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TROPOSPHERIC OZONE AND ITS RADIATIVE EFFECTS DUE TO ANTHROPOGENIC AND LIGHTNING EMISSIONS: GLOBAL AND REGIONAL MODELING
(2012)
We analyze the contribution of North American (NA) lightning and anthropogenic emissions to summertime ozone concentrations, radiative forcing, and exports from North America using the global University of Maryland chemistry ...
Air Pollutant Concentrations and Trends over the Eastern U.S. and China: Aircraft Measurements and Numerical Simulations
(2012)
In the last several decades, efforts have been made to mitigate air pollution all
around the world. With surface observations showing substantial decrease of criteria
pollutants, including O3, NOx, CO and SO2, the long-term ...
IMPACTS OF FAIR-WEATHER CUMULUS CLOUDS, BAY BREEZES, AND LAND USE ON URBAN AIR QUALITY AND CLIMATE
(2011)
Fair-weather cumulus clouds, bay breezes, and land use influence air quality and climate. The impacts of urban land surface changes and model resolution on fair-weather cumulus clouds, bay breezes, air quality, and climate ...
Interaction Between the Aerosol Direct Effect in the Lower Troposphere and the Planetary Boundary Layer
(2015)
The planetary boundary layer (PBL) limits the vertical mixing of aerosol emitted to the lower troposphere. The PBL depth and its change over time affect weather, surface air quality and radiative forcing. While model ...
EXAMINATION OF THE PHOTOCHEMISTRY AND MESOSCALE METEOROLOGY ASSOCIATED WITH POOR AIR QUALITY IN THE U.S.
(2018)
Mesoscale meteorological processes including advection, vertical mixing, thermally-direct circulations (sea/bay breezes) combined with chemical processes and deposition dominate boundary-layer ozone (O3). While bay breezes ...
DEEP CONVECTIVE TRANSPORT AND WET SCAVENGING IN DIFFERENT CONVECTIVE REGIMES DURING THE DC3 FIELD CAMPAIGN
(2018)
Deep convective transport of surface moisture and pollution from the planetary boundary layer to the upper troposphere and lower stratosphere affects the radiation budget and climate. Firstly, I analyzed the deep convective ...
Multi-instrument approach for measuring spectral aerosol absorption properties in UV and VIS wavelengths
(2017)
The spectral dependence of light absorption by atmospheric particulate matter (PM) has major implications for air quality, surface ultraviolet (UV) radiation, and tropospheric oxidation capacity, but remains highly uncertain. ...
IMPACT OF AEROSOL DIRECT AND INDIRECT EFFECTS ON EAST ASIAN AIR QUALITY DURING EAST-AIRE CAMPAIGN PERIOD
(2017)
WRF-Chem simulations were performed for the March 2005 East Asian Studies of Tropospheric Aerosols: an International Regional Experiment (EAST-AIRE) Intensive Observation Campaign (IOC) to investigate the effects of aerosols ...
Lifetime and distribution of ozone and related pollutants in the eastern United States
(2015)
Most major cities in the eastern United States have air quality deemed unhealthy by the EPA under a set of regulations known as the National Ambient Air Quality Standards (NAAQS). The worst air quality in Maryland is ...
Photochemistry and transport of tropospheric ozone and its precursors in urban and remote environments
(2016)
Tropospheric ozone (O3) adversely affects human health, reduces crop yields, and contributes to climate forcing. To limit these effects, the processes controlling O3 abundance as well as that of its precursor molecules ...