The 14th International Symposium on Equatorial Aeronomy
The 14th International Symposium on Equatorial Aeronomy
Editor(s): E. Yizengaw, J. Makela, P. J. Erickson, K. Shiokawa, C. Stolle, D. Pallamraju, and C. Jacobi
This special issue is the outcome of the 14th International Symposium on Equatorial Aeronomy (ISEA) on aeronomy from high to low latitudes, primarily focused on its longitude and hemispheric dependence, including the impact of waves propagating from the lower atmosphere. The 14th ISEA conference was held in Africa as a means of focusing attention on an extensive geographic region where observations are critically needed to address some of the fundamental questions of the physical processes driving the ionosphere locally and globally. The fundamental theme of the special issue refers to the physics and mechanisms behind the connection of high- to low-latitude aeronomy and its longitudinal and hemispheric dependencies as well as the impact of the lower atmosphere on the connection between tropospheric weather and ionospheric aeronomy. Papers within the scope of these fundamental scientific objectives are welcome for this special issue. The compilation of papers from the conference special issue is expected to provide a clear description of the fundamental physics mentioned above, which will be of value to the upper atmosphere scientific community in general and to the ongoing global magnetosphere–ionosphere–thermosphere (MIT) modeling effort in particular.

The special issue on the 14th International Symposium on Equatorial Aeronomy includes articles from six science themes that were discussed at the conference in 2015. These include (1) magnetosphere–ionosphere–thermosphere coupling impact at low and mid-latitude, (2) longitudinal dependence of equatorial electrodynamics and storm-enhanced density, (3) ionospheric irregularities and scintillations, (4) new results from recently deployed instrumentation, (5) equatorial aeronomy related to atmosphere–ionosphere coupling, and (6) future opportunities using upcoming new mission and planned ground-based instrumentation.

A number of articles relating to each science theme are expected to be submitted to this special issue; these will describe details of the physics behind each phenomenon that will help to solve the complexity of the MIT system. Since this special issue is an outcome of the research presented at the 14th ISEA conference held in Africa for the first time in four decades, it will further provide great opportunities and motivations to African scientists to communicate their research results with the international community using this special issue as a vehicle. This will spark significant interest in space science education and research throughout Africa and globally.

This special issue will be useful to both active researchers and advanced graduate students in the field of physics, geophysics and engineering, especially those who are keen to acquire a global understanding of ionospheric aeronomy and want to take the global modeling effort one step forward by including observational information from all longitudinal sectors across the globe.

