'Ice core' diaporamas de présentation

Carbon Dioxide, Chemistry and Climate How do we know anything?

Climate Literacy Conference San Diego 18 Feb 2010. Carbon Dioxide, Chemistry and Climate How do we know anything?. Ken Caldeira Carnegie Institution Dept of Global Ecology Stanford, CA kcaldeira@stanford.edu. How do we know anything?. Thought, intuition, interior reflection

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Ice Cores

Ice Cores. Very important paleoclimatic archives. Records of past atmospheric conditions. Temperature Humidity Snow accumulation Atmospheric composition Volcanic activity Tropospheric turbidity Wind speed, wind direction Atmospheric circulation. Ice Core drilling.

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GLACIERS

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The Carbon Cycle

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Our Solar System

Our Solar System. Your Parents Solar System. 21 st Century Solar System. Who are some important astronomers?. Copernicus: first to state moon orbited around Earth and everything revolved around Sun. Also known as the heliocentric model .

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16. Evolution Review

16. Evolution Review. Essential Question: How does the evidence of geology, fossils, and comparative anatomy support the theory of evolution? Learning Target: I can summarize the evidence for the theory of evolution.

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The Gas Giants

The Gas Giants. Astronomy 311 Professor Lee Carkner Lecture 16. Gas Giant Basics. The 4 largest planets of the solar system are the gas giants Does not include Pluto The gas giants have no real surface, all we see is atmosphere. Missions to the Outer Planets.

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Glaciation and The Last Glacial Maximum (LGM)

Glaciation and The Last Glacial Maximum (LGM). The Last Glacial Maximum defined. NASA. During the LGM, (between 26,000 and 18,000 years ago ), there was about three times more glacier ice on the planet than there is now.

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~90 ppmv

~90 ppmv. -Cooler oceans decrease CO 2 by 22 ppmv -Saltier oceans increase CO 2 by 11 ppmv. Modern exchange rates of Carbon in gigatons per year. Interglacial-to-glacial changes in carbon reservoirs in gigatons. Carbon reservoirs (in gigatons) and their carbon-isotope values.

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Tracing the carbon cycle

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Long-term temperature records in Antarctica: The view from ice cores

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Antarctica from space

Antarctica from space. Antarctica. Antarctica is covered by ice. How snow is squeezed into ice. How an ice sheet is made. Antarctic ice. How thick is this ice sheet?. Layered ice. The ice core drill rig. The ice core. Handling ice cores. Studying ice cores. Layers in ice cores.

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Unit 18: Natural Climate Change

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NOy and Biomass Burning

NOy and Biomass Burning Don Smart and M. A. Shea Withlow et al. (1994) found that the Ice record in the Arctic contained a record of biomass

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MHD Modeling [Riley et al.]

MHD Modeling [Riley et al.]. Computed Radial HMF at 1 AU. Polar Fields needed. |Br| = 1.68 nT 2009. Cosmic Ray Proxy [Berggren et al., 2009]. M.M. GSN. We do not understand the 10Be modulation.

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Results

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