Annales Geophysicae
Annales Geophysicae
ANGEO

Regular paper

21 Jul 2025
Variability and trend analysis of temperature in the upper troposphere and stratosphere region over the tropics (Réunion), by combining balloon-sonde and satellite measurements
Gregori de Arruda Moreira, Hassan Bencherif, Tristan Millet, and Damaris Kirsch Pinheiro
EGUsphere, https://doi.org/10.5194/egusphere-2025-3398,https://doi.org/10.5194/egusphere-2025-3398, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
16 Jul 2025
TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds
Arthur Gauthier, Claudia Borries, Alexander Kozlovsky, Diego Janches, Peter Brown, Denis Vida, Christoph Jacobi, Damian Murphy, Masaki Tsutsumi, Njål Gulbrandsen, Satonori Nozawa, Mark Lester, Johan Kero, Nicholas Mitchell, Tracy Moffat-Griffin, and Gunter Stober
Ann. Geophys., 43, 427–440, https://doi.org/10.5194/angeo-43-427-2025,https://doi.org/10.5194/angeo-43-427-2025, 2025
Short summary
14 Jul 2025
Collisional Transport Coefficients In Kappa-Distributed Plasmas
Mahmood Jwailes, Imad Barghouthi, and Qusay Atawnah
EGUsphere, https://doi.org/10.5194/egusphere-2025-2874,https://doi.org/10.5194/egusphere-2025-2874, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
14 Jul 2025
A Source or a Sink? How Trends in Particle Precipitation Dictate Electrodynamics in High-Latitude Ionosphere
Magnus F. Ivarsen
EGUsphere, https://doi.org/10.5194/egusphere-2025-3068,https://doi.org/10.5194/egusphere-2025-3068, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
11 Jul 2025
Diurnal, seasonal, and annual variations of the fair-weather atmospheric potential gradient and effects of reduced number concentration of condensation nuclei on potential gradient and air conductivity from long-term atmospheric electricity measurements at Świder, Poland
Izabela Pawlak, Anna Odzimek, Daniel Kȩpski, and José Tacza
Ann. Geophys., 43, 391–416, https://doi.org/10.5194/angeo-43-391-2025,https://doi.org/10.5194/angeo-43-391-2025, 2025
Short summary
11 Jul 2025
Plasma Density Estimation from Ionograms and Geophysical Parameters with Deep Learning
Kian Sartipzadeh, Andreas Kvammen, Björn Gustavsson, Njål Gulbrandsen, Magnar Gullikstad Johnsen, Devin Huyghebaert, and Juha Vierinen
EGUsphere, https://doi.org/10.5194/egusphere-2025-3070,https://doi.org/10.5194/egusphere-2025-3070, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
10 Jul 2025
Distinct ionospheric long-term trends in Antarctica due to the Weddell Sea Anomaly
Marayén Canales, Trinidad Duran, Manuel Bravo, Andriy Zalizovski, and Alberto Foppiano
Ann. Geophys., 43, 383–390, https://doi.org/10.5194/angeo-43-383-2025,https://doi.org/10.5194/angeo-43-383-2025, 2025
Short summary
08 Jul 2025
Observations of Electric Fields during two Partial Solar Eclipses at the Geomagnetic Equator
Manuel A. Bravo, Joel H. Fernández, Adán Godoy, Jackson E. Pérez, Benjamín A. Urra, Antonela Ore, Enrique A. Carrasco, Juan J. Soria, Enrique D. Rojo, Carlos E. Saavedra, Elías M. Ovalle, Sulamita M. Ramos, Helen C. Meza, Giancarlo E. Mayhuire, Pedro Quispe, Eduardo Vigo, and Orlando Poma
EGUsphere, https://doi.org/10.5194/egusphere-2025-3155,https://doi.org/10.5194/egusphere-2025-3155, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
07 Jul 2025
