Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfven waves coupling to the dayside magnetosphere

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dc.contributor.authorPrikryl, Paulen
dc.contributor.authorGillies, Robert G.en
dc.contributor.authorThemens, David R.en
dc.contributor.authorWeygand, James M.en
dc.contributor.authorThomas, Evan G.en
dc.contributor.authorChakraborty, Shibajien
dc.date.accessioned2023-04-24T16:55:47Zen
dc.date.available2023-04-24T16:55:47Zen
dc.date.issued2022-11en
dc.description.abstractDuring minor to moderate geomagnetic storms, caused by corotating interaction regions (CIRs) at the leading edge of high-speed streams (HSSs), solar wind Alfven waves modulated the magnetic reconnection at the dayside magnetopause. The Resolute Bay Incoherent Scatter Radars (RISR-C and RISR-N), measuring plasma parameters in the cusp and polar cap, observed ionospheric signatures of flux transfer events (FTEs) that resulted in the formation of polar cap patches. The patches were observed as they moved over the RISR, and the Canadian High-Arctic Ionospheric Network (CHAIN) ionosondes and GPS receivers. The coupling process modulated the ionospheric convection and the intensity of ionospheric currents, including the auroral electrojets. The horizontal equivalent ionospheric currents (EICs) are estimated from ground-based magnetometer data using an inversion technique. Pulses of ionospheric currents that are a source of Joule heating in the lower thermosphere launched atmospheric gravity waves, causing traveling ionospheric disturbances (TIDs) that propagated equatorward. The TIDs were observed in the SuperDual Auroral Radar Network (SuperDARN) high-frequency (HF) radar ground scatter and the detrended total electron content (TEC) measured by globally distributed Global Navigation Satellite System (GNSS) receivers.en
dc.description.notesInfrastructure funding for CHAIN was provided by the Canada Foundation for Innovation and the New Brunswick Innovation Foundation. CHAIN operation is conducted in collaboration with the Canadian Space Agency (CSA). Contributions by the ACE (Norman F. Nees at Bartol Research Institute, David J. McComas at SWRI), Geotail (Susumu Kokubun at STELAB Nagoya University), Wind spacecraft teams, NASA's SPDF/CDAWeb, and the NSSDC OMNIWeb are acknowledged. RISR-C is funded by the Canada Foundation for Innovation and led by the University of Calgary, University of Saskatchewan, Athabasca University, and SRI International. The authors acknowledge the use of SuperDARN data. SuperDARN is a collection of radars funded by the national scientific funding agencies of Australia, Canada, China, France, Italy, Japan, Norway, South Africa, United Kingdom, and the United States of America. The Christmas Valley SuperDARN radars are maintained and operated by Dartmouth College under support by NSF grant AGS-1934997. Operations of the Goose Bay, Kapuskasing, and Blackstone SuperDARN radars are supported by the National Science Foundation under award AGS-1935110. The operation of the Saskatoon radar is supported by the Canada Foundation for Innovation, the Canadian Space Agency, and the Province of Saskatchewan. We thank the many different groups operating magnetometer arrays for providing data for this study, including the THEMIS UCLA magnetometer network (Ground-based Imager and Magnetometer Network for Auroral Studies). The AUTUMNX magnetometer network is funded through the Canadian Space Agency/Geospace Observatory (GO) Canada program, Athabasca University, Centre for Science/Faculty of Science and Technology. The Magnetometer Array for Cusp and Cleft Studies (MACCS) array is supported by the US National Science Foundation grant ATM-0827903 to Augsburg College. The Solar and Terrestrial Physics (STEP) magnetometer file storage is at the Department of Earth and Planetary Physics, University of Tokyo and maintained by Kanji Hayashi (hayashi@grl.s.u-tokyo.ac.jp).The McMAC Project is sponsored by the Magnetospheric Physics Program of National Science Foundation through grant AGS-0245139. The ground magnetic stations are operated by the Technical University of Denmark, National Space Institute (DTU Space). The Canadian Space Science Data Portal is funded in part by the Canadian Space Agency contract numbers 9 F007-071429 and 9 F007-070993. The Canadian Magnetic Observatory Network (CANMON) is maintained and operated by the Geological Survey of Canada. David R. Themens's contribution to this work is supported in part through CSA grant no. 21SUSTCHAI and through the United Kingdom Natural Environment Research Council (NERC) EISCAT3D: Fine-scale structuring, scintillation, and electrodynamics (FINESSE) (NE/W003147/1) and DRivers and Impacts of Ionospheric Variability with EISCAT-3D (DRIIVE) (NE/W003368/1) projects. James M. Weygand acknowledges NASA grant: 80NSSC18K0570, 80NSSC18K1220, NASA contract: 80GSFC17C0018 (HPDE), NAS5-02099(THEMIS). Shibaji Chakraborty thanks the National Science Foundation for support under grant AGS-1935110.en
dc.description.sponsorshipCanada Foundation for Innovation; New Brunswick Innovation Foundation; national scientific funding agency of Australia; national scientific funding agency of Canada; national scientific funding agency of China; national scientific funding agency of France; national scientific funding agency of Italy; national scientific funding agency of Japan; national scientific funding agency of Norway; national scientific funding agency of South Africa; national scientific funding agency of United Kingdom; national scientific funding agency of United States of America; NSF [AGS-1934997]; National Science Foundation [AGS-1935110]; Canadian Space Agency; Province of Saskatchewan; Canadian Space Agency/Geospace Observatory (GO) Canada program, Athabasca University, Centre for Science/Faculty of Science and Technology; US National Science Foundation [ATM-0827903]; Magnetospheric Physics Program of National Science Foundation [AGS-0245139]; Canadian Space Agency [9 F007-071429, 9 F007-070993]; CSA [21SUSTCHAI]; United Kingdom Natural Environment Research Council (NERC) [NE/W003147/1, NE/W003368/1]; NASA [80NSSC18K0570, 80NSSC18K1220, 80GSFC17C0018, NAS5-02099]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.5194/angeo-40-619-2022en
dc.identifier.eissn1432-0576en
dc.identifier.issue6en
dc.identifier.urihttp://hdl.handle.net/10919/114765en
dc.identifier.volume40en
dc.language.isoenen
dc.publisherCopernicusen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectInterplanetary magnetic-fielden
dc.subjectatmospheric gravity-wavesen
dc.subjectflux-transfer eventsen
dc.subjectdissipative multiconstituent mediumen
dc.subjecthigh-latitude ionosphereen
dc.subjectradar observationsen
dc.subjectinteraction regionsen
dc.subjectglobal propagationen
dc.subjectf-regionen
dc.subjectrisr-cen
dc.titleMulti-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfven waves coupling to the dayside magnetosphereen
dc.title.serialAnnales Geophysicaeen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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