“…A cooling signature of upper‐level clouds has been found to propagate radially outward over the course of the day from the inner core in the morning to the outermost TC region by the afternoon/evening (Ditchek, Molinari, et al., 2019; Dunion et al., 2014, 2019; Kossin, 2002; Lajoie & Butterworth, 1984). This prominent TC diurnal feature of cold clouds was called diurnal pulse (Ditchek, Corbosiero, et al., 2019; Ditchek, Molinari, et al., 2019; Ditchek et al., 2020; Dunion et al., 2014; Zhang & Xu, 2021b), which might be triggered by gravity waves induced by inner‐core deep convection (Dunion et al., 2014; Navarro & Hakim, 2016; O'Neill et al., 2017). The diurnal pulse of cold clouds (thereafter cold‐cloud pulse) may in turn impose impacts on the TC structure.…”