搜索结果: 16-30 共查到“大气科学 Black carbon”相关记录34条 . 查询时间(0.132 秒)
A trajectory analysis of atmospheric transport of black carbon aerosols to Canadian high Arctic in winter and spring (1990–2005)
atmospheric transport black carbon aerosols Canadian high Arctic
2010/8/13
Black carbon (BC) particles accumulated in the Arctic troposphere and deposited on snow have been calculated to have significant effects on radiative forcing of the Arctic regional climate. Applying c...
Black carbon aerosols and the third polar ice cap
Black carbon aerosols the third polar ice cap
2010/8/13
Recent thinning of glaciers over the Himalayas (sometimes referred to as the third polar region) have raised concern on future water supplies since these glaciers supply water to large river systems t...
Impact of brown and clear carbon on light absorption enhancement, single scatter albedo and absorption wavelength dependence of black carbon
brown and clear carbon light absorption enhancement single scatter albedo black carbon
2010/8/12
The presence of clear coatings on atmospheric black carbon (BC) particles is known to enhance the magnitude of light absorption by the BC cores. Based on calculations using core/shell Mie theory, we d...
Sources of uncertainties in modelling black carbon at the global scale
black carbon the global scale
2010/8/12
Our understanding of the global black carbon (BC) cycle is essentially qualitative due to uncertainties in our knowledge of its properties. This work investigates two source of uncertainties in modell...
Continental scale Antarctic deposition of sulphur and black carbon from anthropogenic and volcanic sources
Continental scale Antarctic deposition sulphur black carbon anthropogenic and volcanic sources
2010/3/16
While Antarctica is often described as a pristine environment, there is an increasing awareness of the potential threats from local pollution sources including tourist ships and emissions associated w...
Black carbon over Mexico: the effect of atmospheric transport on mixing state, mass absorption cross-section, and BC/CO ratios
Black carbon Mexico atmospheric transport BC/CO ratios
2010/1/18
A single particle soot photometer (SP2) was operated on the NCAR C-130 during the MIRAGE campaign (part of MILAGRO), sampling black carbon (BC) over Mexico. The highest BC concentrations were measured...
Corrigendum to "Evaluation of black carbon estimations in global aerosol models" published in Atmos. Chem. Phys., 9, 9001-9026, 2009
Corrigendum to "Evaluation of black carbon estimations in global aerosol models" published in Atmos. Chem. Phys., 9, 9001-9026, 2009
2010/1/18
Corrigendum to "Evaluation of black carbon estimations in global aerosol models" published in Atmos. Chem. Phys., 9, 9001-9026, 2009.
Evaluation of black carbon estimations in global aerosol models
black carbon estimations global aerosol models
2009/12/3
We evaluate black carbon (BC) model predictions from the AeroCom model intercomparison project by considering the diversity among year 2000 model simulations and comparing model predictions with avail...
Attribution of aerosol light absorption to black carbon, brown carbon, and dust in China – interpretations of atmospheric measurements during EAST-AIRE
aerosol light carbon dust atmospheric measurements EAST-AIRE
2009/3/31
Black carbon, brown carbon, and mineral dust are three of the most important light absorbing aerosols. Their optical properties differ greatly and are distinctive functions of the wavelength of light....
Simulating the global atmospheric black carbon cycle: a revisit to the contribution of aircraft emissions
global atmospheric black carbon cycle aircraft emissions
2009/3/10
The black carbon (BC) burden of the upper troposphere and lowermost stratosphere (UTLS) is investigated with the general circulation model (GCM) ECHAM4. The special focus is the contribution of aircra...
Vehicle fleet emissions of black carbon, polycyclic aromatic hydrocarbons, and other pollutants measured by a mobile laboratory in Mexico City
Vehicle fleet emissions black carbon polycyclic aromatic hydrocarbons Mexico City
2009/2/19
Black carbon (BC) and polycyclic aromatic hydrocarbons (PAHs) are of concern due to their effects on climate and health. The main goal of this research is to provide the first estimate of emissions o...
Black carbon ageing in the Canadian Centre for Climate modelling and analysis atmospheric general circulation model
Black carbon Canadian Centre atmospheric general circulation model
2009/2/12
Black carbon (BC) particles in the atmosphere have important impacts on climate. The amount of BC in the atmosphere must be carefully quantified to allow evaluation of the climate effects of this type...
Black carbon or brown carbon? The nature of light-absorbing carbonaceous aerosols
Black carbon brown carbon light-absorbing carbonaceous aerosols
2009/1/13
Although the definition and measurement techniques for atmospheric "black carbon" ("BC") or "elemental carbon'' ("EC") have long been subjects of scientific controversy, the recent discovery of light...
Scavenging of black carbon in mixed phase clouds at the high alpine site Jungfraujoch
black carbon mixed phase clouds alpine site Jungfraujoch
2008/12/5
The scavenging of black carbon (BC) in liquid and mixed phase clouds was investigated during intensive experiments in winter 2004, summer 2004 and winter 2005 at the high alpine research station Jungf...
Estimation of a “radiatively correct” black carbon specific absorption during the Mexico City Metropolitan Area (MCMA) 2003 field campaign
radiatively correct black carbon Mexico City Metropolitan Area
2008/12/4
During the Mexico City Metropolitan Area (MCMA) field campaign of 2003, measurements of the shortwave radiation field allowed the inference of the black carbon (BC) specific absorption, αλ, defined a...