Simulating the impacts of Large Scale Insect- and Disease- Driven Tree Mortality on atmospheric chemistry Colette Heald, Sam Silva Department of Civil & Environmental Engineering Massachusetts Institute of Technol ffrey Geddes , Randall Martin Department of Physics & Atmospheric Science Dalhousie University, Canada Fall Meeting 2015 Abstract A41R-07 [email protected]
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Simulating the impacts of Large Scale Insect- and Disease- Driven Tree Mortality on atmospheric chemistry Colette Heald, Sam Silva Department of Civil.
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Simulating the impacts of
Large Scale Insect- and Disease- Driven Tree Mortality
on atmospheric chemistry
Colette Heald, Sam SilvaDepartment of Civil &
Environmental EngineeringMassachusetts Institute of Technology
Jeffrey Geddes, Randall MartinDepartment of Physics & Atmospheric Science
Highest impacts (~25%) in terpene-dominated regions
Total OA decreases by 5-10% across large areas of
south, eastern, and northwestern U.S.
Conclusions & Future Considerations
Large local impacts on atmospheric chemistry due to projected tree mortality
Temporal dimension of insect attack and post-
disturbance succession?
Insect - Fire - Climate Interactions?
Geddes JA, Heald CL, Silva SJ and Martin RV (2015) Land cover change impacts on atmospheric chemistry: Simulating projected large-scale tree mortality in the US,
Atmos. Chem. Phys. Discuss., 15, 29303-29345.
Conclusions & Future Considerations
Large local impacts on atmospheric chemistry due to projected tree mortality
Must consider land cover change in regional chemistry and climate predictions
Temporal dimension of insect attack and post-
disturbance succession?
Insect - Fire - Climate Interactions?
Current and future oil palm expansion:
Sam SilvaA43G-0392 13:40
O3 (ppb)
Acknowledgements
…and Thanks for your attention
A41R: Tropospheric Chemistry-Climate-Biosphere InteractionsConveners, Chairs, and PresentersFunding:Natural Sciences and Engineering Research Council of Canadaand the NSERC CREATE IACPES ProgramNational Science Foundation (AFC-1238109)