John H. Seinfeld

On the link between ocean biota emissions, aerosol, and maritime clouds: Airborne, ground, and satellite measurements off the coast of California (2009)

Sorooshian, Armin, Padró, Luz T., Nenes, Athanasios, Feingold, Graham, McComiskey, Allison, Hersey, Scott P., ...

Surface, airborne, and satellite measurements over the eastern Pacific Ocean off the coast of California during the period between 2005 and 2007 are used to explore the relationship between ocean...

Observations of marine stratocumulus microphysics and implications for processes controlling droplet spectra: Results from the Marine Stratus/Stratocumulus Experiment (2009)

Wang, Jian, Daum, Peter H., Yum, Seong Soo, Liu, Yangang, Senum, Gunnar I., Lu, Miao-Ling, ...

During the Marine Stratus/Stratocumulus Experiment, cloud and aerosol microphysics were measured in the eastern Pacific off the coast of northern California on board Department of Energy Gulfstream-1...

Terpenylic Acid and Related Compounds from the Oxidation of α-Pinene: Implications for New Particle Formation and Growth above Forests (2009)

Claeys, Magda, Iinuma, Yoshiteru, Szmigielski, Rafal, Surratt, Jason D., Blockhuys, Frank, Van Alsenoy, Christian, ...

Novel secondary organic aerosol (SOA) products from the monoterpene α-pinene with unique dimer-forming properties have been identified as lactone-containing terpenoic acids, i.e., terpenylic and...

Biogenic secondary organic aerosol over the United States: Comparison of climatological simulations with observations (2009)

Hong Liao, Daven K. Henze, John H. Seinfeld, Shiliang Wu, Loretta J. Mickley

*To whom correspondence should be sent. 1 Abstract. Understanding the effects of global climate change on regional air quality is central in future air quality planning. We report here on the use of...

tropospheric ozone and aerosols (2009)

Hong Liao, Wei-ting Chen, John H. Seinfeld

[1] A unified tropospheric chemistry-aerosol model within the Goddard Institute for Space Studies general circulation model II 0 is applied to simulate an equilibrium CO2forced climate in the year...

Unexpected Epoxide Formation in the Gas-Phase Photooxidation of Isoprene (2009)

Paulot, Fabien, Crounse, John D., Kjaergaard, Henrik G., Kuerten, Adreas, St. Clair, Jason M., Seinfeld, John H., ...

Emissions of nonmethane hydrocarbon compounds to the atmosphere from the biosphere exceed those from anthropogenic activity. Isoprene, a five-carbon diene, contributes more than 40% of these...

Cloud condensation nuclei activity, closure, and droplet growth kinetics of Houston aerosol during the Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) (2009)

Lance, Sara, Nenes, Athanasios, Mazzoleni, Claudio, Dubey, Manvendra K., Gates, Harmony, Varutbangkul, Varuntida, ...

In situ cloud condensation nuclei (CCN) measurements were obtained in the boundary layer over Houston, Texas, during the 2006 Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS)...

Photooxidation of 2-methyl-3-buten-2-ol (MBO) as a potential source of secondary organic aerosol (2009)

Chan, Arthur W. H., Galloway, Melissa M., Kwan, Allan J., Chhabra, Puneet S., Keutsch, Frank N., Wennberg, Paul O., ...

2-Methyl-3-buten-2-ol (MBO) is an important biogenic hydrocarbon emitted in large quantities by pine forests. Atmospheric photooxidation of MBO is known to lead to oxygenated compounds, such as...

Comprehensive Simultaneous Shipboard and Airborne Characterization of Exhaust from a Modern Container Ship at Sea (2009)

Murphy, Shane M., Agrawal, Harshit, Sorooshian, Armin, Padró, Luz T., Gates, Harmony, Hersey, Scott, ...

We report the first joint shipboard and airborne study focused on the chemical composition and water-uptake behavior of particulate ship emissions. The study focuses on emissions from the main...

Effect of chemistry-aerosol-climate coupling on predictions of future climate and future levels of tropospheric ozone and aerosols (2009)

Liao, Hong, Zhang, Ying, Chen, Wei-Ting, Raes, Frank, Seinfeld, John H.

We explore the extent to which chemistry-aerosol-climate coupling influences predictions of future ozone and aerosols as well as future climate using the Goddard Institute for Space Studies (GISS)...

