Atmospheric Aerosols in Amazonia and land use change: from natural biogenic to biomass burning conditions

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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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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

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Definitions

• Aerosol Optical Depth
• Black Carbon
• Single Scattering Albedo
• Net Ecosystem
• Exchange (NEE)

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TT34 (Central Amazon)
PVH (Southern Amazon)
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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?

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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
WHY DIFFERENT?
PVH SITE
TT34 SITE
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Median Scattering Absorption Coefficients
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550 nm
 
 
637 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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Drought of 2010

• https//www.youtube.com/watch?vmLNTJYXl9Fg

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What Have We Learned

• Complexity of the Problem
• Land Use Change has Altered Multiple Systems
• Insights from an Interdisciplinary Approach

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Why Should We Care?
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Questions?

• It is difficult to get a man to understand
  something, when his salary depends upon his not
  understanding it! Upton Sinclair

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Aerosol Size Distributions
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TT34
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PVH
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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.