Part-5: Semi permanent High and Low Pressure Areas
Atmospheric Circulation and Surface Wind Belts
  
Rev 10-02-2001
[ Ch-4 Main ]   [ Exam-2 Topics]   [ Geog-100 Main ]

GLOBAL PRESSURE PATTERNS

• Four pressure areas

• January and July World Pressure Maps

  • Semi-permanent highs and lows

    • January     

    • July     

• Global pressure patterns and General Atmospheric Circulation  

• Subtropical high pressure belts:  Near 30 degrees latitude

MONSOONS

• Seasonal reversal of winds.

• January -- Normal Tradewinds flow     

• July -- Tradewinds reversed    

SURFACE WIND BELTS, REVISITED

• Idealized surface wind belts 

Semi permanent Highs and Lows; Wind Belts -- Summary
	SUMMARY Hadley cells Equatorial trough -- ITCZ STH -- subtropical highs Horse latitudes Northeast and Southeast trade winds Polar front Polar outbreak Prevailing Westerlies

[ Ch-4 Main ]   [ Exam-2 Topics]   [ Geog-100 Mai