A&O SCI 3 Lecture Notes - Lecture 10: Geostrophic Wind, Aleutian Low, Hadley Cell
20 Apr 2016
School
Department
Course
Professor
Document Summary
Synoptic- entire countries/continent, 10,000, see highs and lows pressure systems. Global scale- northern hemisphere, used for modeling over long periods of time, past, present , future. Hadley cell= warmer regions of air, interopical convergence zone (itcz) where most clouds are formed, Named from the direction from which they came. Upper-level westerlies: warm tropics with high columns that distributed the air, slanted pressure surfaces poleward pgf aloft, geostrophic wind= equal pressures west to east. Jet stream cause by the convergence of warm and cold air near the surface. Before the pressure lines would be slanted from warm to cold, but not in ^^^ There is a discontinuity between the pressure changes. How does the jet stream influence local surface temps: correspondence between jet stream and polar front: a transition zone between cold polar air and warm mid lat air. Influence of rossby waves on temp: getting much more frequent and larger perhaps due to climate change.
