Distributed System for Remote Wave Data Collection and Visualization as a Part of Operational Oceanography in Croatia

Goran Strinić (HHI); Srđan Čupić (HHI); Nenad Domijan (HHI); Nenad Leder (HHI); Hrvoje Mihanović (HHI);

Godina: 2011

Link: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5967069

Mipro 2011 - GVS, Proceedings; Petar Biljanović, Karolj Skala - 2011 (znanstveni rad, međunarodna recenzija, predavanje); str. 335-338 ISSN 1847-3938 ISBN 978-953-233-060-1

Hydrographic Institute of the Republic of Croatia (HHI) has modernized its oceanographic equipment by obtaining DATAWELL DWR MKIII waverider, 0.7 m in diameter, with possibilities of measuring the wave height, direction and period. Waverider is placed in the survey area by laying it into the sea and anchoring it to the sea bottom. An anchored waverider has a certain freedom of motion. Because of the risk of loosing the equipment, the HHI has developed the SMS system of alarm and graphic representation of the buoy motion in Google Earth™ application, which facilitates the buoy tracking and searching for a potentially lost buoy. The paper also describes communication technologies and methods of remote data collection and production of safety copies. Sensor of the wind speed and direction is usually installed when conducting wave measurements. By simultaneous collection of the waverider data and the wind direction and speed data, the correlation equations between parameters can be established for each location. The measured and analysed waverider data are essential input parameters for numerical models, also being important for designing coastal and marine structures, as well as for the safety of navigation at sea.