UTEC Geomarine have recently completed the deployment of a soliton detection and forecast system in the South China Sea.
Solitons are solitary wavefronts that travel underwater with little indication at the surface, and are sometimes associated with high, short-term current speeds that can cause disruption to subsea operations.
Working with Alphecca Systems, UTEC Geomarine developed a data buoy (DB-240, shown at right) that used the Iridium satellite network to transmit complete current profiles from a Teledyne RDI 150kHz QuarterMaster acoustic doppler current profiler (ADCP, photo below right), at 2-minute intervals, to an ARTEMeS server operated by Alphecca Systems.
On arrival at the server, the raw data were immediately decoded and analyzed to identify possible soliton events that were then used to trigger a mathematical model to forecast the soliton's likely path and estimated arrival time at key locations. The forecast results were made available to the end client via an interactive web display.
In addition to soliton detection, the ARTEMeS server also published values of current velocity and other parameters on a web page that could be viewed within a few seconds of transmission by the instrument.
A demonstration of the soliton displays may be viewed by logging on to a live ARTEMeS server at www.alphecca.co.uk
UTEC Geomarine Ltd. is based in Newcastle-upon-Tyne, England. Geomarine was acquired by Houston, Texas-based UTEC in late 2012.
Alphecca Systems, based in Wiltshire, England, designs and supplies software systems to measure environmental parameters, particularly the ARTEMeS real-time system.
Photo at right from Teledyne RDI of its Workhorse Quartermaster ADCP.
UTEC buys new metocean buoy, 16 April 2014
Metocean Measures, 19 February 2012
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