Statistical analysis on orographic atmospheric gravity wave and sporadic E layer

IF 1.8 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Journal of Atmospheric and Solar-Terrestrial Physics Pub Date : 2024-05-10 DOI:10.1016/j.jastp.2024.106256

Yi Liu , Zhou Chen , Zhiqiang Fan , Chen Zhou , Xiang Wang , Yuqiang Zhang , Yufeng Zhou , Ting Lan , Haiyin Qing

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Abstract

In this study, we present the statistical features of gravity wave (GW) and sporadic E layer (E_S) by using the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) data aboard the Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) satellite and Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occulation measurements during 2007–2018. Statistical analysis of occurrences of GW and E_S shows that daytime GW and E_S are frequently observed on the eastern sides of the Tibetan plateau during summer, while less consistency between nighttime GW and E_S occurrences was presented in our observations. The concurrence of GW and E_S shows that nearly 60% E_S occurred simultaneously with local strong GW occurrence. These results provide observational evidence suggesting that the effect of strong GW activities is significant in the generation of E_S.

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陆地大气重力波和零星 E 层的统计分析

本研究利用热层电离层中间层能量和动力学卫星（TIMED）上的大气探测宽带发射辐射计（SABER）数据以及气象、电离层和气候星座观测系统（COSMIC）2007-2018年期间的无线电发生测量数据，介绍了重力波（GW）和零星E层（ES）的统计特征。对 GW 和 ES 出现情况的统计分析表明，夏季青藏高原东部地区白天经常观测到 GW 和 ES，而夜间观测到的 GW 和 ES 出现情况一致性较差。从 GW 和 ES 的同时性来看，近 60% 的 ES 与局地强 GW 同时出现。这些结果提供了观测证据，表明强 GW 活动对 ES 的产生具有重要影响。

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来源期刊

Journal of Atmospheric and Solar-Terrestrial Physics 地学-地球化学与地球物理

CiteScore

4.10

自引率

5.30%

发文量

审稿时长

6 months

期刊介绍： The Journal of Atmospheric and Solar-Terrestrial Physics (JASTP) is an international journal concerned with the inter-disciplinary science of the Earth''s atmospheric and space environment, especially the highly varied and highly variable physical phenomena that occur in this natural laboratory and the processes that couple them. The journal covers the physical processes operating in the troposphere, stratosphere, mesosphere, thermosphere, ionosphere, magnetosphere, the Sun, interplanetary medium, and heliosphere. Phenomena occurring in other "spheres", solar influences on climate, and supporting laboratory measurements are also considered. The journal deals especially with the coupling between the different regions. Solar flares, coronal mass ejections, and other energetic events on the Sun create interesting and important perturbations in the near-Earth space environment. The physics of such "space weather" is central to the Journal of Atmospheric and Solar-Terrestrial Physics and the journal welcomes papers that lead in the direction of a predictive understanding of the coupled system. Regarding the upper atmosphere, the subjects of aeronomy, geomagnetism and geoelectricity, auroral phenomena, radio wave propagation, and plasma instabilities, are examples within the broad field of solar-terrestrial physics which emphasise the energy exchange between the solar wind, the magnetospheric and ionospheric plasmas, and the neutral gas. In the lower atmosphere, topics covered range from mesoscale to global scale dynamics, to atmospheric electricity, lightning and its effects, and to anthropogenic changes.