Search Results - "Heald, Colette L"

Land Use Change Impacts on Air Quality and Climate by Heald, Colette L, Spracklen, Dominick V

“…The authors examine the impact that land use change has on air quality and climate. Topics discussed include land use change effects on ammonia and on dust…”
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Threat to future global food security from climate change and ozone air pollution by Tai, Amos P. K., Martin, Maria Val, Heald, Colette L.

“…This study shows that climate change has the potential to substantially increase undernourishment rates and threaten food security in developing countries…”
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An observationally constrained estimate of global dust aerosol optical depth by Ridley, David A, Heald, Colette L, Kok, Jasper F, Zhao, Chun

“…The role of mineral dust in climate and ecosystems has been largely quantified using global climate and chemistry model simulations of dust emission,…”
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Exploring the observational constraints on the simulation of brown carbon by Wang, Xuan, Heald, Colette L, Liu, Jiumeng, Weber, Rodney J, Campuzano-Jost, Pedro, Jimenez, Jose L, Schwarz, Joshua P, Perring, Anne E

“…Organic aerosols (OA) that strongly absorb solar radiation in the near-UV are referred to as brown carbon (BrC). The sources, evolution, and optical properties…”
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Laboratory Investigation of Renoxification from the Photolysis of Inorganic Particulate Nitrate by Shi, Qianwen, Tao, Ye, Krechmer, Jordan E, Heald, Colette L, Murphy, Jennifer G, Kroll, Jesse H, Ye, Qing

“…Nitrogen oxides (NO x ) play a key role in regulating the oxidizing capacity of the atmosphere through controlling the abundance of O3, OH, and other important…”
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Particulate matter air pollution may offset ozone damage to global crop production by Schiferl, Luke D, Heald, Colette L

“…Ensuring global food security requires a comprehensive understanding of environmental pressures on food production, including the impacts of air quality…”
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Atmospheric budget of primary biological aerosol particles from fungal spores by Heald, Colette L., Spracklen, Dominick V.

“…The contribution of primary biological aerosol particles (PBAP) to the global budget of organic aerosol is poorly understood. Concentrations of mannitol, a…”
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An evaluation of global organic aerosol schemes using airborne observations by Pai, Sidhant J, Heald, Colette L, Pierce, Jeffrey R, Farina, Salvatore C, Marais, Eloise A, Jimenez, Jose L, Campuzano-Jost, Pedro, Nault, Benjamin A, Middlebrook, Ann M, Coe, Hugh, Shilling, John E, Bahreini, Roya, Dingle, Justin H, Vu, Kennedy

“…Chemical transport models have historically struggled to accurately simulate the magnitude and variability of observed organic aerosol (OA), with previous…”
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How emissions uncertainty influences the distribution and radiative impacts of smoke from fires in North America by Carter, Therese S., Heald, Colette L., Jimenez, Jose L., Campuzano-Jost, Pedro, Kondo, Yutaka, Moteki, Nobuhiro, Schwarz, Joshua P., Wiedinmyer, Christine, Darmenov, Anton S., Silva, Arlindo M. da, Kaiser, Johannes W.

“…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…”
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Biogenic carbon and anthropogenic pollutants combine to form a cooling haze over the southeastern United States by Goldstein, Allen H, Koven, Charles D, Heald, Colette L, Fung, Inez Y

“…Remote sensing data over North America document the ubiquity of secondary aerosols resulting from a combination of primary biogenic and anthropogenic…”
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Large mitigation potential of smoke PM2.5 in the US from human-ignited fires by Carter, Therese S, Heald, Colette L, Selin, Noelle E

“…Increasing fire activity and the associated degradation in air quality in the United States has been indirectly linked to human activity via climate change. In…”
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Investigating Dry Deposition of Ozone to Vegetation by Silva, Sam J., Heald, Colette L.

“…Atmospheric ozone loss through dry deposition to vegetation is a critically important process for both air quality and ecosystem health. The majority of…”
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Effect of CO2 inhibition on biogenic isoprene emission: Implications for air quality under 2000 to 2050 changes in climate, vegetation, and land use by Tai, Amos P. K., Mickley, Loretta J., Heald, Colette L., Wu, Shiliang

“…The inhibition of biogenic isoprene emission by elevated CO2 as observed in many plant taxa may significantly alter the sensitivity of air quality to global…”
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Product distribution, kinetics, and aerosol formation from the OH oxidation of dimethyl sulfide under different RO2 regimes by Ye, Qing, Goss, Matthew B, Krechmer, Jordan E, Majluf, Francesca, Zaytsev, Alexander, Li, Yaowei, Roscioli, Joseph R, Canagaratna, Manjula, Keutsch, Frank N, Heald, Colette L, Kroll, Jesse H

“…The atmospheric oxidation of dimethyl sulfide (DMS) represents a major natural source of atmospheric sulfate aerosols. However, there remain large…”
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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 by Zhou, Shan S, Tai, Amos P. K, Sun, Shihan, Sadiq, Mehliyar, Heald, Colette L, Geddes, Jeffrey A

“…Tropospheric ozone is an air pollutant that substantially harms vegetation and is also strongly dependent on various vegetation-mediated processes. The…”
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Current and future ozone risks to global terrestrial biodiversity and ecosystem processes by Fuhrer, Jürg, Val Martin, Maria, Mills, Gina, Heald, Colette L., Harmens, Harry, Hayes, Felicity, Sharps, Katrina, Bender, Jürgen, Ashmore, Mike R.

“…Risks associated with exposure of individual plant species to ozone (O3) are well documented, but implications for terrestrial biodiversity and ecosystem…”
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Aerosol Impacts on Climate and Biogeochemistry by Mahowald, Natalie, Ward, Daniel S, Kloster, Silvia, Flanner, Mark G, Heald, Colette L, Heavens, Nicholas G, Hess, Peter G, Lamarque, Jean-Francois, Chuang, Patrick Y

“…Aerosols are suspensions of solid and or liquid particles in the atmosphere and modify atmospheric radiative fluxes and chemistry. Aerosols move mass from one…”
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Spatial distribution of isoprene emissions from North America derived from formaldehyde column measurements by the OMI satellite sensor by Millet, Dylan B., Jacob, Daniel J., Boersma, K. Folkert, Fu, Tzung-May, Kurosu, Thomas P., Chance, Kelly, Heald, Colette L., Guenther, Alex

“…Space‐borne formaldehyde (HCHO) column measurements from the Ozone Monitoring Instrument (OMI), with 13 × 24 km2 nadir footprint and daily global coverage,…”
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Elemental composition of organic aerosol: The gap between ambient and laboratory measurements by Chen, Qi, Heald, Colette L., Jimenez, Jose L., Canagaratna, Manjula R., Zhang, Qi, He, Ling-Yan, Huang, Xiao-Feng, Campuzano-Jost, Pedro, Palm, Brett B., Poulain, Laurent, Kuwata, Mikinori, Martin, Scot T., Abbatt, Jonathan P. D., Lee, Alex K.Y., Liggio, John

“…A large data set including surface, aircraft, and laboratory observations of the atomic oxygen‐to‐carbon (O:C) and hydrogen‐to‐carbon (H:C) ratios of organic…”
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A large organic aerosol source in the free troposphere missing from current models by Heald, Colette L., Jacob, Daniel J., Park, Rokjin J., Russell, Lynn M., Huebert, Barry J., Seinfeld, John H., Liao, Hong, Weber, Rodney J.

“…Aircraft measurements of organic carbon (OC) aerosol by two independent methods over the NW Pacific during the ACE‐Asia campaign reveal unexpectedly high…”
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