A model of the subpacket structure of rising tone chorus emissions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F20%3A00531477" target="_blank" >RIV/68378289:_____/20:00531477 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/20:10414206
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JA028094" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JA028094</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2020JA028094" target="_blank" >10.1029/2020JA028094</a>
Alternative languages
Result language
angličtina
Original language name
A model of the subpacket structure of rising tone chorus emissions
Original language description
The nonlinear growth theory of chorus emissions is used to develop a simple model of the subpacket formation. The model assumes that the resonant current, which is released from the source to the upstream region, radiates a new whistler mode wave with a slightly increased frequency, which triggers a new subpacket. Saturation of the growth in amplitude is controlled by the optimum amplitude. Numerical solution of advection equations for each subpacket, with the chorus equations acting as the boundary conditions, produces a chorus element with a subpacket structure. This element features an upstream shift of the source region with time and an irregular growth of frequency, showing small decreases between adjacent subpackets. The influence of input parameters on the number of subpackets, the shift of the source, the frequency sweep rate and the maximum amplitude is analyzed. The model well captures basic features of instantaneous frequency measurements provided by the Van Allen Probes spacecraft. The modeled wave field can be used in future particle acceleration studies.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Geophysical Research: Space Physics
ISSN
2169-9380
e-ISSN
—
Volume of the periodical
125
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
e2020JA028094
UT code for WoS article
000577125000047
EID of the result in the Scopus database
2-s2.0-85089900806