Oceanography Unit 3 ATMOSPHERIC CIRCULATION AND SURFACE OCEAN CURRENTS Worksheet Name Period If the earth did not rotate about its axis, the atmosphere might circulate as shown. Simplified sketch of the large scale features of the earth’s atmospheric circulation. Remembering that warm air can contain more water vapor than cold air, use the above figures to explain why satellite photographs of the earth often show the equatorial region to be cloudy. Again using the above figures, explain why many of the great deserts of the world are at (approximately) 30 degrees north or south of the equator. Unit 3 – Waves and Currents 1