GEOB 102 Lecture Notes - Lecture 1: Volatile Organic Compound, Ionosphere, Soot

• School: UBC
• Department: Geographical Biogeosciences
• Course: GEOB 102
• Professor: Simon Donner

Document Summary

Geob 102 (september 9, 2016) the sun, seasons, and. Atmosphere: outline, ola(cid:396) e(cid:374)e(cid:396)g(cid:455), ea(cid:396)th(cid:859)s (cid:396)otatio(cid:374) a(cid:374)d tilt, what causes the seasons, atmospheric composition, ozone layer, air pollution, how energy is distributed over the earth. The seasons: seasonality (cid:448)a(cid:396)iatio(cid:374) of the su(cid:374)(cid:859)s altitude (angle above horizon) and the changing length of daylight that occurs over a year day length results in summers and winters. Insolation (incoming solar radiation) is highest when sun is at subsolar point (directly overhead, su(cid:374)(cid:859)s rays hit earth perpendicularly) where can the subsolar point occur: along the equator, 23. 5 n/s of equator, ex. Tilt and the subsolar point: u(cid:374)(cid:859)s (cid:396)a(cid:455)s di(cid:396)e(cid:272)tl(cid:455) hit ea(cid:396)th (cid:894)pe(cid:396)pe(cid:374)di(cid:272)ula(cid:396) to su(cid:396)fa(cid:272)e(cid:895) at the subsolar point, solar declination (latitude of subsolar point) varies between 23. 5 n (tropic of cancer) and. 23. 5 s (tropic of capricorn) during the year (cid:894)depe(cid:374)ds o(cid:374) a(cid:374)gle of ea(cid:396)th(cid:859)s a(cid:454)ial tilt(cid:895: equinoxes (days are the same length worldwide) occur when earth is straight relative to sun.