Semi-permanent Northern Hemisphere Surface Pressure Systems

 

A. Subtropical Highs 

 

Related Both To Temperature Diffferences Between Equator/Subtropics (Hadley Cell) and Continent/Ocean

 

(Move North and Strengthen In Summer/Move South and Weaken in Winter)

 

Pacific High

Bermuda High

 

B. "Monsoonal" Pressure Systems

 

Related To Continent/Ocean Temperature Differences

 

North America

 

North American Thermal Low (Summer)

Great Basin High (Winter)

 

Pacific

 

Gulf of Alaska Low  (Winter)

 

Atlantic

 

Icelandic Low (Winter)

 

Asia

 

Asian Thermal Low (Summer)

Siberian High (Winter)