Class Notes (807,457)
Canada (492,633)
ESS102H1 (104)
Lecture 9

Lecture 9

3 Pages
Unlock Document

University of Toronto St. George
Earth Sciences
Christine Burton

GLG205 J 9 Climate is influenced by 5 components: Potential causes of climatic change over the geologic past - Shape and location of continents and oceans How has the atmosphere changed over time? - Oxygen as a waste product of Cyanobacteria Sunspots - Inhibit convection because of magnetic activity - Sunspots have an (approximate 11 year cycle Orbital parameters - Perihelion J when earth closest to sun - Aphelion J when earth furthest from sun o Northern hemisphere summer o Result in not all the ice melting during summer - Axial tilt J how much the earth is tilted Orbital fluctuations - L] ]ZZ Z[ - ]o]o~}o]]Z}oo[ - @]K}]Zo]}L~ ZZ]}LZ}o[ Eccentricity - 30 percent greater than Obliquity - More tilt means more severe seasons Precession - If a hemisphere is pointed towards the sun at perihelion, that hemisphere will be pointing aay at aphelion, and the difference in seasons will be more extrem
More Less

Related notes for ESS102H1

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.