搜索结果: 1-15 共查到“大气化学 ozone”相关记录162条 . 查询时间(0.173 秒)
Fires Burning in Africa&Asia Cause High Ozone in Tropical Pacific（图）
Fires Africa Asia High Ozone Tropical Pacific
2016/2/22
While efforts to limit ozone precursor emissions tend to focus on industrial activities and fossil fuel combustion in the United States and China, a new University of Maryland-led study suggests that ...
Analysis of a rapid increase of stratospheric ozone during late austral summer 2008 over Kerguelen (49.4° S, 70.3° E)
stratospheric ozone late austral summer 2008 Kerguelen (49.4° S, 70.3° E)
2011/1/19
This paper reports on an increase of ozone event observed over Kerguelen (49.4° S, 70.3° E) in relationship with large-scale isentropic transport. This is evidenced by ground-based observations (co-lo...
Attribution of stratospheric ozone trends to chemistry and transport: a modelling study
stratospheric ozone chemistry transport a modelling study
2010/12/28
The decrease of the concentration of ozone depleting substances (ODSs) in the stratosphere over the past decade raises the question to what extent observed changes in stratospheric ozone over this per...
Atmospheric lifetimes and Ozone Depletion Potentials of trans-1-chloro-3,3,3-trifluoropropylene and trans-1,2-dichloroethylene in a three-dimensional model
Atmospheric lifetimes and Ozone Depletion trans-1-chloro-3,3,3-trifluoropropylene trans-1,2-dichloroethylene a three-dimensional model
2010/11/30
The chloroalkenes trans-1-chloro-3,3,3-trifluoropropylene (tCFP) and trans-1,2-dichloroethylene (tDCE) have been proposed as candidate replacements for other compounds in current use that cause concer...
The Eyjafjallajökull eruption in April 2010 – detection of volcanic plume using in-situ measurements, ozone sondes and lidar-ceilometer profiles
The Eyjafjallajö kull eruption April 2010 volcanic plume in-situ measurements ozone sondes lidar-ceilometer profiles
2010/11/3
Volcanic emissions from the Eyjafjallajökull volcano eruption on the Southern fringe of Iceland in April 2010 were detected at the Global Atmosphere Watch (GAW) station Zugspitze/Hohenpeissenberg...
Validation of northern latitude Tropospheric Emission Spectrometer stare ozone profiles with ARC-IONS sondes during ARCTAS: sensitivity, bias and error analysis
northern latitude Tropospheric Emission Spectrometer ozone profiles ARC-IONS sondes ARCTAS
2010/10/21
We compare Tropospheric Emission Spectrometer (TES) versions 3 and 4, V003 and V004, respectively, nadir-stare ozone profiles with ozonesonde profiles from the Arctic Intensive Ozonesonde Network Stud...
Nitrogen oxides and PAN in plumes from boreal fires during ARCTAS-B and their impact on ozone: an integrated analysis of aircraft and satellite observations
Nitrogen oxides and PAN boreal fires ARCTAS-B aircraft and satellite observations
2010/10/21
We determine enhancement ratios for NOx, PAN, and other NOy species from boreal biomass burning using aircraft data obtained during the ARCTAS-B campaign and examine the impact of these emissions on t...
Will climate change increase ozone depletion from low-energy-electron precipitation?
climate change ozone depletion low-energy-electron precipitation
2010/10/21
We investigate the effects of a strengthened stratospheric/mesospheric residual circulation on the transport of nitric oxide (NO) produced by energetic particle precipitation. During periods of high g...
Ozone production during the field campaign RISFEX 2003 in the sea of Japan: analysis of sensitivity and behaviour based on an improved indicator
Ozone production the field campaign RISFEX 2003 the sea of Japan an improved indicator
2010/10/21
The ratio Φ=kHC+OH[HC]/kNOx+OH[NOx] is used as an indicator for the sensitivity of ozone production (P(O3)) to HC and NOx in the field campaign RISFEX 2003 (RIShiri Fall EXperiment 2003) at Rishiri Is...
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...
A closer look at Arctic ozone loss and polar stratospheric clouds
Arctic ozone loss polar stratospheric clouds
2010/9/21
The empirical relationship found between column-integrated Arctic ozone loss and the potential volume of polar stratospheric clouds inferred from meteorological analyses is recalculated in a self-cons...
Trans-Pacific transport of reactive nitrogen and ozone to Canada during spring
Trans-Pacific reactive nitrogen ozone Canada spring
2010/9/21
We interpret observations from the Intercontinental Chemical Transport Experiment, Phase B (INTEX-B) in spring 2006 using a global chemical transport model (GEOS-Chem) to evaluate sensitivities of the...
Release of mercury halides from KCl denuders in the presence of ozone
mercury halides KCl denuders the presence of ozone
2010/9/14
KCl-coated denuders have become a standard method for measurement of gaseous oxidized mercury, but their performance has not been exhaustively evaluated, especially in field conditions. In this study,...
Modelling surface ozone during the 2003 heat-wave in the UK
surface ozone the 2003 heat-wave the UK
2010/9/1
The EMEP4UK modelling system is a high resolution (5×5 km2) application of the EMEP chemistry-transport model, designed for scientific and policy studies in the UK. We demonstrate the use and performa...