Gardner, G. B. Department of Environmental, Coastal and Ocean Sciences, University of Massachusetts Boston, bernie.gardner@umb.edu
Chen, R. B. Department of Environmental, Coastal and Ocean Sciences, University of Massachusetts Boston, bob.chen@umb.edu
Rudnick, S. M.. Department of Environmental, Coastal and Ocean Sciences, University of Massachusetts Boston, 7001srudn@umbsky.cc.umb.edu
Peter, E. Department of Environmental, Coastal and Ocean Sciences, University of Massachusetts Boston, edwards_p@umbsky.cc.umb.edu
Goodkind, T. University of Massachusetts Boston, goodkind@umbsky.cc.umb.edu

 
DEVELOPMENT OF AN UNDULATING, TOWED VEHICLE FOR THE STUDY OF COASTAL BIOGEOCHEMISTRY
 
An undulating, towed vehicle has been developed to study the three-dimensional distribution of dissolved organic matter in coastal waters. The vehicle is based on the Nu-Shuttle platform produced by Chelsea Instruments, Ltd, Surrey, UK. Design goals include in situ measurements of temperature, salinity, chromophoric dissolved organic matter (CDOM), petroleum hydrocarbons, chlorophyll, dissolved oxygen and suspended sediment in the upper 50 meters of the water column. In addition, a pump is incorporated into the vehicle to allow more detailed chemical analyses to be performed on shipboard. In situ data is acquired by a Sea-Bird Electronics SBE 9/11 CTD system with auxiliary sensors from Sea Tech (CDOM fluorometer), Sea Point (chlorophyll fluorometer and back-scatter suspended sediment sensor) and Chelsea Instruments (hydrocarbon fluorometer). The vehicle has been deployed in Boston Harbor, and in the Chesapeake and Delaware Bays. We have not yet been able to operate the pump due to interference with the CTD and Shuttle data and control signals, but the deployments have otherwise been successful. In situ measurements have, however, been supplemented shipboard analyses of continuously pumped near-surface water. We will describe the development of the vehicle and present data obtained during the Chesapeake/Delaware and Boston Harbor cruises.
 
Day: Wednesday, Feb. 3
Time: Poster
Location: Sweeney Center
 
Code: CS69WE0975S