Extended Data Fig. 4: Comparison of methane emission rate variations against meteorological variables.

Methane emission rate deviations from site-wise medians (computed excluding null detections) against deviations from site-wise medians (computed excluding null detections) for wind speed (a), 2 m air temperature (b), surface pressure (c), change in surface pressure over 1 h (d), accumulated precipitations over two weeks (e), and month of the year (corrected for hemisphere). All meteorological data are sampled from ERA5. Smoothed mean curves are shown (thick black lines) and are used to compute first-order sensitivity indices S_i, providing the dataset variance fraction explained by the considered meteorological variable. Smoothed mean curves ± local standard deviations are also shown (thin dashed lines). Overall, no meteorological variable significantly explains site-wise temporal emission variability in our dataset.