ODAS stands for "Ocean Data Acquisition System". This is a type of buoy that obtains scientific data on sea conditions at the buoy location automatically. Typical examples are yellow, with instrumentation and solar power panels installed that will automatically sample local sea conditions such as water temperature, air pressure and temperature, wind speed and direction, average wave height and period.
Weather buoy was created in 1951.
First off, it's important to be clear about the fact that tsunamis themselves can not generally be mitigated or reduced in intensity. Ocean Data Aquisition System (ODAS) buoys comprise part of a tsunami early warning system. The earlier the tsunamis are detected, the earlier that the population and infrastructure on threatened coastlines can be warned, hopefully lessening damage and loss of life. Tsunamis are formed as the result of seismic events which transfer energy to the surrounding sea. Thus, the earliest means of detecting them is through seismic (i.e. earthquake) measurement. A particular seismic event is a good predictor of an associated tsunami, depending on its intensity and the location of its epicenter. ODAS buoys supplement this by measuring characteristics of the sea waves which are generated. An ODAS buoy can measure the wave height (3d position at any given time), and also the period between consecutive waves. This provides a good indication of both the destructive potential of a particular wave train, and its propagation time (i.e. how long the waves will take to reach land). This information is invaluable if it can provide advance notice to a threatened area. Other ODAS capabilities may include acoustic measurement (direct observation of seismic activity), sea salinity, temperature, wind direction and velocity, current speed and direction, etc., for weather monitoring and prediction. At sea, a seismic event which generates a tsunami may not even be noticeable from a seaborne observer, since the resultant wavelength is generally very long. Imagine floating in a small boat while a 20 meter high wave passes beneath you - if the wavelength is short, such a wave would obviously be devastating. If, however, a wave this high took a full minute to pass beneath you, your change in elevation would occur so slowly that it may not even be noticed. Long wavelength, high energy waves like this are typical of tsunamis. Thus, the ODAS buoys provide a means of detecting and describing them well out at sea - hopefully in sufficient time to prepare for their landfall.
That is the center of the coordinate system, which uses latitude and longitude.
There are various ways tsunamis are detected: 1. there are various geological stations which monitor seismic activity, so when an earthquake is detected (tsunamis can be created by a rupture in a fault line) the tsunami can be detected. 2. Buoy-Bottom Pressure Recorder System this detects changes in water pressure (when a large volume of water passes over the buoy because of the great weight of the column the pressure increases. 3. Satellite Detection System They can measure changes in ocean height.
First, on nautical charts, find the chart datum depth. Then find out what the highest astronomical tide height is, add allowance for maximum wave height, thus having the scope (length of chain). From the local tide tables, find out what height low and high tides are (changes daily) thus having tide amplitude. Use hypotenuse formula to find radius of drift.
Odas Moon was born in 1892.
Odas Moon died on 1937-11-19.
buoy
Omar Sandoval has written: 'Odas sepulcrales'
White buoy with blue
odas An Oda was a court where the harem or concubines wiated for the Sultan
Buoy can be a verb. Her presence would always buoy my spirits.
The correct spelling is "buoy"
white buoy with a horizontal blue stripe
mooring buoy
what is submarine cable buoy light and shape & what is submarine emergency buoy light and shape
White buoy with horizontal blue stripe is designated as a mooring buoy. White buoy with horizontal blue stripe-----------------------------------------------------------------------------------------The INTERNATIONAL mooring buoy is a white buoy with and orange stripe around its top portion (an orange top)