Lecture 7 Notes

Lecture 7 Notes - Lecture7Notes 1. ,CH4,and

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Lecture 7 Notes 04:14 Lecture 7 Quiz Questions: 1. One of the tools that scientists use to study Global Climate change is: CO2 trapped in air bubbles in glacial ice 2. Atmosphere can be considered: as a complex chemical factory 3. Global Warming is: the increase in average temperature of the earth 4. The Greenhouse Effect: is the warming up of the lower atmosphere caused by Co2, CH4, and CFCs 5. The Milankovitch Cycles cause cycles of climate change at a scale of 100,000 years Tools for studying Global Climate change: Geological Record     : o CO2 trapped in air bubbles in glacial ice o Organic material in sediments o Fossils- pollen- tree rings Real-Time monitoring o Sampling atmospheric gases o Recording temperature o Composition of the ocean Mathematical models o Global Circulation Models (GCMs) o Predicting changes in atmospheric circulation at the global scale
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Atmospheric circulation:  warm tropical air neap the equator rises and moves north and south  descending in the mid-latitudes (sometimes producing deserts).  The air then rises again at  higher latitudes and finally descends at the poles. Atmospheric and Climate change:
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This note was uploaded on 10/04/2011 for the course GEOS 1024 taught by Professor Meschreiber during the Spring '08 term at Virginia Tech.

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Lecture 7 Notes - Lecture7Notes 1. ,CH4,and

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