NDLI: Acoustic Seagliders in PhilSea10: Preliminary results

Content Provider	IEEE Xplore Digital Library
Author	Howe, B.M. Van Uffelen, L. Nosal, E.-M. Carter, G.S.
Copyright Year	2011
Description	Author affiliation: Department of Oceanography, University of Hawaii at Manoa, Honolulu, USA (Carter, G.S.) \|\| Department of Ocean and Resources Engineering, University of Hawaii at Manoa, Honolulu, USA (Howe, B.M.; Van Uffelen, L.; Nosal, E.-M.)
Abstract	In November 2010, four acoustic Seagliders were deployed in the Northern Philippine Sea in the vicinity of an acoustic tomography array as part of the PhilSea10 project with the goal of characterizing this oceanographically complex and highly dynamic region. The gliders were flown between the moored transceivers of the pentagonal tomography array with a radius of approximately 330 km until their recovery in April 2011. During this mission they collected oceanographic and acoustic data in the upper 1000 m of the water column. Temperature, salinity, and pressure data collected by the Seagliders provide a time-evolving characterization of the sound-speed environment in the variable upper ocean between the transceivers. The gliders were also equipped with an integrated Acoustic Recorder System (ARS). The ARS was scheduled to record transmissions from the moored acoustic tomography sources, measuring the arrival structure between the various moorings in order to near-continuously map the arrival pattern as a function of range and depth. Spectrograms show the arriving linear frequency modulated signals from the sources, as well as other ocean sounds. With travel times determined from this data, we will determine whether, given the joint nature of the combined positioning/tomography problem, it is possible to use Seagliders equipped with an acoustic receiver as mobile nodes in the tomography array, thereby enhancing the resolution of the tomography system.
Starting Page	1
Ending Page	8
File Size	1407166
Page Count	8
File Format	PDF
ISBN	9781457714276
e-ISBN	9780933957398
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Acoustics Tomography Receivers Ocean temperature Sea measurements Temperature measurement acoustical oceanography acoustic tomography ocean gliders mobile receivers
Content Type	Text
Resource Type	Article

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