Correlation Analysis of Short-Period Wave Activity in the Mesopause Region and F2 Layer of the Ionosphere

IF 0.9 Q4 OPTICS

Atmospheric and Oceanic Optics Pub Date : 2025-03-24 DOI:10.1134/S1024856024701513

I. V. Medvedeva, K. G. Ratovsky, M. V. Tolstikov

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Abstract

The paper presents the comparative analysis of day-to day variations in the mesopause temperature variability σTm and the peak electron density variability σNmF2 in the range of internal gravity wave (IGW) periods. The analysis was based on spectrometric and radiophysical measurements at the instrumental complex of Institute of Solar-Terrestrial Physics, Siberian Branch, Russian Academy of Sciences, in 2013–2018. The seasonal variations in σTm and σNmF2 averaged over all years showed a high correlation of IGW variability in the mesosphere and ionosphere with a maximum in the winter period. The values of the sliding correlation coefficients σTm and σNmF2 in the 27-day interval without time shift are low and grouped near zero (−0.042 ± 0.313). Accounting for the time shift leads to significant increase in correlation, the values of the correlation coefficients are grouped near ∼0.5 (0.504 ± 0.196). The paper discusses possible reasons for the correlation analysis results.

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中层顶区与电离层F2层短周期波活动的相关性分析

本文比较分析了内重力波周期范围内中层温度变化σTm和电子密度峰值变化σNmF2的逐日变化。该分析基于2013-2018年俄罗斯科学院西伯利亚分院日地物理研究所仪器综合体的光谱和辐射物理测量。各年平均σTm和σNmF2的季节变化表现出与中间层和电离层IGW变化的高度相关，冬季最大。在无时移的27 d时间间隔内，滑动相关系数σTm和σNmF2值较低，接近于0（−0.042±0.313）。考虑到时移导致相关性显著增加，相关系数的值在~ 0.5（0.504±0.196）附近分组。本文讨论了相关分析结果产生的可能原因。

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来源期刊

Atmospheric and Oceanic Optics OPTICS-

CiteScore

2.40

自引率

42.90%

发文量

期刊介绍： Atmospheric and Oceanic Optics is an international peer reviewed journal that presents experimental and theoretical articles relevant to a wide range of problems of atmospheric and oceanic optics, ecology, and climate. The journal coverage includes: scattering and transfer of optical waves, spectroscopy of atmospheric gases, turbulent and nonlinear optical phenomena, adaptive optics, remote (ground-based, airborne, and spaceborne) sensing of the atmosphere and the surface, methods for solving of inverse problems, new equipment for optical investigations, development of computer programs and databases for optical studies. Thematic issues are devoted to the studies of atmospheric ozone, adaptive, nonlinear, and coherent optics, regional climate and environmental monitoring, and other subjects.