Kelvin-Helmholtz wave at the subsolar magnetopause boundary layer under radial IMF

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10334402" target="_blank" >RIV/00216208:11320/16:10334402 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/2016JA023068" target="_blank" >http://dx.doi.org/10.1002/2016JA023068</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/2016JA023068" target="_blank" >10.1002/2016JA023068</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Kelvin-Helmholtz wave at the subsolar magnetopause boundary layer under radial IMF

Popis výsledku v původním jazyce

We present the first observation of the Kelvin-Helmholtz (KH) rolled-up vortex at the dayside magnetopause layers under a radial interplanetary magnetic field (IMF). The study uses measurements of four Time History of Events and Macroscale Interactions during Substorms (THEMIS) probes aligned along the Y-GSE axis about 10 R-E upstream of the Earth and located in different regions of the near-Earth environment. THEMIS C and A serve as monitors of the quiet solar wind and fluctuating magnetosheath conditions, respectively, and THEMIS D and E observe the magnetopause and low-latitude boundary layer (LLBL) crossings. The analysis shows the following: (1) a radial IMF changes to the southward pointing magnetosheath magnetic field; (2) dayside reconnection forms the thin but dense LLBL; (3) a large velocity shear at the LLBL inner edge excites a train of KH waves; and (4) in spite of a short path from the subsolar point (approximate to 5 R-E), one of the KH waves exhibits all features of a fully developed rolled-up vortex.

Název v anglickém jazyce

Kelvin-Helmholtz wave at the subsolar magnetopause boundary layer under radial IMF

Popis výsledku anglicky

We present the first observation of the Kelvin-Helmholtz (KH) rolled-up vortex at the dayside magnetopause layers under a radial interplanetary magnetic field (IMF). The study uses measurements of four Time History of Events and Macroscale Interactions during Substorms (THEMIS) probes aligned along the Y-GSE axis about 10 R-E upstream of the Earth and located in different regions of the near-Earth environment. THEMIS C and A serve as monitors of the quiet solar wind and fluctuating magnetosheath conditions, respectively, and THEMIS D and E observe the magnetopause and low-latitude boundary layer (LLBL) crossings. The analysis shows the following: (1) a radial IMF changes to the southward pointing magnetosheath magnetic field; (2) dayside reconnection forms the thin but dense LLBL; (3) a large velocity shear at the LLBL inner edge excites a train of KH waves; and (4) in spite of a short path from the subsolar point (approximate to 5 R-E), one of the KH waves exhibits all features of a fully developed rolled-up vortex.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP209%2F12%2F1774" target="_blank" >GAP209/12/1774: Role slunečního větru v procesech na magnetosférických hranicích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Geophysical Research - Space Physics

ISSN

2169-9380

e-ISSN

—

Svazek periodika

121

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

9863-9879

Kód UT WoS článku

000388965900035

EID výsledku v databázi Scopus

2-s2.0-84995745298