Articles | Volume 38, issue 2
Ann. Geophys., 38, 421–435, 2020
https://doi.org/10.5194/angeo-38-421-2020
Ann. Geophys., 38, 421–435, 2020
https://doi.org/10.5194/angeo-38-421-2020

Regular paper 31 Mar 2020

Regular paper | 31 Mar 2020

Migrating and non-migrating tides observed in the stratosphere from FORMOSAT-3/COSMIC temperature retrievals

Uma Das et al.

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Short summary
Temperatures obtained from FORMOSAT-3 and COSMIC observations in the stratosphere are analysed for tidal variations. It is seen that non-migrating tides are not very significant in the high-latitude winter stratosphere. It is shown that the observed amplitudes of these tides in earlier studies are most probably a result of aliasing and are not geophysical in nature. Thus, the process of non-linear interactions through which it was believed that they are produced seems to be unimportant.