Ionospheric signatures of Bursty Bulk Flows in the 6D Vlasiator simulations
Abiyot Bires Workayehu, Minna Palmroth, Maxime Grandin, Liisa Juusola, Markku Alho, Ivan Zaitsev, Venla Koikkalainen, Konstantinos Horaites, Yann Pfau-Kempf, Urs Ganse, Markus Battarbee, and Jonas Suni
EGUsphere, https://doi.org/10.5194/egusphere-2025-2282,https://doi.org/10.5194/egusphere-2025-2282, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
07 Jul 2025
Spatiotemporal Recurrence Pattern of Earth’s Polar Cap Variation During Geomagnetic Storms
Irewola Aaron Oludehinwa, Olasunkanmi Isaac Olusola, Andrei Velichko, and Rose Anoke-Uzosike
EGUsphere, https://doi.org/10.5194/egusphere-2025-2810,https://doi.org/10.5194/egusphere-2025-2810, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
07 Jul 2025
A comparison of methods to compute the rate of horizontal geomagnetic field variation
Samuel Andrew Fielding, Phillip W. Livermore, Ciarán D. Beggan, Kathryn A. Whaler, and Gemma S. Richardson
EGUsphere, https://doi.org/10.5194/egusphere-2025-2857,https://doi.org/10.5194/egusphere-2025-2857, 2025
Preprint under review for ANGEO (discussion: open, 2 comments)
Short summary
04 Jul 2025
Responses of the 14 October 2023 annular solar eclipse observed in satellite temperature profiles
Ana Roberta Paulino, Igo Paulino, and José Augusto Pereira
EGUsphere, https://doi.org/10.5194/egusphere-2025-3085,https://doi.org/10.5194/egusphere-2025-3085, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
03 Jul 2025
| Highlight paper
First observations of continuum emission in dayside aurora
Noora Partamies, Rowan Dayton-Oxland, Katie Herlingshaw, Ilkka Virtanen, Bea Gallardo-Lacourt, Mikko Syrjäsuo, Fred Sigernes, Takanori Nishiyama, Toshi Nishimura, Mathieu Barthelemy, Anasuya Aruliah, Daniel Whiter, Lena Mielke, Maxime Grandin, Eero Karvinen, Marjan Spijkers, and Vincent E. Ledvina
Ann. Geophys., 43, 349–367, https://doi.org/10.5194/angeo-43-349-2025,https://doi.org/10.5194/angeo-43-349-2025, 2025
Short summary Editor-in-chief
03 Jul 2025
Modeling magnetopause location for 4D drift-resolved radiation belt codes: Salammbô model implementation
Rabia Kiraz, Nour Dahmen, Vincent Maget, and Benoit Lavraud
Ann. Geophys., 43, 369–382, https://doi.org/10.5194/angeo-43-369-2025,https://doi.org/10.5194/angeo-43-369-2025, 2025
Short summary
01 Jul 2025
Globally- and Hemispherically-Integrated Joule heating rates during the 17 March 2015 geomagnetic storm, according to Physics-based and Empirical Models
Stelios Tourgaidis, Dimitrios Baloukidis, Panagiotis Pirnaris, Theodoros Sarris, Aaron Ridley, and Gang Lu
EGUsphere, https://doi.org/10.5194/egusphere-2025-2679,https://doi.org/10.5194/egusphere-2025-2679, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
27 Jun 2025
Indications for particle precipitation impact on the ion-neutral collision frequency analyzed with EISCAT measurements
Florian Günzkofer, Gunter Stober, Johan Kero, David R. Themens, Anders Tjulin, Njål Gulbrandsen, Masaki Tsutsumi, and Claudia Borries
Ann. Geophys., 43, 331–348, https://doi.org/10.5194/angeo-43-331-2025,https://doi.org/10.5194/angeo-43-331-2025, 2025
Short summary
17 Jun 2025
Deterministic chaos in modulated multi-cell drifts of localized lower-hybrid oscillations excited by high-frequency waves in the ionosphere
