Solar Activity Effects on Gravity Wave Activity Inferred from Radio Wave Absorption in the Lower Ionosphere

被引:0
作者
J. Laštovička
机构
[1] Acad. Sci. Czech Republic,Institute of Atmospheric Physics
来源
Studia Geophysica et Geodaetica | 1999年 / 43卷
关键词
gravity waves; lower ionosphere;
D O I
暂无
中图分类号
学科分类号
摘要
The low frequency (LF) nighttime radio-wave absorption in the lower ionosphere has been measured at Průhonice (50°N, 15°E) in central Europe for over 35 years. Digital measurements, performed since summer 1988, allow absorption oscillations in the period range 10 – 180 mins, which are believed to reflect gravity wave activity, to be derived. Unfortunately, problems with the transmitter in recent years terminated the evaluation of gravity wave activity. The analysis of the available information (∼6 years of data) allows two conclusions to be drawn as to the effects of the solar activity on gravity wave activity: (1) there is no detectable effect of the solar ∼27-day variation on gravity wave activity; (2) there is an indication that the positive effect of the 11-year solar cycle on gravity wave activity in the winter half of the year is remarkable (lack of data in summer). The result concerning the solar cycle effect is, to a certain extent, preliminary, because the available data do not cover a complete solar cycle. A comparison with results from other stations and an interpretation of results are presented.
引用
收藏
页码:107 / 128
页数:21
相关论文
共 50 条
[41]   Gravity Wave Activity in the Atmosphere of Mars During the 2018 Global Dust Storm: Simulations With a High-Resolution Model [J].
Kuroda, Takeshi ;
Medvedev, Alexander S. ;
Yigit, Erdal .
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2020, 125 (11)
[42]   The Gravity Wave Activity during Two Recent QBO Disruptions Revealed by US High-Resolution Radiosonde Data [J].
Li, Haiyan ;
Zhang, Jian ;
Sheng, Bosi ;
Fan, Yi ;
Ji, Xuanting ;
Li, Qingxiang .
REMOTE SENSING, 2023, 15 (02)
[43]   A review of vertical coupling in the Atmosphere-Ionosphere system: Effects of waves, sudden stratospheric warmings, space weather, and of solar activity [J].
Yigit, Erdal ;
Knizova, Petra Koucka ;
Georgieva, Katya ;
Ward, William .
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, 2016, 141 :1-12
[44]   Lower stratospheric gravity wave activity over Gadanki (13.5°N, 79.2°E) during the stratospheric sudden warming of 2009: Link with potential vorticity intrusion near Indian sector [J].
Nath, D. ;
Sridharan, S. ;
Sathishkumar, S. ;
Gurubaran, S. ;
Chen, W. .
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, 2013, 94 :54-64
[45]   Comparative study of interannual changes of the mean winds and gravity wave activity in the middle atmosphere over Japan, Central Europe and Canada [J].
Gavrilov, NM ;
Fukao, S ;
Nakamura, T ;
Jacobi, C ;
Kürschner, D ;
Manson, AH ;
Meek, CE .
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, 2002, 64 (8-11) :1003-1010
[46]   Response of the resolved planetary wave activity and amplitude to turned off gravity waves in the UA-ICON general circulation model [J].
Karami K. ;
Mehrdad S. ;
Jacobi C. .
J. Atmos. Sol.-Terr. Phys.,
[47]   Testing ground-based observations of wave activity in the (lower and upper) atmosphere as possible (complementary) indicators of streamer events [J].
Kozubek, Michal ;
Kuchelbacher, Lisa ;
Chum, Jaroslav ;
Sindelarova, Tereza ;
Trinkl, Franziska ;
Podolska, Katerina .
ATMOSPHERIC MEASUREMENT TECHNIQUES, 2025, 18 (06) :1373-1388
[48]   Planetary wave activity in the Equatorial Mesosphere and Lower Thermosphere (MLT) during Anomalous QBO disruption in 2015-16 [J].
Bhagavathiammal, G. J. ;
Tsuda, Toshitaka .
REMOTE SENSING OF CLOUDS AND THE ATMOSPHERE XXV, 2020, 11531
[49]   A gravity wave analysis near to the Andes Range from GPS radio occultation data and mesoscale numerical simulations: Two case studies [J].
Llamedo, P. ;
de la Torre, A. ;
Alexander, P. ;
Luna, D. ;
Schmidt, T. ;
Wickert, J. .
ADVANCES IN SPACE RESEARCH, 2009, 44 (04) :494-500
[50]   Tropical temperature variability and Kelvin-wave activity in the UTLS from GPS RO measurements [J].
Scherllin-Pirscher, Barbara ;
Randel, William J. ;
Kim, Joowan .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2017, 17 (02) :793-806