Ch. 16 Terms

Ch. 16 Terms - NR 130 Key Terms (49) Chapter 16: Oceans and...

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NR 130 Key Terms (49) Chapter 16: Oceans and Coastlines Salinity: the saltiness of seawater Thermocline: a layer of ocean water between 0.5 and 2 kilometers deep where the temperature drops rapidly with depth Tide: the cyclic rise and fall of ocean water caused by the gravitational force of the Moon and, to a lesser extent, of the Sun Spring tide: a relatively large tide that forms when the Sun, Moon, and Earth are aligned Neap tide: a relatively small tide that forms when the Moon is 90 degrees out of alignment with the Sun and Earth Crest: the highest point of a wave Trough: the lowest part of a wave Wavelength: the distance between successive wave crests (or troughs) Wave height: the vertical distance from the crest to the trough of a wave Storm surge: an abnormally high coastal water level created by a combination of strong onshore winds and the low atmospheric pressure of a storm Current: a continuous flow of water in a concerted direction Surface current: horizontal flow of water in the upper 400 maters of the oceans Deep-sea current: vertical and horizontal water flow below a depth of 400 meters in the oceans Gulf stream: one of many oceanic surface currents. It is 80 kilometers wide and 650 meters deep near the east coast of Florida and moves northward at approximately 5 kilometers per hour. Farther to the northeast the current widens and slows; east of New York it is more than 500 kilometers wide and travels at less than 8 kilometers per day
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Ch. 16 Terms - NR 130 Key Terms (49) Chapter 16: Oceans and...

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