ASTR 1P01 Lecture 13: Solar Activity Cycle

• School: Brock University
• Department: Astronomy
• Course: ASTR 1P01
• Professor: Bozidar Mitrovic

Document Summary

Maunder noticed that records show very few sunspots from 1645 to 1715 (maunder minimum: maunder minimum coincided w/ the little ice age in europe & north america. Glaciers in the alps advanced, rivers froze early & remained frozen late, the north sea & the baltic sea froze. Data from 1980 suggests solar activity, as measured by average # of sunspots, goes hand-in-hand w/ the average ocean temp: afte(cid:396) (cid:1005)(cid:1013)(cid:1012)(cid:1004), that does(cid:374)"t see(cid:373) to (cid:271)e the (cid:272)ase. The increase in temp w/ decrease in solar activity after 1980 is attributed to increase in. H2o(v), co2 & ch4 are greenhouse gases that trap infrared radiation which warms up the atmosphere. We cannot say when exactly a given nucleus will decay but we know the probability that it will decay in time, t. The time in which a half of a larger # of c14 nuclei decay is.