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The aa indices: A 100-year series characterizing the magnetic activity
Abstract
After the 100-year series of the aa indices is described, two results are set forth. The general trend of the activity variation permits us to forecast a very-low level of intensity (3–4 in Ap units for the yearly values) during the next solar minimums (this finding would be of interest in magnetospheric studies), and the annual variation of the activity is definitely proved.
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Citations
Cited by
Hathaway, D. H. (2015) · Living Reviews in Solar Physics · doi:10.1007/lrsp-2015-4 · Cited by 1,180
Derivation, Meaning, and Use of Geomagnetic Indices
Mayaud, P. N. (1980) · Geophysical Monograph Series · doi:10.1029/gm022 · Cited by 830
Self-citationA doubling of the Sun's coronal magnetic field during the past 100 years
Lockwood, M., Stamper, R., & Wild, M. N. (1999) · Nature · doi:10.1038/20867 · Cited by 548
Solar radiative output and its variability: evidence and mechanisms
Fr�hlich, C., & Lean, J. (2004) · The Astronomy and Astrophysics Review · doi:10.1007/s00159-004-0024-1 · Cited by 406
Metadata
- Authors
- Mayaud, P.-N.
- Venue
- Journal of Geophysical Research
- Publisher
- American Geophysical Union (AGU)
- Published
- 1972-12-01
- Volume
- 77
- Issue
- 34
- Pages
- 6870-6874
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W2068821981
- Cited by
- 340
- References
- 0
- FWCI
- 1.06
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: The aa indices: A 100-year series characterizing the magnetic activity. https://app.cochat.ai/papers/10.1029/ja077i034p06870
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- Mayaud, P.-N. (1972). The aa indices: A 100-year series characterizing the magnetic activity. Journal of Geophysical Research. https://doi.org/10.1029/ja077i034p06870
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
