To provide precise information of ocean weather where we need it, the ability to deploy ocean sensor systems from the air is critical.

To provide a direct validation of the Spotter motion sensing capabilities, we purpose-built a motion-controlled teststand that enables detailed simulation of realistic ocean surface motions.

To compare the Spotter data with traditional scientific instrumentation, we deploy a Spotter alongside a Datawell Waverider near Mavericks, the California big-wave surf spot. Detailed comparison of spectra and directional moments confirms outstanding Spotter data quality.