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Impact of Land Use Change on Atmospheric Aerosols in Amazonia

This seminar explores the effects of land use change on atmospheric aerosols in the Amazon region, particularly during the dry and wet seasons. It examines different measurement techniques and data to understand the composition and optical properties of aerosols. The seminar also discusses the implications of these findings and the importance of studying aerosols in the context of land use change.

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Impact of Land Use Change on Atmospheric Aerosols in Amazonia

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  1. 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

  2. Goals 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

  3. Definitions Aerosol Optical Depth Black Carbon Single Scattering Albedo Net Ecosystem Exchange (NEE)

  4. TT34 (Central Amazon) PVH (Southern Amazon)

  5. Wet vs. Dry Season Wet Season is from January to June Dry Season is from July to December Which Season would you expect more Land Use Change?

  6. Deforestation

  7. Instrumentation TSI-3080 SMPS MODIS SATELLITE TSI CPC MODEL 3010

  8. Mass Concentrations of the Sites Why?

  9. Black Carbon

  10. Median Aerosol Number Size Distributions DOES SIZE MATTER? YES

  11. Submicron Non Refractory Aerosol Composition WHY DIFFERENT? PVH SITE TT34 SITE

  12. Median Scattering & Absorption Coefficients

  13. 550 nm 637 nm 637 nm DRY WET

  14. Aerosol Optical Depths (AOD) ARE THE PEAKS DURING THE DRY OR WET SEASON? DRY

  15. Monthly Ozone

  16. Daily Ozone

  17. Carbon Monoxide

  18. Net Ecosystem Exchange (NEE)

  19. Drought of 2010 https://www.youtube.com/watch?v=mLNTJYXl9Fg

  20. What Have We Learned Complexity of the Problem Land Use Change has Altered Multiple Systems Insights from an Interdisciplinary Approach

  21. Why Should We Care?

  22. Questions? “It is difficult to get a man to understand something, when his salary depends upon his not understanding it!” –Upton Sinclair

  23. Aerosol Size Distributions

  24. TT34

  25. PVH

  26. References 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.

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