EUREC4A-OA_OCARINA : OCARINA Air-Sea Flux Data

As part of the EUREC4A-OA project (H. Bellenger, S. Speich, LMD), which is the French oceanographic component of the larger EUREC4A field experiments, the OCARINA wave-following platform was deployed from the host Reseach Vessel R/V Atalante from Genavir. OCARINA holds instruments that measure atmospheric turbulence and other environmental variables. The collected data are used to estimate the turbulent fluxes of momentum and heat at the air-sea interface. Specifically, the instruments on OCARINA measure air pressure, air temperature, humidity, the three components of the wind vector, the upward and downward solar and infrared radiation fluxes, and basic sea wave characteristics, such as the most significant wave height. Three methods are used to calculate the turbulent fluxes, namely the Eddy-Covariance (EC) method, the Inertial-Dissipation (ID) method, and the bulk method.