Thomas B. Leyser
Ann. Geophys., 43, 319–329, https://doi.org/10.5194/angeo-43-319-2025,https://doi.org/10.5194/angeo-43-319-2025, 2025
Short summary
13 Jun 2025
Global Inductive Magnetosphere-Ionosphere-Thermosphere Coupling
Karl M. Laundal, Andreas S. Skeidsvoll, Beatrice Popescu Braileanu, Spencer M. Hatch, Nils Olsen, and Heikki Vanhamäki
EGUsphere, https://doi.org/10.5194/egusphere-2025-2051,https://doi.org/10.5194/egusphere-2025-2051, 2025
Preprint under review for ANGEO (discussion: open, 2 comments)
Short summary
11 Jun 2025
| Highlight paper
Leaping and vortex motion of the shock aurora toward the late evening sector observed on 26 February 2023
Sota Nanjo, Masatoshi Yamauchi, Magnar Gullikstad Johnsen, Yoshihiro Yokoyama, Urban Brändström, Yasunobu Ogawa, Anna Naemi Willer, and Keisuke Hosokawa
Ann. Geophys., 43, 303–317, https://doi.org/10.5194/angeo-43-303-2025,https://doi.org/10.5194/angeo-43-303-2025, 2025
Short summary Editor-in-chief
10 Jun 2025
Mapping transition region flows to the ionosphere in a global hybrid-Vlasov simulation
Venla Koikkalainen, Maxime Grandin, Emilia Kilpua, Abiyot Workayehu, Ivan Zaitsev, Liisa Juusola, Shi Tao, Markku Alho, Lauri Pänkäläinen, Giulia Cozzani, Konstantinos Horaites, Jonas Suni, Yann Pfau-Kempf, Urs Ganse, and Minna Palmroth
EGUsphere, https://doi.org/10.5194/egusphere-2025-2265,https://doi.org/10.5194/egusphere-2025-2265, 2025
Preprint under review for ANGEO (discussion: open, 1 comment)
Short summary
03 Jun 2025
An empirical model of high-latitude ionospheric conductances based on EISCAT observations
Liisa Juusola, Ilkka Virtanen, Spencer Mark Hatch, Heikki Vanhamäki, Maxime Grandin, Noora Partamies, Urs Ganse, Ilja Honkonen, Abiyot Workayehu, Antti Kero, and Minna Palmroth
EGUsphere, https://doi.org/10.5194/egusphere-2025-2394,https://doi.org/10.5194/egusphere-2025-2394, 2025
Preprint under review for ANGEO (discussion: final response, 2 comments)
Short summary
28 May 2025
Effect of Ionospheric Variability on the Electron Energy Spectrum estimated from Incoherent Scatter Radar Measurements
Oliver Stalder, Björn Gustavsson, and Ilkka Virtanen
EGUsphere, https://doi.org/10.5194/egusphere-2025-2340,https://doi.org/10.5194/egusphere-2025-2340, 2025
Preprint under review for ANGEO (discussion: open, 1 comment)
Short summary
27 May 2025
Estimation of the 3-D geoelectric field at the Earth's surface using spherical elementary current systems
Liisa Juusola, Heikki Vanhamäki, Elena Marshalko, Mikhail Kruglyakov, and Ari Viljanen
Ann. Geophys., 43, 271–301, https://doi.org/10.5194/angeo-43-271-2025,https://doi.org/10.5194/angeo-43-271-2025, 2025
Short summary
26 May 2025
The cause of the 100,000-year geomagnetic and climate cycles
Koen Vogel
External preprint server, https://doi.org/10.22541/essoar.174344800.02936683/v2,https://doi.org/10.22541/essoar.174344800.02936683/v2, 2025
Preprint under review for ANGEO (discussion: open, 7 comments)
Short summary
21 May 2025
Observing mesoscale dynamics with multistatic specular meteor radars: first climatology of momentum flux, horizontal divergence and relative vorticity over central Europe
J. Federico Conte, Jorge L. Chau, Toralf Renkwitz, Ralph Latteck, Masaki Tsutsumi, Christoph Jacobi, Njål Gulbrandsen, and Satonori Nozawa
