In the Southern Hemisphere, fewer analyses have been completed, but they suggest a decrease in
extra-tropical cyclone activity since the 1970s.»
Wang, X. L., Y. Feng, G. P. Compo, V. R. Swail, F. W. Zwiers, R. J. Allan, and P. D. Sardeshmukh, 2012: Trends and low frequency variability of
extra-tropical cyclone activity in the ensemble of twentieth century reanalysis.
Not exact matches
These super-typhoons, as we've seen this November, can go on to become
extra-tropical cyclones which in turn can have extreme effects on planetary scale Rossby wave
activity and global weather patterns.