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Assessing the Relationship between Air Mass Age and Summer Ozone Episodes Based on Photochemical Indices
Ozone Aerosol Aging Backward trajectory Conversion ratio Photochemical index
2016/3/25
Although pollutant sources are usually in urban and industrialized areas, poor air quality is
frequently encountered in downwind rural areas. This study utilized a tethered balloon to measure the
po...
Tropospheric ozone climatology at two Southern Hemisphere tropical/subtropical sites,（Reunion Island and Irene, South Africa）from ozonesondes, LIDAR, and in situ aircraft measurements
Tropospheric ozone climatology Reunion Island and Irene South Africa ozonesondes LIDAR
2009/3/13
This paper presents a climatology and trends of tropospheric ozone in the Southwestern Indian Ocean (Reunion Island) and South Africa (Irene and Johannesburg). This study is based on a multi-instrumen...
Severe ozone air pollution in the Persian Gulf region
Severe ozone air pollution Persian Gulf region
2009/3/13
Recently it was discovered that over the Middle East during summer ozone mixing ratios can reach a pronounced maximum in the middle troposphere. Here we extend the analysis to the surface and show tha...
Increasing ozone in marine boundary layer inflow at the west coasts of North America and Europe
ozone marine boundary layer west coasts North America Europe
2009/3/13
An effective method is presented for determining the ozone (O3) mixing ratio in the onshore flow of marine air at the North American west coast. By combining the data available from all marine boundar...
Clear sky UV simulations for the 21st century based on ozone and temperature projections from Chemistry-Climate Models
Clear sky UV 21st century ozone and temperature projections Chemistry-Climate Models
2009/3/13
We have estimated changes in surface solar ultraviolet (UV) radiation under cloud free conditions in the 21st century based on simulations of 11 coupled Chemistry-Climate Models (CCMs). The total ozon...
The effects of global changes upon regional ozone pollution in the United States
global changes regional ozone pollution United States
2009/3/13
A comprehensive numerical modeling framework was developed to estimate the effects of collective global changes upon ozone pollution in the US in 2050. The framework consists of the global climate and...
Attribution of projected changes in summertime US ozone and PM2.5 concentrations to global changes
projected changes summertime US ozone PM2.5 concentrations global changes
2009/3/13
The impact that changes in future climate, anthropogenic US emissions, background tropospheric composition, and land-use have on summertime regional US ozone and PM2.5 concentrations is examined throu...
Intercomparison of Aerosol Optical Depth from Brewer Ozone spectrophotometers and CIMEL sunphotometers measurements
Aerosol Optical Depth Brewer Ozone spectrophotometers CIMEL sunphotometers
2009/3/12
The Langley plot method applied on the Brewer Ozone measurements can provide accurate Aerosol Optical Depth (AOD) in the UV-B. We present seven intercomparisons between AOD retrieved from Brewer Ozone...
Ozone Monitoring Instrument spectral UV irradiance products: comparison with ground based measurements at an urban environment
Ozone Monitoring Instrument spectral UV irradiance products urban environment
2009/3/12
We have compared spectral ultraviolet overpass irradiances from the Ozone Monitoring Instruments (OMI) against ground-based Brewer measurements at Thessaloniki, Greece from September 2004 to December ...
Ozone mixing ratios inside tropical deep convective clouds from OMI satellite measurements
Ozone mixing ratios tropical deep convective clouds OMI satellite measurements
2009/3/12
We have developed a new technique for estimating ozone mixing ratio inside deep convective clouds. The technique uses the concept of an optical centroid cloud pressure that is indicative of the photon...
Effects of regional-scale and convective transports on tropospheric ozone chemistry revealed by aircraft observations during the wet season of the AMMA campaign
regional-scale and convective transports tropospheric ozone chemistry wet season
2009/3/12
The African Monsoon Multidisciplinary Analyses (AMMA) fourth airborne campaign was conducted in July–August 2006 to study the chemical composition of the middle and upper troposphere in West Africa wi...
Validation of ozone measurements from the Atmospheric Chemistry Experiment（ACE）
ozone measurements Atmospheric Chemistry Experiment ACE
2009/3/12
This paper presents extensive {bias determination} analyses of ozone observations from the Atmospheric Chemistry Experiment (ACE) satellite instruments: the ACE Fourier Transform Spectrometer (ACE-FTS...
Modeled and observed ozone sensitivity to mobile-source emissions in Mexico City
Modeled and observed ozone sensitivity mobile-source emissions Mexico City
2009/3/12
The emission characteristics of mobile sources in the Mexico City Metropolitan Area (MCMA) have changed significantly over the past few decades in response to emission control policies, advancements i...
An exploration of ozone changes and their radiative forcing prior to the chlorofluorocarbon era
ozone changes radiative forcing chlorofluorocarbon era
2009/3/12
Using historical observations and model simulations, we investigate ozone trends prior to the mid-1970s onset of halogen-induced ozone depletion. Though measurements are quite limited, an analysis bas...
Global ozone forecasting based on ERS-2 GOME observations
Global ozone forecasting ERS-2 GOME
2009/3/12
The availability of near-real time ozone observations from satellite instruments has recently initiated the development of ozone data assimilation systems. In this paper we present the results of an o...
