Notes: Global Wind Patterns 11/19 p. 62

Notes: Global Wind Pattern 11/19 p. 62 Pressure differences in atmosphere cause movement of air worldwide. Air near surface flows from poles to equator, because it moves from high pressure (where cold air sinks) to low pressure areas (where warm air rises).

Notes: Global Wind Pattern 11/19 p. 62 Pressure differences in atmosphere cause movement of air worldwide. Air near surface flows from poles to equator, because it moves from high pressure (where cold air sinks) to low pressure areas (where warm air rises). Each hemisphere has three cells of air (air moving in circular direction) that circulate through the entire depth of the troposphere. These are the Hadley cell, Ferrel cell and Polar cell.

Each hemisphere has three cells of air (air moving in circular direction) that circulate through the entire depth of the troposphere. These are the Hadley cell, Ferrel cell and Polar cell. Jet streams- high speed winds blow in upper troposphere and lower stratosphere. There is a polar and a subtropical jet stream.

Glue to p. 63 sideways (don’t cut it) Each hemisphere has three cells of air (air moving in circular direction) that circulate through the entire depth of the troposphere. These are the Hadley cell, Ferrel cell and Polar cell. Jet streams- high speed winds blow in upper troposphere and lower stratosphere. There is a polar and a subtropical jet stream. Air moves in curved direction due to Earth’s Rotation (the Coriolis Effect). Glue to p. 63 sideways (don’t cut it)

300 - 600 latitude 300 - 600 latitude

300 - 600 latitude Horse latitudes=300 latitude= weak winds Horse latitudes=300 latitude= weak winds 300 - 600 latitude

Horse latitudes=300 latitude= weak winds *Trade Winds used by trade ships sailing from Europe to Americas in 1700-1800s 300 - 600 latitude Horse latitudes=300 latitude= weak winds 00-300 latitude * 00-300 latitude Horse latitudes=300 latitude= weak winds 300 - 600 latitude

Horse latitudes=300 latitude= weak winds *Trade Winds used by trade ships sailing from Europe to Americas in 1700-1800s 300 - 600 latitude Horse latitudes=300 latitude= weak winds 00-300 latitude Intertropical Convergence Zone = “Doldrums” at equator= weak winds Low Pressure 00-300 latitude Horse latitudes=300 latitude= weak winds 300 - 600 latitude

Horse latitudes=300 latitude= weak winds *Trade Winds used by trade ships sailing from Europe to Americas in 1700-1800s Low Pressure 300 - 600 latitude Horse latitudes=300 latitude= weak winds 00-300 latitude Intertropical Convergence Zone = “Doldrums” at equator= weak winds Low Pressure 00-300 latitude Horse latitudes=300 latitude= weak winds 300 - 600 latitude Low Pressure

Horse latitudes=300 latitude= weak winds *Trade Winds used by trade ships sailing from Europe to Americas in 1700-1800s Low Pressure 300 - 600 latitude High Pressure Horse latitudes=300 latitude= weak winds 00-300 latitude Intertropical Convergence Zone = “Doldrums” at equator= weak winds Low Pressure 00-300 latitude Horse latitudes=300 latitude= weak winds High Pressure 300 - 600 latitude Low Pressure

Horse latitudes=300 latitude= weak winds *Trade Winds used by trade ships sailing from Europe to Americas in 1700-1800s Polar Cells= smallest and weakest cells Low Pressure 300 - 600 latitude High Pressure Horse latitudes=300 latitude= weak winds 00-300 latitude Intertropical Convergence Zone = “Doldrums” at equator= weak winds Low Pressure 00-300 latitude Horse latitudes=300 latitude= weak winds High Pressure 300 - 600 latitude Low Pressure Polar Cells

Horse latitudes=300 latitude= weak winds *Trade Winds used by trade ships sailing from Europe to Americas in 1700-1800s Polar Cells= smallest and weakest cells Low Pressure Ferrel Cells move in opposite direction as other cells 300 - 600 latitude High Pressure Horse latitudes=300 latitude= weak winds 00-300 latitude Intertropical Convergence Zone = “Doldrums” at equator= weak winds Low Pressure 00-300 latitude Horse latitudes=300 latitude= weak winds High Pressure 300 - 600 latitude Ferrel Cells Low Pressure Polar Cells

Horse latitudes=300 latitude= weak winds Polar Cells= smallest and weakest cells *Trade Winds used by trade ships sailing from Europe to Americas in 1700-1800s Low Pressure Ferrel Cells move in opposite direction as other cells 300 - 600 latitude High Pressure Horse latitudes=300 latitude= weak winds Hadley Cells= largest cells 00-300 latitude Intertropical Convergence Zone = “Doldrums” at equator= weak winds Low Pressure 00-300 latitude Hadley Cells Horse latitudes=300 latitude= weak winds High Pressure 300 - 600 latitude Ferrel Cells Low Pressure Polar Cells

Horse latitudes=300 latitude= weak winds Polar Cells= smallest and weakest cells *Trade Winds used by trade ships sailing from Europe to Americas in 1700-1800s Low Pressure Ferrel Cells move in opposite direction as other cells 300 - 600 latitude High Pressure Horse latitudes=300 latitude= weak winds Hadley Cells= largest cells 00-300 latitude Intertropical Convergence Zone = “Doldrums” at equator= weak winds Low Pressure 00-300 latitude Hadley Cells Horse latitudes=300 latitude= weak winds High Pressure 300 - 600 latitude Ferrel Cells Low Pressure Polar Cells