EGUsphere, https://doi.org/10.5194/egusphere-2025-1996,https://doi.org/10.5194/egusphere-2025-1996, 2025
Preprint under review for ANGEO (discussion: final response, 6 comments)
Short summary
20 May 2025
A critical review and presentation of the complete, historic series of K indices as determined at Norwegian magnetic observatories since 1939
Ingeborg Frøystein and Magnar Gullikstad Johnsen
Ann. Geophys., 43, 241–269, https://doi.org/10.5194/angeo-43-241-2025,https://doi.org/10.5194/angeo-43-241-2025, 2025
Short summary
20 May 2025
Time-dependent modeling of Alfvénic precipitation observed in the ionosphere
Etienne Gavazzi, Andres Spicher, Björn Gustavsson, James Clemmons, Robert Pfaff, and Douglas Rowland
EGUsphere, https://doi.org/10.5194/egusphere-2025-2098,https://doi.org/10.5194/egusphere-2025-2098, 2025
Preprint under review for ANGEO (discussion: open, 0 comments)
Short summary
19 May 2025
Properties of large-amplitude kilometer-scale field-aligned currents at auroral latitudes, as derived from Swarm satellites
Yun-Liang Zhou and Hermann Lühr
EGUsphere, https://doi.org/10.5194/egusphere-2025-1961,https://doi.org/10.5194/egusphere-2025-1961, 2025
Revised manuscript under review for ANGEO (discussion: final response, 4 comments)
Short summary
28 Apr 2025
Magnetospheric convection in a hybrid-Vlasov simulation
Shi Tao, Markku Alho, Ivan Zaitsev, Lucile Turc, Markus Battarbee, Urs Ganse, Yann Pfau-Kempf, and Minna Palmroth
EGUsphere, https://doi.org/10.5194/egusphere-2025-1340,https://doi.org/10.5194/egusphere-2025-1340, 2025
Revised manuscript under review for ANGEO (discussion: final response, 4 comments)
Short summary
25 Apr 2025
Toolkit for incoherent scatter radar experiment design and applications to EISCAT_3D
Spencer Mark Hatch, Ilkka Virtanen, Karl Magnus Laundal, Habtamu Wubie Tesfaw, Juha Vierinen, Devin Ray Huyghebaert, Andres Spicher, and Jens Christian Hessen
EGUsphere, https://doi.org/10.5194/egusphere-2025-1768,https://doi.org/10.5194/egusphere-2025-1768, 2025
Preprint under review for ANGEO (discussion: final response, 2 comments)
Short summary
17 Apr 2025
Atmospheric odd nitrogen response to electron forcing from a 6D magnetospheric hybrid-kinetic simulation
Tuomas Häkkilä, Maxime Grandin, Markus Battarbee, Monika E. Szeląg, Markku Alho, Leo Kotipalo, Niilo Kalakoski, Pekka T. Verronen, and Minna Palmroth
Ann. Geophys., 43, 217–240, https://doi.org/10.5194/angeo-43-217-2025,https://doi.org/10.5194/angeo-43-217-2025, 2025
Short summary
17 Apr 2025
Electron-Driven Variability of the Upper Atmospheric Nitric Oxide Column Density Over the Syowa Station in Antarctica
Pekka T. Verronen, Akira Mizuno, Yoshizumi Miyoshi, Sandeep Kumar, Taku Nakajima, Shin-Ichiro Oyama, Tomoo Nagahama, Satonori Nozawa, Monika E. Szelag, Tuomas Häkkilä, Niilo Kalakoski, Antti Kero, Esa Turunen, Satoshi Kasahara, Shoichiro Yokota, Kunihiro Keika, Tomoaki Hori, Takefumi Mitani, Takeshi Takashima, and Iku Shinohara
EGUsphere, https://doi.org/10.5194/egusphere-2025-1691,https://doi.org/10.5194/egusphere-2025-1691, 2025
Revised manuscript accepted for ANGEO (discussion: final response, 6 comments)
Short summary
16 Apr 2025
