Variables for CSP experiments : date = year-month-day hour = decimal hour lat = latitude North ( - = South ) lon = longitude East ( - = West ) ws = true wind speed at 15 m height seaT = sea near-surface temperature ( 5.0 m depth ) airT = air temperature ( Vaisala at 19 m ) qa = air specific humidity ( Vaisala at 19 m ) swr = short-wave radiation down lwr = long-wave radiation down wdir = wind direction from North rain = precipitation rate qs = sea surface specific humidity (no cool skin correction) Hs = bulk sensible heat flux Hl = bulk latent heat flux (no Webb correction) tau = bulk surface stress u* = friction velocity T* = q* = zb/l = zo = roughness length from Charnoch relation DT_wrm = DT_col = zb = heigth of turbulence and bulk meteorological measurements