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Researchers set to take to the air above the Arctic and New York City（图）
air above Arctic New York City
2020/10/10
Atmospheric scientists are embarking on two new research projects supported by the U.S. National Science Foundation that involve using sophisticated planes to understand the atmospheric chemistry and ...
Impact of Manaus City on the Amazon Green Ocean atmosphere: ozone production, precursor sensitivity and aerosol load
Manaus City the Amazon Green Ocean atmosphere ozone production precursor sensitivity aerosol load
2010/10/11
We used a Single Column Chemistry and Transport Model (SCM) to infer the urban pollution emission fluxes of Manaus City, implying observed mixing ratios of CO, NOx and VOC. The model can reproduce the...
Impact of model resolution on chemical ozone formation in Mexico City: application of the WRF-Chem model
model resolution chemical ozone formation Mexico City the WRF-Chem model
2010/10/11
The resolution of regional chemical/dynamical models has important effects on the calculation of the distributions of air pollutants in urban areas. In this study, the sensitivity of air pollutants an...
Investigation of the correlation between odd oxygen and secondary organic aerosol in Mexico City and Houston
the correlation odd oxygen and secondary organic aerosol Mexico City Houston
2010/10/11
Many recent models underpredict secondary organic aerosol (SOA) particulate matter (PM) concentrations in polluted regions, indicating serious deficiencies in the models' chemical mechanisms and/or mi...
An overview of the MILAGRO 2006 Campaign: Mexico City emissions and their transport and transformation
the MILAGRO 2006 Campaign Mexico City emissions transport and transformation
2010/9/21
This paper describes the measurements performed during MILAGRO and the results obtained on MCMA's atmospheric meteorology and dynamics, emissions of gases and fine particles, sources and concentration...
The production and persistence of ΣRONO2 in the Mexico City plume
ΣRONO2 the Mexico City plume
2010/8/16
Alkyl and multifunctional nitrates (RONO2, ΣANs) have been observed to be a significant fraction of NOy in a number of different chemical regimes. Their formation is an important free radical chain te...
Oxidative capacity of the Mexico City atmosphere – Part 2: A ROx radical cycling perspective
Oxidative capacity the Mexico City atmosphere A ROx radical cycling perspective
2010/8/16
A box model using measurements from the Mexico City Metropolitan Area study in the spring of 2003 (MCMA-2003) is presented to study oxidative capacity (our ability to predict OH radicals) and ROx (ROx...
Oxidative capacity of the Mexico City atmosphere – Part 1: A radical source perspective
Oxidative capacity the Mexico City atmosphere A radical source perspective
2010/8/16
A detailed analysis of OH, HO2 and RO2 radical sources is presented for the near field photochemical regime inside the Mexico City Metropolitan Area (MCMA). During spring of 2003 (MCMA-2003 field camp...
Impacts of HONO sources on the photochemistry in Mexico City during the MCMA-2006/MILAGO Campaign
HONO sources the photochemistry Mexico City the MCMA-2006/MILAGO Campaign
2010/8/16
The contribution of HONO sources to the photochemistry in Mexico City is investigated during the MCMA-2006/MILAGO Campaign using the WRF-CHEM model. Besides the homogeneous reaction of NO with OH, fou...
Impact of Mexico City emissions on regional air quality from MOZART-4 simulations
Mexico City emissions regional air quality MOZART-4 simulations
2010/8/16
An extensive set of measurements was made in and around Mexico City as part of the MILAGRO (Megacity Initiative: Local and Global Research Observations) experiments in March 2006. Simulations with the...
Mexico city aerosol analysis during MILAGRO using high resolution aerosol mass spectrometry at the urban supersite (T0) – Part 2: Analysis of the biomass burning contribution and the non-fossil carbon fraction
MILAGRO high resolution aerosol mass spectrometry the urban supersite the biomass burning contribution the non-fossil carbon fraction
2010/8/13
Submicron aerosol was analyzed during the MILAGRO field campaign in March 2006 at the T0 urban supersite in Mexico City with a High-Resolution Aerosol Mass Spectrometer (AMS) and complementary instrum...
The roles of sulfuric acid in new particle formation and growth in the mega-city of Beijing
sulfuric acid new particle formation and growth the mega-city of Beijing
2010/8/13
Simultaneous measurements of gaseous sulfuric acid and particle number size distributions were performed to investigate aerosol nucleation and growth during CAREBeijing-2008. The analysis of the measu...
Application of positive matrix factorization to on-road measurements for source apportionment of diesel- and gasoline-powered vehicle emissions in Mexico City
positive matrix factorization on-road measurements source apportionment diesel- and gasoline-powered vehicle emissions Mexico City
2010/8/12
The goal of this research is to quantify diesel- and gasoline-powered motor vehicle emissions within the Mexico City Metropolitan Area (MCMA) using on-road measurements captured by a mobile laboratory...
Cloud condensation nuclei in polluted air and biomass burning smoke near the mega-city Guangzhou, China – Part 1: Size-resolved measurements and implications for the modeling of aerosol particle hygroscopicity and CCN activity
Cloud condensation nuclei polluted air and biomass Size-resolved measurements and implications aerosol particle hygroscopicity CCN activity
2010/8/12
Atmospheric aerosol particles serving as Cloud Condensation Nuclei (CCN) are key elements of the hydrological cycle and climate. We measured and characterized CCN in polluted air and biomass burning s...
Vertical distribution of aerosols in the vicinity of Mexico City during MILAGRO-2006 Campaign
vicinity Mexico City MILAGRO-2006 Campaign
2010/2/21
On 7 March 2006, a mobile, ground-based, vertical pointing, elastic lidar system made a North-South transect through the Mexico City basin. Column averaged, aerosol size distribution (ASD) measurement...