Magnetospheric line radiation: 6.5 years of observations by the DEMETER spacecraft

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F15%3A00455040" target="_blank" >RIV/68378289:_____/15:00455040 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/15:10319778

Výsledek na webu

<a href="http://dx.doi.org/10.1002/2015JA021246" target="_blank" >http://dx.doi.org/10.1002/2015JA021246</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/2015JA021246" target="_blank" >10.1002/2015JA021246</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetospheric line radiation: 6.5 years of observations by the DEMETER spacecraft

Popis výsledku v původním jazyce

Frequency-time spectrograms of electromagnetic waves observed in the inner magnetosphere in the frequency range of about 1–8 kHz are sometimes formed by several nearly horizontal and almost equidistant intense lines. Such events are called magnetospheric line radiation (MLR). We use a list of 1230 MLR events identified in all the data measured by the low-altitude satellite Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions (DEMETER) during the duration of the mission (2004–2010). We compare the occurrence of MLR events with solar wind parameters and geomagnetic indices using a superposed epoch analysis. It is found that MLR events occur more often after periods of enhanced geomagnetic activity, being statistically related to specific solar wind parameters. Moreover, the length of the analyzed time interval allows us to investigate the influence of the solar cycle and the season of the year. The events occur more often during the northern winter and spring than during the northern summer. As for the spatial distribution of the events, they occur less frequently at geomagnetic longitudes of the South Atlantic Anomaly.

Název v anglickém jazyce

Magnetospheric line radiation: 6.5 years of observations by the DEMETER spacecraft

Popis výsledku anglicky

Frequency-time spectrograms of electromagnetic waves observed in the inner magnetosphere in the frequency range of about 1–8 kHz are sometimes formed by several nearly horizontal and almost equidistant intense lines. Such events are called magnetospheric line radiation (MLR). We use a list of 1230 MLR events identified in all the data measured by the low-altitude satellite Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions (DEMETER) during the duration of the mission (2004–2010). We compare the occurrence of MLR events with solar wind parameters and geomagnetic indices using a superposed epoch analysis. It is found that MLR events occur more often after periods of enhanced geomagnetic activity, being statistically related to specific solar wind parameters. Moreover, the length of the analyzed time interval allows us to investigate the influence of the solar cycle and the season of the year. The events occur more often during the northern winter and spring than during the northern summer. As for the spatial distribution of the events, they occur less frequently at geomagnetic longitudes of the South Atlantic Anomaly.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

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

120

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

9442-9456

Kód UT WoS článku

000368252100015

EID výsledku v databázi Scopus

2-s2.0-84955168892