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Atmospheric Aerosols in Amazonia and land use change: from natural biogenic to biomass burning conditions Keith Heidecorn Graduate Seminar in Atmospheric Sciences April 7, 2014
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1. Learn Something New 2. Observe the Effect of the Dry & Wet Season on Land Types 3. Gain Insight into how Aerosols Effect more than just the Atmosphere Goals
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Aerosol Optical Depth Black Carbon Single Scattering Albedo Net Ecosystem Exchange (NEE) Definitions
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TT34 (Central Amazon)PVH (Southern Amazon)
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Wet Season is from January to June Dry Season is from July to December Which Season would you expect more Land Use Change? Wet vs. Dry Season
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Deforestation
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Instrumentation TSI-3080 SMPS TSI CPC MODEL 3010 MODIS SATELLITE
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Mass Concentrations of the Sites Why?
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Black Carbon
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Median Aerosol Number Size Distributions DOES SIZE MATTER?YES
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Submicron Non Refractory Aerosol Composition PVH SITE TT34 SITE WHY DIFFERENT?
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Median Scattering & Absorption Coefficients
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550 nm 637 nm WET DRY
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Aerosol Optical Depths (AOD) ARE THE PEAKS DURING THE DRY OR WET SEASON? DRY
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Monthly Ozone
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Daily Ozone
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Carbon Monoxide
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Net Ecosystem Exchange (NEE)
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https:// www.y outube.com/w atch?v= mLNTJ YXl9Fg Drought of 2010
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Complexity of the Problem Land Use Change has Altered Multiple Systems Insights from an Interdisciplinary Approach What Have We Learned
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Why Should We Care?
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It is difficult to get a man to understand something, when his salary depends upon his not understanding it! –Upton Sinclair Questions?
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Aerosol Size Distributions
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TT34
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PVH
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Artaxo, P., L. V. Rizzo, J. F. Brito, H. M. J. Barbosa, A. Arana, E. T. Sena, G. G. Cirino, W. Bastos, S. T. Martin, and M. O. Andreae, 2013, Atmospheric aerosols in Amazonia and land use change: from natural biogenic to biomass burning conditions: Faraday Discussions, v. 165, p. 203-235. Africa. Map. Google Earth. Google, 05 April 2014. Web. 05 April 2014. Chambers, Jeffrey. "Jeffrey Chambers' Lab Page." Jeffrey Chambers' Lab Page. N.p., n.d. Web. 04 Apr. 2014. "The Water Cycle : Feature Articles." The Water Cycle : Feature Articles. NASA Earth Observatory, n.d. Web. 05 Apr. 2014. "United Kingdom Chemistry and Aerosols (UKCA) Model." Met Office. N.p., n.d. Web. 06 Apr. 2014. References
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