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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Extraordinary quasi-16-day wave activity from October 2013 to January 2014 with radar observations at mid-latitudes and MERRA2 reanalysis data

Fig. 2

Wavelet spectra of a, c zonal and b, d meridional winds at 88 km over a, b Beijing and c, d Wuhan from 1 October 2010 to 30 September 2017. The black solid and dashed vertical lines denote the major and minor SSW events, respectively, and the black dotted vertical lines denote the SFW events. The gray shade at Wuhan indicates the missing observations

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