Fig. 6: Attribution of flood events in Sumatra.
From: Social-media and newspaper reports reveal large-scale meteorological drivers of floods on Sumatra
Data presented as scaled Venn diagram. Total area of the blue circle represents 63.1% of floods associated with above-average seasonal precipitation. Total area of the green circle represents 27.6% floods associated with favorable Madden Julian Oscillation (MJO) conditions MJO in phases 2–5). Total area of the red circle represents 95.8% floods associated with convectively coupled Kelvin wave (CCKW) activity (precipitation anomaly above 2.5 mm/day), while hatching indicates strong CCKWs (precipitation anomaly above 5 mm/day). Numbers indicate percentage of floods in respective categories. Numbers in boxes represent strong CCKWs. The magenta circle represents 1.4% of all floods, which were not attributed to either category considered. The diagram is based on Twitter database.
