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    Academic Journals

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• Exploring dimethyl sulfide (DMS) oxidation and implications for global aerosol radiative forcing.

  Authors:Ka Ming Fung, Colette L. Heald, Jesse H. Kroll, Siyuan Wang, Duseong S. Jo, Andrew Gettelman, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 2) Peer-Reviewed

  Feb. 1, 2022451 words Article Aerosol indirect radiative forcing (IRF), which characterizes how aerosols alter cloud formation and properties, is very sensitive to the preindustrial (PI) aerosol burden. Dimethyl sulfide (DMS), emitted from the ocean,...

• A radical shift in air pollution: Fifty years ago, Levy identified hydroxyl radicals as the driver of chemistry in the troposphere.

  Authors:Colette L. Heald and Jesse H. KrollmFrom:Science (Vol. 374, Issue 6568) Peer-Reviewed

  Nov. 5, 20211,744 words Article 1470L

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• Land use change impacts on air quality and climate

  Authors:Colette L. Heald and Dominick V. SpracklenFrom:Chemical Reviews (Vol. 115, Issue 10) Peer-Reviewed

  May 27, 2015 Report

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• Impacts of current and projected oil palm plantation expansion on air quality over Southeast Asia

  Authors:Sam J. Silva, Colette L. Heald, Jeffrey A. Geddes, Kemen G. Austin, Prasad S. Kasibhatla, and Miriam E. MarlierFrom:Atmospheric Chemistry and Physics (Vol. 16, Issue 16) Peer-Reviewed

  Aug. 26, 2016311 words Brief article Over recent decades oil palm plantations have rapidly expanded across Southeast Asia (SEA). According to the United Nations, oil palm production in SEA increased by a factor of 3 from 1995 to 2010. We investigate the...

• Calibration and assessment of electrochemical air quality sensors by co-location with regulatory-grade instruments

  Authors:David H. Hagan, Gabriel Isaacman-VanWertz, Jonathan P. Franklin, Lisa M. M. Wallace, Benjamin D. Kocar, Colette L. Heald, et al.From:Atmospheric Measurement Techniques (Vol. 11, Issue 1) Peer-Reviewed

  Jan. 15, 201855 words Author abstract, Bri... Byline: David H. Hagan, Gabriel Isaacman-VanWertz, Jonathan P. Franklin, Lisa M. M. Wallace, Benjamin D. Kocar, Colette L. Heald, Jesse H. Kroll To access, purchase, authenticate, or subscribe to the full-text of this...

• How emissions uncertainty influences the distribution and radiative impacts of smoke from fires in North America

  Authors:Therese S. Carter, Colette L. Heald, Jose L. Jimenez, Pedro Campuzano-Jost, Yutaka Kondo, Nobuhiro Moteki, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 4) Peer-Reviewed

  Feb. 26, 2020509 words Brief article Fires and the aerosols that they emit impact air quality, health, and climate, but the abundance and properties of carbonaceous aerosol (both black carbon and organic carbon) from biomass burning (BB) remain uncertain...

• Mapping pollution exposure and chemistry during an extreme air quality event (the 2018 Kilauea eruption) using a low-cost sensor network.

  Authors:Ben Crawford, David H. Hagan, Ilene Grossman, Elizabeth Cole, Lacey Holland, Colette L. Heald, et al.From:Proceedings of the National Academy of Sciences of the United States (Vol. 118, Issue 27) Peer-Reviewed

  July 6, 20215,903 words Report 1620L

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• The mechanisms and meteorological drivers of the summertime ozone-temperature relationship.

  Authors:William C. Porter and Colette L. HealdFrom:Atmospheric Chemistry and PhysicsPeer-Reviewed

  Oct. 30, 2019335 words Report, Brief articl...

  Surface ozone (O.sub.3) pollution levels are strongly correlated with daytime surface temperatures, especially in highly polluted regions. This correlation is nonlinear and occurs through a variety of...

• Biogenic carbon and anthropogenic pollutants combine to form a cooling haze over the southeastern United States

  Authors:Allen H. Goldstein, Charles D. Koven, Colette L. Heald, and Inez Y. FungFrom:Proceedings of the National Academy of Sciences of the United States (Vol. 106, Issue 22) Peer-Reviewed

  June 2, 2009261 words Author abstract, Rep...

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• Evaluating model parameterizations of submicron aerosol scattering and absorption with in situ data from ARCTAS 2008

  Authors:Matthew J. Alvarado, Chantelle R. Lonsdale, Helen L. Macintyre, Huisheng Bian, Mian Chin, David A. Ridley, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 14) Peer-Reviewed

  July 29, 2016404 words Brief article Accurate modeling of the scattering and absorption of ultraviolet and visible radiation by aerosols is essential for accurate simulations of atmospheric chemistry and climate. Closure studies using in situ measurements...

