Course information

Introduction to the basic principles and concepts of Marine Geodesy. Νavigation systems in the Water environment. Conventional and Radiometric methods of positioning. Marine tracking and navigation techniques using conventional methods. Circular, excessive systems, Radar systems. Satellite and inertial positioning methods in the water environment. Error sources and detection quality measures in the water environment. Nautical chart and navigational systems. Integrated GNSS/INS positioning systems. Basic principles in bathymetric determination of points. Physics and propagation of sound in water. Parameters affecting the audio signal. Sonographic methods and sources of error. Single and multiple beam ultrasound systems. Other types of sounding and sounding systems. Basic parts of a classic audio device. Audio signal modulation. Echogram production process. Effect of relief and other parameters on echogram construction. Echogram interpretation. Depth measurement errors. Seabed classification and identification of quality characteristics. Overview of marine tides. Instruments for measuring tides (tide gauges). International and national tide gauge networks. Tidal data, harmonic analysis of tide gauges. Tidal curve and main tidal levels. Mean Sea Level (MSL) and determination of sea level reduction. Use of few-day tidal measurements and reductions. Applications of tidal levels. Correlation with the altimetry network and interface with ground reference systems. Satellite altimetry. Basic concepts and principle of operation / broadcast frequencies. Satellite missions. Reference surfaces. Determination of Marine Geoid. Relationships between different reference surfaces. Marine geoid applications in the geosciences. Coastal surveys and combination of alternative techniques (aerial systems, Lidar systems, Multispectral, etc.). Integrated hydrographic footprinting systems and autonomous marine footprinting vehicles. Underwater vehicles. Underwater tracking. Construction of coastal / port works and marine facilities. Subsea pipelines. Applications of marine geodesy of hydrographic impressions (shipping-navigation, research / extraction of natural resources, marine archaeology, environmental studies).