Objectives

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Objectives
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1. Describe the patterns of Insolation shown by the
   animation.
2. Explain the patterns you have identified.

• http//geography.uoregon.edu/envchange/clim_animat
  ions/flash/tmp2m.html

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Factors affecting insolation levels across the
globe

• Amount of atmosphere the insolation has to pass
  through due to the curvature of the earth
• Cloud cover and reflection (varies daily)
• Long term changes (tilt of Earth, eccentricity of
  orbit, wobble)
• Surface it hits (ALBEDO)
• The hemispheres and the seasons
• Length of day and night
• Ocean currents
• Urbanisation
• Aspect angle of slope
• Altitude
• Sun spot activity

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Factors affecting Insolation
Height above Sea level Altitude of the sun Land
and sea (proximity) Prevailing winds Ocean
Currents Seasonal changes Length of day and
night Aspect Cloud cover Urbanisation

• Using an atlas and the information on pages 210
  to 213 rank the global (short and long term) and
  local factors in an order of importance of how
  they affect the amount of radiation received and
  the resulting heat budget of the following
  places
• Newcastle Upon Tyne
• St Johns, Newfoundland
• Manaus, Brazil
• Budapest, Hungary
• Kathmandu, Nepal
• 2. Question 2 from page 256 of David Waugh.
• 3. Exam question June 2002 Question 1 plan
  it. Due in next week on Thursday.

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• What is meant by the earths heat budget? (5)
• Explain variations in insolation across the
  Earths surface (20)

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A look ahead.

• http//www.school-portal.co.uk/GroupDownloadFile.a
  sp?GroupId12426ResourceID40425
• Hadley cell etc
• http//www.school-portal.co.uk/GroupDownloadFile.a
  sp?GroupId12426ResourceID40102
• Coriolis effect