Journal cover Journal topic
Annales Geophysicae An open-access journal of the European Geosciences Union
Ann. Geophys., 35, 295-309, 2017
https://doi.org/10.5194/angeo-35-295-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Regular paper
28 Feb 2017
Double-layer structure in polar mesospheric clouds observed from SOFIE/AIM
Haiyang Gao et al.

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Short summary
We find double-layer structure events with percentages of 10.32 and 7.25 % compared to total PMCs events, and the mean distances between two peaks are 3.06 and 2.73 km for the NH and SH respectively using SOFIE data from 2007 to 2014. By analysis of the background temperature and water vapour residual profiles, we conclude that the lower layer is a reproduced one formed at the bottom of the upper layer. These structures have close relationships with temperature enhancements and GWs.
We find double-layer structure events with percentages of 10.32 and 7.25 % compared to total...
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