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    ATOMOSPERIC PRESSURE, WIND & CIRCULATION

A. INTRODUCTION

Important because:

Global Wind Speed Patterns

map: global wind speeds
Image credit: NASA Earth Observatory http://earthobservatory.nasa.gov/Newsroom/NewImages/images_topic.php3?topic=atmosphere&img_id=5181

Learning Outcomes

By the end of this unit you should be able to:


B. DENSITY AND PRESSURE

Atmospheric pressure

Density


C. CORIOLIS link icon: coriolis animation 2 link icon: coriolis animation 2

diagram: coriolis deflection diagram: coriolis deflection diagram: coriolis deflection
USA pressure map

 


D. GLOBAL PRESSURE AND WIND PATTERNS

Diagram: main global atmospheric circulation cells

Intertropical Convergence Zone (~0-10o)

Subtropical high pressure cells (~20-40o)

Subpolar low & Polar front (~40-70o)

Polar high

Map: global circulation and pressure patterns


E. LOCAL AND REGIONAL WINDS

Land and sea breezes

Sea breeze
Diagram: sea breeze

Land breeze
Diagram: land breeze

Monsoon winds in Southeast Asia   Link icon: textbook comment

Winter monsoon

Map: Asian winter monsoon

Summer monsoon

Map: Asian summer monsoon


 

F. OCEANIC CIRCULATION PATTERNS   Link icon: note about textbook

Map: oceanic circulation cells


G. SUMMARY  link icon: obtain current weather map


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©Karen A. Lemke: klemke@uwsp.edu
Last revised September 26, 2012