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Ionospheric plasma transport across polar cap

Pokhotelov, Dimitry and Fernandez Gomez, Isabel and Günzkofer, Florian Ludwig and Borries, Claudia (2022) Ionospheric plasma transport across polar cap. Seminar über Microwave Physics and Atmospheric Physics, Inst. für Angewandte Physik, Univ. Bern, Schweiz.

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Official URL: http://www.iap.unibe.ch


Large-scale ionospheric plasma anomalies appear at high latitudes, extending across the polar cap as a tongue of ionisation and polar patches. Physical mechanisms responsible for the plasma uplifts and transport are investigated using global ionospheric circulation models driven by parameterised highlatitude plasma convection models. Various convection models are considered, including the models based on satellite data, radar data, and data assimilation models. Contributions from electrodynamic plasma transport and neutral wind forcing are assessed. Mechanisms responsible for the energy dissipation, including frictional heating and Joule dissipation, are investigated. The numerical simulations are compared with plasma density measurements by positioning GNSS satellites and ground radar observations. The results are discussed in the context of space weather modelling and GNSS signal scintillation modelling at polar latitudes.

Item URL in elib:https://elib.dlr.de/186940/
Document Type:Conference or Workshop Item (Speech)
Title:Ionospheric plasma transport across polar cap
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Pokhotelov, DimitryDimitry.Pokhotelov (at) dlr.dehttps://orcid.org/0000-0002-3712-0597
Fernandez Gomez, IsabelIsabel.FernandezGomez (at) dlr.deUNSPECIFIED
Günzkofer, Florian Ludwigflorian.guenzkofer (at) dlr.deUNSPECIFIED
Borries, Claudiaclaudia.borries (at) dlr.dehttps://orcid.org/0000-0001-9948-3353
Date:18 March 2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Polar ionosphere, modelling, gnss tomography, data assimilation
Event Title:Seminar über Microwave Physics and Atmospheric Physics
Event Location:Inst. für Angewandte Physik, Univ. Bern, Schweiz
Event Type:Other
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Solar-Terrestrial Physics SO
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics > Solar-Terrestrial Coupling Processes
Deposited By: Pokhotelov, Dimitry
Deposited On:28 Jun 2022 11:03
Last Modified:28 Jun 2022 11:03

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