Download Global climate zones Id: an idealized simple view

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Tissue engineering wikipedia , lookup

Extracellular matrix wikipedia , lookup

Cell cycle wikipedia , lookup

Cell encapsulation wikipedia , lookup

Cell growth wikipedia , lookup

JADE1 wikipedia , lookup

Cytokinesis wikipedia , lookup

Cellular differentiation wikipedia , lookup

Cell culture wikipedia , lookup

Organ-on-a-chip wikipedia , lookup

Mitosis wikipedia , lookup

Amitosis wikipedia , lookup

List of types of proteins wikipedia , lookup

Transcript
Railsback's Fundamentals of Quaternary Science
Global climate zones Id: an idealized simple view
Vertical
cross-section
Map view
Polar Cell
H
Hadley
Cell
H
L
Ferrel
Cell
Climate Zones
L
H
Polar High
L
H
L
H
60°N
H
H
L
L
L
L
L 0°
L
Hadley
Cell
Dry
Polar Front
Temperate
Westerlies
30°N Subtropical Highs
Precipitation
Polar Easterlies
Subpolar Lows
(anticyclones)
L
Wind Belts
and Zones
Rainy
Winter wet; summer dry
Horse Latitudes
Dry
Winter dry; summer wet
Tropics
Easterlies
Trade
(Northeasterlies) Winds
Intertropical
Convergence
Zone (ITCZ)
Doldrums
Tropics
Easterlies
Trade
(Southeasterlies) Winds
Rainy
Winter dry; summer wet
H
Ferrel
Cell
H
L
Polar Cell
The diagram above is a typical schematic representation of Earth's surface atmospheric pressure,
surface winds, and tropospheric circulation. It
mimics diagrams in many introductory climatology
and oceanography textbooks. Parts II to V of this
series expand on this theme in a little more detail.
H
H
L
L
H
H
L
H
60°S
30°S
Subtropical Highs
Horse Latitudes
(anticyclones)
Temperate
Westerlies
Subpolar Lows
Polar Front
Polar High
Atmospheric circulation is driven by rising of warm air at the
equator (at the latitude of maximal solar heating) and by sinking
of cold air at the poles (at the latitude of minimal heating). On Earth,
the air that has risen from the equator sinks at about 30° N and S,
and some of that air returns across Earth's surface to the equator to
close the Hadley Cells. The air that has sunk and moved out from
Dry
Winter wet; summer dry
Polar Easterlies
Rainy
Dry
the poles warms and rises at about 60° N and S, and the air that
returns aloft to the pole closes the Polar Cells. In between, the Ferrel
Cells mirror the vertical flow at 30° and 60° N and S, with each Ferrell
Cell like a ball bearing rolled by the Hadley and Polar cells. Earthsurface movement of air in these three kinds of cells gives the surface
LBR 2/2013
winds belts shown here.
FQSGlobalClimateZonesIc02.odg