NDLI: Modeling the time behavior of the D st index during the main phase of magnetic storms generated by various types of solar wind

Please wait, while we are loading the content...

Modeling the time behavior of the D st index during the main phase of magnetic storms generated by various types of solar wind

Content Provider	Springer Nature Link
Author	Nikolaeva, N. S. Yermolaev, Yu. I. Lodkina, I. G.
Copyright Year	2013
Abstract	Results of modeling the time behavior of the D st index at the main phase of 93 geomagnetic storms (−250 < D st ≤ −50 nT) caused by different types of solar wind (SW) streams: magnetic clouds (MC, 10 storms), corotating interaction regions (CIR, 31 storms), the compression region before interplanetary coronal ejections (Sheath before ICME, 21 storms), and “pistons” (Ejecta, 31 storms) are presented. The “Catalog of Large-Scale Solar Wind Phenomena during 1976–2000” ( ftp://ftp.iki.rssi.ru/pub/omni/ ) created on the basis of the OMNI database was the initial data for the analysis. The main phase of magnetic storms is approximated by a linear dependence on the main parameters of the solar wind: integral electric field sumEy, dynamic pressure P d , and fluctuation level sB in IMF. For all types of SW, the main phase of magnetic storms is better modeled by individual values of the approximation coefficients: the correlation coefficient is high and the standard deviation between the modeled and measured values of D st is low. The accuracy of the model in question is higher for storms from MC and is lower by a factor of ∼2 for the storms from other types of SW. The version of the model with the approximation coefficients averaged over SW type describes worse variations of the measured D st index: the correlation coefficient is the lowest for the storms caused by MC and the highest for the Sheath- and CIR-induced storms. The model accuracy is the highest for the storms caused by Ejecta and, for the storms caused by Sheath, is a factor of ∼1.42 lower. Addition of corrections for the prehistory of the development of the beginning of the main phase of the magnetic storm improves modeling parameters for all types of interplanetary sources of storms: the correlation coefficient varies within the range from r = 0.81 for the storms caused by Ejecta to r = 0.85 for the storms caused by Sheath. The highest accuracy is for the storms caused by MC. It is, by a factor of ∼1.5, lower for the Sheath-induced storms.
Starting Page	401
Ending Page	412
Page Count	12
File Format	PDF
ISSN	00109525
Journal	Cosmic Research
Volume Number	51
Issue Number	6
e-ISSN	16083075
Language	English
Publisher	Springer US
Publisher Date	2013-11-26
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astronomy, Astrophysics and Cosmology Astrophysics and Astroparticles Extraterrestrial Physics, Space Sciences
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Aerospace Engineering Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Modeling of the corrected D st * index temporal profile on the main phase of the magnetic storms generated by different types of solar wind

Study of cosmic ray intensity and geomagnetic storms with solar wind parameters during the period 1998–2005

Relative occurrence rate and geoeffectiveness of large-scale types of the solar wind

Algebra and statistics of the solar wind

Solar Wind Conditions and Composition During the Genesis Mission as Measured by in situ Spacecraft

Flux and isotopic composition of helium in the ancient solar wind

Reflection of solar wind protons from magnetic anomalies of the moon

Rapid variations of the value and direction of the solar wind ion flux

Fast measurements of parameters of the Solar Wind using the BMSW instrument

Modeling the time behavior of the D st index during the main phase of magnetic storms generated by various types of solar wind

Similar Documents

Modeling of the corrected D st * index temporal profile on the main phase of the magnetic storms generated by different types of solar wind

Study of cosmic ray intensity and geomagnetic storms with solar wind parameters during the period 1998–2005

Relative occurrence rate and geoeffectiveness of large-scale types of the solar wind

Algebra and statistics of the solar wind

Solar Wind Conditions and Composition During the Genesis Mission as Measured by in situ Spacecraft

Flux and isotopic composition of helium in the ancient solar wind

Reflection of solar wind protons from magnetic anomalies of the moon

Rapid variations of the value and direction of the solar wind ion flux

Fast measurements of parameters of the Solar Wind using the BMSW instrument

Modeling the time behavior of the D st index during the main phase of magnetic storms generated by various types of solar wind