Nonlinear Interaction of Impulsive Acoustic/Hydrodynamic Sources and Natural Ocean Inhomogeneities

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0581
Agency Tracking Number: N09A-002-0008
Amount: $69,869.00
Phase: Phase I
Program: STTR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: N09-T002
Solicitation Number: 2009.A
Small Business Information
520 N. Washington Street, #200, Falls Church, VA, 22046
DUNS: 082347253
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 John Pierce
 Senior Scientist
 (703) 534-8000
 jpierce@cortana.com
Business Contact
 Marjorie Moore
Title: Director of Administration
Phone: (703) 534-8000
Email: mmoore@cortana.com
Research Institution
 PSU thru its Applied Research Lab
 Robert L Baker
 PO Box 30
State College, PA, 16804
 (814) 867-1552
 Nonprofit college or university
Abstract
The research will develop two physics-based models describing the generation of remotely detectable small-scale ocean surface roughness anomalies that can be produced by nonlinear interactions between impulsive acoustic/hydrodynamics sources and background ocean inhomogeneities. The first model is based on weak shock propagation, resulting from impulsive, finite amplitude acoustic disturbances at the source. The second model is based on the theory of non-steady, weakly nonlinear solitons, generated by a moving source in a non-homogeneous ocean. Both models are designed to predict the development and propagation of precursors that can alter the characteristics of the sea surface sufficiently to be detectable by remote sensors.

* Information listed above is at the time of submission. *

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