Yearday 2008 = 1.5 on January 1 at noon (UTC)
Latitude from ship log (South is negative)
Longitude from ship log (West is negative)
Wind speed 10 m above surface from sonics
Wind speed 10 m above surface adjusted to neutral conditions
Wind Direction from (meteorological convention)
Sea Surface Temperature from sea snake
Air Temperature 10 m above surface from Vaisala PTU
Relative Humidity 10 m above surface from Vaisala PTU
Atmospheric Pressure from Vaisala PTU
Upwelling Solar Radiation using Payne (1972) albedo formulation