Table 2 Seasonal mean correlations between (upper table) a posteriori CH4 emission anomalies over NE and SW tropical South America (Fig. 3) and tropical Pacific–Atlantic dipole (PAD) SST anomalies, and (lower table) a posteriori CH4 emission anomalies over tropical Africa (Fig. 3) and Indian Ocean dipole (IOD) SST anomalies.

From: Tropical methane emissions explain large fraction of recent changes in global atmospheric methane growth rate

 

Wet season

Dry season

 

n, r, p

n, r, p

 

\(\overline{DJFM}\)

\(\overline{JASO}\)

NE tropical S. America

10, −0.5, 0.2

10, −0.9, <0.001

SW tropical S. America

10, 0.8, 0.008

10, 0.9, 0.02

 

Long rains

Short rains

 

n, r, p

n, r, p

 

\(\overline{MAM}\)

\(\overline{OND}\)

East Africa

10, −0.3, 0.4

10, 0.7, 0.01

  1. Variables n, r, and p denote the number of data points, Pearson correlation coefficient, and the two-tailed P value.