Mariyah McDannell - ocean-currents-Worksheet explorers.pdf - Name Date In-Depth Resources Unit 1 Chapter 1 Section 5 Early European Explorers Geography

Mariyah McDannell - ocean-currents-Worksheet explorers.pdf...

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T here are “rivers” in the ocean as well as rivers that cross the continent. Ocean rivers are called currents and are known by names such as North Equatorial and Gulf Stream. Surface ocean currents are pushed along by a pattern of winds. The pattern is established by the rotation of the earth and the large land masses. As a result, the currents move counterclockwise south of the equator and clockwise north of it. These currents are most circular in the wide-open waters of the Atlantic and Pacific oceans. Often, branch currents occur near shorelines. This movement creates a global distribution of heat energy. Warm equator water moves north and south toward the poles. Colder Arctic and Antarctic waters then move toward the equator and are heated to repeat the cycle. Occasional cycle interruptions called El Niño and La Niña cause worldwide weather disasters. El Niño is a warm current off the normally cold waters west of South America. It is created by shifts in wind direction. During a winter season,

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