Fig. 1: Airflow Particle Image Velocimetry (PIV) over the Pacific Ocean from the Floating Instrument Platform FLIP.
From: Direct observations of airflow separation over ocean surface waves

A vertical array of PIV cameras captured the motions of the airflow just above the waves that traveled underneath the tip of FLIP's starboard boom (a). A high-power green laser sheet illuminated airflow seeding particles (fog) within the turbulent airflow over the air-sea interface (b).