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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 - #307442 |
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Title:
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Exploring Spatial and Temporal Characteristics of Atmospheric Ozone Concentration Using Visualization
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Author(s):
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Sudeshna Paul*+ and Souleymane Fall and Devdutta Niyogi and Bruce A. Craig
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Companies:
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Purdue University and Purdue University and Purdue University and Purdue University
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Address:
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150 N. University Street, West Lafayette, IN, 47907,
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Keywords:
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global warming ; ozone ; stratosphere ; correlation ; depletion
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Abstract:
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In this work, we investigate NASA Langley Research Center datasets containing primarily monthly geographic and atmospheric measures on a coarse grid covering Central America. Time series analysis was performed to check and adjust for serial correlation and identify important trends in atmospheric ozone concentration. Relationships between ozone and higher atmospheric temperature, pressure, and cloud cover were analyzed. Visualization techniques using ArcGIS and R showed there might be a relationship between ozone depletion and warming of the near-surface atmosphere, also known as "global warming." Additional data obtained from NASA showed indication of cooling of the upper stratosphere, which results in further ozone depletion.
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