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Social and Behavioral Sciences Commons™
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Articles 1 - 4 of 4
Full-Text Articles in Social and Behavioral Sciences
Sources Of Carbonaceous Aerosols And Deposited Black Carbon In The Arctic In Winter-Spring: Implications For Radiative Forcing, Q Wang, D J. Jacob, J A. Fisher, J Mao, E M. Leibensperger, C C. Carouge, P Le Sager, Y Kondo, J L. Jimenez, M J. Cubison, S J. Doherty
Sources Of Carbonaceous Aerosols And Deposited Black Carbon In The Arctic In Winter-Spring: Implications For Radiative Forcing, Q Wang, D J. Jacob, J A. Fisher, J Mao, E M. Leibensperger, C C. Carouge, P Le Sager, Y Kondo, J L. Jimenez, M J. Cubison, S J. Doherty
Faculty of Science - Papers (Archive)
We use a global chemical transport model (GEOS-Chem CTM) to interpret observations of black carbon (BC) and organic aerosol (OA) from the NASA ARCTAS aircraft campaign over the North American Arctic in April 2008, as well as longer-term records in surface air and in snow (2007-2009). BC emission inventories for North America, Europe, and Asia in the model are tested by comparison with surface air observations over these source regions. Russian open fires were the dominant source of OA in the Arctic troposphere during ARCTAS but we find that BC was of prevailingly anthropogenic (fossil fuel and biofuel) origin, particularly …
Sources, Distribution, And Acidity Of Sulfate-Ammonium Aerosol In The Arctic In Winter-Spring, Jenny A. Fisher, Daniel J. Jacob, Q Wang, Roya Bahreini, C C. Carouge, M J. Cubison, Jack E. Dibb, Thomas Diehl, J L. Jimenez, E M. Leibensperger, Zifeng Lu, Marcel B.J Meinders, H. O T. Pye, Patricia K. Quinn, Sangeeta Sharma, David G. Streets, Aaron Van Donkelaar, R M. Yantosca
Sources, Distribution, And Acidity Of Sulfate-Ammonium Aerosol In The Arctic In Winter-Spring, Jenny A. Fisher, Daniel J. Jacob, Q Wang, Roya Bahreini, C C. Carouge, M J. Cubison, Jack E. Dibb, Thomas Diehl, J L. Jimenez, E M. Leibensperger, Zifeng Lu, Marcel B.J Meinders, H. O T. Pye, Patricia K. Quinn, Sangeeta Sharma, David G. Streets, Aaron Van Donkelaar, R M. Yantosca
Faculty of Science - Papers (Archive)
We use GEOS-Chem chemical transport model simulations of sulfate–ammonium aerosol data from the NASA ARCTAS and NOAA ARCPAC aircraft campaigns in the North American Arctic in April 2008, together with longer-term data from surface sites, to better understand aerosol sources in the Arctic in winter–spring and the implications for aerosol acidity. Arctic pollution is dominated by transport from mid-latitudes, and we test the relevant ammonia and sulfur dioxide emission inventories in the model by comparison with wet deposition flux data over the source continents. We find that a complicated mix of natural and anthropogenic sources with different vertical signatures is …
Towards Space Based Verification Of Co2 Emissions From Strong Localized Sources: Fossil Fuel Power Plant Emissions As Seen By A Carbonsat Constellation, Voltaire A. Velazco, M Buchwitz, H Bovensmann, M Reuter, O Schneising, J P. Heymann, T Krings, K Gerilowski, John P. Burrows
Towards Space Based Verification Of Co2 Emissions From Strong Localized Sources: Fossil Fuel Power Plant Emissions As Seen By A Carbonsat Constellation, Voltaire A. Velazco, M Buchwitz, H Bovensmann, M Reuter, O Schneising, J P. Heymann, T Krings, K Gerilowski, John P. Burrows
Faculty of Science - Papers (Archive)
No abstract provided.
Importance Of Secondary Sources In The Atmospheric Budgets Of Formic And Acetic Acids, Fabien Paulot, Debra Wunch, John D. Crounse, G C. Toon, Dylan B. Millet, Peter F. Decarlo, C Vigouroux, Nicholas M. Deutscher, G Gonzalez Abad, Justus Notholt, Thorsten Warneke, J Hannigan, Carsten Warneke, Joost A. De Gouw, Edward Dunlea, M De Maziere, David W. Griffith, P Bernath, J L. Jimenez, Paul O. Wennberg
Importance Of Secondary Sources In The Atmospheric Budgets Of Formic And Acetic Acids, Fabien Paulot, Debra Wunch, John D. Crounse, G C. Toon, Dylan B. Millet, Peter F. Decarlo, C Vigouroux, Nicholas M. Deutscher, G Gonzalez Abad, Justus Notholt, Thorsten Warneke, J Hannigan, Carsten Warneke, Joost A. De Gouw, Edward Dunlea, M De Maziere, David W. Griffith, P Bernath, J L. Jimenez, Paul O. Wennberg
Faculty of Science - Papers (Archive)
We present a detailed budget of formic and acetic acids, two of the most abundant trace gases in the atmosphere. Our bottom-up estimate of the global source of formic and acetic acids are ~1200 and ~1400 Gmol yr−1, dominated by photochemical oxidation of biogenic volatile organic compounds, in particular isoprene. Their sinks are dominated by wet and dry deposition. We use the GEOS-Chem chemical transport model to evaluate this budget against an extensive suite of measurements from ground, ship and satellite-based Fourier transform spectrometers, as well as from several aircraft campaigns over North America. The model captures the seasonality of …