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Summertime PM2.5 ionic species in four major cities of China: nitrate formation in an ammonia-deficient atmosphere
PM2.5 ionic species China nitrate formation ammonia-deficient atmosphere
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2009/3/13
Strong atmospheric photochemistry in summer can produce a significant amount of secondary aerosols, which may have a large impact on regional air quality and visibility. In the study reported herein,...
Asian dust outflow in the PBL and free atmosphere retrieved by NASA CALIPSO and an assimilated dust transport model
Asian dust outflow PBL free atmosphere NASA CALIPSO dust transport model
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2009/3/13
Three-dimensional structures of Asian dust transport in the planetary boundary layer (PBL) and free atmosphere occurring successively during the end of May 2007 were clarified using results of space-b...
The effect of the solar rotational irradiance variation on the middle and upper atmosphere calculated by a three-dimensional chemistry-climate model
solar rotational irradiance variation atmosphere three-dimensional chemistry-climate model
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2009/3/12
This paper analyzes the effects of the solar rotational (27-day) irradiance variations on the chemical composition and temperature of the stratosphere, mesosphere and lower thermosphere as simulated b...
Past and future conditions for polar stratospheric cloud formation simulated by the Canadian Middle Atmosphere Model
Past and future conditions polar stratospheric cloud formation Canadian Middle Atmosphere Model
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2009/3/12
We analyze here the polar stratospheric temperatures in an ensemble of three 150-year integrations of the Canadian Middle Atmosphere Model (CMAM), an interactive chemistry-climate model which simulate...
Analysis of a summer smog episode in the Berlin-Brandenburg region with a nested atmosphere -- chemistry model
summer smog episode Berlin-Brandenburg region nested atmosphere chemistry model
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2009/3/12
An analysis of a pollution episode in an urban atmosphere, using a complex model system is presented. The nested atmosphere-chemistry model system simulates the atmospheric conditions during a one wee...
The flux of carbonyl sulfide and carbon disulfide between the atmosphere and a spruce forest
flux of carbonyl sulfide carbon disulfide atmosphere spruce forest
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2009/3/12
Turbulent fluxes of carbonyl sulfide (COS) and carbon disulfide (CS2) were measured over a spruce forest in Central Germany using the relaxed eddy accumulation (REA) technique. A REA sampler was devel...
The role of volatile organic compounds in the polluted urban atmosphere of Bristol, England
volatile organic compounds polluted urban atmosphere Bristol England
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2009/3/11
The results of a field campaign carried out from early spring through to the late summer of 2000, in Bristol, England, are presented. Continuous measurements of over 40 hydrocarbons have been made at ...
Comprehensive two-dimensional gas chromatography（GC × GC）measurements of volatile organic compounds in the atmosphere
Comprehensive two-dimensional gas chromatography volatile organic compounds atmosphere
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2009/3/10
During the MINOS campaign in August 2001 comprehensive two-dimensional gas chromatography (GC x GC) was applied to the in situ measurements of atmospheric volatile organic compounds (VOCs) at the Fino...
Heterogeneous conversion of NO2 on secondary organic aerosol surfaces: A possible source of nitrous acid（HONO）in the atmosphere?
Heterogeneous conversion NO2 secondary organic aerosol nitrous acid HONO
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2009/3/10
The heterogeneous conversion of NO2 on different secondary organic aerosols (SOA) was investigated with the focus on a possible formation of nitrous acid (HONO). In one set of experiments different or...
Fluxes of nitrates between snow surfaces and the atmosphere in the European high Arctic
Fluxes of nitrates snow surfaces atmosphere European high Arctic
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2009/3/10
Measurements of atmospheric and snow mixing ratios of nitrates and nitrites and their fluxes above the snow surface were made during two intensive campaigns during spring time 2001 at Ny-Ålesund...
A model for particle formation and growth in the atmosphere with molecular resolution in size
particle formation and growth atmosphere molecular resolution
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2009/3/10
The formation and growth of atmospheric aerosol particles is considered using an exact discrete method with molecular resolution in size space. The method is immune to numerical diffusion problems tha...
The H Lyman-a actinic flux in the middle atmosphere
H Lyman-a actinic flux middle atmosphere
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2009/3/10
The penetration of solar H Lyman-a radiation into the terrestrial middle atmosphere is studied in detail. The Lyman-a actinic flux is calculated with a Monte Carlo approach including multiple resonanc...
Release and dispersion of vegetation and peat fire emissions in the atmosphere over Indonesia 1997/1998
vegetation peat fire emissions atmosphere Indonesia
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2009/3/9
Smoke-haze episodes caused by vegetation and peat fires affect parts of Indonesia every year with significant impacts on human health and climate. Particularly fires in degenerated peat areas release ...
Long-term global distribution of earth's shortwave radiation budget at the top of atmosphere
earth's shortwave radiation budget atmosphere
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2009/3/3
The mean monthly shortwave (SW) radiation budget at the top of atmosphere (TOA) was computed on 2.5° longitude-latitude resolution for the 14-year period from 1984 to 1997, using a radiative transfer ...
Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on the east and west side of the Scandinavian mountains: a case study on 19/20 January 2003
Simultaneous lidar polar middle atmosphere Scandinavian mountains
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2009/2/26
Atmospheric gravity waves have been the subject of intense research for several decades because of their extensive effects on the atmospheric circulation and the temperature structure. The U. Bonn lid...