TUPS- A new look at underway sampling systems

Summary form only given, as follows. The analysis of ecosystem dynamics in an upwelling area requires continuously sampled data and high sampling rates. The state-ofthe-art is Rosette Samplers and multi-station grids. These at best provide a limited look at the vertical structure of the up-welling zone. The authors have designed and built a towed underway pumping system for the University of Washington, Department of Oceanography´s Coastal Upwelling Ecosystems Analysis Group. The system includes a Batfish Model 3000 with a Guildline Model 8103 STD/CTD, noncontaminating submerged pump and a unique faired towing cable. The system is designed to maneuver under command in the top 100 meters of water at speeds to 12 knots while delivering 10 gpm of seawater to the ship for analysis along with salinity, temperature and pressure analog signals from the Batfish.