Paragon : a systematic, integrated approach to aerosol observation and modeling (2009)

Diner, David J., Kahn, Ralph A., Braverman, Amy J., Davies, Roger, Martonchik, John V., Menzies, Robert T., ...

Aerosols are generated and transformed by myriad processes operating across many spatial and temporal scales. Evaluation of climate models and their sensitivity to changes, such as in greenhouse gas...

Apportionment of primary and secondary organic aerosols in Southern California during the 2005 Study of Organic Aerosols in Riverside (SOAR-1) (2008)

Docherty, Kenneth S., Stone, Elizabeth A., Ulbrich, Ingrid M., DeCarlo, Peter F., Snyder, David C., Schauer, James J., ...

Ambient sampling was conducted in Riverside, California during the 2005 Study of Organic Aerosols in Riverside to characterize the composition and sources of organic aerosol using a variety of...

Organosulfate Formation in Biogenic Secondary Organic Aerosol (2008)

Surratt, Jason D., Gómez-González, Yadlan, Chan, Arthur W. H., Vermeylen, Reinhilde, Shahgholi, Mona, Kleindienst, Tadeusz E., ...

Organosulfates of isoprene, α-pinene, and β-pinene have recently been identified in both laboratory-generated and ambient secondary organic aerosol (SOA). In this study, the mechanism and ubiquity...

Scientific Objectives, measurement needs, and challenges motivating the PARAGON Aerosol Initiative (2008)

Seinfeld, John H., Kahn, Ralph A., Anderson, Theodore L., Charlson, Robert J., Davies, Roger, Diner, David J., ...

A systematic, comprehensive aerosol research framework needs to replace the current, fragmented approach. The Progressive Aerosol Retrieval and Assimilation Global Observing Network (PARAGON) concept...

Scientific objectives, measurement needs, and challenges motivating the PARAGON aerosol initiative (2008)

Seinfeld, John H., Kahn, Ralph A., Anderson, Theodore L., Charlson, Robert J., Davies, Roger, Ogren, John A., ...

Aerosols are involved in a complex set of processes that operate across many spatial and temporal scales. Understanding these processes, and ensuring their accurate representation in models of...

The Adjoint of CMAQ (2008)

Amir Hakami, Daven K. Henze, John H. Seinfeld, Kumaresh Singh, Adrian Sandu, Soontae Kim, ...

ABSTRACT. An adjoint model for the internationally used Community Multiscale Air Quality (CMAQ) modeling platform of the U.S. EPA is developed. The adjoint version for CMAQ (CMAQ-ADJ) provides the...

a (2008)

Hong Liao, John H. Seinfeld, Peter J. Adams, Loretta J. Mickley

radiative forcing of coupled tropospheric ozone and aerosols in

general (2008)

Hong Liao, Peter J. Adams, Serena H. Chung, John H. Seinfeld, Loretta J. Mickley, Daniel J. Jacob

between tropospheric chemistry and aerosols in a unified

current (2008)

Colette L. Heald, Daniel J. Jacob, Rokjin J. Park, Lynn M. Russell, Barry J. Huebert, John H. Seinfeld, ...

large organic aerosol source in the free troposphere missing from

Click Here for Full Article Concentrations and sources of organic carbon aerosols in the free troposphere over North America (2008)

Colette L. Heald, Daniel J. Jacob, Solène Turquety, Rynda C. Hudman, Rodney J. Weber, Amy P. Sullivan, ...

[1] Aircraft measurements of water-soluble organic carbon (WSOC) aerosol over NE North America during summer 2004 (ITCT-2K4) are simulated with a global chemical transport model (GEOS-Chem) to test...

PARAGON An Integrated Approach for Characterizing Aerosol Climate Impacts and Environmental Interactions (2008)

Erosols Are Airborne, J. Diner, Thomas P. Ackerman, Theodore L. Anderson, Jens Bösenberg, Amy J. Braverman, ...

This paper provides an overview of the PARAGON strategy. Supporting details are contained in a set of four companion papers, the contents of which are summarized below. Seinfeld et al. (2004) discuss...

Click Here for Full Article Biogenic secondary organic aerosol over the United States: Comparison of climatological simulations with observations (2007)

Hong Liao, Daven K. Henze, John H. Seinfeld, Shiliang Wu, Loretta J. Mickley

[1] Understanding the effects of global climate change on regional air quality is central in future air quality planning. We report here on the use of the Goddard Institute for Space Studies (GISS)...

