Table 5. Measured CH₃OH over oceans and model biases.

Campaign	Area	Obs.	A	A_NO	B	C	C_NO
PEM-Tropics-B	Pacific	934	0.44	0.30	0.54	0.87	0.74
PEM-West-B	N.-W. Pacific	702	0.83	0.71	0.99	1.35	1.26
INTEX-A	N. Atlantic	1,689	0.76	0.73	0.83	0.97	0.93
ITCT	N. Atlantic	991	0.98	0.95	0.96	1.15	1.12
INTEX-B	Pacific	1,012	0.60	0.53	0.67	0.80	0.73
Mauna Loa	N. Pacific	900	0.50	0.23	0.63	0.89	0.64
Cape Verde	N. Atlantic	768	0.38	0.18	0.73	1.06	0.68
AMT-22	Atlantic	420	1.12	0.52	1.33	1.96	1.35
INDOEX-1999	S. Indian	708	0.79	0.43	0.94	1.56	1.19
Mean model bias factor*			0.73	0.45	0.82	1.12	0.92
Mean discrepancy factor†			1.47	2.25	1.31	1.26	1.31

^*Defined as , with M_i/O_i the ratio of the averaged modelled values to the averaged observed values for campaign i.

^†Defined as ,that is, it is the geometrically averaged ratio of the higher to the lower among the model and observed averages.

Averaged observed mixing ratios (pptv) and ratios of averaged modelled to averaged observed values for model runs defined in Table 4. See Supplementary Fig. 14 for more information on the measurements.