Recent

The following lists the recent preprints posted on EGUsphere with ANGEO-related topics as well as final revised papers published recently in ANGEO.

03 Mar 2026

ESA/JUICE encounters Earth/Moon in 2024: overview of the Moons And Jupiter Imaging Spectrometer (MAJIS) observations

François Poulet, Giuseppe Piccioni, Yves Langevin, Cydalise Dumesnil, Vincent Carlier, Benoit Seignovert, Marc Dexet, Leigh N. Fletcher, Cédric Leyrat, Francesca Altieri, John Carter, Emiliano D'Aversa, Maria De Sanctis, Davide Grassi, Sandrine Guerlet, Stéphane Le Mouélic, Alessandra Migliorini, Fabrizio Oliva, Clément Royer, Sébastien Rodriguez, Katrin Stephan, Federico Tosi, Francesca Zambon, Alberto Adriani, Gabriele Arnold, Jean-Pierre Bibring, Dominique Bockelée, Rosario Brunetto, Fabrizio Capaccioni, Cristian Carli, Thibault Cavalié, Miriam Cisneros González, Mauro Ciarnello, Simone De Angelis, Pierre Drossart, Gianrico Filacchione, Thierry Fouchet, Jean-Claude Gérard, Denis Grodent, Patrick Irwin, Sophie Jacquinod, Ozgur Karatekin, Emmanuel Lellouch, Nicolas Ligier, Nicolas Mangold, Magali Mebsout, Frédéric Merlin, Alessandro Morbidelli, Alessandro Mura, Andreas Nathues, Maria E. Palumbo, Cédric Pilorget, Olivier Poch, Eric Quirico, Andrea Raponi, Séverine Robert, Elias Roussos, Agustin Sanchez-Lavega, Bernard Schmitt, Giuseppe Sindoni, Marcel Snels, Roberto Sordini, Stefania Stefani, Giovanni Strazzulla, Tim Trent, Gabriel Tobie, Diego Turrini, Ann-Carine Vandaele, Mathieu Vincendon, Olivier Witasse, Claire Vallat, and Alessandro Moraino

Ann. Geophys., 44, 163–193, https://doi.org/10.5194/angeo-44-163-2026,https://doi.org/10.5194/angeo-44-163-2026, 2026

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26 Feb 2026

| Highlight paper

A source or a sink? How the altitude of particle precipitation influence high-latitude electrodynamics

Magnus F. Ivarsen

Ann. Geophys., 44, 149–162, https://doi.org/10.5194/angeo-44-149-2026,https://doi.org/10.5194/angeo-44-149-2026, 2026

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25 Feb 2026

Earth's magnetosheath: a comparison of plasma flow direction between models and observations

Marek Vandas and Evgeny Romashets

Ann. Geophys., 44, 137–148, https://doi.org/10.5194/angeo-44-137-2026,https://doi.org/10.5194/angeo-44-137-2026, 2026

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25 Feb 2026

Reevaluation of EISCAT plasma parameters during the May 2024 geomagnetic storm using O⁺ ratios from AMIE-driven SD-WACCM-X

Florian Günzkofer, Anders Tjulin, Gang Lu, Hanli Liu, and Gunter Stober

EGUsphere, https://doi.org/10.5194/egusphere-2026-823,https://doi.org/10.5194/egusphere-2026-823, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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19 Feb 2026

Spectral analyzes of lunar regions observed by MAJIS during the JUICE Earth-Moon flyby

Francesca Zambon, Francesca Altieri, Maria Cristina De Sanctis, Stéphane Le Mouélic, Giuseppe Piccioni, François Poulet, Yves Langevin, Clément Royer, Federico Tosi, Ozgur Karatekin, Alessandro Mura, and Cristian Carli

EGUsphere, https://doi.org/10.5194/egusphere-2026-876,https://doi.org/10.5194/egusphere-2026-876, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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19 Feb 2026

Post launch spectral and radiometric performances of MAJIS, the VIS-NIR imaging spectrometer of JUICE

Yves Langevin, Sébastien Rodriguez, Sandrine Guerlet, François Poulet, Giuseppe Piccioni, Livio Agostini, Raymond Armante, Emiliano D’Aversa, Gianrico Filacchione, Leigh Fletcher, Fabrizio Oliva, Clément Royer, Benoit Seignovert, Katrin Stephan, Federico Tosi, and Tim Trent