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09 Aug 2017
Similarity and differences in morphology and mechanisms of the foF2 and TEC disturbances during the geomagnetic storms on 26–30 September 2011
Maxim V. Klimenko, Vladimir V. Klimenko, Irina E. Zakharenkova, Konstantin G. Ratovsky, Nina A. Korenkova, Yury V. Yasyukevich, Anna A. Mylnikova, and Iurii V. Cherniak
Ann. Geophys., 35, 923–938,,, 2017
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06 Jun 2017
Studying the variability in the diurnal and seasonal variations in GPS total electron content over Nigeria
Victor Adetayo Eyelade, Adekola Olajide Adewale, Andrew Ovie Akala, Olawale Segun Bolaji, and A. Babatunde Rabiu
Ann. Geophys., 35, 701–710,,, 2017
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03 May 2017
Determinations of ionosphere and plasmasphere electron content for an African chain of GPS stations
Andrew J. Mazzella Jr., John Bosco Habarulema, and Endawoke Yizengaw
Ann. Geophys., 35, 599–612,,, 2017
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07 Apr 2017
Longitudinal variation of equatorial electrojet and the occurrence of its counter electrojet
A. Babatunde Rabiu, Olanike Olufunmilayo Folarin, Teiji Uozumi, Nurul Shazana Abdul Hamid, and Akimasa Yoshikawa
Ann. Geophys., 35, 535–545,,, 2017
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05 Apr 2017
Longitudinal, seasonal and solar cycle variation in lunar tide influence on the equatorial electrojet
Endawoke Yizengaw and Brett A. Carter
Ann. Geophys., 35, 525–533,,, 2017
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16 Mar 2017
Rocket in situ observation of equatorial plasma irregularities in the region between E and F layers over Brazil
Siomel Savio Odriozola, Francisco Carlos de Meneses Jr., Polinaya Muralikrishna, Alexandre Alvares Pimenta, and Esfhan Alam Kherani
Ann. Geophys., 35, 413–422,,, 2017
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14 Mar 2017
High-resolution coherent backscatter interferometric radar images of equatorial spread F using Capon's method
Fabiano S. Rodrigues, Eurico R. de Paula, and Gebreab K. Zewdie
Ann. Geophys., 35, 393–402,,, 2017
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13 Mar 2017
MONITOR Ionospheric Network: two case studies on scintillation and electron content variability
Yannick Béniguel, Iurii Cherniak, Alberto Garcia-Rigo, Pierrick Hamel, Manuel Hernández-Pajares, Roland Kameni, Anton Kashcheyev, Andrzej Krankowski, Michel Monnerat, Bruno Nava, Herbert Ngaya, Raül Orus-Perez, Hughes Secrétan, Damien Sérant, Stefan Schlüter, and Volker Wilken
Ann. Geophys., 35, 377–391,,, 2017
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07 Mar 2017
Ionospheric response to magnetar flare: signature of SGR J1550–5418 on coherent ionospheric Doppler radar
Ayman Mahrous
Ann. Geophys., 35, 345–351,,, 2017
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03 Mar 2017
New results on equatorial thermospheric winds and temperatures from Ethiopia, Africa
Fasil Tesema, Rafael Mesquita, John Meriwether, Baylie Damtie, Melessew Nigussie, Jonathan Makela, Daniel Fisher, Brian Harding, Endawoke Yizengaw, and Samuel Sanders
Ann. Geophys., 35, 333–344,,, 2017
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21 Feb 2017
Large- and small-scale periodicities in the mesosphere as obtained from variations in O2 and OH nightglow emissions
Ravindra P. Singh and Duggirala Pallamraju
Ann. Geophys., 35, 227–237,,, 2017
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03 Feb 2017
| Highlight paper
A high-altitude balloon experiment to probe stratospheric electric fields from low latitudes
Subramanian Gurubaran, Manu Shanmugam, Kaliappan Jawahar, Kaliappan Emperumal, Prasanna Mahavarkar, and Suneel Kumar Buduru
Ann. Geophys., 35, 189–201,,, 2017
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30 Jan 2017
Climatology of thermospheric neutral winds over Oukaïmeden Observatory in Morocco
Mohamed Kaab, Zouhair Benkhaldoun, Daniel J. Fisher, Brian Harding, Aziza Bounhir, Jonathan J. Makela, Amine Laghriyeb, Khalifa Malki, Ahmed Daassou, and Mohamed Lazrek
Ann. Geophys., 35, 161–170,,, 2017
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20 Jan 2017
Observations of equatorial ionization anomaly over Africa and Middle East during a year of deep minimum
Olawale Bolaji, Oluwafisayo Owolabi, Elijah Falayi, Emmanuel Jimoh, Afolabi Kotoye, Olumide Odeyemi, Babatunde Rabiu, Patricia Doherty, Endawoke Yizengaw, Yosuke Yamazaki, Jacob Adeniyi, Rafiat Kaka, and Kehinde Onanuga
Ann. Geophys., 35, 123–132,,, 2017
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13 Jan 2017
Scintillation measurements at Bahir Dar during the high solar activity phase of solar cycle 24
Martin Kriegel, Norbert Jakowski, Jens Berdermann, Hiroatsu Sato, and Mogese Wassaie Mersha
Ann. Geophys., 35, 97–106,,, 2017
04 Jan 2017
Induction effects of geomagnetic disturbances in the geo-electric field variations at low latitudes
Vafi Doumbia, Kouadio Boka, Nguessan Kouassi, Oswald Didier Franck Grodji, Christine Amory-Mazaudier, and Michel Menvielle
Ann. Geophys., 35, 39–51,,, 2017
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03 Jan 2017
Signature of ionospheric irregularities under different geophysical conditions on SBAS performance in the western African low-latitude region
Oladipo Emmanuel Abe, Xurxo Otero Villamide, Claudia Paparini, Rodrigue Herbert Ngaya, Sandro M. Radicella, and Bruno Nava
Ann. Geophys., 35, 1–9,,, 2017
21 Dec 2016
The story of plumes: the development of a new conceptual framework for understanding magnetosphere and ionosphere coupling
Mark B. Moldwin, Shasha Zou, and Tom Heine
Ann. Geophys., 34, 1243–1253,,, 2016
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29 Nov 2016
Spatial and temporal variation of total electron content as revealed by principal component analysis
Elsayed R. Talaat and Xun Zhu
Ann. Geophys., 34, 1109–1117,,, 2016
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16 Nov 2016
Electrodynamic influence on the diurnal behaviour of neutral daytime airglow emissions
Deepak K. Karan, Duggirala Pallamraju, Kedar A. Phadke, Tatiparti Vijayalakshmi, Tarun K. Pant, and Shyamoli Mukherjee
Ann. Geophys., 34, 1019–1030,,, 2016
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03 Nov 2016
Observational evidence for new instabilities in the midlatitude E and F region
David L. Hysell, Miguel Larsen, and Michael Sulzer
Ann. Geophys., 34, 927–941,,, 2016
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