Solar flux variation of the electron temperature morning overshoot in the equatorial F region

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F11%3A00366447" target="_blank" >RIV/68378289:_____/11:00366447 - isvavai.cz</a>

Result on the web

<a href="http://www.agu.org/pubs/crossref/2011/2010JA016235.shtml" target="_blank" >http://www.agu.org/pubs/crossref/2011/2010JA016235.shtml</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2010JA016235" target="_blank" >10.1029/2010JA016235</a>

Result language

angličtina

Original language name

Solar flux variation of the electron temperature morning overshoot in the equatorial F region

Original language description

Using 8 years of CHAMP satellite observations of the equatorial electron temperature, T(e), we investigate its behavior during the morning overshoot and at ionospheric altitudes below 450 km including its variation with solar activity. The morning T(e) has a maximum at the dip equator and decreases gradually with increasing latitude, which is due to the increasing importance of heat conduction as the dip angle becomes larger. The amplitude of the equatorial morning overshoot T(e) decreases with increasing solar flux by about -10 degrees K/solar flux unit depending on season and longitude. Trends of similar magnitude are predicted by the FLIP model. The model calculations confirm that the electron cooling due to enhanced electron-ion collisions increases faster than the heating of thermal electrons through collision with photoelectrons for increasing solar EUV. Both data and model showed that elevated electron temperatures persist to later local times during low solar activity.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DG - Atmospheric sciences, meteorology

OECD FORD branch

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Project

<a href="/en/project/GAP209%2F10%2F2086" target="_blank" >GAP209/10/2086: Modeling of variability of the thermal plasma parameters in the Earth's upper ionosphere and inner magnetosphere</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

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

Name of the periodical

Journal of Geophysical Research

ISSN

0148-0227

e-ISSN

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Volume of the periodical

116

Issue of the periodical within the volume

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Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

"A04308/1"-"A04308/13"

UT code for WoS article

000289644900005

EID of the result in the Scopus database

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