Apparatus for atmospheric surface layer measurements over waves

This paper describes an apparatus developed for simultaneously measuring wa ter elevation and static and dynamic pressure, momentum, and heat fluxes ab ove waves close to the interface. The apparatus was used successfully at th e Lake Ontario wave research tower of the Canada Centre for Inland Waters. The principle and purpose of the various sensors used, calibration procedur es, and data-gathering processes are described. Simultaneous measurements o f the atmospheric surface layer's physical quantities are presented. All th e quantities necessary to close the kinetic energy budget in the atmospheri c surface layer have been measured.