搜索结果: 1-15 共查到“大气物理学 distribution”相关记录45条 . 查询时间(0.203 秒)
Phase space parametrization of rain: the inadequacy of the gamma distribution
Phase space parametrization of rain the inadequacy of gamma distribution
2012/11/23
We show that the Gamma distribution is not an adequate fit for the probability density function of drop diameters using the Kolmogorov-Smirnov goodness of fit test. We propose a different parametrizat...
Angular distribution of Bremsstrahlung photons and of positrons for calculations of terrestrial gamma-ray flashes and positron beams
Bremsstrahlung pair production analytical integration of Bethe-Heitler equation distribution of scattering angles
2012/2/28
Within thunderstorms electrons can gain energies of up to hundred(s) of MeV. These electrons can create X-rays and gamma-rays as Bremsstrahlung when they collide with air molecules. Here we calculate ...
Size Distribution of Airborne Particulate Matter and Associated Metallic Elements in an Urban Area of an Industrial City in Korea
Size distribution Metals Seasonal PM PCA Enrichment factor
2016/3/28
This study analyzed the size distribution of airborne particulate matter (PM) and 13 metallic elements associated with it.
PM samples were collected using an eight-stage cascade impactor in a busy ur...
Variability of aerosol vertical distribution in the Sahel
aerosol vertical distribution the Sahel
2010/12/28
In this work, we have studied the seasonal and inter-annual variability of the aerosol vertical distribution over Sahelian Africa for the years 2006, 2007 and 2008, characterizing the different kind o...
Seasonal variation and spatial distribution of carbonaceous aerosols in Taiwan
Seasonal variation spatial distribution carbonaceous aerosols Taiwan
2010/10/21
To investigate the physico-chemical properties of aerosols in Taiwan, an observation network was initiated in 2003. In this work, the measurements of the mass concentration and carbonaceous compositio...
The spatial distribution of mineral dust and its shortwave radiative forcing over North Africa: modeling sensitivities to dust emissions and aerosol size treatments
mineral dust shortwave radiative North Africa dust emissions aerosol size treatments
2010/9/21
A fully coupled meteorology-chemistry-aerosol model (WRF-Chem) is applied to simulate mineral dust and its shortwave (SW) radiative forcing over North Africa. Two dust emission schemes (GOCART and DUS...
On microphysical processes of noctilucent clouds (NLC): observations and modeling of mean and width of the particle size-distribution
noctilucent clouds the particle size-distribution
2010/8/16
Noctilucent clouds (NLC) in the polar summer mesopause region have been observed in Norway (69° N, 16° E) between 1998 and 2009 by 3-color lidar technique. Assuming a mono-modal Gaussian size distribu...
Spatial distribution and interannual variation of surface PM10 concentrations over eighty-six Chinese cities
Spatial distribution interannual variation eighty-six Chinese cities
2010/8/13
The spatial distribution of the aerosols over 86 Chinese cities was reconstructed from air pollution index (API) records for summer 2000 to winter 2006. PM10 (particulate matter ≤10 μm) mass concentra...
Vertically-resolved particle size distribution within and above the mixing layer over the Milan metropolitan area
Vertically-resolved particle size distribution the mixing layer
2010/8/12
Vertical aerosol profiles were directly measured over the city of Milan during three years (2005–2008) of field campaigns. An optical particle counter, a portable meteorological station and a miniatur...
High-accuracy measurements of snow Bidirectional Reflectance Distribution Function at visible and NIR wavelengths——comparison with modelling results
High-accuracy measurements snow Bidirectional Reflectance Distribution Function NIR wavelengths
2010/3/16
High-accuracy measurements of snow Bidirectional Reflectance Distribution Function (BRDF) were performed for four natural snow samples with a spectrogonio-radiometer in the 500–2600 nm wavelength rang...
The spatial distribution of the reactive iodine species IO from simultaneous active and passive DOAS observations
spatial distribution reactive iodine species IO DOAS observations
2010/3/5
We present investigations of the reactive iodine species (RIS) IO, OIO and I2 in a coastal region from a field campaign simultaneously employing active long path differential optical absorption spectr...
The influence of the vertical distribution of emissions on tropospheric chemistry
influence vertical distribution tropospheric chemistry
2009/12/31
The atmospheric chemistry general circulation model EMAC (ECHAM5/MESSy atmospheric chemistry) is used to investigate the effect of height dependent emissions on tropospheric chemistry. In a sensitivit...
The sensitivity of CO and aerosol transport to the temporal and vertical distribution of North American boreal fire emissions
CO aerosol transport North American boreal fire emissions
2009/9/14
Forest fires in Alaska and western Canada represent important sources of aerosols and trace gases in North America. Among the largest uncertainties when modeling forest fire effects are the timing and...
Distribution and sources of bioaccumulative air pollutants at Mezquital Valley, Mexico, as reflected by the atmospheric plant Tillandsia recurvata L.
bioaccumulative air pollutants Mezquital Valley Mexico
2009/9/14
Mezquital Valley (MV), a Mexican wastewater-based agricultural and industrial region, is a "hot spot" of regulated air pollutants emissions, but the concurrent unregulated ones, like hazardous metals ...
Factors controlling the distribution of ozone in the West African lower troposphere during the AMMA（African Monsoon Multidisciplinary Analysis）wet season campaign
Factors controlling ozone West African lower troposphere AMMA wet season
2009/9/2
Ozone and its precursors were measured on board the Facility for Airborne Atmospheric Measurements (FAAM) BAe 146 Atmospheric Research Aircraft during the monsoon season 2006 as part of the African Mo...