Global Secondary Organic Aerosol from Isoprene Oxidation, Geophys (2006)

Daven K. Henze, John H. Seinfeld

[1] Inclusion of isoprene as a source of secondary organic aerosol (SOA) in a global model increases the global burden of SOA from all sources by more than a factor of two. The isoprene source...

Study of the Aerosol Indirect Effect by Large-Eddy Simulation of Marine Stratocumulus (2005)

Lu, Miao-Ling, Seinfeld, John H.

A total of 98 three-dimensional large-eddy simulations (LESs) of marine stratocumulus clouds covering both nighttime and daytime conditions were performed to explore the response of cloud optical...

Aerosol Data Sources and Their Roles within PARAGON (2004)

Kahn, Ralph A., Ogren, John A., Ackerman, Thomas P., Bösenberg, Jens, Charlson, Robert J., Diner, David J., ...

We briefly but systematically review major sources of aerosol data, emphasizing suites of measurements that seem most likely to contribute to assessments of global aerosol climate forcing. The...

ACE-ASIA - Regional climatic and atmospheric chemical effects of Asian dust and pollution (2004)

Seinfeld, John H., Carmichael, Gregory R., Arimoto, Richard, Conant, William C., Brechtel, Frederick J., Bates, Timothy S., ...

Although continental-scale plumes of Asian dust and pollution reduce the amount of solar radiation reaching the earth's surface and perturb the chemistry of the atmosphere, our ability to quantify...

Organic atmospheric particulate material (2003)

Seinfeld, John H., Pankow, John F.

Carbonaceous compounds comprise a substantial fraction of atmospheric particulate matter (PM). Particulate organic material can be emitted directly into the atmosphere or formed in the atmosphere...

Analysis of Humidity Halos around Trade Wind Cumulus Clouds (2003)

Lu, Miao-Ling, Wang, Jian, Freedman, Andrew, Jonsson, Haflidi H., Flagan, Richard C., McClatchey, Robert A., ...

Regions of enhanced humidity in the vicinity of cumulus clouds, so-called cloud halos, reflect features of cloud evolution, exert radiative effects, and may serve as a locus for new particle...

Cloud Halos: Numerical Simulation of Dynamical Structure and Radiative Impact (2002)

Lu, Miao-Ling, McClatchey, Robert A., Seinfeld, John H.

Significant enhancements in humidity around cumulus clouds, that is, the “cloud halos” observed in many aircraft penetrations, are simulated using a three-dimensional dynamic model. Five case...

A case study of ships forming and not forming tracks in moderately polluted clouds (2000)

Noone, Kevin J., Öström, Elisabeth, Ferek, Ronald J., Garrett, Tim, Hobbs, Peter V., Johnson, Doug W., ...

The effects of anthropogenic particulate emissions from ships on the radiative, microphysical, and chemical properties of moderately polluted marine stratiform clouds are examined. A case study of...

Combustion organic aerosol as cloud condensation nuclei in ship tracks (2000)

Russell, Lynn M., Noone, Kevin J., Ferek, Ronald J., Pockalny, Robert A., Flagan, Richard C., Seinfeld, John H.

Polycyclic aromatic hydrocarbons (PAHs) have been sampled in marine stratiform clouds to identify the contribution of anthropogenic combustion emissions in activation of aerosol to cloud droplets....

A Case Study of Ship Track Formation in a Polluted Marine Boundary Layer (2000)

Noone, Kevin J., Johnson, Doug W., Taylor, Jonathan P., Ferek, Ronald J., Garrett, Tim, Hobbs, Peter V., ...

A case study of the effects of ship emissions on the microphysical, radiative, and chemical properties of polluted marine boundary layer clouds is presented. Two ship tracks are discussed in detail....

Aerosol-cloud interactions in global models of indirect aerosol radiative forcing (2000)

Nenes, Athanasios, Seinfeld, John H.

The sensitivity of cloud optical properties with respect to parameters that affect aerosol activation is examined. Of particular interest are the effect of volatile gases (such as HNO3), slightly...

Design of a CCN instrument for airborne measurement (2000)

Chuang, Patrick Y., Nenes, Athanasios, Smith, James N., Flagan, Richard C., Seinfeld, John H.

A new instrument for measuring cloud condensation nuclei (CCN) on board small aircraft is described. Small aircraft are attractive mainly because they are less costly, but they require instruments...

