SCI1300 Lecture Notes - Lecture 13: Cumulonimbus Cloud, Tropopause, Westerlies

• School: Monash University
• Department: Science
• Course: SCI1300
• Professor: Christian Jakob

Document Summary

Seasons = earth tilt, ocean and atmosphere circulation. Forced variability: overlapping regular cycles can produce pictures like this, the orbital variations of earth around the sun are called milankovich cycles. Forced variability: a(cid:374) e(cid:454)te(cid:396)(cid:374)al i(cid:374) ue(cid:374)(cid:272)e that (cid:448)a(cid:396)ies, i(cid:373)p(cid:396)i(cid:374)ts its o(cid:449)(cid:374) (cid:448)a(cid:396)iatio(cid:374) o(cid:374)to the (cid:272)li(cid:373)ate s(cid:455)ste(cid:373), the interaction of components of the climate system causes quasi-oscillatory behaviour in. Internal variability involves: the non-linear (chaotic) behaviour of the components of the climate system (for instance (cid:449)eathe(cid:396) (cid:862)(cid:374)oise(cid:863)(cid:895). The fact that different components act on different time scales: the fact the components interact. Decadal and faster climate internal variability: the processes that occur on particular times(cid:272)ales (cid:396)esult i(cid:374) patte(cid:396)(cid:374)s o(cid:448)e(cid:396) ti(cid:373)e (cid:272)alled (cid:862)(cid:373)odes(cid:863) o(cid:396) (cid:862)os(cid:272)illatio(cid:374)s(cid:863). It (cid:272)a(cid:374) (cid:271)e dif (cid:272)ult to dete(cid:396)(cid:373)i(cid:374)e e(cid:454)a(cid:272)tl(cid:455) (cid:449)he(cid:374) a (cid:272)li(cid:373)ate (cid:272)(cid:455)(cid:272)le is (cid:272)ha(cid:374)gi(cid:374)g (cid:271)e(cid:272)ause of the (cid:272)o(cid:373)ple(cid:454) (cid:272)o(cid:373)(cid:271)i(cid:374)atio(cid:374)s of (cid:373)odes a(cid:374)d (cid:396)a(cid:374)do(cid:373) u(cid:272)tuatio(cid:374)s that gi(cid:448)e us ou(cid:396) dail(cid:455) (cid:449)eathe(cid:396).