Plasmaspheric Hiss: Coherent and Intense
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F18%3A00501724" target="_blank" >RIV/68378289:_____/18:00501724 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/18:10407574
Result on the web
<a href="http://dx.doi.org/10.1029/2018JA025975" target="_blank" >http://dx.doi.org/10.1029/2018JA025975</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2018JA025975" target="_blank" >10.1029/2018JA025975</a>
Alternative languages
Result language
angličtina
Original language name
Plasmaspheric Hiss: Coherent and Intense
Original language description
Intense similar to 300-Hz to 1.0-kHz plasmaspheric hiss was studied using Polar plasma wave data. It is found that the waves are coherent in all local time sectors with the wave coherency occurring in approximately three- to five-wave cycle packets. The plasmaspheric hiss in the dawn and local noon time sector are found to be substorm (AE*) and storm (SYM-H*) dependent. The local noon sector is also solar wind pressure dependent. It is suggested that coherent chorus monochromatic subelements enter the plasmasphere (as previously suggested by ray tracing models) to explain these plasmaspheric hiss features. The presence of intense, coherent plasmaspheric hiss in the local dusk and local midnight time sectors is surprising and more difficult to explain. For the dusk sector waves, either local in situ plasmaspheric wave generation or propagation from the dayside plasmasphere is possible. There is little evidence to support substorm generation of the midnight sector plasmaspheric hiss found in this study. One possible explanation is propagation from the local noon sector. The combination of high wave intensity and coherency at all local times strengthens the suggestion that the electron slot is formed during substorm intervals instead of during geomagnetic quiet (by incoherent waves). Plasmaspheric hiss is found to propagate at all angles relative to the ambient magnetic field, theta(kB). Circular, elliptical, and linear polarized plasmaspheric hiss have been detected. No obvious, strong relationship between the wave polarization and theta(kB) was found. This information of hiss properties should be useful in modeling wave-particle interactions within the plasmasphere.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/LTAUSA17070" target="_blank" >LTAUSA17070: Electromagnetic waves in planetary ionospheres and magnetospheres</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
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
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Volume of the periodical
123
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
21
Pages from-to
10009-10029
UT code for WoS article
000455655700001
EID of the result in the Scopus database
2-s2.0-85057976941