GEOG306 Lecture Notes - Lecture 8: Milankovitch Cycles, Paleoclimatology, Axial Tilt
9 May 2019
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Document Summary
If this feedback would promote less ice coverage, it would still be an amplifying feedback but just in the opposite direction: total incoming solar radiation, cycle about 100,000 years, makes sense! Because eccentricity is the only orbital parameter that changes earths sun distance: more important, is the distribution of solar energy that is important. Today"s rates of change, and values like atmospheric co2, are higher than observed in the past million years. Ice sheets has episodes of fast collapse sending lots of ice and water into the oceans. In this video we will examine what climate models are, where they came from, and how they are built: why model climate, we can understand the current weather by look, and past weather by analyzing. If the boxes are near the surface then they might contain vegetation like trees, and shrubs. Climate modeling is what"s known as a boundary forcing problem.