EGUsphere, https://doi.org/10.5194/egusphere-2026-410,https://doi.org/10.5194/egusphere-2026-410, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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17 Feb 2026

Effect of Ionospheric Variability on the Electron Energy Spectrum estimated from Incoherent Scatter Radar Measurements

Oliver Stalder, Björn Gustavsson, and Ilkka Virtanen

Ann. Geophys., 44, 123–135, https://doi.org/10.5194/angeo-44-123-2026,https://doi.org/10.5194/angeo-44-123-2026, 2026

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17 Feb 2026

JUICE-JANUS observations of Earth in preparation for the JANUS investigation of Jupiter’s atmosphere

Ricardo Hueso, Arrate Antuñano, Luisa María Lara, Katrin Stephan, Angelo Zinzi, Athena Coustenis, Yoav Yair, Mitsuteru Sato, Junichi Haruyama, Amy Simon, Cecilia Tubiana, Luca Penasa, Livio Agostini, Alice Luchetti, Alessio Aboudan, Michael Aye, Elke Kersten, Klaus-Dieter Matz, Romolo Politti, Frank Trauthan, Ry Evill, Ines Belgacem, Takahashi Yukihiro, Jose María Castro-Marín, Vincenzo Della Corte, Stubbe Hviid, Thomas Roatsch, Nicole Schmitz, Manish Patel, Ganna Portyankina, and Pasquale Palumbo

EGUsphere, https://doi.org/10.5194/egusphere-2026-710,https://doi.org/10.5194/egusphere-2026-710, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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17 Feb 2026

MAJIS performances in the infrared during the JUICE 2024 Earth fly-by: comparisons with IASI measurements and sensitivity to trace species

Sandrine Guerlet, Raymond Armante, Ninon Lauzanne, François Poulet, Yves Langevin, Sébastien Rodriguez, Leigh Fletcher, Thierry Fouchet, Giuseppe Piccioni, and Alessandra Migliorini

EGUsphere, https://doi.org/10.5194/egusphere-2026-805,https://doi.org/10.5194/egusphere-2026-805, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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16 Feb 2026

Case Studies on Mesospheric Fronts at Low Latitudes over Brazil

Efua A. Ogobor, Igo Paulino, Vania F. Andrioli, Cristiano M. Wrasse, Hisao Takahashi, Amauri F. Medeiros, Paulo P. Batista, and Prosper K. Nyassor

EGUsphere, https://doi.org/10.5194/egusphere-2025-6569,https://doi.org/10.5194/egusphere-2025-6569, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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13 Feb 2026

Analysis of 3GM High Accuracy Accelerometer data collected during JUICE Lunar Earth Gravity Assist

Umberto De Filippis, Paolo Cappuccio, Mauro Di Benedetto, Ivan di Stefano, Daniele Durante, and Luciano Iess

EGUsphere, https://doi.org/10.5194/egusphere-2026-673,https://doi.org/10.5194/egusphere-2026-673, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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10 Feb 2026

Data reduction of incoherent scatter plasma line parameters

Mini Gupta and Patrick Guio

Ann. Geophys., 44, 109–122, https://doi.org/10.5194/angeo-44-109-2026,https://doi.org/10.5194/angeo-44-109-2026, 2026

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06 Feb 2026

Atmospheric gravity waves observed in Brazil on 14 October 2023

Anderson Vestena Bilibio, Igo Paulino, Cristiano Max Wrasse, Prosper Kwamla Nyassor, Ricardo Arlen Buriti, Cosme Alexandre de Oliveira Barros Figueiredo, Fábio Egito, Hisao Takahashi, Toyese Tunde Ayorinde, Lucas Vaz Peres, and Rodrigo da Silva

EGUsphere, https://doi.org/10.5194/egusphere-2025-6571,https://doi.org/10.5194/egusphere-2025-6571, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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04 Feb 2026

In-flight receiver calibration of the Ganymede Laser Altimeter (GALA) by passive Earth observations

Gaku Nishiyama, Alexander Stark, Klaus-Dieter Matz, Christian Hüttig, Kai Wickhusen, Livio Agostini, Christian Althaus, Jan Binger, Keigo Enya, Janot George, Kay Lingenauber, Jun Kimura, Masanori Kobayashi, Giulio Macrì, Wladimir Neumann, Luca Penasa, Ganna Portyankina, Cecilia Tubiana, Konrad Wilner, Pasquale Palumbo, and Hauke Hussmann

EGUsphere, https://doi.org/10.5194/egusphere-2026-520,https://doi.org/10.5194/egusphere-2026-520, 2026

