How does light and sound travel in water Essay Example | Topics and Well Written Essays - 750 words - 1

How does light and sound travel in water - Essay ExampleUsually, temperature varies from about 28F around either North and South poles, or 90F or above near the Equator or around the Tropics.Salinity or saltiness of the sea water, differs roughly from 32 to 38 ppt. Its impact on sound waves or sound speed is often minor, but salinity place by the virtue of its locationfor instance, near the land or masses of sea icecan have remarkable impact.In constant coefficients, pitch in speed of sound by means of temperature changes adds by +3 meters per second while there is approximately +.5 meters per second per change in 30 meters in sea erudition and by change of per ppt. salinity, about +1.2 meters per second The SSP, or sound speed profile, is used to measure the combined effects of temperature, salinity and depth in relation to sound speeds. It is a vertical column of water consisting of an iso-speed layer (also called the mixed surface layer). Under it, there is a seasonal thermoc line which measures level to 250 meters and below, the larger main thermocline. Due to the changes of the waters temperature, there exist variations in the SSP. Under the main thermocline, the temperature is usually constant. Also, because of depth, changes in pressure slowly increase and therefore give the dominant impact on the SSP.Absorption occurs when the energy in the sound waves is absorbed by the water itself, as sound moves through a body of water. It is followed by the shrinking of the original sound waves magnitude (amplitude).Light also travels in water, as sounds do, since it goes in waves. Water absorbs light and its polar wavelengths at different values depending on the depth of the body of water, or the clarity or turbidity of the water. The speed of light depends on the optical immersion of the waterand light travels more slowly in water than it does in air.As water absorbs light, it reduces the lights quantity and