Graphical Abstract

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Cao, X., and R. Wu, 2018: Comparison of different time scale contributions to tropical cyclone genesis over the western North Pacific in 2015 and 2016. J. Meteor. Soc. Japan, 96, 317-336.
Special Edition on Tropical Cyclones in 2015–2016
https://doi.org/10.2151/jmsj.2018-038  Graphical Abstract with highlights

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Highlights:

• A local instantaneous view of conditions for the TC genesis is adopted in the present study, which is distinct from previous studies of large-scale temporal averaged conditions.
• The positive contribution of lower-level vorticity and mid-level specific humidity is larger in 2015 than in 2016 on all the three time scales; the contribution of the barotropic energy conversion in relation to the meridional shear of interannual variations of zonal wind and the zonal convergence of intraseasonal variations of zonal wind are larger in 2015 than in 2016.
• The vertical wind shear on all the three time scales and sea surface temperature on the interannual time scale have a larger positive contribution to the TC genesis in 2016 than in 2015.