搜索结果: 1-15 共查到“大气物理学 anthropogenic”相关记录16条 . 查询时间(0.171 秒)
Anthropogenic imprints on nitrogen and oxygen isotopic composition of precipitation nitrate in a nitrogen-polluted city in southern China
nitrogen oxygen isotopic precipitation nitrate a nitrogen-polluted city southern China
2011/2/25
Nitric acid (HNO3) or nitrate (NO3−) is the dominant sink for reactive nitrogen oxides (NOx = NO + NO2) in the atmosphere. In many Chinese cities, HNO3 is becoming a significant contributor to a...
Primary anthropogenic aerosol emission trends for China, 1990–2005
anthropogenic primary aerosol China a dynamic methodology
2011/2/25
An inventory of anthropogenic primary aerosol emissions in China was developed for 1990–2005 using a technology-based approach. Taking into account changes in the technology penetration within industr...
A review of the anthropogenic influence on biogenic secondary organic aerosol
the anthropogenic influence biogenic secondary organic aerosol
2011/1/19
Because of the climate and air quality effects of organic aerosol, it is important to quantify the influence of anthropogenic emissions on the aerosol burden, both globally and regionally, and both in...
The contribution of anthropogenic aerosols to aerosol light-scattering and CCN activity in the California coastal zone
anthropogenic aerosols aerosol light-scattering CCN activity the California coastal zone
2010/8/16
Aircraft-based measurements of aerosol light-scattering coefficient, cloud condensation nuclei (CCN) measured directly or by proxy, and aerosol chemical composition are reported for three different ye...
Global mercury emissions to the atmosphere from anthropogenic and natural sources
Global mercury anthropogenic natural sources
2010/8/13
This paper provides an up-to-date assessment of global mercury emissions from anthropogenic and natural sources. On an annual basis, natural sources account for 5207 Mg of mercury released to the glob...
Slower CCN growth kinetics of anthropogenic aerosol compared to biogenic aerosol observed at a rural site
CCN growth kinetics anthropogenic aerosol biogenic aerosol
2010/1/18
Growth rates of water droplets were measured with a static diffusion cloud condensation chamber in May–June 2007 at a rural field site in Southern Ontario, Canada, 70 km north of Toronto. The observat...
Evaluating simulated primary anthropogenic and biomass burning organic aerosols during MILAGRO: implications for assessing treatments of secondary organic aerosols
primary anthropogenic biomass organic aerosols MILAGRO secondary organic aerosols
2009/9/2
Simulated primary organic aerosols (POA), as well as other particulates and trace gases, in the vicinity of Mexico City are evaluated using measurements collected during the 2006 Megacity Initiative: ...
Particulate absorption of solar radiation: anthropogenic aerosols vs. dust
Particulate absorption solar radiation anthropogenic aerosols vs. dust
2009/6/22
Particulate solar absorption is a critical factor in determining the value and even sign of the direct radiative forcing of aerosols. The heating to the atmosphere and cooling to the Earth's surface c...
Anthropogenic influence on SOA and the resulting radiative forcing
Anthropogenic influence SOA resulting radiative forcing
2009/5/6
The effect of chemical changes in the atmosphere since the pre-industrial period on the distributions and burdens of Secondary Organic Aerosol (SOA) has been calculated using the off-line aerosol chem...
Possible influence of anthropogenic aerosols on cirrus clouds and anthropogenic forcing
anthropogenic aerosols cirrus clouds anthropogenic forcing
2009/3/13
Cirrus clouds have a net warming effect on the atmosphere and cover about 30% of the Earth's area. Aerosol particles initiate ice formation in the upper troposphere through modes of action that includ...
Gas phase precursors to anthropogenic secondary organic aerosol: detailed observations of 1,3,5-trimethylbenzene photooxidation
Gas phase precursors anthropogenic secondary organic aerosol 1,3,5-trimethylbenzene photooxidation
2009/3/12
A series of photooxidation experiments were conducted in an atmospheric simulation chamber in order to investigate the oxidation mechanism and secondary organic aerosol (SOA) formation potential of th...
The impact of anthropogenic chlorine emissions, stratospheric ozone change and chemical feedbacks on stratospheric water
anthropogenic chlorine emissions stratospheric ozone change chemical feedbacks
2009/2/25
Mixing ratios of water (H2O) in the stratosphere appear to increase due to increased input of H2O and methane from the troposphere and due to intensified oxidation of CH4 in the stratosphere, but many...
A simple modeling approach to study the regional impact of a Mediterranean forest isoprene emission on anthropogenic plumes
Mediterranean forest isoprene emission anthropogenic plumes
2009/2/12
Research during the past decades has outlined the importance of biogenic isoprene emission in tropospheric chemistry and regional ozone photo-oxidant pollution. The first part of this article focuses ...
The influence of natural and anthropogenic secondary sources on the glyoxal global distribution
anthropogenic secondary sources glyoxal
2008/11/17
Glyoxal, the smallest dicarbonyl, which has recently been observed from space, is expected to provide indications on volatile organic compounds (VOC) oxidation and secondary aerosol formation in the t...
Local anthropogenic impact on particulate elemental carbon concentrations at Summit, Greenland
particulate elemental carbon concentration Summit Greenland
2008/11/6
Summit, Greenland is a remote Arctic research station allowing for field measurements at the highest point of the Greenland Ice Sheet. Due to the current reliance on diesel generators for electricity ...