UNIB10007 Lecture Notes - Lecture 6: Negative Feedback, Radiative Forcing, Background Radiation
13 Aug 2020
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Document Summary
Internal climate variability: climate can vary over a wide range of timescales due to internal processes, coupling between the atmosphere and its weather variability with oceans, land surface, and snow and ice. The ocean response time is very long because of the large heat capacity of the ocean and the very slow currents. External climate forcing: due to processes external to the climate system, such as volcanic eruptions, changes in solar forcing. Periods of much colder temperature at regular intervals. The ice ages are relatively stable climate states with a similar total solar irradiance at the top of the atmosphere, but a much higher albedo. Global temperature decreases is around 5 degrees. He calculated orbital variations for earth (serbian mathematician) Variations caused by interaction with sun, moon and planets. Obliquity: variation in the tilt of the earth"s axis. Does not modify the amount of annual solar radiation. Modifies the intensity of the seasons in both hemispheres.
