Fig. 2: Data on CH₃Br in the air and water of the East Pacific Ocean. Dry mole fraction of atmospheric CH₃Br, (B) its partial pressure in the surface water, and (C) the saturation anomaly (shaded area) and net saturation anomaly (line and markers). Solid lines are LOESS fits (23); the vertical, dashed lines and labels indicate the oceanic regions as follows: region 1, open ocean (winter); region 2, coastal waters (winter); region 3, divergence between North Equatorial Current (NEC) and North Equatorial Counter Current (NECC); region 4, equatorial divergence (upwelling); region 5, open ocean (summer); region 6, coastal and nearshore waters (summer); and region 7, inland passage