]}

Pertsev, N. N. ^{[1
]}

Sukhodoev, V. A. ^{[1
]}

机构：

[1] Russian Acad Sci, AM Obukhov Inst Atmospher Phys, Moscow 119017, Russia

[2] Russian Acad Sci, Inst Solar Terr Phys, Siberian Branch, Irkutsk 664033, Russia

来源：

GEOMAGNETISM AND AERONOMY | 2018年 / 58卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

ROTATIONAL TEMPERATURE; HYDROXYL-EMISSION; MESOSPHERIC TEMPERATURE; SPACED DATA; AIRGLOW; VARIABILITY; MODEL;

D O I：

10.1134/S0016793218010139

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Long-term series of midnight temperature in the mesopause region have been obtained from spectral observations of hydroxyl airglow emission (OH(6-2) lambda 840 nm band) at the Tory station (52A degrees N, 103A degrees E) in 2008-2016 and Zvenigorod (56A degrees N, 37A degrees E) station in 2000-2016. On their basis, the Lomb-Scargle spectra of the variations in the period range from similar to 12 days to similar to 11 years have been determined. Estimates of the amplitudes of statistically significant temperature fluctuations are made. The dominant oscillations are the first and second harmonics of the annual variation, the amplitudes of which are 23-24 K and 4-7 K, respectively. The remaining variations, the number of which was 16 for the Tory and 22 for Zvenigorod stations, have small amplitudes (0.5-3 K). Oscillations with combinational frequencies, which arise from modulation of the annual variation harmonics, are observed in a structure of the variation spectra in addition to interannual oscillations (periods from similar to 2 to similar to 11 years) and harmonics of the annual variation (up to its tenth harmonic).

引用

页码：127 / 134

页数：8

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