Matson A. Pothier
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View article: A Vertically Resolved Canopy Improves Chemical Transport Model Predictions of Ozone Deposition to North Temperate Forests
A Vertically Resolved Canopy Improves Chemical Transport Model Predictions of Ozone Deposition to North Temperate Forests Open
Dry deposition is the second largest tropospheric ozone (O 3 ) sink and occurs through stomatal and nonstomatal pathways. Current O 3 uptake predictions are limited by the simplistic big‐leaf schemes commonly used in chemical transport mod…
View article: Closing the reactive carbon flux budget: Observations from dual mass spectrometers over a coniferous forest
Closing the reactive carbon flux budget: Observations from dual mass spectrometers over a coniferous forest Open
We use observations from dual high-resolution mass spectrometers to characterize ecosystem-atmosphere fluxes of reactive carbon across an extensive range of volatile organic compounds (VOCs) and test how well that exchange is represented i…
View article: From the HOMEChem frying pan to the outdoor atmosphere: chemical composition, volatility distributions and fate of cooking aerosol
From the HOMEChem frying pan to the outdoor atmosphere: chemical composition, volatility distributions and fate of cooking aerosol Open
New measurements show that cooking aerosol released indoors can partition as it dilutes through a home and to the outdoor atmosphere, impacting both indoor and outdoor air quality.
View article: Biomass Burning Smoke and Its Influence on Clouds Over the Western U. S.
Biomass Burning Smoke and Its Influence on Clouds Over the Western U. S. Open
Small cumulus clouds over the western United States were measured via airborne instruments during the wildfire season in summer of 2018. Statistics of the sampled clouds are presented and compared to smoke aerosol properties. Cloud droplet…
View article: Empirical Insights Into the Fate of Ammonia in Western U.S. Wildfire Smoke Plumes
Empirical Insights Into the Fate of Ammonia in Western U.S. Wildfire Smoke Plumes Open
Wildfires are a major source of gas‐phase ammonia (NH 3 ) to the atmosphere. Quantifying the evolution and fate of this NH 3 is important to understanding the formation of secondary aerosol in smoke and its accompanying effects on radiativ…
View article: Quantification of cooking organic aerosol in the indoor environment using aerodyne aerosol mass spectrometers
Quantification of cooking organic aerosol in the indoor environment using aerodyne aerosol mass spectrometers Open
The Aerodyne aerosol mass spectrometer (AMS) is used extensively to study the composition of non-refractory submicron aerosol composition during atmospheric field studies. During two recent studies of indoor environments, HOMEChem and ATHL…
View article: Acidity across the interface from the ocean surface to sea spray aerosol
Acidity across the interface from the ocean surface to sea spray aerosol Open
Significance Sea spray aerosol, produced through breaking waves, is one of the largest sources of environmental particles. Once in the atmosphere, sea spray aerosol influences cloud formation, serves as microenvironments for multiphase atm…
View article: Daytime Oxidized Reactive Nitrogen Partitioning in Western U.S. Wildfire Smoke Plumes
Daytime Oxidized Reactive Nitrogen Partitioning in Western U.S. Wildfire Smoke Plumes Open
The Western Wildfire Experiment for Cloud Chemistry, Aerosol Absorption, and Nitrogen (WE‐CAN) deployed the NSF/NCAR C‐130 aircraft in summer 2018 across the western U.S. to sample wildfire smoke during its first days of atmospheric evolut…
View article: Emissions of Reactive Nitrogen From Western U.S. Wildfires During Summer 2018
Emissions of Reactive Nitrogen From Western U.S. Wildfires During Summer 2018 Open
Reactive nitrogen ( N r ) within smoke plumes plays important roles in the production of ozone, the formation of secondary aerosols, and deposition of fixed N to ecosystems. The Western Wildfire Experiment for Cloud Chemistry, Aerosol Abso…
View article: Quantification of organic aerosol and brown carbon evolution in fresh wildfire plumes
Quantification of organic aerosol and brown carbon evolution in fresh wildfire plumes Open
Significance Wildfire emissions in the western United States have had increasingly larger impacts on air quality, health, and climate forcing in recent decades. However, our understanding of how wildfire plume composition evolves remains i…
View article: Secondary organic aerosol formation from evaporated biofuels: comparison to gasoline and correction for vapor wall losses
Secondary organic aerosol formation from evaporated biofuels: comparison to gasoline and correction for vapor wall losses Open
With an ongoing interest in displacing petroleum-based sources of energy with biofuels, we measure and model the formation and composition of secondary organic aerosol (SOA) from organic compounds present in biofuels.
View article: Emission and Evolution of Submicron Organic Aerosol in Smoke from Wildfires in the Western United States
Emission and Evolution of Submicron Organic Aerosol in Smoke from Wildfires in the Western United States Open
Despite increasing incidence of wildfires in the United States, wildfire smoke is poorly characterized, with little known about particle composition and emission rates. Chemistry in transported plumes confounds interpretation of ground and…