BIO120H1 Lecture Notes - Intertropical Convergence Zone, Hadley Cell, Northern Hemisphere

42 views4 pages
Published on 12 Nov 2011
School
Department
Course
Professor
BIO120 Lecture 1: Distributional aspects of biodiversity
Distribution of solar energy:
Since the equator is tilted 23.5˚ with respect to the path the follows in its orbit
around the sun, therefore:
o At higher latitude, light strikes at a lower angle, and is spread over a
greater area. At the equator, the sun shines almost perpendicular on
earths surface.(Figure 4.1)
o In Northern Hemisphere, seasonal variation in temperature increases
significantly (less ocean to moderate temperature change.
Ex: at 60˚N, the average coldest month is -12˚C and the average
warmest month is 16˚C, differ by 28˚C. (Figure 4.3)
o The tropic of Cancer and the Tropic of Capricorn are two lines where the
sun is directly overhead at noon on the two solstices.
o Tropic of Cancer: lie at 23.5˚ North of the equator (sun is directly
overhead at June 21)
o Tropic of Capricorn: located 23.5˚ South of the equator( sun is directly
overhead at December 21)
Unlock document

This preview shows page 1 of the document.
Unlock all 4 pages and 3 million more documents.

Already have an account? Log in

Get OneClass Notes+

Unlimited access to class notes and textbook notes.

YearlyBest Value
75% OFF
$8 USD/m
Monthly
$30 USD/m
You will be charged $96 USD upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.