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

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.agu.org/pubs/crossref/2011/2010JA016235.shtml
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. 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. (en)
Title	Solar flux variation of the electron temperature morning overshoot in the equatorial F region Solar flux variation of the electron temperature morning overshoot in the equatorial F region (en)
skos:prefLabel	Solar flux variation of the electron temperature morning overshoot in the equatorial F region Solar flux variation of the electron temperature morning overshoot in the equatorial F region (en)
skos:notation	RIV/68378289:_____/11:00366447!RIV12-AV0-68378289
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP209/10/2086), Z(AV0Z30420517)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Truhlík, Vladimír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky atmosféry AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	230476
http://linked.open...ai/riv/idVysledku	RIV/68378289:_____/11:00366447
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	IONOSPHERIC PHOTOELECTRON FLUX; MODEL; DENSITY; ATMOSPHERE; ION (en)
http://linked.open.../riv/klicoveSlovo	DENSITY MODEL ATMOSPHERE ION IONOSPHERIC PHOTOELECTRON FLUX
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[A892146D7C54]
http://linked.open...i/riv/nazevZdroje	Journal of Geophysical Research
http://linked.open...in/vavai/riv/obor	DG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Modeling of variability of the thermal plasma parameters in the Earth's upper ionosphere and inner magnetosphere
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	116
http://linked.open...iv/tvurceVysledku	Liu, H. Truhlík, Vladimír Lühr, H. Richards, G. Stolle, C.
http://linked.open...ain/vavai/riv/wos	000289644900005
http://linked.open...n/vavai/riv/zamer	Studium atmosférického obalu Země v interakci s pozemskými a kosmickými vlivy
issn	0148-0227
number of pages	13 (xsd:int)
http://bibframe.org/vocab/doi	10.1029/2010JA016235

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