The Angular Distribution of Lower Band Chorus Waves Near Plasmaspheric Plumes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F22%3A00557815" target="_blank" >RIV/68378289:_____/22:00557815 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/22:10456510

Výsledek na webu

<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022GL098710" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022GL098710</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2022GL098710" target="_blank" >10.1029/2022GL098710</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Angular Distribution of Lower Band Chorus Waves Near Plasmaspheric Plumes

Popis výsledku v původním jazyce

Plumes have been identified as an access region for chorus waves to enter the plasmasphere. Here, for the first time, chorus wave properties are parameterized by distance from the plume boundary. Case studies and statistical analysis indicate that the polar wave vector angle, theta(k), of chorus becomes more oblique near the plume edge. Occurrence rates of theta(k) > 35 degrees on the plume boundary are approximately double that observed further away from the plume. Whilst the increase in theta(k) is apparent on both plume edges, the distribution of theta(k) exhibits different behavior between the Eastward and Westward boundaries. In general, the distribution of azimuthal wave vector angles, phi(k), is symmetric about the anti-Earthwards direction. However, near the Eastward plume boundary, an Eastwards skew of phi(k) is reported. This result provides new insight on chorus propagation in the context of the chorus-to-hiss mechanism, and has implications for quantifying wave-particle interactions in the near-plume region.

Název v anglickém jazyce

The Angular Distribution of Lower Band Chorus Waves Near Plasmaspheric Plumes

Popis výsledku anglicky

Plumes have been identified as an access region for chorus waves to enter the plasmasphere. Here, for the first time, chorus wave properties are parameterized by distance from the plume boundary. Case studies and statistical analysis indicate that the polar wave vector angle, theta(k), of chorus becomes more oblique near the plume edge. Occurrence rates of theta(k) > 35 degrees on the plume boundary are approximately double that observed further away from the plume. Whilst the increase in theta(k) is apparent on both plume edges, the distribution of theta(k) exhibits different behavior between the Eastward and Westward boundaries. In general, the distribution of azimuthal wave vector angles, phi(k), is symmetric about the anti-Earthwards direction. However, near the Eastward plume boundary, an Eastwards skew of phi(k) is reported. This result provides new insight on chorus propagation in the context of the chorus-to-hiss mechanism, and has implications for quantifying wave-particle interactions in the near-plume region.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/LTAUSA17070" target="_blank" >LTAUSA17070: Elektromagnetické vlny v planetárních ionosférách a magnetosférách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

1944-8007

Svazek periodika

49

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

e2022GL098710

Kód UT WoS článku

000796531800001

EID výsledku v databázi Scopus

2-s2.0-85130092741