UNDERWATER AGC CAPABILITY

Presentation discussing SVGs background, principle of AGC, SVG’s capabilities and thoughts on project planning.

Presentation discussing SeaView Geophysical’s background, principle of Advanced Geophysical Classification (AGC) for the detection of Unexploaded Ordnance (UXO). It discusses SVGs different capabilities for the deployment of the Marine UltraTEM IV AGC classifier and some thoughts on Underwater AGC project planning.

Active towed array carrying the GapEOD Marine UltraTEM IV Advanced Geophysical Classification system

Close-up of a subsea electrical or communication system with multiple cables connected to circular ports on two panels, situated on a floating platform or barge with a body of water in the background.

A man in safety gear, including a white hard hat and safety glasses, is working on a structural framework outdoors near a body of water, using a tool to secure or repair part of the metal structure.

Utilizing GapEOD Marine UltraTEM IV for Advanced Geophysical Classification

News

SVG COMPLETES 95 ACRE MARINE ADVANCED GEOPHYSICAL CLASSIFICATION SURVEY, TAKING TOTAL AREA SURVEYED TO DATE TO OVER 300 ACRES.

October 2025: SeaView Geophysical, Inc., a Michigan small business specializing in performing Marine Advanced Geophysical Classification (AGC) surveys for unexploded ordnance (UXO), recently completed a 95-acre survey along the estuarine shoreline of North Carolina, operating in water depths ranging from 6” to 7ft. This project was the third performed by SeaView Geophysical taking their total area surveyed to over 300 acres.

S/V GeoSearch towing Active Towed Array and Marine UltraTEM in shallow water.

SeaView Geophysical Airboat shunting Advanced Geophysical Array carrying the GapEOD Marine UltraTEM IV Advanced Geophysical Classification system

News

SVG AWARDED SUB-CONTRACT UNDER BLACK TUSK GEOPHYSICS TO DEMONSTRATE DEPLOYMENT METHODS FOR MARINE ULTRA-TEM lV: SeaView Geophysical, Inc., a Michigan based small business, has been awarded a sub-contract to Brisbane, Australia based GapEOD. Over the course of three years, SVG will support Black Tusk Geophysics in demonstrating the use of the Marine UltraTEM in various marine environments. SVG’s tasks will include demonstrating the deployment of the Marine UltraTEM Advanced Geophysical Classification system in the Littoral Zone, using SVG’s SurfROVer crawler as a tow vehicle. We will then demonstrate the deployment of the Marine UltraTEM in deep-water from a vessel operating in an active seaway using SVG’s Dynamic Towed Array system using an active heave compensated winch deployed from SVG’s purpose-build survey vessel, GeoSearch.

SeaView Geophysical SurfROVer autonomous robotic vehicle with tank tracks on a sandy beach near the ocean, with a pier extending into the water in the background.

News

Active Heave Compensated Winch with 1200m of hybrid optical fiber/electrical umbilical cable.

SVG PERFORMS SEATRIALS ON ACTIVE HEAVE COMPENSATED WINCH AS PART OF ESTCP DEMONSTRATION.

Alpena, MI: In August 2025 SeaView Geophysical, on sub-contract to Black Tusk Geophysics, completed successful inshore trials of an active heave-compensated winch developed by SVG for the deployment of their Active Towed Array used to deploy the GapEOD Marine UltraTEM IV Advanced Geophysical Classifier. The seatrials were the first phase of a multi-phase effort to demonstrate the system's ability to tow SVGs Active Towed Array at depths of greater than 50m at a close altitude from the seabed of 0.5m, even in an ocean swell of 2m significant. Initial trials demonstrated the system’s basic functionality. The next trial phase will be to mobilize the winch onto a vessel of opportunity along with the Active Towed Array and deploy the system in ocean swells.

SPECIFICATIONS:

Dimensions: 1.5m W x 1.15m D x 1.8m H

Weight: 1000kgs

Umbilical: 1200m hybrid fiber-optic and power.

Design sea-state: 2m sig

Modes: Active Heave Compensation. Follow Seabed Active Heave Compensation.

Heave compensated winch undergoing intitial trials in inshore waters.