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Record W4412662610 · doi:10.1029/2025sw004470

Topside Ionosphere During the Mother's Day Superstorm as Observed by Multiple LEO Spacecraft, Including SNIPE

2025· article· en· W4412662610 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueSpace Weather · 2025
Typearticle
Languageen
FieldPhysics and Astronomy
TopicIonosphere and magnetosphere dynamics
Canadian institutionsUniversity of Saskatchewan
FundersMinistry of Science and ICT, South KoreaKorea Astronomy and Space Science Institute
KeywordsSpacecraftIonosphereAeronauticsGeographyGeologyAerospace engineeringGeophysicsEngineering

Abstract

fetched live from OpenAlex

Abstract We analyze the topside electron density and temperature during the superstorm in May 2024 (Mother's Day storm or Gannon storm), using multiple Low‐Earth Orbit (LEO) spacecraft operating at different altitudes, such as Swarm, International Space Station, Defense Meteorological Satellite Program, Polar Operational Environmental Satellites, and the Small‐scale magNetospheric and Ionospheric Plasma Experiment (SNIPE). The SNIPE mission was designed to investigate micro‐scale plasma structures in Earth's ionosphere and magnetosphere. The SNIPE constellation was launched on 25 May 2023, and continues to operate in a dawn‐dusk Sun‐synchronous orbit at an altitude of approximately 530–550 km. In this paper, we report significant changes in topside electron density and temperature, measured by SNIPE. Furthermore, SNIPE observations are compared with independent ground‐based Total Electron Content measurements and data from other LEO satellites. Three characteristics of the data are highlighted. First, we address the unusual expansion of the Equatorial Ionization Anomaly around the magnetic equator and its hemispheric asymmetry, which is dependent on altitude. Second, a large Tongue of Ionization in the polar region extends to ∼840 km above the ground, accompanied by a weak decrease in electron temperature. Third, we report electron temperature enhancement near the auroral zones across a wide range of local times, which partially overlaps with energetic particle precipitation. These three results complement existing studies of the Mother's Day/Gannon geomagnetic storm.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.787
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.220
Teacher spread0.212 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it