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Geophysical Research Letters
Article . 1996 . Peer-reviewed
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Analysis and modeling of microburst precipitation

Authors: S. Datta; R. M. Skoug; M. P. McCarthy; G. K. Parks;

Analysis and modeling of microburst precipitation

Abstract

Observations from a recent rocket experiment that measured electrons over the energy range of 1–300 keV shows that microburst temporal structures exist from about 20 keV to >120 keV. Simultaneous observations at five different pitch‐angles (0°–90°) show the distribution is nearly isotropic during the bursts, while at low activity (quiet times and the valleys between microbursts) the distribution is anisotropic with higher fluxes at larger pitch‐angles. The energy spectra were reasonably fit with a Maxwellian, with an e‐folding energy Eo≈6–9 keV for α=0°, which increases to ≈ 10 keV at 67°. A modeling of electron spectra using the theory of pitch‐angle diffusion can reproduce the observed spectra, suggesting pitch‐angle scattering of electrons due to a wave‐particle interaction is the primary mechanism responsible for microbursts.

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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!
9
Average
Top 10%
Average
gold