Hydrographic Surveys

FAST Eddysm

When required, the FAST Eddy container is welded on the back deck of the client’s vessel, the current meter deployment arm is welded to the side of the vessel, and ship’s power is wired into the van. The process requires a crane and a couple of welders for approximately eight hours dockside. Once the gear is mounted, the instrumentation is calibrated and the operation of the satellite communications is verified. The system works unattended until it is removed from the vessel. This allows the vessel personnel to radio real-time current speed and direction information directly to offshore operators. Simultaneously, the data is sent in its entirety via satellite communications to Horizon Marine’s offices where profiles are graphed and complete cross sections are prepared.

The FAST Eddy solution has the potential of providing the highest density of useful data when and where it is needed most. And…we go to the current – we don’t wait for it to come to us.

“…the entire Project Team greatly appreciate the effort and support Horizon Marine provided for the Independence Trail SCR installation and look forward to working with your group again. “

TowFish

Horizon Marine and Oceaneering International Inc. (OII) teamed up to provide quick reaction, high quality ocean current surveys in the Gulf of Mexico. OII has an impressive fleet of seagoing vessels and a 75 kHz Acoustic Doppler Current Profiler (ADCP) mounted in a towfish which provides a stable platform towed at 8 knots. Horizon provides the data analysis and oceanographic interpretation.

Rapid mobilization enables the team to quickly steam to the significant event, such as the Loop Current or eddy, characterize its currents down to 600 meters, and monitor its advance and retreat over offshore operations. The companies chose to work with each other based on the excellent reputation each enjoys and the complimentary blend of technologies each has developed.

 
“…experiencing peak currents of 3 to 3.5 kts at the surface… currently using a Harvey tug and AHV to maintain position and continue working.”

 
“…STBY on current - 2.8 kts. Problems: Strong current. Eddy current expected to continue producing 2+ knot currents at GC-254 through August…as per Horizon Marine forecasts...”