搜索结果: 1-15 共查到“理学 Black carbon”相关记录40条 . 查询时间(0.12 秒)
Black carbon persists in snow and ice around the world
Black carbon persists snow ice around the world
2017/7/24
A new CU Boulder study comparing dissolved black carbon deposition on ice and snow in ecosystems around the world (including Antarctica, the Arctic and alpine regions of the Himalayas, Rockies, Andes ...
Development of a parameterization of black carbon aging for use in general circulation models
parameterization of black carbon aging general circulation models
2014/12/16
A parameterization of black carbon (BC) aging in the atmosphere is developed for use in general circulation models (GCMs) that separately treat hydrophobic BC and hydrophilic BC modes but do not expli...
Air pollution studies in terms of PM2.5, PM2.5-10, PM10, lead and black carbon in urban areas of Antananarivo - Madagascar
Air pollution studies terms of PM2.5 black carbon urban areas of Antananarivo Madagascar Atmospheric and Oceanic Physics
2012/4/20
Atmospheric aerosols or particulate matters are chemically complex and dynamic mixtures of solid and liquid particles. Sources of particulate matters include both natural and anthropogenic processes. ...
Discharge of dissolved black carbon from a fire-affected intertidal system
Discharge of dissolved black carbon from a fire-affected intertidal system
2014/4/4
We report substantial tidal fluxes of dissolved black carbon (DBC) in a fire-affected marsh in the northern Gulf of Mexico. DBC was molecularly determined as benzenepolycarboxylic acids in a tidal cre...
Impact of Nitrogen Oxides, Volatile Organic Compounds and Black Carbon on Atmospheric Ozone Levels at a Semi Arid Urban Site in Hyderabad
Trace gas Ozone Volatile organic compounds Black carbon Meteorology and oxides of nitrogen.
2016/3/25
The surface level ozone (O3), nitrogen oxides (NOx = NO2 + NO), volatile organic compounds (VOCs), black carbon (BC)
and meteorological parameters were continuously monitored for the period of one ye...
Quantifying immediate radiative forcing by black carbon and organic matter with the Specific Forcing Pulse
black carbon organic matter the Specific Forcing Pulse
2011/2/25
Climatic effects of short-lived climate forcers (SLCFs) differ from those of long-lived greenhouse gases, because they occur rapidly after emission and because they depend upon the region of emission....
Detecting the influence of fossil fuel and bio-fuel black carbon aerosols on near surface temperature changes
fossil fuel bio-fuel black carbon aerosols surface temperature
2011/2/24
Past research has shown that the dominant influence on recent global climate changes is from anthropogenic greenhouse gas increases with implications for future increases in global temperatures. One m...
Using measurements for evaluation of black carbon modeling
measurements black carbon modeling
2011/1/20
The ever increasing use of air quality and climate model assessments to underpin economic, public health, and environmental policy decisions makes effective model evaluation critical. This paper discu...
Aircraft observations of enhancement and depletion of black carbon mass in the springtime Arctic
Aircraft observations black carbon mass the springtime Arctic
2010/10/21
Understanding the processes controlling black carbon (BC) in the Arctic is crucial for evaluating the impact of anthropogenic and natural sources of BC on Arctic climate. Vertical profiles of BC mass ...
Black carbon measurements in the boundary layer over western and northern Europe
Black carbon measurements the boundary layer western and northern Europe
2010/10/11
Europe is a densely populated region that is a significant global source of black carbon (BC) aerosol, but there is a lack of information regarding the physical properties and spatial/vertical distrib...
Long-term trends of black carbon and sulphate aerosol in the Arctic: changes in atmospheric transport and source region emissions
black carbon sulphate aerosol the Arctic atmospheric transport source region emissions
2010/10/11
To reveal the contribution of different source regions on these trends, we used a cluster analysis of the output of the Lagrangian particle dispersion model FLEXPART run backward in time from the meas...
Aerosol mass and black carbon concentrations, a two year record at NCO-P (5079 m, Southern Himalayas)
Aerosol mass black carbon NCO-P
2010/9/21
Aerosol mass and the absorbing fraction are important variables, needed to constrain the role of atmospheric particles in the Earth radiation budget, both directly and indirectly through CCN activatio...
Black carbon semi-direct effects on cloud cover: review and synthesis
Black carbon semi-direct effects cloud cover
2010/8/25
Absorbing aerosols (AAs) such as black carbon (BC) or dust absorb incoming solar radiation, perturb the temperature structure of the atmosphere, and influence cloud cover. Previous studies have descri...
Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat
black carbon deposition the Sierra Nevada snow pack snow pack retreat
2010/8/16
Modeling studies show that the darkening of snow and ice by black carbon deposition is a major factor for the rapid disappearance of arctic sea ice, mountain glaciers and snow packs. This study provid...
Single particle characterization of black carbon aerosols at a tropospheric alpine site in Switzerland
black carbon aerosols a tropospheric alpine site Switzerland
2010/8/16
The refractory black carbon (rBC) mass, size distribution (190–720 nm) and mixing state in sub-micron aerosols were characterized from late February to March 2007 using a single particle incandescence...