Preprint under review for ANGEO (discussion: open, 1 comment)

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04 Feb 2026

Juice-SWI during the Lunar-Earth-Gravity-Assist (LEGA). II. Instrument operations

Thibault Cavalié, Raphael Moreno, Ladislav Rezac, Fabrice Herpin, Christopher Jarchow, Paul Hartogh, Alberto Carrasco Gallardo, Samuel Goodyear, Pierre Mancini, Ali Schulz-Ravanbakhsh, Borys Dabrowski, Yasuko Kasai, Emmanuel Lellouch, Axel Murk, Donal Murtagh, Michael Olberg, Miriam Rengel, Hideo Sagawa, Slawomira Szutowicz, and Eva Wirström

EGUsphere, https://doi.org/10.5194/egusphere-2026-584,https://doi.org/10.5194/egusphere-2026-584, 2026

Preprint under review for ANGEO (discussion: open, 1 comment)

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03 Feb 2026

Plasma density estimation from ionograms and geophysical parameters with deep learning

Kian Sartipzadeh, Andreas Kvammen, Björn Gustavsson, Njål Gulbrandsen, Magnar G. Johnsen, Devin Huyghebaert, and Juha Vierinen

Ann. Geophys., 44, 85–107, https://doi.org/10.5194/angeo-44-85-2026,https://doi.org/10.5194/angeo-44-85-2026, 2026

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03 Feb 2026

Observations of fragmented aurora-like emissions and picket fence on the poleward edge of the auroral oval

Sota Nanjo, Katie Herlingshaw, Tima Sergienko, Gaël Cessateur, Noora Partamies, Magnar G. Johnsen, Keisuke Hosokawa, Hervé Lamy, Yasunobu Ogawa, Antti Kero, Shin-ichiro Oyama, and Masatoshi Yamauchi

Ann. Geophys., 44, 63–84, https://doi.org/10.5194/angeo-44-63-2026,https://doi.org/10.5194/angeo-44-63-2026, 2026

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02 Feb 2026

Empirical evidence of spurious correlations among space weather variables

Costecia Ifeoma Onah, Ogbonnaya Okike, Romanus Ejike Ugwoke, Evaristus Uzochukwu Iyida, and Jibrin Adejoh Alhassan

EGUsphere, https://doi.org/10.5194/egusphere-2025-6494,https://doi.org/10.5194/egusphere-2025-6494, 2026

Preprint under review for ANGEO (discussion: open, 2 comments)

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30 Jan 2026

Solar wind driving of the auroral outflow during the 23–26 September 1998 storm

Kai Zhao, Lynn M. Kistler, Eric J. Lund, Niloufar Nowrouzi, Christopher G. Mouikis, and Naritoshi Kitamura

Ann. Geophys., 44, 47–61, https://doi.org/10.5194/angeo-44-47-2026,https://doi.org/10.5194/angeo-44-47-2026, 2026

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30 Jan 2026

"Corotating Interaction Region (CIR)", "Interaction Region", "Stream Interaction Region (SIR)", which term should be used?

Bruce T. Tsurutani, Rajkumar Hajra, and Gurbax S. Lakhina

EGUsphere, https://doi.org/10.5194/egusphere-2026-5,https://doi.org/10.5194/egusphere-2026-5, 2026

Preprint under review for ANGEO (discussion: open, 4 comments)

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30 Jan 2026

Flapping motion of onset aurora

Osuke Saka

EGUsphere, https://doi.org/10.5194/egusphere-2026-11,https://doi.org/10.5194/egusphere-2026-11, 2026

Preprint under review for ANGEO (discussion: open, 0 comments)

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29 Jan 2026

Mean Energy variation of Diffuse Aurora Observed with the ASIS Spectrograph

Gaël Cessateur, Keisuke Hosokawa, Hervé Lamy, Sota Nanjo, Mathieu Barthelemy, Magnar G. Johnsen, and Romain Maggiolo

EGUsphere, https://doi.org/10.5194/egusphere-2026-385,https://doi.org/10.5194/egusphere-2026-385, 2026

Preprint under review for ANGEO (discussion: open, 1 comment)

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21 Jan 2026

JUICE-MAJIS Earth observations during the 2024 gravity assist: first analysis and comparison with PRISMA data

