climate and global change notes 16-1 earth’s radiation & energy budget solar radiation versus...
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Climate and Global Change Notes
16-1
Earth’s Radiation & Energy Budget
Solar Radiation Versus Latitude
Budget Versus LatitudeWeatherOcean Currents
Science Concepts
Incident RadiationEmitted Radiation
The Earth System (Kump, Kastin & Crane)
• Chap. 4 (pp. 58-59)
Climate and Global Change Notes
16-2
Global Radiation Budget Variations
What do you think the global distribution of the Earth’s
longwave r adiation exiting the top of the atmosphere should look like?
What latitude should have the maximum emitted radiation?
What latitude should have the least?
What determines the amount of emitted radiation from any object?
Climate and Global Change Notes
16-3
Global Radiation Budget Variations
Note:
• General decrease as move toward thepoles
• Minimumjust north of the Equator
• Maximumnorth and south of Equatorial minimum
Climate and Global Change Notes
16-4
Global Radiation Budget Variations
Annual Average Cloud Cover
• Note
- Minimum- Maximum
http://isccp.giss.nasa.gov/products/browsed2.html
Climate and Global Change Notes
16-5
Global Radiation Budget Variations
Net Radiation vs Latitude
400
300
200
100
0 10N 10S 30S 30N 50S 50N 90S 90N
Latitude
Surplus
Heat Transfer Heat Transfer
Radiation Lost Radiation Received
Deficit Deficit
Radiation Intensity ( W
/ m 2 )
Climate and Global Change Notes
16-6
Global Radiation Budget Variations
Atmospheric Heat Transfer
• Example
- Low pressuresystem ormidlatitude cycloneover U.S.
http://visibleearth.nasa.gov/Sensors/Terra/
Climate and Global Change Notes
16-7
Global Radiation Budget Variations
Atmospheric Heat Transfer
• Example
- Low-pressure system off Australia
http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=2108
Climate and Global Change Notes
16-8
Global Radiation Budget Variations
Atmospheric Heat Transfer
• Example
- Hurricane Georges battering the Gulf Coast on September 28, 1998
Climate and Global Change Notes
16-9
Global Radiation Budget Variations
Atmospheric Heat Transfer• Example
http://visibleearth.nasa.gov/Sensors/Terra/
Climate and Global Change Notes
16-10Global Radiation Budget
VariationsOcean Heat Transfer
• Example
- Gulf Stream