Surf Zone (SZ) Mapping and Sensor System

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,912.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
N00014-04-M-0114
Award Id:
70192
Agency Tracking Number:
N041-141-0705
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
40201 Highway 190 East, Slidell, LA, 70461
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
788021749
Principal Investigator:
Marshall Earle
Vice President
(985) 649-7252
md.earle@neptunesci.com
Business Contact:
Marilyn Paquin
Chief Financial Officer
(985) 649-7252
mjp@neptunesci.com
Research Institution:
n/a
Abstract
The importance of Very Shallow Water (VSW) and the Surf Zone (SZ), VSW/SZ, for littoral operations is well known. Both ocean dynamic conditions and bathymetry may vary significantly in space and time. The harsh SZ environment (mainly due to currents, waves, and surf) makes data collection using in-situ sensors or Autonomous Underwater Vehicles (AUVs) difficult especially for a mobile sensor system to be used where needed. An innovative bottom drifting sensor system is proposed to measure oceanographic variables, including bathymetry, in 3-D space and time in the SZ and extending into the VSW region. A drifter would be relatively invulnerable to breaking waves and would utilize near bottom currents to provide drifter locomotion without using its own power. While bottom drifters would be miniaturized, they could be large enough to accommodate several sensors to measure bathymetry, waves, surf, and other data. Several deployed drifters would constitute a mobile SZ measurement and mapping system. Techniques will be investigated and developed to track drifters recognizing SZ acoustic limitations. Because of SZ currents (e.g. undertow and rip currents), drifters will generally be transported outside of the SZ where, particularly for scientific experiments, they could return to the surface for reuse.

* information listed above is at the time of submission.

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