![]() ![]() Most MOTUS sensors are combined with Current and water quality measurements and operated in Real-time from our standard MOTUS Buoy. The MOTUS sensors features innovative electronic and mechanical filters that enables accurate wave measurements from surface platforms of any size and shape. Motion based waves with the Aanderaa MOTUS stand-alone directional wave sensor is designed to accurately measure waves from surface located platforms. Because waves are variable in their character a minimum calculation period of 15 minutes is recommend to assess the prevailing conditions.Īt Aanderaa we have focused on three different systems for spot measurements of ocean waves including: To obtain reliable information on wave dynamics requires instruments that are installed and measure continuously over longer time periods. Waves vary on time scales of seconds to minutes to hours. currents, wind, temperature, salinity, particles, oxygen, algae etc. In addition spot measurements with instruments and/or buoys are normally well suited to measure other relevant parameters as well e.g. Microwave and radar give an overview but cannot provide the same level of detailed information as the spot measurements do. What instruments are used to measure ocean waves? There is a range of technologies to measure ocean waves including microwave from space, various types of radars and spot measurements from below or at the surface. Because ocean waves can travel far and can contain high energy it is important to measure ocean waves to understand their impact on shipping fishing, tourism, constructions, shorelines, water mixing, sediment resuspension, gas exchange etc. A rare case of extremely long period of ocean waves are tsunamis from e.g. Curious and unsuspecting people on the beach may run out to see exposed offshore sea life only to be overwhelmed when the breaking crest hits.Measure waves, wave measurements, measure ocean waves, ocean waves, waves, MOTUS, ocean waves, types of ocean waves, wave measurements measure waves, wave measurements, measure ocean waves, ocean waves, waves, MOTUS, ocean waves, types of ocean waves, wave measurements Ocean Waves Surface waves are formed by winds either locally as "wind waves" with shorter periods, or further away as “swell" with longer periods. Tsunamis deliver a catastrophic blow to observers at the beach as the water in the trough in front of it is drawn back toward the tsunami wave, exposing the seafloor. This is called the tsunami runup, which destroys structures far inland. The massive wave may sweep inland well beyond the beach. Wave height builds up and the wave strikes the shore as a wall of water a hundred or more feet high. But as the wave train approaches the shore, each wave makes contact with the shallow seafloor, friction increases, and the wave slows down. Tsunamis may pass unnoticed in the open ocean because the wavelength is very long and the wave height is very low. The water is suddenly lifted and a wave train spreads out in all directions from the mound carrying enormous energy and traveling very fast (hundreds of miles per hour). Such waves are called tsunamis and, in the case of earthquakes, are created when a portion of the seafloor is suddenly elevated by movement in the crustal rocks below that are involved in the earthquake. This causes the wave to increase in height.Ī special type of wave is generated by any energetic event affecting the seafloor, such as earthquakes, submarine landslides, and volcanic eruptions. \): All waves, like tsunamis, slow down as they reach shallow water. ![]()
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