GLY 102 Lecture 4: March 7

• School: University at Buffalo
• Department: Geology
• Course: GLY 102
• Professor: Jason Briner

Document Summary

Read chapter 6 and 7, on the homework. Forcing- adding a new component of energy into the system. Example of forcing: el nino warming; volcanic eruption- de(cid:272)reases earth"s te(cid:373)peratures, warms temperature in the stratosphere. Increase global warming- creates a change that increases warming- faster warming: positive feedback. Will most likely see climate forcing diagram on next test. Aerosol: particles in the atmosphere- liquid or solids. Volcanic ash, dust, sand grains, forest fire burning, salt: aerosols. Decrease in aerosol levels, increases global warming. Su(cid:374) spots: (cid:374)u(cid:373)(cid:271)er of dots o(cid:374) the su(cid:374)"s surfa(cid:272)e is proportio(cid:374)al to the su(cid:374)"s radia(cid:374)t. On the graph with galileo: red- cooler period; blue warmer. In the last 35 years, the sun has cooled slightly, but temperatures have increased. Look at the graph te(cid:373)perature (cid:448)s solar a(cid:272)ti(cid:448)ity: therefore it is (cid:374)ot the su(cid:374)"s i(cid:373)pa(cid:272)t (cid:271)ut humans due to the increase temperature change and steady solar radiance. Can measure pass volcanic eruptions: ice cores, history.