GEO 605 Study Guide - Final Guide: Periglaciation, Nutrient Cycle, Treeless Plain

• School: Ryerson University
• Department: Geography
• Course: GEO 605
• Professor: Valentina Capurri

Document Summary

Lecture 2 & 3 the physical geography of the canadian arctic. Because the earth is tilted we have seasons, as the earth orbits the sun the hemispheres (cid:271)e(cid:272)o(cid:373)e tilted f(cid:396)o(cid:373) the su(cid:374), a(cid:374)d it"s the a(cid:374)gle of the su(cid:374)light that de(cid:272)ides if (cid:449)e ha(cid:448)e winter not the distance. When we get to summer in canada the northern hemisphere is tilted towards the sun. As we get into summer our days get longer because we are further north in the planet, if you li(cid:448)e (cid:271)y the e(cid:395)uato(cid:396) it does(cid:374)"t (cid:373)atte(cid:396) (cid:449)hat ti(cid:373)e of yea(cid:396) the days and nights are the same length. The sun shines at midnight during the summer above the arctic circle. Sets i(cid:374) no(cid:448)e(cid:373)(cid:271)e(cid:396) does(cid:374)"t (cid:272)o(cid:373)e (cid:271)a(cid:272)k till ja(cid:374)ua(cid:396)y. A lot less solar radiation even with 24 hours of sunlight in the summer. Wind happens because warm air rises and cold air goes down causing a change in air pressure.