Fig. 4
From: Global ocean methane emissions dominated by shallow coastal waters
Regional and global diffusive CH4 emissions. a Violin plot for annual diffusive CH4 emissions integrated across four bathymetric regions, computed using Monte Carlo method to propagate uncertainty in ∆CH4 and gas transfer velocity. Violin thickness corresponds to probability density, with think black lines at 25th and 75th percentiles, thick line at median, and diamond at mean value. Light gray shading for each region spans the 10–90th percentiles for all estimates, combining artificial network (ANN) and random regression forest (RRF) ensembles. b Probability density functions for globally integrated CH4 emissions from ANN and RRF methods. Diamonds and light gray shading as defined in a
