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Global Modeling of Secondary Organic Aerosol Formation from Aromatic Hydrocarbons: High- vs. Low-Yield Pathways

Henze, D. K.; Seinfeld, J. H.; Ng, N. L.; Kroll, J. H.; Fu, Tian-Ming; Jacob, Daniel J.; Heald, C. L. (European Geosciences Union, 2008)

Formation of SOA from the aromatic species toluene, xylene, and, for the first time, benzene, is added to a global chemical transport model. A simple mechanism is presented that accounts for competition between low and ...

Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer

Soerensen, Anne L.; Skov, Henrik; Jacob, Daniel J.; Soerensen, Britt T.; Johnson, Matthew S. (American Chemical Society (ACS), 2010)

Gaseous elemental mercury (GEM) and reactive gaseous mercury (RGM) were measured during an eight month circumnavigation to obtain knowledge of their worldwide distributions in the marine boundary layer (MBL). Background ...

Impact of 2000–2050 Climate Change on Fine Particulate Matter (PM2.5) Air Quality Inferred from a Multi-Model Analysis of Meteorological Modes

Tai, A. P. K.; Mickley, Loretta J.; Jacob, Daniel J. (European Geosciences Union, 2012)

Studies of the effect of climate change on fine particulate matter (PM2.5) air quality using general circulation models (GCMs) show inconsistent results including in the sign of the effect. This reflects uncertainty in the ...

Nitrogen Deposition to the United States: Distribution, Sources, and Processes

Zhang, Lin; Jacob, Daniel J.; Knipping, E. M.; Kumar, N.; Munger, J. William; Carouge, C. C.; van Donkelaar, A.; Wang, Y. X.; Chen, D. (European Geosciences Union, 2012)

We simulate nitrogen deposition over the US in 2006–2008 by using the GEOS-Chem global chemical transport model at 1/2°×2/3° horizontal resolution over North America and adjacent oceans. US emissions of NOx and NH3 in the ...

Climatic Effects of 1950-2050 Changes in US Anthropogenic Aerosols - Part 1: Aerosol Trends and Radiative Forcing

Leibensperger, E; Mickley, Loretta J.; Jacob, Daniel J.; Chen, W.-T.; Seinfeld, J. H.; Nenes, A.; Adams, P. J.; Streets, D. G.; Kumar, N.; Rind, D. (European Geosciences Union, 2012)

We calculate decadal aerosol direct and indirect (warm cloud) radiative forcings from US anthropogenic sources over the 1950–2050 period. Past and future aerosol distributions are constructed using GEOS-Chem and historical ...

Riverine source of Arctic Ocean mercury inferred from atmospheric observations

Fisher, Jenny Allison; Jacob, Daniel J.; Soerensen, Anne Laerke; Amos, Helen Marie; Steffen, Alexandra; Sunderland, Elsie M. (Springer Nature, 2012)

Methylmercury is a potent neurotoxin that accumulates in aquatic food webs. Human activities, including industry and mining, have increased inorganic mercury inputs to terrestrial and aquatic ecosystems. Methylation of ...

Tropospheric Bromine Chemistry: Implications for Present and Pre-Industrial Ozone and Mercury

Parrella, J. P.; Jacob, Daniel J.; Liang, Q.; Zhang, Y.; Mickley, Loretta J.; Miller, Benjamin Franklin; Evans, M. J.; Yang, X.; Pyle, J. A.; Theys, N.; Van Roozendael, M. (European Geosciences Union, 2012)

We present a new model for the global tropospheric chemistry of inorganic bromine (Bry) coupled to oxidant-aerosol chemistry in the GEOS-Chem chemical transport model (CTM). Sources of tropospheric Bry include debromination ...

Climatic Effects of 1950-2050 Changes in US Anthropogenic Aerosols - Part 2: Climate Response

Leibensperger, E; Mickley, Loretta J.; Jacob, Daniel J.; Chen, W.-T.; Seinfeld, J. H.; Nenes, A.; Adams, P. J.; Streets, D. G.; Kumar, N.; Rind, D. (European Geosciences Union, 2012)

We investigate the climate response to changing US anthropogenic aerosol sources over the 1950–2050 period by using the NASA GISS general circulation model (GCM) and comparing to observed US temperature trends. Time-dependent ...

The United States' Next Generation of Atmospheric Composition and Coastal Ecosystem Measurements: NASA's Geostationary Coastal and Air Pollution Events (GEO-CAPE) Mission

Fishman, J.; Iraci, L. T.; Al-Saadi, J.; Chance, Kelly V.; Chavez, F.; Chin, M.; Coble, P.; Davis, C.; DiGiacomo, P. M.; Edwards, D.; Eldering, A.; Goes, J.; Herman, J.; Hu, C.; Jacob, Daniel J.; Jordan, C.; Kawa, S. R.; Key, R.; Liu, X.; Lohrenz, S.; Mannino, A.; Natraj, V.; Neil, D.; Neu, J.; Newchurch, M.; Pickering, K.; Salisbury, J.; Sosik, H.; Subramaniam, A.; Tzortziou, M.; Wang, J.; Wang, M. (American Meteorological Society, 2012)

The Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission was recommended by the National Research Council's (NRC's) Earth Science Decadal Survey to measure tropospheric trace gases and aerosols and coastal ...

Source Attribution and Interannual Variability of Arctic Pollution in Spring Constrained by Aircraft (ARCTAS, ARCPAC) and Satellite (AIRS) Observations of Carbon Monoxide

Fisher, J. A.; Jacob, Daniel J.; Purdy, M. T.; Kopacz, M.; Le Sager, P; Carouge, C.; Holmes, C. D.; Yantosca, Robert M.; Batchelor, R. L.; Strong, K.; Diskin, G. S.; Fuelberg, H. E.; Holloway, J. S.; Hyer, E. J.; McMillan, W. W.; Warner, J.; Streets, D. G.; Zhang, Q.; Wang, Y.; Wu, S. (European Geosciences Union, 2010)

We use aircraft observations of carbon monoxide (CO) from the NASA ARCTAS and NOAA ARCPAC campaigns in April 2008 together with multiyear (2003–2008) CO satellite data from the AIRS instrument and a global chemical transport ...

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