Articles | Volume 14, issue 3
Atmos. Meas. Tech., 14, 2327–2343, 2021
https://doi.org/10.5194/amt-14-2327-2021
Atmos. Meas. Tech., 14, 2327–2343, 2021
https://doi.org/10.5194/amt-14-2327-2021

Research article 26 Mar 2021

Research article | 26 Mar 2021

Monitoring sudden stratospheric warmings using radio occultation: a new approach demonstrated based on the 2009 event

Ying Li et al.

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Short summary
We introduce a new method to detect and monitor sudden stratospheric warming (SSW) events using Global Navigation Satellite System (GNSS) radio occultation (RO) data at high northern latitudes and demonstrate it for the well-known Jan.–Feb. 2009 event. We found that RO data are capable of SSW monitoring. Based on our method, a SSW event can be detected and tracked, and the duration and the strength of the event can be recorded. The results are consistent with other research on the 2009 event.