Coastal Turbulence and Optics Characterization from an Autonomous Underwater Vehicle

Autor: P.L. Donaghay, R.G. Lueck, R.C. Hanson, T. Gagliardi, Edward R. Levine, D.N. Conners
Rok vydání: 1996
Předmět:
Zdroj: OCEANS 96 MTS/IEEE Conference Proceedings. The Coastal Ocean - Prospects for the 21st Century.
DOI: 10.1109/oceans.1996.568364
Popis: A combination of turbulence, optics, and hydrographic data acquisition from AUVs enables a new class of sampling strategies not available with older technologies, for near-synoptic horizontal mapping of a variety of coastal process studies. Horizontal profiles of turbulence are obtained using two piezo-ceramic shear probes sampling shear orthogonal to the vehicle's direction of motion, a single ultrafast thermistor, and three orthogonal accelerometers, all mounted on a sting. Horizontal profiles of optical absorption and attenuation are obtained with a WET Labs AC-9 instrument mounted in a wet well, with the proper flow rate provided by a pump. Field trials in the Narragansett Bay tidal estuary in January 1996 resulted in obtaining turbulence and optical data in the mid-water pycnocline, as well as in the ocean surface layer during wind row occurrences.
Databáze: OpenAIRE