NATS 1880 Chapter Notes - Chapter 10: Runaway Greenhouse Effect, Solar Wind, Northern Hemisphere

• School: York University
• Department: Natural Science
• Course: NATS 1880
• Professor: Paul Delaney

Document Summary

Chapter 10: the nature and evolution of habitability. 10. 1: the concept of a habitable zone: earth"s dista(cid:374)(cid:272)e fro(cid:373) the su(cid:374) (cid:448)aries fro(cid:373) a (cid:373)i(cid:374)i(cid:373)u(cid:373) of (cid:1005)47. (cid:1005) (cid:373)illio(cid:374) k(cid:373) ea(cid:272)h ja(cid:374) to (cid:373)a(cid:454)i(cid:373)u(cid:373) On earth, this would escape into space rapidly: we can find liquids on surface only on worlds large enough to hold significant atmospheres (low pressure) Titan is the only one that meets this criterion: surface temperature of a planet depends on its: B) albedo (proportion of radiation it reflects) D) internal heat (primordial, tidal, or radioactive) 10. 2: venus, an example in potential habitability: the surface of venus is far too hot for liquid water (470 degrees c, ve(cid:374)us or(cid:271)its the su(cid:374) at a dista(cid:374)(cid:272)e a(cid:271)out 7(cid:1006)% of earth"s dista(cid:374)(cid:272)e. 1) the co2 is all in the atmosphere on venus vs on earth, it is locked up in the carbonate rocks or dissolved in the oceans.