Prediction of bond dissociation energies and transition state barriers by a modified complete basis set model chemistry (1997)

Jungkamp, Tim P. W., Seinfeld, John H.

The complete basis set model chemistries CBS-4 and CBS-q were modified using density functional theory for the geometry optimization step of these methods. The accuracy of predicted bond dissociation...

Radially Classified Aerosol Detector for Aircraft-Based Submicron Aerosol Measurements (1996)

Russell, Lynn M., Zhang, Shou-Hua, Flagan, Richard C., Seinfeld, John H., Stolzenburg, Mark R., Caldow, Robert

A radially classified aerosol detector (RCAD) for fast characterization of fine particle size distributions aboard aircraft has been designed and implemented. The measurement system includes a radial...

Resonance structures in elastic and Raman scattering from microspheres (1991)

Chan, Chak K., Flagan, Richard C., Seinfeld, John H.

To study the interactions between Mie scattering and Raman emissions of spherical particles, we measured the Raman spectra together with the elastically scattered light of the excitation source of an...

Studies in binary nucleation: The dibutylphthalate/dioctylphthalate system (1988)

Okuyama, Kikuo, Kousaka, Yasuo, Kreidenweis, Sonia, Flagan, Richard C., Seinfeld, John H.

A continuous-flow mixing apparatus has been developed for the study of binary nucleation. This apparatus has been used to investigate the nucleation of mixed dibutylphthalate/dioctylphthalate vapors,...

Fundamentals of air pollution engineering (1988)

Flagan, Richard C., Seinfeld, John H.

Analysis and abatement of air pollution involve a variety of technical disciplines. Formation of the most prevalent pollutants occurs during the combustion process, a tightly coupled system involving...

Estimation of absolute and relative permeabilities in petroleum reservoirs (1987)

Lee, Tai-yong, Seinfeld, John H.

The estimation of absolute and relative permeabilities for petroleum reservoirs on the basis of noisy data at wells is considered. The spatially varying absolute permeability is estimated by...

Estimation of absolute and relative permeabilities in petroleum reservoirs (1987)

Lee, Tai-yong, Seinfeld, John H.

The estimation of absolute and relative permeabilities for petroleum reservoirs on the basis of noisy data at wells is considered. The spatially varying absolute permeability is estimated by...

Fourier transform infrared spectroscopy of a single aerosol particle (1987)

Sageev Grader, Gideon, Arnold, Stephen, Flagan, Richard C., Seinfeld, John H.

A method is developed for obtaining the molecular composition of a single suspended microparticle by Fourier transform infrared spectroscopy. The particle is held in an electrodynamic balance and...

Fourier transform infrared spectrometer for a single aerosol particle (1987)

Sageev Grader, Gideon, Flagan, Richard C., Seinfeld, John H., Arnold, Stephen

A spectrometer is reported here for obtaining the infrared spectrum of a single aqueous aerosol particle by a Fourier transform technique. The particle is held in an electrodynamic balance and...

Particle sizing in the electrodynamic balance (1986)

Sageev, Gideon, Seinfeld, John H., Flagan, Richard C.

We report a new technique for sizing particles in the electrodynamic balance. In this technique, the trajectory of a falling particle is followed with a photomultiplier tube. Particle velocities are...

Laser heating of an aqueous aerosol particle (1984)

Sageev, Gideon, Seinfeld, John H.

Approximate analytical and full numerical solutions are obtained for the transient response of both a pure water and solution droplets to both short- and long-time laser heating. The differences in...

Mathematical modeling of photochemical air pollution (1982)

McRae, Gregory J., Goodin, William R., Seinfeld, John H.

A particularly serious problem facing densely populated areas is the environmental degradation caused by the presence of photochemical air pollution. The problem is both pervasive and difficult to...

Stochastic sensitivity analysis in chemical kinetics (1981)

Costanza, Vicente, Seinfeld, John H.

The stochastic sensitivity analysis problem in chemical kinetics is defined as determining the probability density function (pdf) of the concentrations given probability density functions for the...

Numerico-empirical analyses of atmospheric diffusion theories (1975)

Lamb, Robert G., Chen, Wen H., Seinfeld, John H.

Numerico-empirical expressions for the particle displacement probability density function from which the mean concentration of material in turbulent fluid may be obtained are derived from the...