'Isoprene emissions' diaporamas de présentation

Terrestrial and marine emissions of isoprene

Terrestrial and marine emissions of isoprene. Paul Palmer Division of Engineering and Applied Sciences, Harvard University. http://www.people.fas.harvard.edu/~ppalmer. hv. O 3. NO 2. NO. OH. HO 2. HC+OH ? HCHO + products. NOx, HC, CO.

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Organic Carbon in the Troposphere

Organic Carbon in the Troposphere. Colette L. Heald* (heald@atmos.colostate.edu ). *With acknowledgements to many people at the end!. NOAA Seminar June 11, 2008. CARBON IN THE ATMOSPHERE. CO 2 (820 PgC). Organic Carbon (~10s TgC). +. CO (150 TgC). CH 4 (4 PgC).

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Iterations on LPJ surface fluxes Bremen April 6-7, 2009

Iterations on LPJ surface fluxes Bremen April 6-7, 2009. Isoprene Emissions H 2 uptake N 2 O fluxes SPITFIRE v2. Pru Foster Colin Prentice Lei Lei Dong Rita Wania Renato Spahni Catherine Morphopoulos.

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Background Ozone in Surface Air over the United States: Variability, Climate Linkages,

Background Ozone in Surface Air over the United States: Variability, Climate Linkages, and Policy Implications. Arlene M. Fiore Department of Environmental Sciences Seminar Rutgers University March 4, 2005. Acknowledgments. Drew Purves Steve Pacala Jason West. Larry Horowitz

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Organic Carbon in the Troposphere: How much is there and can we predict the future?

Organic Carbon in the Troposphere: How much is there and can we predict the future?. Colette L. Heald* (heald@atmos.colostate.edu ). *With acknowledgements to many people at the end!. NCAR Seminar May 19, 2008. TOPICS FOR TODAY.

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Uncertainties in isoprene-NO x -O 3 chemistry: Implications for surface ozone over the

Uncertainties in isoprene-NO x -O 3 chemistry: Implications for surface ozone over the eastern United States. + NO x  O 3. ISOPRENE. PAR. TEMP. Leaf Area. Arlene M. Fiore Telluride Atmospheric Chemistry Workshop August 11, 2004. Sweetgum Invasion of Pine plantations.

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Sensitivity of continental boundary layer chemistry to a new isoprene oxidation mechanism

Sensitivity of continental boundary layer chemistry to a new isoprene oxidation mechanism. Jingqiu Mao (Harvard), Fabien Paulot (Caltech), Daniel Jacob (Harvard), Paul Wennberg (Caltech), Ronald Cohen (UC Berkeley). and funding from NASA ACMAP.

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Satellite Observations of Tropospheric Composition: Current and Future Research

Satellite Observations of Tropospheric Composition: Current and Future Research. Paul Palmer, University of Leeds www.env.leeds.ac.uk/~pip. Model values for preindustrial ozone. }. European mountain-top observations [Marenco et al., 1994]. Ozone exceedances of 90 ppbv, summer 2003 (#days).

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Sensitivity of U.S. Surface Ozone to Isoprene Emissions & Chemistry: An Application of the 1°x1 °

Sensitivity of U.S. Surface Ozone to Isoprene Emissions & Chemistry: An Application of the 1°x1 ° North American Nested GEOS-CHEM Model (v. 5-07-08). Arlene Fiore, Larry Horowitz, Drew Purves, Hiram Levy II, Mathew Evans, Yuxuan Wang, Qinbin Li and Bob Yantosca. GEOS-CHEM Meeting

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LPJ Status report

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Isoprene emissions in Africa inferred from OMI HCHO

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Michael Barkley & Paul Palmer, University of Edinburgh, UK

Regulated large-scale annual shutdown of Amazonian isoprene emissions? New insight provided by satellite observations of formaldehyde (HCHO) and of vegetation. Michael Barkley & Paul Palmer, University of Edinburgh, UK Isabelle De Smedt & Michel van Roozendael, BIRA-IASB, Belguim

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SATELLITE OBSERVATIONS OF OZONE PRECURSORS FROM GOME

SATELLITE OBSERVATIONS OF OZONE PRECURSORS FROM GOME. Kelly Chance, Thomas Kurosu Harvard-Smithsonian Center for Astrophysics. Randall Martin, Daniel Jacob, Paul Palmer, Qinbin Li Harvard University. SURFACE OZONE ENHANCEMENTS CAUSED BY ANTHROPOGENIC EMISSIONS FROM DIFFERENT CONTINENTS.

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Biogenic Emissions of Organics: Global Budgets and Implications

Biogenic Emissions of Organics: Global Budgets and Implications. Colette L. Heald Russ Monson, Mick Wilkinson, Clement Alo, Guiling Wang, Alex Guenther Scot Martin, Qi Chen, Jose Jimenez, Delphine Farmer. IGAC Conference, Annecy, France September 11, 2008.

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Global Linkages Between Vegetation, Atmospheric Composition and Climate

Global Linkages Between Vegetation, Atmospheric Composition and Climate. Colette L. Heald Acknowledgements:

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Using OMI HCHO observations as a constraint on isoprene emissions over Africa

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1. Distribution of HCHO Over North America

Major sources of model uncertainty in the AMF calculation are the shape factor, aerosols, clouds, and the surface albedo. We assess the effects of each of these individually using sensitivity calculations.

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6. Conclusions

Uncertainty in isoprene and most oxidation products dominated by emission uncertainties. Base case. How large is the isoprene nitrate contribution to S ANs?. Observations. Model BASE8%. Model 12%OHs. Ratio of S non-isoprene nitrates to total S ANs. S ANs most sensitive

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Evidence for significant C-5 alkene emissions from car traffic

WS/WD. aspirated T/RH. Evidence for significant C-5 alkene emissions from car traffic Gunnar W. Schade , and Changhyoun Park Atmospheric Sciences, Texas A&M University, 3150 TAMU, College Station gws @geos.tamu.edu. Tower. PAR pyranometer. N. net radiation. Sonic. Summary

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THE MODEL F=D ? ? ( Guenther et al. (1995) ) F: Foliar emissions (?g-C m -2 h -1 ) **

BIOGENIC VOC EMISSIONS ESTIMATION BY USING THE GLOBAL LAND COVER CHARACTERISTICS DATABASE Ozan Devrim Yay Anadolu University, Dept. Of Environmental Engineering, Turkey.

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