• Exploring the observational constraints on the simulation of brown carbon

  Authors:Xuan Wang, Colette L. Heald, Jiumeng Liu, Rodney J. Weber, Pedro Campuzano-Jost, Jose L. Jimenez, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 2) Peer-Reviewed

  Jan. 19, 201855 words Brief article Byline: Xuan Wang, Colette L. Heald, Jiumeng Liu, Rodney J. Weber, Pedro Campuzano-Jost, Jose L. Jimenez, Joshua P. Schwarz, Anne E. Perring To access, purchase, authenticate, or subscribe to the full-text of this...

• The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone

  Authors:Colette L. Heald and Jeffrey A. GeddesFrom:Atmospheric Chemistry and Physics (Vol. 16, Issue 23) Peer-Reviewed

  Dec. 5, 2016243 words Brief article Anthropogenic land use change (LUC) since preindustrial (1850) has altered the vegetation distribution and density around the world. We use a global model (GEOS-Chem) to assess the attendant changes in surface air...

• Exploring the uncertainty associated with satellite-based estimates of premature mortality due to exposure to fine particulate matter

  Authors:Bonne Ford and Colette L. HealdFrom:Atmospheric Chemistry and Physics (Vol. 16, Issue 5) Peer-Reviewed

  Mar. 17, 2016303 words Author abstract, Bri... The negative impacts of fine particulate matter (PM.sub.2.5) exposure on human health are a primary motivator for air quality research. However, estimates of the air pollution health burden vary considerably and...

• An evaluation of global organic aerosol schemes using airborne observations

  Authors:Sidhant J. Pai, Colette L. Heald, Jeffrey R. Pierce, Salvatore C. Farina, Eloise A. Marais, Jose L. Jimenez, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 5) Peer-Reviewed

  Mar. 4, 2020483 words Brief article Chemical transport models have historically struggled to accurately simulate the magnitude and variability of observed organic aerosol (OA), with previous studies demonstrating that models significantly underestimate...

• Development of a reduced-complexity plant canopy physics surrogate model for use in chemical transport models: a case study with GEOS-Chem v12.3.0.

  Authors:Sam J. Silva, Colette L. Heald, and Alex B. GuentherFrom:Geoscientific Model Development (Vol. 13, Issue 6) Peer-Reviewed

  June 3, 2020305 words Case study, Brief ar... Biosphere-atmosphere interactions strongly influence the chemical composition of the atmosphere. Simulating these interactions at a detailed process-based level has traditionally been computationally intensive and...

• Deriving brown carbon from multiwavelength absorption measurements: method and application to AERONET and Aethalometer observations

  Authors:Xuan Wang, Colette L. Heald, Arthur J. Sedlacek, Scot T. Martin, M. Lizabeth Alexander, Thomas B. Watson, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 19) Peer-Reviewed

  Oct. 13, 2016484 words Brief article The radiative impact of organic aerosols (OA) is a large source of uncertainty in estimating the global direct radiative effect (DRE) of aerosols. This radiative impact includes not only light scattering but also light...

• Constraining remote oxidation capacity with ATom observations.

  Authors:Katherine R. Travis, Colette L. Heald, Hannah M. Allen, Eric C. Apel, Stephen R. Arnold, Donald R. Blake, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 13) Peer-Reviewed

  July 3, 2020594 words Article The global oxidation capacity, defined as the tropospheric mean concentration of the hydroxyl radical (OH), controls the lifetime of reactive trace gases in the atmosphere such as methane and carbon monoxide (CO). Models...

• Coupling between surface ozone and leaf area index in a chemical transport model: strength of feedback and implications for ozone air quality and vegetation health

  Authors:Shan S. Zhou, Amos P. K. Tai, Shihan Sun, Mehliyar Sadiq, Colette L. Heald, and Jeffrey A. GeddesFrom:Atmospheric Chemistry and Physics (Vol. 18, Issue 19) Peer-Reviewed

  Oct. 5, 2018430 words Brief article, Repor...

  Tropospheric ozone is an air pollutant that substantially harms vegetation and is also strongly dependent on various vegetation-mediated processes. The interdependence between ozone and vegetation may constitute...

• SALSA2.0: The sectional aerosol module of the aerosol-chemistry-climate model ECHAM6.3.0-HAM2.3-MOZ1.0

  Authors:Harri Kokkola, Thomas Kohn, Anton Laakso, Tommi Bergman, Kari E. J. Lehtinen, Tero Mielonen, et al.From:Geoscientific Model Development (Vol. 11, Issue 9) Peer-Reviewed

  Sept. 26, 2018403 words Author abstract, Bri...

  In this paper, we present the implementation and evaluation of the aerosol microphysics module SALSA2.0 in the framework of the aerosol-chemistry-climate model ECHAM-HAMMOZ. It is an alternative microphysics module...

• Model-measurement consistency and limits of bioaerosol abundance over the continental United States.

  Authors:Maria A. Zawadowicz, Karl D. Froyd, Anne E. Perring, Daniel M. Murphy, Dominick V. Spracklen, Colette L. Heald, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 22) Peer-Reviewed

  Nov. 19, 2019256 words Brief article Due to low concentrations and chemical complexity, in situ observations of bioaerosol are geographically and temporally sparse, and this limits the accuracy of current emissions inventories. In this study, we apply a new...