ESS261H1 Lecture Notes - Lecture 5: Water Cycle, Ocean Current, Thermohaline Circulation
Document Summary
Include various elements: water, heat all from the different spheres (atmosphere, biosphere, hydrosphere, lithosphere, etc. ) Different factors affect climate: to keep it at balance: greenhouse effect. This causes the earth to have a global average of 15c, verse -19c. Effect: without this majority of the water would be frozen effecting biosphere drastically: albedo: (the proportion of the incident light or radiation that is reflected by a surface) White surfaces (e. g. glaciers) reflect sunlight back into space. Dark surfaces (e. g. oceans) absorbs energy visible light transformed to heat energy. Ultimately: visible light transforms to heat energy to warm/cool from reflecting it back: earth"s orbit: milankovich cycles (change in earth"s orbit) Eccentricity (stretch of planet surface): effects total amount of sunlight over a year. Precession: effects if winter happens when earth is closer to sun. Eccentricity (%) + tilt + precession index + combined signal (radiation received) Geosphere contribution to climate system is co2 + silicates carbonates + quartz.
