Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysis
A comparison of specific interplanetary conditions for 798 magnetic storms with Dst <−50 nT during 1976–2000 was made on the basis of the OMNI archive data. We categorized various large-scale types of solar wind as interplanetary drivers of storms: corotating interaction region...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2010-12-01
|
| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/28/2177/2010/angeo-28-2177-2010.pdf |
| _version_ | 1819240830205952000 |
|---|---|
| author | Yu. I. Yermolaev N. S. Nikolaeva I. G. Lodkina M. Yu. Yermolaev |
| author_facet | Yu. I. Yermolaev N. S. Nikolaeva I. G. Lodkina M. Yu. Yermolaev |
| author_sort | Yu. I. Yermolaev |
| collection | DOAJ |
| description | A comparison of specific interplanetary conditions for 798 magnetic storms
with Dst <−50 nT
during 1976–2000 was made on the basis
of the OMNI archive data. We categorized various large-scale types of solar wind
as interplanetary drivers of storms: corotating interaction region (CIR), Sheath,
interplanetary CME (ICME) including
both magnetic cloud (MC) and Ejecta, separately MC
and Ejecta, and "Indeterminate" type. The data processing was carried out by
the method of
double superposed epoch analysis which uses two reference times (onset of storm
and minimum
of Dst index) and makes a re-scaling of the main phase of the storm in a such way
that
all storms have equal durations of the main phase in the
new time reference frame. This method reproduced some well-known results and allowed
us to obtain some new results. Specifically,
obtained results demonstrate
that (1) in accordance with "output/input" criteria the highest efficiency
in generation of magnetic storms
is observed for Sheath and the lowest one for MC, and (2) there are
significant differences in the
properties of MC and Ejecta and in their
efficiencies. |
| first_indexed | 2024-12-23T14:14:15Z |
| format | Article |
| id | doaj.art-a6f47332c7fc49b381666cd158a65f03 |
| institution | Directory Open Access Journal |
| issn | 0992-7689 1432-0576 |
| language | English |
| last_indexed | 2024-12-23T14:14:15Z |
| publishDate | 2010-12-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Annales Geophysicae |
| spelling | doaj.art-a6f47332c7fc49b381666cd158a65f032022-12-21T17:43:58ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762010-12-01282177218610.5194/angeo-28-2177-2010Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysisYu. I. Yermolaev0N. S. Nikolaeva1I. G. Lodkina2M. Yu. Yermolaev3Space Plasma Physics Department, Space Research Institute (IKI), Russian Academy of Sciences, Profsoyuznaya 84/32, Moscow 117997, RussiaSpace Plasma Physics Department, Space Research Institute (IKI), Russian Academy of Sciences, Profsoyuznaya 84/32, Moscow 117997, RussiaSpace Plasma Physics Department, Space Research Institute (IKI), Russian Academy of Sciences, Profsoyuznaya 84/32, Moscow 117997, RussiaSpace Plasma Physics Department, Space Research Institute (IKI), Russian Academy of Sciences, Profsoyuznaya 84/32, Moscow 117997, RussiaA comparison of specific interplanetary conditions for 798 magnetic storms with Dst <−50 nT during 1976–2000 was made on the basis of the OMNI archive data. We categorized various large-scale types of solar wind as interplanetary drivers of storms: corotating interaction region (CIR), Sheath, interplanetary CME (ICME) including both magnetic cloud (MC) and Ejecta, separately MC and Ejecta, and "Indeterminate" type. The data processing was carried out by the method of double superposed epoch analysis which uses two reference times (onset of storm and minimum of Dst index) and makes a re-scaling of the main phase of the storm in a such way that all storms have equal durations of the main phase in the new time reference frame. This method reproduced some well-known results and allowed us to obtain some new results. Specifically, obtained results demonstrate that (1) in accordance with "output/input" criteria the highest efficiency in generation of magnetic storms is observed for Sheath and the lowest one for MC, and (2) there are significant differences in the properties of MC and Ejecta and in their efficiencies.https://www.ann-geophys.net/28/2177/2010/angeo-28-2177-2010.pdf |
| spellingShingle | Yu. I. Yermolaev N. S. Nikolaeva I. G. Lodkina M. Yu. Yermolaev Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysis Annales Geophysicae |
| title | Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysis |
| title_full | Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysis |
| title_fullStr | Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysis |
| title_full_unstemmed | Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysis |
| title_short | Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysis |
| title_sort | specific interplanetary conditions for cir sheath and icme induced geomagnetic storms obtained by double superposed epoch analysis |
| url | https://www.ann-geophys.net/28/2177/2010/angeo-28-2177-2010.pdf |
| work_keys_str_mv | AT yuiyermolaev specificinterplanetaryconditionsforcirsheathandicmeinducedgeomagneticstormsobtainedbydoublesuperposedepochanalysis AT nsnikolaeva specificinterplanetaryconditionsforcirsheathandicmeinducedgeomagneticstormsobtainedbydoublesuperposedepochanalysis AT iglodkina specificinterplanetaryconditionsforcirsheathandicmeinducedgeomagneticstormsobtainedbydoublesuperposedepochanalysis AT myuyermolaev specificinterplanetaryconditionsforcirsheathandicmeinducedgeomagneticstormsobtainedbydoublesuperposedepochanalysis |