Αποτελέσματα Αναζήτησης
Period: the time it takes for two successive crests to pass a given point. Frequency: the number of waves passing a point in a given amount of time, usually expressed as waves per second. This is the inverse of the period. Speed: how fast the wave travels, or the distance traveled per unit of time.
Ocean Waves are disturbances in the surface of the ocean. They can be created by wind, gravity, or other displacements of water. Satellites typically measure significant wave height, which is the average wave height of the highest third of waves in a given sample period.
A number of other wave parameters - like Ta, the average period - are measured to describe natural sea states. Yet even taken together, the basic wave parameters give very limited information about wave characteristics and behavior.
To obtain a spectrum of a fully developed sea, they used measurements of waves made by accelerometers on British weather ships in the North Atlantic. First, they selected wave data for times when the wind had blown steadily for long times over large areas of the North Atlantic.
Small variations in amplitude (“short” pressure waves) produce weak or quiet sounds, while large variations (“tall” pressure waves) produce strong or loud sounds. The two examples below show sound waves that vary in frequency and amplitude.
19 Δεκ 2021 · We can broadly define ocean waves as all sea-surface variations on the timescale of seconds to months as generated in the oceans. MSL is the sea level you get if you average these fluctuations out. This definition of ocean waves includes wind waves, tides and tsunamis.
6 Σεπ 2019 · In the presence of strong winds, ocean surface waves dissipate significant amounts of energy by breaking. Here, breaking rates and wave-following turbulent dissipation rate measurements are compared with numerical WAVEWATCH III estimates of bulk energy dissipation rate.
