Long-term geospace climate monitoring

Climate change is characterized by global surface warming associated with the increase of greenhouse gas population since the start of the industrial era. Growing evidence shows that the upper atmosphere is experiencing appreciable cooling over the last several decades. The seminal modeling study by Roble and Dickinson (1989) suggested potential effects of increased greenhouse gases on the ionosphere and thermosphere cooling which appear consistent with some observations. However, several outstanding issues remain regarding the role of CO2, other important contributors, and impacts of the cooling trend in the ionosphere and thermosphere: for example, (1) what is the regional variability of the trends? (2) the very strong ionospheric cooling observed by multiple incoherent scatter radars that does not fit with the prevailing theory based on the argument of anthropogenic greenhouse gas increases, why? (3) what is the effect of secular changes in Earth's main magnetic field? Is it visible now in the ionospheric data and can it explain some of the regional variability in the observed ionospheric trends? (4) what is the impact of long-term cooling in the thermosphere on operational systems? (5) what are the appropriate strategic plans to ensure the long-term monitoring of the critical space climate?

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Author Zhang, S.
Cnossen, I.
Laštovička, J.
Elias, A. G.
Yue, X.
Jacobi, C.
Yue, J.
Wang, Wenbin
Qian, Liying
Goncharenko, L.
Publisher UCAR/NCAR - Library
Publication Date 2023-02-13T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2025-07-11T15:54:30.640350
Metadata Record Identifier edu.ucar.opensky::articles:26269
Metadata Language eng; USA
Suggested Citation Zhang, S., Cnossen, I., Laštovička, J., Elias, A. G., Yue, X., Jacobi, C., Yue, J., Wang, Wenbin, Qian, Liying, Goncharenko, L.. (2023). Long-term geospace climate monitoring. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7q81j1v. Accessed 16 August 2025.

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