Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere
During minor to moderate geomagnetic storms, caused by corotating interaction regions (CIRs) at the leading edge of high-speed streams (HSSs), solar wind Alfvén waves modulated the magnetic reconnection at the dayside magnetopause. The Resolute Bay Incoherent Scatter Radars (RISR-C and RISR-N), meas...
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ftdoajarticles:oai:doaj.org/article:d56e0573fcdc4d99a29e4c7bdef1e87b 2023-05-15T15:07:23+02:00 Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere P. Prikryl R. G. Gillies D. R. Themens J. M. Weygand E. G. Thomas S. Chakraborty 2022-11-01T00:00:00Z https://doi.org/10.5194/angeo-40-619-2022 https://doaj.org/article/d56e0573fcdc4d99a29e4c7bdef1e87b EN eng Copernicus Publications https://angeo.copernicus.org/articles/40/619/2022/angeo-40-619-2022.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-40-619-2022 0992-7689 1432-0576 https://doaj.org/article/d56e0573fcdc4d99a29e4c7bdef1e87b Annales Geophysicae, Vol 40, Pp 619-639 (2022) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2022 ftdoajarticles https://doi.org/10.5194/angeo-40-619-2022 2022-12-30T21:47:59Z During minor to moderate geomagnetic storms, caused by corotating interaction regions (CIRs) at the leading edge of high-speed streams (HSSs), solar wind Alfvén 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. Article in Journal/Newspaper Arctic Canadian High Arctic Ionospheric Network Resolute Bay Directory of Open Access Journals: DOAJ Articles Arctic Resolute Bay ENVELOPE(-94.842,-94.842,74.677,74.677) Annales Geophysicae 40 6 619 639 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 P. Prikryl R. G. Gillies D. R. Themens J. M. Weygand E. G. Thomas S. Chakraborty Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
During minor to moderate geomagnetic storms, caused by corotating interaction regions (CIRs) at the leading edge of high-speed streams (HSSs), solar wind Alfvén 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. |
format |
Article in Journal/Newspaper |
author |
P. Prikryl R. G. Gillies D. R. Themens J. M. Weygand E. G. Thomas S. Chakraborty |
author_facet |
P. Prikryl R. G. Gillies D. R. Themens J. M. Weygand E. G. Thomas S. Chakraborty |
author_sort |
P. Prikryl |
title |
Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere |
title_short |
Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere |
title_full |
Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere |
title_fullStr |
Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere |
title_full_unstemmed |
Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere |
title_sort |
multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind alfvén waves coupling to the dayside magnetosphere |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/angeo-40-619-2022 https://doaj.org/article/d56e0573fcdc4d99a29e4c7bdef1e87b |
long_lat |
ENVELOPE(-94.842,-94.842,74.677,74.677) |
geographic |
Arctic Resolute Bay |
geographic_facet |
Arctic Resolute Bay |
genre |
Arctic Canadian High Arctic Ionospheric Network Resolute Bay |
genre_facet |
Arctic Canadian High Arctic Ionospheric Network Resolute Bay |
op_source |
Annales Geophysicae, Vol 40, Pp 619-639 (2022) |
op_relation |
https://angeo.copernicus.org/articles/40/619/2022/angeo-40-619-2022.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-40-619-2022 0992-7689 1432-0576 https://doaj.org/article/d56e0573fcdc4d99a29e4c7bdef1e87b |
op_doi |
https://doi.org/10.5194/angeo-40-619-2022 |
container_title |
Annales Geophysicae |
container_volume |
40 |
container_issue |
6 |
container_start_page |
619 |
op_container_end_page |
639 |
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1766338898790711296 |