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Improved estimate of the policy-relevant background ozone in the United States using the GEOS-Chem global model with 1/2° × 2/3° horizontal resolution over North America
(Elsevier BV, 2011)
The policy-relevant background (PRB) ozone is defined by the US Environmental Protection Agency (EPA) as the surface ozone concentration that would be present over the US in the absence of North American anthropogenic ...
Effect of Climate Change on Air Quality
(Elsevier, 2009)
Air quality is strongly dependent on weather and is therefore sensitive to climate change. Recent studies have provided estimates of this climate effect through correlations of air quality with meteorological variables, ...
Climate forcings in Goddard Institute for Space Studies SI2000 simulations
(Wiley-Blackwell, 2002)
We define the radiative forcings used in climate simulations with the SI2000 version of the Goddard Institute for Space Studies (GISS) global climate model. These include temporal variations of well-mixed greenhouse gases, ...
Sources and chemistry of nitrogen oxides over the tropical Pacific
(Wiley-Blackwell, 2003)
We examine the sources and chemistry affecting nitrogen oxides (NOx = NO + NO2) over the tropical Pacific (30°S–20°N) using observations from the Pacific Exploratory Mission to the Tropics B (PEM-Tropics B) aircraft mission ...
Global and regional decreases in tropospheric oxidants from photochemical effects of aerosols
(Wiley-Blackwell, 2003)
We evaluate the sensitivity of tropospheric OH, O3, and O3 precursors to photochemical effects of aerosols not usually included in global models: (1) aerosol scattering and absorption of ultraviolet radiation and (2) ...
Interannual Variability in Tropical Tropospheric Ozone and OH: The Role of Lightning
(Wiley-Blackwell, 2013)
Nitrogen oxide radicals (NOx) produced by lightning are natural precursors for the production of the dominant tropospheric oxidants, OH and ozone. Observations of the interannual variability (IAV) of tropical ozone and of ...
Ozone production in transpacific Asian pollution plumes and implications for ozone air quality in California
(Wiley-Blackwell, 2004)
We examine the ozone production efficiency in transpacific Asian pollution plumes, and the implications for ozone air quality in California, by using aircraft and surface observations in April–May 2002 from the Intercontinental ...
Impact of Asian emissions on observations at Trinidad Head, California, during ITCT 2K2
(Wiley-Blackwell, 2004)
Field measurements of a wide suite of trace gases and aerosols were carried out during April and May 2002, along with extensive chemical transport modeling, as part of the NOAA Intercontinental Transport and Chemical ...
Evaluation of GOME satellite measurements of tropospheric NO 2 and HCHO using regional data from aircraft campaigns in the southeastern United States
(Wiley-Blackwell, 2004)
We compare tropospheric measurements of nitrogen dioxide (NO2) and formaldehyde (HCHO) from the Global Ozone Monitoring Experiment (GOME) satellite instrument with in situ measurements over eastern Texas and the southeast ...
Interpretation of TOMS observations of tropical tropospheric ozone with a global model and in situ observations
(American Geophysical Union, 2002)
We interpret the distribution of tropical tropospheric ozone columns (TTOCs) from the Total Ozone Mapping Spectrometer (TOMS) by using a global three-dimensional model of tropospheric chemistry (GEOS-CHEM) and additional ...