MM Sensors – Philip Knight
Based on the deployment of pressure gauges to monitor the rise and fall of the tide, the key research challenge here is to effectively complement radar-based technologies for monitoring coastal change in the intertidal zone and below the water line. The research will examine the effectiveness of ground-truthing waterline reconstructions that are free from the confounding influence of wave breaking and run-up, which is a particular problem on shallow-sloping beaches. This has significant environmental benefits in terms of carbon emissions and energy use. In relation to improved efficiency of port navigation from the accurate provision of data on safe tidal levels for access, each 10-15 cm of inaccuracy in water depth, converts to approximately 20 minutes delay in either port entry or exit. Over the year, this would covert to about 10 extra days of diesel use for every vessel affected. At a fuel consumption of 50-125 tons of fuel per day for vessels at ‘extra slow steaming’ (ranging between 4,000 and 10,000+ TEU), development and implementation of the integrated radar-tide gauge survey would save 500-1250 tonnes of fuel per ship per year.