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On the kinematics and thickness of the terrestrial bow shock
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SYSNO ASEP 0474649 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title On the kinematics and thickness of the terrestrial bow shock Author(s) Krupařová, Oksana (UFA-U) RID, ORCID
Krupař, Vratislav (UFA-U) RID, ORCID
Santolík, Ondřej (UFA-U) RID, ORCID
Souček, Jan (UFA-U) RID, ORCID
Šafránková, J. (CZ)
Němeček, Z. (CZ)
Němec, F. (CZ)
Maksimovic, M. (FR)Number of authors 8 Source Title Geophysical Research Abstracts. - Göttingen : European Geosciences Union, 2017 - ISSN 1607-7962
EGU2017-9078Number of pages 1 s. Publication form Online - E Action EGU General Assembly 2017 Event date 23.04.2017 - 28.04.2017 VEvent location Vienna Country AT - Austria Event type WRD Language eng - English Country DE - Germany Keywords magnetosphere ; solar wind ; terrestrial bow shock ; wave-particle interactions Subject RIV BL - Plasma and Gas Discharge Physics Institutional support UFA-U - RVO:68378289 Annotation The bow shock (BS) is formed due to the continuous interaction between the supersonic solar wind and the Earth’s
magnetosphere ahead of the magnetopause. Thanks to its proximity, BS is a perfect object to study a wide range
of phenomena related to collisionless shocks and wave-particle interactions. We have analyzed more than 500
quasi-perpendicular BS crossings between 2001 and 2015 using data retrieved by the magnetometers aboard the
four Cluster spacecraft. Applying a simple timing method to four-point measurement, we estimated the BS normal
direction and velocity along this direction case by case. Next, we applied the Butterworth filter to numerical
derivations of time-intensity profiles to estimate temporal sizes of BS magnetic ramps, and consequently spatial
ones using obtained velocities. We have found that BS ramp scales are statistically around 50 km. We discuss
relation between the BS ramp scales and both Alfven and magnetosonic Mach numbers.Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2018
Number of the records: 1