Gallery Main Album » Plankton in internal waves I Jim and Amy deploying the 1200 kHz Workhorse ADCP Working in a crowded lab with three Thinkpads Ru Morrison, Jim and Jesús mounting the ADCP on the base of the AVPPO Phil and the VPR Scott Gallager's VPR Radar screen. The three parallel clouds of green points are the surface manifestation of a train of internal waves A surface slick. In this case, the surface manifestation of an internal wave Another surface slick A beautiful front in the atmosphere, 14 September 2001. A new reality is setting in.