ENV234H1 Lecture Notes - Lecture 6: Cosmic Dust, Background Radiation, Orbital Elements
11 Oct 2016
School
Department
Course
Professor
Document Summary
Catastrophic events: volcanic eruptions, meteorite impacts. Extraterrestrial factors: solar output, earth-sun geometry. Ocean factors: atmosphere/ocean heat exchange, surface reflectivity. Land factors: volcanic emissions, mountain building, continental drift. Atmospheric factors: atmospheric chemistry, atmospheric reflectivity, atmosphere/ocean heat exchange. The temperature of an object depends on the amount of energy it receives and emits. Incoming and outgoing radiation incoming solar radiation is short wave: ultraviolet, or uv, visible and short-wave ir. Earth absorbs energy from the sun and re-emits ir radiation. The difference between incoming solar radiation energy and outgoing infrared radiation energy can be calculated for each area of the world. On a global scale, the incoming energy is the same, but this is not always the case on a local scale. Incoming solar radiation is mostly uv, visible and short-wave ir. All energy within the climate system comes from the sun. 30% of the incoming solar radiation is reflected back to space by clouds (5%) and.
