Is the Amazonian Rainforest a Sitting Duck for Climate Change?

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Is the Amazonian Rainforest a Sitting Duck for
Climate Change?
A.D. Nobre, INPA II Conferencia Regional sobre
Mudanças Globais América do Sul Mesa Redonda
Modelagem do Clima e Evolução dos
Ecossistemas 6-10 novembro 2005, São Paulo
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Surface heating in the equatorial zone produces
intense evaporation and consequent upwelling of
air
Diagram source internet material
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Corresponding and connected movement produces
subsidence of air on mid-latitudes
Diagram source internet material
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The connection of these vertical movements, lead
to Hadley circulation
Diagram source internet material
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Paleoclimates and Vegetation Proxies in the Mega
fauna
giraffes
elephant
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Wildebeest in the Serengeti
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In the Americas, the bison of the North never
made the cross to the South
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Photo Credit Antonio D Nobre
Paleoclimates evidences of continued rainfall
(Baker et al 2001)
Faunal evidences of less extensive savannas in
South America (Vivo Carmignotto 2004 )
Biological evidences of connection between
Atlantic and Amazon forests (Costa 2003 )
Orbital and cosmic effects on climate
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Photo Credit Ricardo Oliveira
THE (OBLIVIOUS) HUMAN INTERFERENCE
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RAINFALL MECHANISM IN A DISTURBED RAINFOREST
DIRTY ATMOSPHERE
Lets assume for now that Global Change will not
strike here
Diagram by Antonio D Nobre
Photo Credit Andrea, Artaxo et al. LBA Smocc
Experiment
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RAINFALL MECHANISM IN A DISTURBED RAINFOREST
DIRTY ATMOSPHERE
Soot Dust
Photo Credit Andrea, Artaxo et al. LBA Smocc
Experiment
Diagram by Antonio D Nobre
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RAINFALL MECHANISM IN A DISTURBED RAINFOREST
DIRTY ATMOSPHERE
Smoky Dissipative Clouds
Dry Season or Drought
COLD Towering Clouds
Soot Dust
Suppression of Rainfall
Diagram by Antonio D Nobre
based on results of ABRACOS project 2000 and LBA
Andrea et al. Science, others
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10/August/05 Modis Terra
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18/Septembre/05 Modis Aqua
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Slide by F.Brown C. Salimon
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RAINFALL MECHANISM IN A DISTURBED RAINFOREST
DIRTY ATMOSPHERE
Wetter
COLD Towering Clouds
Soot Dust
Destructive Thunderstorms
Diagram by Antonio D Nobre
based on results of ABRACOS project 2000 and LBA
Andrea et al. Science, others
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DISRUPTING THE INLAND TRANSPORT OF MOISTURE
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2005 Amazonian Drought
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