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Gwen Noda

The Last Glacial Termination - 0 views

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    A major puzzle of paleoclimatology is why, after a long interval of cooling climate, each late Quaternary ice age ended with a relatively short warming leg called a termination. We here offer a comprehensive hypothesis of how Earth emerged from the last global ice age. A prerequisite was the growth of very large Northern Hemisphere ice sheets, whose subsequent collapse created stadial conditions that disrupted global patterns of ocean and atmospheric circulation. The Southern Hemisphere westerlies shifted poleward during each northern stadial, producing pulses of ocean upwelling and warming that together accounted for much of the termination in the Southern Ocean and Antarctica. Rising atmospheric CO2 during southern upwelling pulses augmented warming during the last termination in both polar hemispheres.
Gwen Noda

Effects of CO2 on Coral Reefs - Student Activity - 0 views

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    NOAA's Coral Literature, Education & Outreach (CLEO) Student Activity goes with background info here: http://www.coral.noaa.gov/cleo/pdf/Carbon%20Dioxide%20background.pdf
Gwen Noda

Effects of CO2 on Coral Reefs - 0 views

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    NOAA's Coral Literature, Education & Outreach (CLEO) Background Information
Gwen Noda

Home | Ocean Climate - 0 views

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    UN Climate Change Ocean Climate Forum
Gwen Noda

Science On a Sphere - 0 views

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    Science On a Sphere Well-crafted visualizations provide unique and powerful teaching tools Science On a Sphere® is a large visualization system that uses computers and video projectors to display animated data onto the outside of a sphere. Researchers at NOAA developed Science On a Sphere® as an educational tool to help illustrate Earth System science to people of all ages. Animated images of complex processes such as ocean currents, sea level rise, and ocean acidification are used to to enhance the public's understanding of our dynamic environment. Ocean Acidification on Science On a Sphere® The movies below were developed for use on Science On a Sphere® and show computer model simulations of surface ocean pH and carbonate mineral saturation state for the years 1895 to 2094. The first movie shows a computer recreation of surface ocean pH from 1895 to the present, and it forecasts how ocean pH will drop even more between now and 2094. Dark gray dots show cold-water coral reefs. Medium gray dots show warm-water coral reefs. You can see that ocean acidification was slow at the beginning of the movie, but it speeds up as time goes on. This is because humans are releasing carbon dioxide faster than the atmosphere-ocean system can handle.
Gwen Noda

NRDC: Ocean Acidification: The Other CO2 Problem, Video "Acid Test" - 0 views

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    Video, "ACID TEST: the Global Challenge of Ocean Acificiation," The film originally aired on Discovery Planet Green. narrated by Sigourney Weaver and featuring several very knowledgable scientists. 21 min, 34 sec long\n\nThere is a choice of "high quality or "normal quality," presumably to accommodate your Internet connection speed. There is also a link to a "YouTube" version that has a slightly larger image.
Gwen Noda

NRDC: Ocean Acidification: The Other CO2 Problem, Science Behind "Acid Test" - 0 views

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    Science behind the film "ACID TEST: the Global Challenge of Ocean Acificiation"
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