Physics – Space Physics
Scientific paper
2011-11-29
Physics
Space Physics
18 pages, 4 figures, 2 tables, submitted to JGR special issue "Response of Geospace to High-Speed Streams"
Scientific paper
Statistical analysis of Dst behaviour during recovery phase of magnetic storms induced by different types of interplanetary drivers is made on the basis of OMNI data in period 1976-2000. We study storms induced by ICMEs (including magnetic clouds (MC) and Ejecta) and both types of compressed regions: corotating interaction regions (CIR) and Sheaths. The shortest, moderate and longest durations of recovery phase are observed in ICME-, CIR-, and Sheath-induced storms, respectively. Recovery phases of strong ($Dst_{min} < -100$ nT) magnetic storms are well approximated by hyperbolic functions $Dst(t)= a/(1+t/\tau_h)$ with constant $\tau_h$ times for all types of drivers while for moderate ($-100 < Dst_{min} < -50$ nT) storms $Dst$ profile can not be approximated by hyperbolic function with constant $\tau_h$ because hyperbolic time $\tau_h$ increases with increasing time of recovery phase. Relation between duration and value $Dst_{min}$ for storms induced by ICME and Sheath has 2 parts: $Dst_{min}$ and duration correlate at small durations while they anticorrelate at large durations.
Lodkina Irina G.
Nikolaeva Nadezhda S.
Yermolaev Michael Yu.
Yermolaev Yu I.
No associations
LandOfFree
Recovery phase of magnetic storms induced by different interplanetary drivers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Recovery phase of magnetic storms induced by different interplanetary drivers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery phase of magnetic storms induced by different interplanetary drivers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-16966