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Record W2921078584 · doi:10.1073/pnas.1815725116

Multiradionuclide evidence for an extreme solar proton event around 2,610 B.P. (∼660 BC)

2019· article· en· W2921078584 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.

fundA Canadian funder is recorded on the work.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueProceedings of the National Academy of Sciences · 2019
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAstro and Planetary Science
Canadian institutionsnot available
FundersNatural Environment Research CouncilNatural Resources CanadaNational Institute of Polar ResearchCommissariat à l'Énergie Atomique et aux Énergies AlternativesKorea Polar Research InstituteCentre National de la Recherche ScientifiqueChinese Academy of SciencesOffice of Polar ProgramsVlaamse regeringPolarforskningssekretariatetSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen ForschungFédération Wallonie-BruxellesMinistry of Education, Culture, Sports, Science and TechnologyAgence Nationale de la RechercheInstitut national des sciences de l'UniversVetenskapsrådetKorea Institute of Geoscience and Mineral ResourcesNational Science Foundation
KeywordsEvent (particle physics)ProtonEnvironmental scienceMeteorologyPhysicsAstrophysicsNuclear physics

Abstract

fetched live from OpenAlex

Significance This study provides evidence of an enormous solar storm around 2,610 B.P. It is only the third such event reliably documented and is comparable with the strongest event detected at AD 774/775. The event of 2,610 years B.P. stands out because of its particular signature in the radionuclide data [i.e., carbon-14 ( 14 C) data alone does not allow for an unequivocal detection of the event]. It illustrates that present efforts to find such events based solely on 14 C data likely lead to an underestimated number of such potentially devastating events for our society. In addition to 14 C data, high-resolution records of beryllium-10 and chlorine-36 are crucial for reliable estimates of the occurrence rate and the properties of past solar proton events.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.170
Threshold uncertainty score0.274

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.112
GPT teacher head0.339
Teacher spread0.227 · 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