Ice Core Data

CONNOR WALDRON + STEPHEN WALKERMRS. GEITHNER

P112/10 /12

Ice Core Data

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What happened to your title slide??? You had info on it on your last version....

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Make sure to spell check & check for "awkward" phrasingMake sure to "cite" sources for all info on each slide (use parenthetical citations or # your works cited & use those #s @ the end of the corresponding info

Background Info

Ice core sample removed from ice sheetFrom the ice caps of Antarctica Greenland

or from high mountain glaciers (Citation 3).Lower layers are older than upper ice core

contains ice formed over a range of years (Citation 3).

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There are still some words you can take out...one ex. ice core --> sample removed from ice sheet

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You might want to explain how an ice core is obtained...

Background Info Cont.

98% of Antarctic covered by the ice sheet 2,500 meters thick deepest location, 4,700 meters thick (Citation 3).

Ice sheet formed by accumulation of snow by drilling from the surface down we are drilling back in time.

Obtained with PICO electro-mechanical drill

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again, can probably still take out some words...

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You may want to put these pics after the background info on what an ice core is... or maybe put one (like the bottom middle) on that slide

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What are you going to discuss with this graph? (Put info on slide or in notes section on bottom....How is this supporting the claim that climate is warming?

How Does This Affect the Climate?

130,000-125,000 years ago warming period 1◦c-2◦c warmer than now called an inter-glacial (Citation 1).

120,000-20,000 years ago long cooling period called the Wisconsin Period last Great Ice Age (Citation 1).

19,000-15,000 years ago another warming period to next inter-glacial (which we are in) (Citation 1).

Inter Glacial today one of many reasons for global warming mostly due to humans

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Your title doesn't really make sense...What is affecting climate????OR is something showing how climate has changed?

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does this last inter-glacial account for the "rapid" rate of warming we are seeing or just some of the warming?Don't forget degrees symbol in the first point...

What are Isotopes?

Many quantities have been measured in ice cores to make conclusions about earths history such as oxygen isotope ratios carbon dioxide (citation 6). concentration methane concentration electrical conductivity and dust particle concentration.

Atoms of the same element have different numbers of neutrons The different possible versions of each element are called isotopes.

Two types O16 and O18 O16 reacts faster because O18 contains 2 more neutrons

Able to tell if climate changes whenO18 increases in ocean watersign of warming period

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I would switch the order of your pointstell us more about how (oxygen) istope ratios give info about temperature change.... give ex.maybe some info/ex on CO2 levels also...

Carbon Dioxide

CO2 in the Ice Core RecordFor the first time in 400,000 yearsCO2 is at

390 parts per million continuing to rise at 2 parts per million (ppm) per year (Citation 5).

http://nicl-smo.unh.edu/video/index.shtml




Works Cited

Jouzel, J., R. D. Koster, R. J. Suozzo, G. L. Russell. 1994. Stable water isotope behavior during the last glacial maximum: A general circulation model analysis. Journal of Geophysical Research, 99: 25791-25802.

Antarctic Ice Cores and Environmental Change. Dr. T.H. Jacka, 1993. Web. 5 Dec. 2012. <http://www.chem.hope.edu/~polik/warming/IceCore/ IceCore2.html>.

"Ice Cores." Climate Data Information. N.p., 2010. Web. 6 Dec. 2012. <http://www.climatedata.info/Proxy/Proxy/icecores.html>.

"New Antarctic Ice Core Data: A Closer Look." New Ice Core Data: A Closer Look. N.p., 30 May 2000. Web. 6 Dec. 2012. <http://www.daviesand.com/Choices/ Precautionary_Planning/Closer_Look/index.html>.

"CO2 in the Ice Core Record." National Ice Core Laboratory Science Management Office. Dr. Richard Alley, n.d. Web. 10 Dec. 2012. <http://nicl-smo.unh.edu/video/index.shtml>.

"Isotopes." Isotopes and Radioactivity. N.p., n.d. Web. 10 Dec. 2012. <http://www.colorado.edu/physics/2000/isotopes/index.html>.

Ice Core Data

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