Observations of surface wave-current interaction during swade

On 5 March 1991, during the Surface Wave Dynamics Experiment (SWADE), airborne expendable current profilers were deployed from the NASA P-3 aircraft to document the Gulf Stream and a warm core ring, while the GSFC Scanning Radar Altimeter measured the effect of these features on the directional wave spectrum. North propagating swell of about 10 s wave period appeared to have experienced a double reflection by the Gulf Stream, which turned it toward the east.