Fig. 2: Communities of synchronous extreme rainfall events in the Indo-Pacific ___domain and propagation characteristics.

The communities are determined using a probabilistic community detection algorithm and overlaps of 100 independent runs. a Six regions of synchronous extreme rainfall events (EREs). These are labeled according to their spatial mean position, i.e. equatorial Indian Ocean (EIO), Bay of Bengal (BoB), Maritime Continent (MC), South Asia (SA), Western Pacific (WP), and North India-China (NIC). Hatched areas indicate regions with too little precipitation, which are excluded from the analysis. b Temporal evolution of EREs using the most synchronous days within EIO, normalized by the number of grid points per community as day 0. c–f Lead-lag correlation analysis between pairs of the synchronous EREs belonging to the communities shown in (a). The time shifts of maximum correlation are denoted by vertical red lines and the respective days are displayed.