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Activity Number:
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157
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Type:
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Topic Contributed
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Date/Time:
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Monday, August 7, 2006 : 10:30 AM to 12:20 PM
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Sponsor:
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Section on Statistical Graphics
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| Abstract - #307504 |
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Title:
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Visualizing Several Abnormal Climate Changes in Central America from January 1995--December 2000
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Author(s):
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Sang-Hoon Cho*+ and Hyonho Chun and Deepayan Sarkar
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Companies:
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University of Wisconsin-Madison and University of Wisconsin-Madison and State University of Wisconsin
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Address:
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5639 Longford Terrace 104, Fitchburg, WI, 53711,
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Keywords:
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El Nino ; global warming ; ozone ; surface temperature ; graphics ; visualization
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Abstract:
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We aim to effectively visualize several uncovered abnormal patterns of the dataset. As an initial step, we analyzed the changes of the variables of the dataset at each location on a 24x24 grid over time and found abnormal patterns, including an overall increasing pattern of the surface temperature at each location once adjusted for its elevation, the surge of the surface temperature in the ocean near the coast of Peru during summer 1997, and the surge of the surface temperature at a particular location in Mexico. The first two findings correspond to the natural phenomena that are global warming and El Nino, whereas the last seems to be related to the rapid decrease of the ozone level. Dynamic displays are being considered to show the surface temperature changing over time and plots to emphasize the abnormal surges of the surface temperature.
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