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Unformatted text preview: itude storms, polar front The General Circulation and Precipitation Patterns Most of the world's thunderstorms are found along the ITCZ. Low rainfall over the subtropical regions jet streams subtropical jet stream polar front jet stream
Low-level jet stream over the Central plains of the U.S. (within 2 km above surface), bringing moist and warm air to form nighttime thunderstorms Westerly Winds and the Jet Stream Global wind-driven ocean current Fig. 7-29, p. 193 Winds and Upwelling Upwelling is strongest when wind is parallel to the coastline El Nio events Southern Oscillation La Nia teleconnections El Nio and the Southern Oscillation ENSO is an example of a global-scale weather phenomenon. Often Arizona has a wetter winter during El Nino and a drier winter during La Nina; Usually northwestern U.S. has a drier winter during El Nino and a wetter winter during La Nina. Fig. 7-32, p. 196 North Atlantic Oscillation Arctic Oscillation: pressure difference between Arctic and regions to its south Other AtmosphereOcean Interactions Pacific Decadal Oscillation Fig. 7-36, p. 199...
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- Fall '07