Lecture 06 (Climate Change: Move to Action (Winter 2008))

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{{#if:Lecture 6 discusses the greenhouse effect and how adding greenhouse gases changes the heat loss rate in the conservation equation. Then the radiative balance of the atmosphere is discussed, by following the solar energy through atmosphere. There are only two things that can happen, energy is absorbed or not absorbed; effectively, it is reflected. Once absorbed the solar energy, primarily visible radiation, is partitioned into radiative thermal energy (infrared), the energy involved in phase changes of water (latent heat), and thermally forced motion of the atmosphere and ocean. The ocean and atmosphere act to move heat, which is received in excess in the tropics, towards the poles. The different components of the Earth's physical climate system, the atmosphere, the ocean, the land, and the cryosphere are discussed in terms of their role in absorbing, reflecting, or transporting heat from the Earth's surface into the deep ocean or land. There is a brief discussion of the Younger Dryas - an example of abrupt climate change.|== Lecture Summary == Lecture 6 discusses the greenhouse effect and how adding greenhouse gases changes the heat loss rate in the conservation equation. Then the radiative balance of the atmosphere is discussed, by following the solar energy through atmosphere. There are only two things that can happen, energy is absorbed or not absorbed; effectively, it is reflected. Once absorbed the solar energy, primarily visible radiation, is partitioned into radiative thermal energy (infrared), the energy involved in phase changes of water (latent heat), and thermally forced motion of the atmosphere and ocean. The ocean and atmosphere act to move heat, which is received in excess in the tropics, towards the poles. The different components of the Earth's physical climate system, the atmosphere, the ocean, the land, and the cryosphere are discussed in terms of their role in absorbing, reflecting, or transporting heat from the Earth's surface into the deep ocean or land. There is a brief discussion of the Younger Dryas - an example of abrupt climate change.|}} {{#if:Powerpoint Lecture 6|===Lecture Link=== Powerpoint Lecture 6|}} {{#if:* Greenhouse effect

  • Radiative Balance of the Earth
  • Earth’s Climate System
    • Atmosphere
    • Clouds
    • Oceans
    • Land
    • Ice (Cryosphere)|===Lecture Outline===
  • Greenhouse effect
  • Radiative Balance of the Earth
  • Earth’s Climate System
    • Atmosphere
    • Clouds
    • Oceans
    • Land
    • Ice (Cryosphere)|}}

{{#if:|== Assigned Reading == {{{Assigned Reading}}}|}} {{#if:Judith Lean: Living with a Variable Sun

Scott Doney: Ocean Acidification|== Relevant Reading == Judith Lean: Living with a Variable Sun

Scott Doney: Ocean Acidification|}} {{#if:|== Foundational References == {{{Foundational References}}}|}} {{#if:|== Relevant Readings Posted by Others == {{{Relevant Readings Posted by Others}}}|}} {{#if:Attribution, Climate Science, Radiative Balance, Water|== Topics Covered == Attribution, Climate Science, Radiative Balance, Water|}} {{#arraymap:Attribution, Climate Science, Radiative Balance, Water|,|q|| }} {{#arraymap:W08|,|q|| }} {{#arraymap:Relevant|,|q|| }}



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