Fabrizio Oliva, Emiliano D'Aversa, Alessandra Migliorini, Giuseppe Piccioni, François Poulet, Yves Langevin, Gianrico Filacchione, Mauro Ciarniello, Sébastien Rodriguez, Benoît Seignovert, Alessandro Mura, Leigh N. Fletcher, Angelo Zinzi, Marco Giardino, Ettore Lopinto, Giuseppe Sindoni, and Christina Plainaki

EGUsphere, https://doi.org/10.5194/egusphere-2025-6455,https://doi.org/10.5194/egusphere-2025-6455, 2026

Preprint under review for ANGEO (discussion: open, 2 comments)

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14 Jan 2026

Statistical and temporal characteristics of sawtooth events

Connor C. DiMarco, Tuija I. Pulkkinen, and Michael G. Henderson

Ann. Geophys., 44, 35–46, https://doi.org/10.5194/angeo-44-35-2026,https://doi.org/10.5194/angeo-44-35-2026, 2026

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13 Jan 2026

Transport coefficients in standard Kappa distributed plasmas

Mahmood J. Jwailes, Imad A. Barghouthi, and Qusay S. Atawnah

EGUsphere, https://doi.org/10.5194/egusphere-2025-6474,https://doi.org/10.5194/egusphere-2025-6474, 2026

Preprint under review for ANGEO (discussion: open, 1 comment)

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13 Jan 2026

Ionospheric responses to the 14 October 2023 annular solar eclipse over Brazil: A case study of fixed-frequency isoline variations

Igo Paulino, Paulo Roberto Fagundes, Ana Roberta Paulino, Maurício José Alves Bolzam, and Valdir Gil Pillat

EGUsphere, https://doi.org/10.5194/egusphere-2025-6570,https://doi.org/10.5194/egusphere-2025-6570, 2026

Preprint under review for ANGEO (discussion: final response, 3 comments)

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12 Jan 2026

Time-dependent modeling of Alfvénic precipitation observed in the ionosphere

Etienne Gavazzi, Andres Spicher, Björn Gustavsson, James Clemmons, Robert Pfaff, and Douglas Rowland

Ann. Geophys., 44, 1–15, https://doi.org/10.5194/angeo-44-1-2026,https://doi.org/10.5194/angeo-44-1-2026, 2026

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12 Jan 2026

A comparison of modeled daytime E regions from E-PROBED and PyIRI with ionosonde observations

Daniel J. Emmons, Cornelius Csar Jude H. Salinas, Dong L. Wu, Nimalan Swarnalingam, Eugene V. Dao, Jorge L. Chau, Yosuke Yamazaki, Kyle E. Fitch, and Victoriya V. Forsythe

Ann. Geophys., 44, 17–34, https://doi.org/10.5194/angeo-44-17-2026,https://doi.org/10.5194/angeo-44-17-2026, 2026

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12 Jan 2026

Spectroscopic detection of terrestrial lightning from space by JUICE-MAJIS during Earth Gravity Assist

Emiliano D'Aversa, Fabrizio Oliva, Giuseppe Piccioni, François Poulet, Ivana Kolmašová, Alessandra Migliorini, Gianrico Filacchione, Leigh Fletcher, Alessandro Mura, Yves Langevin, Benoît Seignovert, Davide Grassi, Sébastien Rodriguez, Federico Tosi, Nicolas Ligier, Giuseppe Sindoni, Marco Giardino, and Christina Plainaki

EGUsphere, https://doi.org/10.5194/egusphere-2025-6453,https://doi.org/10.5194/egusphere-2025-6453, 2026

Preprint under review for ANGEO (discussion: open, 2 comments)

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12 Jan 2026

A near-sunset atmospheric sounding during the 14 October 2023 annular solar eclipse over Natal

Igo Paulino, Francisco Raimundo da Silva, Ana Roberta Paulino, and Gilvan Borba

EGUsphere, https://doi.org/10.5194/egusphere-2025-6194,https://doi.org/10.5194/egusphere-2025-6194, 2026

Preprint under review for ANGEO (discussion: open, 1 comment)

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12 Jan 2026

How well can we forecast local magnetic ground perturbations with existing space weather monitoring resources?

Stephen Omondi, Spencer Mark Hatch, Andreas Kvammen, Magnar Gullikstad Johnsen, Mathew J. Owens, Kristian Solheim Thinn, and Rodrigo López

EGUsphere, https://doi.org/10.5194/egusphere-2025-6298,https://doi.org/10.5194/egusphere-2025-6298, 2026

Preprint under review for ANGEO (discussion: final response, 2 comments)

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