Carbon monoxide concentrations in surface waters of the east tropical pacific in 1974: comparison with earlier values

Concentrations of carbon monoxide were measured in the surface waters of the east tropical Pacific during a cruise aboard USNS “Hayes” from Ecuador to Panama via Hawaii and Tahiti in the late winter and early spring of 1974. Data comparisons were made for time spans of 1.3–3.7 years at several locations where the cruise track intersected or closely paralleled portions of our two earlier Pacific cruise tracks. The comparisons showed remarkable consistency, considering the range of variability of carbon monoxide concentration. Latitudinal variations of concentrations found during the earlier cruises were reconfirmed.