Radiative impact of increased middle atmospheric water vapour in the aftermath of the Hunga 2022 volcanic eruption at two locations in the Northern Hemisphere
Alistair Bell, Axel Murk, and Gunter Stober
EGUsphere, https://doi.org/10.5194/egusphere-2025-1396,https://doi.org/10.5194/egusphere-2025-1396, 2025
Preprint under review for ANGEO (discussion: final response, 2 comments)
Short summary
31 Mar 2025
Effects of supernova-induced soft X-rays on middle- and upper-atmospheric nitric oxide and stratospheric ozone
David E. Siskind, McArthur Jones Jr., and Jeffrey W. Reep
Ann. Geophys., 43, 201–216, https://doi.org/10.5194/angeo-43-201-2025,https://doi.org/10.5194/angeo-43-201-2025, 2025
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31 Mar 2025
Pre-earthquake Electric Field Disturbances and Interference Analysis Based on CSES-01 Satellite Observations
Jianping Huang, Junjie Song, Zhong Li, Wenjing Li, Hengxin Lu, Xingsu Li, Yumeng Huo, and Ruiqi Yang
EGUsphere, https://doi.org/10.5194/egusphere-2025-1013,https://doi.org/10.5194/egusphere-2025-1013, 2025
Preprint under review for ANGEO (discussion: open, 1 comment)
Short summary
28 Mar 2025
Effects of geomagnetic mirror force and pitch angles of precipitating electrons on ionization of the polar upper atmosphere
Tomotaka Tanaka, Yasunobu Ogawa, Yuto Katoh, Mizuki Fukizawa, Anton Artemyev, Vassilis Angelopoulos, Xiao-Jia Zhang, Yoshimasa Tanaka, and Akira Kadokura
EGUsphere, https://doi.org/10.5194/egusphere-2025-768,https://doi.org/10.5194/egusphere-2025-768, 2025
Preprint under review for ANGEO (discussion: final response, 4 comments)
Short summary
28 Mar 2025
Subauroral Crosstalk in POES/Metop TED Channels
Jan Maik Wissing, Olesya Yakovchuk, Stefan Bender, and Christina Arras
EGUsphere, https://doi.org/10.5194/egusphere-2025-1256,https://doi.org/10.5194/egusphere-2025-1256, 2025
Preprint under review for ANGEO (discussion: final response, 2 comments)
Short summary
26 Mar 2025
Satellite impact of Carrington-level geomagnetic storm particle fluxes and fluences
Anton Fetzer, Mikko Savola, Adnane Osmane, Vili-Arttu Ketola, Philipp Oleynik, and Minna Palmroth
EGUsphere, https://doi.org/10.5194/egusphere-2025-1279,https://doi.org/10.5194/egusphere-2025-1279, 2025
Preprint under review for ANGEO (discussion: final response, 3 comments)
Short summary
21 Mar 2025
Data reduction of incoherent scatter plasma line parameters
Mini Gupta and Patrick Guio
EGUsphere, https://doi.org/10.5194/egusphere-2025-993,https://doi.org/10.5194/egusphere-2025-993, 2025
Preprint under review for ANGEO (discussion: open, 1 comment)
Short summary
18 Mar 2025
Determination of vertical profiles of shell currents in the ionosphere
Evgeny Romashets and Marek Vandas
Ann. Geophys., 43, 193–200, https://doi.org/10.5194/angeo-43-193-2025,https://doi.org/10.5194/angeo-43-193-2025, 2025
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06 Mar 2025
Comparison of meteor radar and satellite winds in the Brazilian equatorial region
Ana Roberta Paulino, Delis Otildes Rodrigues, Igo Paulino, Lourivaldo Mota Lima, Ricardo Arlen Buriti, Paulo Prado Batista, Aaron Ridley, and Chen Wu
Ann. Geophys., 43, 183–191, https://doi.org/10.5194/angeo-43-183-2025,https://doi.org/10.5194/angeo-43-183-2025, 2025
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25 Feb 2025
