%0 Journal Article
%T ResponseoftheIonosphericF2-regionOverIrkutskandHainantoStrongGeomagneticStorms
%A EB
%A Romanova
%A GA
%A Zherebtsov
%A KG
%A Ratovsky
%A NM
%A Polekh
%A JK
%A Shi
%A XWang
%A GJ
%A Wang
%J 空间科学学报
%P 494-500
%D 2013
%X Theionosphericresponsestotwostrongstormson17-19August2003and22-23January2004arestudied,usingthedatafromIrkutsk(52.5°N,104°E)andHainan(19.5°N,109°E)ionosphericstations.TheanalysisofvariationsinrelativedeviationsofthecriticalfrequencyΔf0F2revealedthatatmiddlelatitudes(Irkutsk)negativedisturbanceswereobservedinthesummerionosphere;positiveandnegativeones,inthewinterionosphereduringthemainandrecoveryphasesrespectively.Atlowlatitudes(Hainan),thedisturbanceswerepositiveinallthecasesconsidered.MechanismsofthedisturbanceswereanalyzedwiththeaidofempiricalmodelsoftheneutralatmosphereNRLMSISE-00andthermosphericwindHWM07.ThemainfactorsdeterminingΔf0F2variationsatmiddlelatitudesduringthestormsweredemonstratedtobethedisturbedequatorwardthermosphericwindtransportingthedisturbedatmosphericcomposition,theincreaseintheatomicoxygenconcentration,andthepassageofinternalgravitywaves.Atlowlatitudes,theeffectsassociatedwithneutralcompositionvariationsarelesssignificantthanthoseofthethermosphericwindandelectricfields.
%K Ionosphere
%K Geomagneticstorm
%K Thermosphericwind
%K Drift
%U http://www.cjss.ac.cn/CN/abstract/abstract1972.shtml