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Nature
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Nature
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https://dx.doi.org/10.1038/214...
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Sporadic E in Middle Latitudes

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 1967 English Publisher:Springer Science and Business Media LLCJournal:Nature, volume 214, pages 261-261 (issn: 0028-0836, eissn: 1476-4687, Copyright policy )
Authors: J. D. WHITEHEAD;

doi: 10.1038/214261a0

Sporadic E in Middle Latitudes

Abstract

IN a recent paper, Layzer1 suggested that most middle latitude sporadic E layers are formed by discontinuities in the vertical motion of the neutral gas. Following his notation, w is the vertical velocity of ionization, and uz the neutral gas vertical velocity. Neglecting horizontal air movements and polarization fields, we have w≃uz {sin2 χ + cos2 χ/(1 + r2)} where χ is the angle of dip and r is the ratio of gyro-frequency to collision frequency of ions.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
bronze