Identification Of Interplanetary Coronal Mass Ejection With Magnetic Cloud In Year 2005 At 1 AU

Abstract Coronal mass ejection CMEs propagate in to the interplanetary medium are called as Interplanetary Coronal Mass Ejection ICME. A set of signatures in plasma and magnetic field is used to identify the ICMEs. Magnetic Cloud MC is a special kind of ICMEs in which internal magnetic field configuration is similar like flux rope. We have used the data obtained from ACE Advance Composition Explorer ACE based in-situ measurements of Magnetic Field Experiment MAG and Solar Wind Electron Proton and Alpha Monitor SWEPAM experiment for the data of magnetic field and plasma parameters respectively. The magnetic field data and plasma parameters of ICMEs used to distinguish them as magnetic cloud non magnetic cloud. We analyzed eighteen ICMEs observed during January 2005 to December 2005 which is the beginning of declining phase of solar cycle 23. The analysis of magnetic field in the frames of the flux ropes like structure using a Minimum Variance Analysis MVA method and have identified 30 ICMEs in the year 2005 which shows magnetic field rotation in a plane and confirmed as ICMEs with MCs.