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The Delayed Ionospheric Response to the 27-day Solar Rotation Period Analyzed With GOLD and IGS TEC Data

Schmölter, Erik and Berdermann, Jens and Codrescu, Mihail (2021) The Delayed Ionospheric Response to the 27-day Solar Rotation Period Analyzed With GOLD and IGS TEC Data. Journal of Geophysical Research: Space Physics (126), e2020JA028861. Wiley. doi: 10.1029/2020JA028861. ISSN 2169-9380.

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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JA028861


The delayed ionospheric response is analyzed for two well-defined 27-day solar rotation periods in the year 2019 with solar radio flux index F10.7 and Global-scale Observations of the Limb and Disk (GOLD) data, like solar extreme ultraviolet (EUV) flux proxy, O/N2 column density ratio and peak electron density, as well as International Global Navigation Satellite System Service rapid high-rate total electron content (TEC) map data. Although the correlation between GOLD solar EUV flux proxy and TEC is similar to the correlation between F10.7 and TEC, it is shown that the estimated delays based on GOLD data are in much better agreement with recent studies using EUV measurements compared to the delays based on F10.7 data. The GOLD peak electron density correlates well with TEC and allows insight to a local time interval when the ionosphere is not controlled by solar activity changes (17:00 LT to 21:00 LT). The present study investigates the impact of the solar activity (F10.7, GOLD EUV flux proxy) and O/N2 column density ratio on the ionospheric delay for two representative solar rotation periods. The capabilities of GOLD data for future research on the ionospheric response to the 27-day solar rotation period are demonstrated and discussed. These results are crucial information for precise ionospheric models and forecasts.

Item URL in elib:https://elib.dlr.de/140847/
Document Type:Article
Title:The Delayed Ionospheric Response to the 27-day Solar Rotation Period Analyzed With GOLD and IGS TEC Data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schmölter, ErikUNSPECIFIEDhttps://orcid.org/0000-0002-9284-6489
Berdermann, JensUNSPECIFIEDhttps://orcid.org/0000-0002-3308-4584
Codrescu, MihailSWPC, NOAA, Boulderhttps://orcid.org/0000-0001-7216-9858
Date:7 February 2021
Journal or Publication Title:Journal of Geophysical Research: Space Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:e2020JA028861
Keywords:Ionosphere, Solar Proxies, Time Delay, Total Electron Content
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics > Space Weather Impact
Deposited By: Schmölter, Erik
Deposited On:24 Feb 2021 23:03
Last Modified:28 Feb 2023 14:45

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