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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...
Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records
Surface ozone depletion episodes Arctic Antarctic historical ozonesonde
2009/3/12
Episodes of ozone depletion in the lowermost Arctic atmosphere (0--2 km) at polar sunrise have been intensively studied at Alert, Canada, and are thought to result from catalytic reactions involving b...
Chemistry-transport modeling of the satellite observed distribution of tropical troposheric ozone
Chemistry-transport modeling satellite observed distribution tropical troposheric ozone
2009/3/12
We have compared the 14-year record of satellite derived tropical tropospheric ozone columns (TTOC) from the NIMBUS--7 Total Ozone Mapping Spectrometer (TOMS) to TTOC calculated by achemistry-transpor...
Intercontinental transport of tropospheric ozone: a study of its seasonal variability across the North Atlantic utilizing tropospheric ozone residuals and its relationship to the North Atlantic Oscillation
Intercontinental transport tropospheric ozone North Atlantic tropospheric ozone North Atlantic Oscillation
2009/3/11
Using the empirically-corrected tropospheric ozone residual (TOR) technique, which utilizes coincident observations of total ozone from the Total Ozone Mapping Spectrometer (TOMS) and stratospheric oz...
Preindustrial-to-present-day radiative forcing by tropospheric ozone from improved simulations with the GISS chemistry-climate GCM
Preindustrial-to-present-day radiative forcing tropospheric ozone GISS chemistry-climate GCM
2009/3/11
Improved estimates of the radiative forcing from tropospheric ozone increases since the preindustrial have been calculated with the tropospheric chemistry model used at the Goddard Institute for Space...
Comparison of total ozone from the satellite instruments GOME and TOMS with measurements from the Dobson network 1996–2000
ozone GOME TOMS Dobson
2009/3/11
Over the last 3 decades, satellite data have been used to monitor long-term global changes in stratospheric ozone. The TOMS series (1978-present) and GOME (1995-present) are two very important instrum...
A three-dimensional model study of long-term mid-high latitude lower stratosphere ozone changes
three-dimensional model long-term mid-high latitude lower stratosphere ozone changes
2009/3/11
We have used a 3D off-line chemical transport model (CTM) to study the causes of the observed changes in ozone in the mid-high latitude lower stratosphere from 1979-1998. The model was forced by Europ...