%0 Journal Article
%T EffectofInterplanetaryTransientsonCosmicRayAnisotropicVariations
%A Rajesh
%A K.
%A Mishra
%J 空间科学学报
%P 353-359
%D 2007
%X Inthepresentworkthecosmicrayintensitydatarecordedwithground-basedneutronmonitoratDeepRiverhasinvestigatedtakingintoaccounttheassociatedinterplanetarymagneticfieldandsolarwindplasmadataduring1981-1994.Alargenumberofdayshavingabnormallyhigh/lowamplitudesforsuccessivenumberoffiveormoredaysascomparedtoannualaverageamplitudeofdiurnalanisotropyhavebeentakenashigh/lowamplitudeanisotropicwavetrainevents(HAE/LAE).TheamplitudeofthediurnalanisotropyoftheseeventsisfoundtoincreaseonthedaysofmagneticcloudascomparedtothedayspriortotheeventanditfoundtodecreaseduringthelaterperiodoftheeventasthecloudpassestheEarth.TheHigh-SpeedSolarWindStreams(HSSWS)donotplayanysignificantroleincausingthesetypesofevents.Theinterplanetarydisturbances(magneticclouds)arealsoeffectiveinproducingcosmicraydecreases.HαsolarflareshaveagoodpositivecorrelationwithbothamplitudeanddirectionoftheanisotropyforHAEs,whereasPMSshaveagoodpositivecorrelationwithbothamplitudeanddirectionoftheanisotropyforLAEs.ThesourceresponsiblefortheseunusualanisotropicwavetrainsinCRhasbeenproposed.
%K Magneticfields
%K Prominences
%K Filaments
%K Flares
%K Solarwind
%K Cosmicray
%U http://www.cjss.ac.cn/CN/abstract/abstract905.shtml