Temperature and velocity data have been collected from surface moorings at 0°, 110°W for over 10 years as part of the National Oceanic and Atmospheric Administration's Equatorial Pacific Ocean Climate Studies (EPOCS) program. These are the longest continuous moored time series records in the world ocean. Contour plots of gridded temperature and zonal velocity from this data set for the decade of the 1980s are shown on the cover. Measurements were originally recorded at 15-min intervals and have been smoothed with a 51-day Hanning filter to approximately monthly averages for this presentation. White blanking indicates a data gap, except that velocity was not measured above 10 m at any time or below 200 m after late 1987. Positive (negative) zonal velocities indicated eastward (westward) flow.