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The Galicia HF experience, part 1: 24/7 SeaSonde Operations


Javier Garcia Parra 1
Chad W. Whelan2
1 Qualitas Remos
2 CODAR Ocean Sensors, Ltd., 1914 Plymouth Street, Mountain View, CA 94043, 408-773-8240 ext. 18, 408-773-0514 (Fax),,


Two long-range CODAR SeaSonde® HF radar stations were installed and operated for three months (Nov 2005 to Feb 2006) on the Galician Coast, the main area affected by Prestige disaster. The rough terrain and winding coastline around the rķas of the Galician Coast posed challenges to installing an HF RADAR system. With the compact SeaSonde® antenna design, two prime locations at functioning lighthouses were made feasible for installation in accordance with local lighthouse operations and historical conservation considerations. Important in the siting of both systems was the necessity for robust dual-site coverage over a moored wave and current monitoring buoy in the Puertos del Estado Deep Water network. Because wave statistics were important as well as currents, an enhanced blanking mode was employed to increase second order (wave data) robustness while mantaining the benefits of an FMICW transmission. Data from both SeaSonde® and buoy were available in real time via internet for observation and comparison by the operators (Qualitas Remos of Madrid) and Puertos del Estado scientists. This real time monitoring capability with redundant communication channels was not only important for continuous data access, but allowed the operators to achieve a 98% system uptime over the demonstration period

Local Contact: (Klaus-Werner Gurgel)