The thrust anemometer is an instrument designed to measure the three components of wind-velocity fluctuations in the atmospheric boundary layer over the sea surface, as required for the calculation of Rey nolds stress of the wind on the sea….
Smith, Stuart D.. 1967. "Thrust-anemometer measurements of wind-velocity spectra and of Reynolds stress over a coastal inlet." Journal of Marine Research 25, (3). https://elischolar.library.yale.edu/journal_of_marine_research/1102