NDLI: Model supported AUV freshwater distribution surveys in the upper layers of deep fjords

Content Provider	IEEE Xplore Digital Library
Author	Ludvigsen, M. Ellingsen, I. Odegaard, O.T. Sortland, B.
Copyright Year	2003
Description	Author affiliation: Dept. of Marine Technol., Norwegian Univ. of Sci. & Technol., Norway (Ludvigsen, M.)
Abstract	The Trondheim Fjord is characterized by a high degree of stratification, considerable density variations and freshwater fronts important to the vertical mixing of freshwater and nourishments, and thus significant to the fjord system. These conditions are modelled in a numerical model. Two AUV surveys were conducted in the Trondheim Fjord, Norway in June 2001 and April 2002 to complement and validate the numerical simulations. The Danish AUV Maridan 150 was used in the operations. Salinity, temperature, and current data were necessary to investigate the validity of the numerical models. A CTD unit and ADCPs pointing in both vertical directions formed the AUV payload. In the first survey the vehicle traversed the fjord to produce horizontal density and current profiles. Observations made during these runs placed focus on fresh water front structures, which were investigated more closely in the subsequent survey. The paper presents the survey setup and execution along with experiences made underway.
Sponsorship	Dept. of the Navy Sci. and Technol. Coalition for Enhanced Marine Resources Orincon Ceros Harbour Offshore Inc
Starting Page	1969
Ending Page	1975
File Size	542561
Page Count	7
File Format	PDF
ISBN	0933957300
DOI	10.1109/OCEANS.2003.178194
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Rivers Marine technology Numerical models Numerical simulation Springs Production Sea measurements Ocean temperature Payloads Vehicles
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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