Hourly measurements made by selected ship sensors on the R/V Seward Johnson during the 2002 "Islands in the Stream - Pharmaceutical Discovery, Vision, and Bioluminescence" expedition sponsored by the National Oceanic and Atmospheric Administration (NOAA) Office of Ocean Exploration, August 15 - 31, 2002. Measurements include ship's position and heading, air temperature, relative humidity, barometric pressure, wind speed and direction, depth, total solar irradiance, chlorophyll-a (fluorometer), sea surface temperature, and salinity. This data set was compiled from Virtual Instrument Data System (VIDS) ASCII files provided by the University of Miami Marine Technology Group at Harbor Branch Oceanographic Institution. Quality assurance included a check of distances between hourly positions, checks for missing hourly data, review of minimum and maximum values, verification of continuous pump operation, and deletion of negative values.