LINKS CHAPTER 9 THE ATMOSPHERE'S PLANETARY CIRCULATION Books [~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~] Class Meetings Course 1. The subtropical anticyclones on average are centered Description near _______ degrees latitude. Course Schedule 0 Grading 30 Learning 60 Objectives 90 Photographs Practice 2. On the eastern flank of a semipermanent subtropical Questions anticy-clone, Special Notice the weather is often rainy. Student air subsides and is usually unstable. Responsibilities air ascends. the weather is generally dry. Access to Online Daily Weather 3. The world's major tropical deserts are located under Summary and the _______ flank of semipermanent subtropical Learning anticyclones. Activities western southern National Weather northern Service - Green eastern Bay 4. The horse latitudes are regions of relatively _______ Home sur-face winds near _______ degrees latitude. strong...30 weak...60 weak...30 strong...60 5. In the Northern Hemisphere viewed from above, surface winds blow _______ about the center of a subtropical anticyclone. clockwise and outward clockwise and inward counterclockwise and outward counterclockwise and inward 6. The midlatitude westerlies blow out of the _______ flank of subtropical anticyclones. poleward equatorward eastern western 7. . In the Northern Hemisphere, trade winds blow from the_______ most of the time. southeast west southwest northeast 8. Trade winds blow out of the _______ flank of subtropical anticyclones. equatorward poleward eastern western 9. The intertropical convergence zone (ITCZ) is a discontinuous belt of thunderstorms. shifts north and south with the seasons. marks the convergence of the trade winds of the Northern and Southern Hemispheres. All of the above are correct. 10. The Hadley Cell occurs in midlatitudes only. resembles a huge convection cell. is bounded to the north by the Icelandic low. develops only in the Northern Hemisphere. 11. In the Northern Hemisphere spring, the semipermanent sub-tropical anticyclones shift toward the north south. 12. Surface pressures exerted by subtropical anticyclones are higher in _______ than _______. summer...winter winter...summer 13. The most reliable singularity is the January thaw in New England. Indian summer in Ohio. the end of the rainy season in Los Angeles. the onset of winter weather in Chicago. 14. The westerlies are more vigorous in _______ than _______. winter...summer summer...winter 15. North-south exchange of air masses is maximum during a _______ flow pattern in the westerlies. zonal meridional split 16. A blocking circulation pattern may develop when the wester-lies become strongly zonal meridional 17. A jet stream occurs over the polar front. provides upper-air support for cyclones. meanders with the westerlies. All of the above are correct. 18. A cyclone forms to the _______ of a trough in the wester-lies. east west 19. Upwelling is the long-term averagel situation off the northwest coast of South America. brings cold, nutrient-rich bottom water to the ocean surface. is suppressed off the northwest coast of South America during El Niņo. All of the above are correct. 20. As air pressure rises over northern Australia, air pressure falls over the tropical central Pacific Ocean. This phenomenon is known as El Niņo. ITCZ. a singularity. the southern oscillation. Score = Correct answers: [~ ~ ~ ~ ~ ~ Back to Top ~ ~ ~ ~ ~ ~] Web Site created by David Dimmer Last Updated on December 11, 1998