Orbital variations - PowerPoint PPT Presentation

Wintertime climate variations forced by changes in earth’s orbit

Wintertime climate variations forced by changes in earth’s orbit Alex Hall UCLA Dep’t of Atmospheric and Oceanic Sciences Amy Clement Rosenstiel School of Marine and Atmospheric Science Dave Thompson Colorado State University Tony Broccoli Rutgers University

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How Sensitive is the Climate?

How Sensitive is the Climate?. Tectonic Variations. Warm early Cretaceous (100 Myr). Royer et al, Nature (2007). Tectonic Variations. Models of relationship between carbon cycle and global temperature can be used to try to find best match with proxy temperature data. Tectonic Variations.

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329 views • 21 slides

Lecture 18: Orbital Variations

Lecture 18: Orbital Variations. Part III, p. 116-117; Chapter 7 (p. 119-136) and Chapter 8 (137-153). Orbital-Scale Climate Change in the Past 0.5 Myr. Earth’s Orbit Today and the Seasons. Orbit around Sun: slightly elliptical. Tilt of spin axis at 23.5°.

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131 views • 10 slides

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