SIO Research Candidate Seminar - Matthew Dzieciuch


 
08/28/2017 - 11:00am

SCRIPPS INSTITUTION OF OCEANOGRAPHY EARTH SECTION RESEARCH CANDIDATE SEMINAR

DATE:          August 28th, Monday, 11am  


LOCATION:     Munk Conference Room
 
SPEAKER:      Matthew Dzieciuch, Ph.D.
            SIO
            
TITLE:          Acoustic tomography: the science of sound in the ocean

ABSTRACT:
 
Sound is a uniquely valuable tool in the ocean because it is one of the very few ways to remotely sense the large-scale interior properties of the sea. This talk will review the current capabilities of the instrumentation, some recent experiments and results, the tools used for analysis, and upcoming challenges. Enough low-frequency sound (250 Hz) can be generated reasonably efficiently to be received 600km distant on a water-column spanning array of hydrophones. Several thousand arrival patterns per year  are recorded and the travel-time of different ray-paths contains information about the intervening ocean. Extracting this information needs automated tools that can overcome the difficulties of tracking closely-spaced, scattered arrivals. Although these procedures work well for distinct ray paths, there are difficulties with arrival peaks that cannot be adequately described by a ray-path. A currently-deployed experiment in the Arctic illustrates this situation. 
 
 
Faculty Host:  Dave Chadwell  (cchadwell@ucsd.edu)
For more information on this event, contact: 
Leslie Costi
Event Calendar: 
Location: 
Munk Conference Room
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