Fig. 1: East Asian summer monsoon (EASM) response to tropical eruptions based on reconstructions.
From: Tropical volcanism enhanced the East Asian summer monsoon during the last millennium
a Superposed epoch analysis results of East Asian precipitation anomalies (shading) in the first boreal summer after 22 tropical eruptions from 1470 to 1999 AD. Stippling indicates precipitation anomalies not significant at the 90% confidence level. The red curve is the Yangtze River, and the red box indicates the EASM region (25°–34°N, 106°–122°E). b Composite EASM-averaged precipitation anomaly for 22 tropical eruptions. Confidence limits (90, 95, and 99%) are marked by horizontal lines. Red and blue colors mark the post-eruption and pre-eruption composites, respectively. Year 0 denotes the eruption year. This figure was created using MATLAB 2020a (http://www.mathworks.com).
