搜索结果: 1-10 共查到“大气物理学 sulfate”相关记录10条 . 查询时间(0.043 秒)
Cloud droplet activation of mixed organic-sulfate particles produced by the photooxidation of isoprene
Cloud droplet mixed organic-sulfate particles the photooxidation of isoprene
2010/8/12
The cloud condensation nuclei (CCN) properties of ammonium sulfate particles mixed with organic material condensed during the hydroxyl-radical-initiated photooxidation of isoprene (C5H8) were investig...
The impact of dust on sulfate aerosol, CN and CCN during an East Asian dust storm
dust sulfate aerosol East Asian dust storm
2010/2/1
A global model of aerosol microphysics is used to simulate a large East Asian dust storm during the ACE-Asia experiment. We use the model together with size resolved measurements of aerosol number con...
Laboratory studies of ice formation pathways from ammonium sulfate particles
ice formation pathways ammonium sulfate particles
2009/3/13
Cirrus clouds are composed of ice particles and their formation pathways have been studied extensively in the laboratory. The ability of ammonium sulfate particles to act as nuclei for cirrus clouds h...
A study of the phase transition behavior of internally mixed ammonium sulfate - malonic acid aerosols
phase transition behavior internally mixed ammonium sulfate malonic acid aerosols
2009/3/4
This is a study into the phase transitions of aerosol composed of the ternary system ammonium sulfate (AS) - malonic acid (MA) - water using infrared extinction spectroscopy. Twelve compositions were ...
Effects of the physical state of tropospheric ammonium-sulfate-nitrate particles on global aerosol direct radiative forcing
tropospheric ammonium-sulfate-nitrate particles global aerosol radiative forcing
2009/2/20
The effect of aqueous versus crystalline sulfate-nitrate-ammonium tropospheric particles on global aerosol direct radiative forcing is assessed. A global three-dimensional chemical transport model pre...
Ice nucleation by surrogates for atmospheric mineral dust and mineral dust/sulfate particles at cirrus temperatures
Ice nucleation atmospheric mineral dust mineral dust/sulfate particles cirrus temperatures
2009/2/18
This study examines the potential role of some types of mineral dust and mineral dust with sulfuric acid coatings as heterogeneous ice nuclei at cirrus temperatures. Commercially-available nanoscale p...
Attribution of modeled atmospheric sulfate and SO2 in the Northern Hemisphere for June–July 1997
modeled atmospheric sulfate SO2 Northern Hemisphere
2009/1/16
Anthropogenic sulfate aerosol is a major contributor to shortwave radiative forcing of climate change by direct light scattering and by perturbing cloud properties and to local concentrations of atmos...
Application of positive matrix factorization in estimating aerosol secondary organic carbon in Hong Kong and its relationship with secondary sulfate
positive matrix factorization aerosol secondary organic carbon Hong Kong secondary sulfate
2008/12/30
Secondary organic carbon (SOC) is often a significant portion of organic carbon (OC) in ambient particulate matter (PM). The levels and seasonal patterns of SOC in Hong Kong were examined using more t...
Source-receptor relationships between East Asian sulfur dioxide emissions and Northern Hemisphere sulfate concentrations
Source-receptor East Asian sulfur dioxide Northern Hemisphere
2008/11/13
We analyze the effect of varying East Asian (EA) sulfur emissions on sulfate concentrations in the Northern Hemisphere, using a global coupled oxidant-aerosol model (MOZART-2). We conduct a base and f...
A semi-analytical method for calculating rates of new sulfate aerosol formation from the gas phase
semi-analytical method sulfate aerosol gas phase
2008/11/12
The formation of new aerosol from the gas phase is commonly represented in atmospheric modeling with parameterizations of the steady state nucleation rate. Present parameterizations are based on class...