GGR100H1 Lecture 8: atm pattern of motion.docx
Document Summary
Primary high an low pressure areas: global barometric pressure, low pressure systems move farther from the equator in the. These form polar high pressure cells and the equatorial troughs: dynamic factors-the sinking and rising of air. Subsolar point: they run westwards along the whole equator. It forms a band of low pressure near the equator, with high pressure areas around it. Upper atmospheric circulations: rossby waves and the jet stream- text p. 150. Local winds- form in response to local conditions, but are often overwhelmed by. At surface level, there is an inland breeze-cool, moist air flowing. At night the air over the water gets warmer, since the water retains much more heat at night becauseo f its high heat capacity. Warm air rises and flows over the land--same cycle as during the. 1. day, in reverse: mountain valley breezes, katabatic winds.
