Joule Heating rate at high-latitudes by Swarm and ground-based observations compared to MHD simulations

Kauristie, Kirsti; Marghitu, Octav; van de Kamp, Max; Hoppe, Theresa; Honkonen, Ilja; Blagau, Adrian; Ivan, Ionut Madalin; Codrescu, Mihail; Ridley, Aaron; Tóth, Gábor; Ogawa, Yasunobu; Trenchi, Lorenzo

doi:10.1016/j.jastp.2024.106254

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Joule Heating rate at high-latitudes by Swarm and ground-based observations compared to MHD simulations

2024
By Kauristie, Kirsti ; Marghitu, Octav ; van de Kamp, Max ; ...
Source: Journal of Atmospheric and Solar-Terrestrial Physics, 260, 106254

[PDF-4.23 MB]

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Journal Title:

Journal of Atmospheric and Solar-Terrestrial Physics
Personal Author:

Kauristie, Kirsti ; Marghitu, Octav ; van de Kamp, Max ; Hoppe, Theresa ; Honkonen, Ilja ; ... More +

Kauristie, Kirsti ; Marghitu, Octav ; van de Kamp, Max ; Hoppe, Theresa ; Honkonen, Ilja ; Blagau, Adrian ; Ivan, Ionut Madalin ; Codrescu, Mihail ; Ridley, Aaron ; Tóth, Gábor ; Ogawa, Yasunobu ; Trenchi, Lorenzo Less -
NOAA Program & Office:

NWS (National Weather Service) ; SWPC (Space Weather Prediction Center)

NWS (National Weather Service) ; SWPC (Space Weather Prediction Center) Less -
Description:

We compare Joule Heating rates as derived from ground-based magnetic field and all-sky camera data, from Low Earth Orbit satellite data (ESA Swarm) and from a MHD simulation (GUMICS-5) with each other in a case study of an auroral arc system. The observational estimates of Joule Heating rates provide information on regional scales and with high spatial resolution (10–100 km). Their comparison with global MHD results is conducted for a quiet time interval of a few minutes, just before a magnetic substorm. Analysis of the ground-based observations yields electric field with dominating North-South component pointing towards the arcs and having maxima values in the range 20–35 V/km.
Source:

Journal of Atmospheric and Solar-Terrestrial Physics, 260, 106254
DOI:

https://doi.org/10.1016/j.jastp.2024.106254
ISSN:

1364-6826
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pdf
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Elsevier BV
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Journal Article
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https://creativecommons.org/licenses/by-nc/4.0/
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CC BY-NC
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urn:sha-512:4120b584d33c5491a9b70cc4cea7fac243992ae30ece27e434f7845a28a1684acdb8e9a5681314ce458db3b9a58057aff756d8f1985f85390d1cc2f7d90ee5b7
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Joule Heating rate at high-latitudes by Swarm and ground-based observations compared to MHD simulations

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