Lecture 6

3 Pages
Unlock Document

University of Toronto Scarborough
Environmental Science
Tanzina Mohsin

Lecture 6: Glaciers and Water Issues in the GTA Glaciers Glacier is body of moving ice that has been formed on land by compaction and re-crystallization Glaciers and ice sheets are unutilized sources of water Presently glaciers cover ~10% of Earth Play a signification role of Highly reflective surface, reflects back to space Positive feedback if it melts Formation and Movements Snow remains in same area year round Enough snow accumulates to transform into ice same process as ice flake turn to ice crystal Compression and have compact ice As result of compression, have re-crystallization, and they get smaller, so more compact formation of ice They melt and freeze again because of changing seasons over the years If melting process is not dominant, therefore, more snowfall, less melting, then have ice sheet over the years A balance between winter and summer With climate change, get less amount of snow every year Not just melting, but if snow accumulation is less then not compression, not re-crystallization Ice at bottom of glaciers creates plasticity and it starts to move and glacier is born Glacier is on top of land and not on top of sea or any body of water
More Less

Related notes for EESA07H3

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.