John Kessler, chief scientist on National Oceanic and Atmospheric Administration's ship Pisces, working as part of the Unified Area Command Subsurface Monitoring Unit.
The NOAA Ship Pisces, a 209-foot research vessel wraps up a 10-day mission in the northern Gulf of Mexico on Friday Sept 17, as part of the federal unified command response to the Deepwater Horizon oil spill. Carrying a NOAA crew of 24, and a scientific complement of nine scientists from Texas A&M University and the University of California at Santa Barbara. Photo courtesy of NOAA.