| Highlight paper
Evaluating F10.7 and F30 radio fluxes as long-term solar proxies of energy deposition in the thermosphere
Liying Qian and Kalevi Mursula
Ann. Geophys., 43, 175–182, https://doi.org/10.5194/angeo-43-175-2025,https://doi.org/10.5194/angeo-43-175-2025, 2025
Short summary Editor-in-chief
25 Feb 2025
Solar wind driving of auroral outflow during a CME storm
Kai Zhao, Lynn M. Kistler, Eric J. Lund, Niloufar Nowrouzi, Christopher G. Mouikis, and Naritoshi Kitamura
EGUsphere, https://doi.org/10.5194/egusphere-2025-728,https://doi.org/10.5194/egusphere-2025-728, 2025
Preprint under review for ANGEO (discussion: final response, 4 comments)
Short summary
21 Feb 2025
Investigation of the occurrence of significant deviations in the magnetopause location: solar-wind and foreshock effects
Niklas Grimmich, Adrian Pöppelwerth, Martin Owain Archer, David Gary Sibeck, Ferdinand Plaschke, Wenli Mo, Vicki Toy-Edens, Drew Lawson Turner, Hyangpyo Kim, and Rumi Nakamura
Ann. Geophys., 43, 151–173, https://doi.org/10.5194/angeo-43-151-2025,https://doi.org/10.5194/angeo-43-151-2025, 2025
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21 Feb 2025
Are drivers of northern lights in the ionosphere?
Osuke Saka
EGUsphere, https://doi.org/10.5194/egusphere-2025-716,https://doi.org/10.5194/egusphere-2025-716, 2025
Revised manuscript under review for ANGEO (discussion: final response, 4 comments)
Short summary
12 Feb 2025
Statistical analysis of magnetopause response during substorm phases
Sanjay Kumar and Tuija I. Pulkkinen
Ann. Geophys., 43, 137–149, https://doi.org/10.5194/angeo-43-137-2025,https://doi.org/10.5194/angeo-43-137-2025, 2025
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30 Jan 2025
Quadratic magnetic gradients from seven- and nine-spacecraft constellations
Chao Shen, Gang Zeng, Rungployphan Kieokaew, and Yufei Zhou
Ann. Geophys., 43, 115–135, https://doi.org/10.5194/angeo-43-115-2025,https://doi.org/10.5194/angeo-43-115-2025, 2025
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30 Jan 2025
Ionospheric Plasma Irregularities During Intense geomagnetic storms of Solar Cycle 25
Nadia Imtiaz, Andres Calabia, Chukwuma Anoruo, Aqsa Zahid, Christine Amory, and Binod Adhikari
EGUsphere, https://doi.org/10.5194/egusphere-2025-86,https://doi.org/10.5194/egusphere-2025-86, 2025
Preprint under review for ANGEO (discussion: open, 2 comments)
Short summary
28 Jan 2025
A Nonlinear Generalized Boussinesq Equation ((2+1)-D) for Rossby-Khantadze Waves
Laila Zafar Kahlon, Tamaz David Kaladze, Hassan Amir Shah, Taimoor Zaka, and Syed Assad Ul Azeem Bukhari
EGUsphere, https://doi.org/10.5194/egusphere-2025-123,https://doi.org/10.5194/egusphere-2025-123, 2025
Revised manuscript under review for ANGEO (discussion: final response, 4 comments)
Short summary
24 Jan 2025
Simulation of interferometric imaging with EISCAT_3D for fine-scale in-beam incoherent scatter spectra measurements
Devin Huyghebaert, Björn Gustavsson, Juha Vierinen, Andreas Kvammen, Matthew Zettergren, John Swoboda, Ilkka Virtanen, Spencer M. Hatch, and Karl M. Laundal
Ann. Geophys., 43, 99–113, https://doi.org/10.5194/angeo-43-99-2025,https://doi.org/10.5194/angeo-43-99-2025, 2025
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