Showing papers in "Atmospheric Research in 2006"

TL;DR: In this paper, the authors used ICP-AES to identify metal constituents of ambient PM 10 (particulate matter which passes through a size selective impactor inlet with a 50% efficiency cut-off at 10 μm aerodynamic diameter) at residential and industrial sites of an urban region of Kolkata during November 2003 to November 2004.

TL;DR: Logan, Utah, USA, had the nation's worst air pollution on 15 January, 2004, due to geographical, meteorological, and environmental aspects of Cache Valley as discussed by the authors.

TL;DR: In this article, the authors investigated the effect of urbanized modification on cloud structure and precipitation distribution in a severe convective precipitation system on June 4, 2003 in Beijing City by using the PSU/NCAR Mesoscale Modeling System (MM5).

TL;DR: Wang et al. as discussed by the authors investigated the seasonal variation of polycyclic aromatic hydrocarbons (PAHs) in the urban atmosphere of Guangzhou, China and found that PAHs exhibit distinct seasonal variation.

TL;DR: In this paper, the authors describe the representation of cloud chemistry and scavenging processes in a new multiple-pollutant (unified) regional air quality modelling system, AURAMS, and examine the impact of aqueous-phase oxidation on regional aerosols (primarily sulphate) both in terms of mass and size distribution.

TL;DR: In this paper, the authors investigated the correlation of visibility with chemical composition of Kaohsiung aerosols and developed a stepwise multiple linear regression model to elucidate the influence of aerosol species on visibility impairments.

TL;DR: The Balanced Scanning Mobility Analyzers (BSMA) as discussed by the authors is one of the most widely used mobility analyzers for atmospheric ion measurements, which is based on an aspiration condenser connected as an arm of balanced bridge.

TL;DR: AERONET sun photometer measurements performed at five different sites of the Central Mediterranean during strong Saharan dust outbreaks are used to characterize optical and physical properties of dust particles.

TL;DR: In this paper, the potential sources of pollutants were reconciled using carbon preference index (CPI) values of n -alkanes and diagnostic ratios of PAHs, which indicated that fossil fuel combustions were the most important source of organic aerosols in the urban area.

TL;DR: A systematic analysis of surface ozone and its precursor gases observed in a semi-arid region centered at Anantapur is presented in this article, where ozone levels were highest during the winter and summer period and lowest during the monsoon.

TL;DR: In this paper, a high-resolution Regional Atmospheric Modeling System (RAMS) model was designed to investigate the sea fog case and its evolutionary process and environmental conditions that led to the fog formation by using GOES-9 visible satellite imagery and sounding observations.

TL;DR: In this article, a review of the theory and measurements of transport processes between small particles and the surrounding gas is provided, and a growing body of evidence that accommodation coefficients are of order unity in many cases, but coefficients smaller than 0.01 are still reported.

TL;DR: In this paper, the authors focused on the initiation and transport processes as well as the model representation of convective systems above low mountain ranges in central Europe and showed that the operationally used closure for convection parameterization depends on the large-scale humidity convergence and on turbulent fluxes of latent heat at the surface.

TL;DR: In this paper, a simplified version of the model of marine stratocumulus clouds developed by Bower, Jones and Choularton was used to examine the sensitivity of the albedo-enhancement global warming mitigation scheme proposed by Latham [Latham, J., 1990.

TL;DR: In this paper, the fall velocity of graupel and of snowflakes of different riming degree and consisting of different crystal types is investigated, and it is shown that the average variation of fall velocity for a given snowflake size amounts to ± 0.3 − 0.7 m s − 1.

TL;DR: In this article, the authors investigated the representation of cloud microphysical processes in cloud resolving models and the effects of different characteristics of cloud condensation nuclei (CCN) on the evolution of deep convective storms.

TL;DR: In this article, the metallic elements associated with atmospheric particulate matter on a dry deposition plate, a TE-PUF high-volume air sampler and a universal air sampling sampler were characterized.

TL;DR: A water surface sampler was used to collect dry deposition and rainwater samples to represent the wet deposition during the rainy period of the year in Izmir, Turkey on different days in 2003 and 2004 as mentioned in this paper.

TL;DR: In this paper, the authors identify to what degree variability of precipitation in Spain can be attributed to variations in the dominating atmospheric circulation patterns, using stepwise regression to investigate the relative importance of the predictors.

TL;DR: In this article, the authors used the Proudman-Pearson stream function for numerical integration to obtain particle trajectories, that are determined by the complex interplay of electrical, gravitational and phoretic forces together with inertia.

TL;DR: In this article, a new method of moments was developed and tested to determine the three gamma DSD parameters, which are less sensitive to the underestimation of small drops in the JW disdrometer, and validated by comparing the observed rainfall rates with the computed ones from the fitted distribution, using two classical expressions for the hydrometeor terminal velocity.

TL;DR: In this article, the authors measured fog and rain water chemistry at the summit of Mt Fuji, the highest peak in Japan, as well as at Tarobo, the ESE slope of Mt Fuji in September 2002.

TL;DR: In this article, a spectral cloud microphysical model with one and two dimensional fixed grids is presented, and sensitivity studies for different parameters (time step, grid resolution) and model configurations are carried out.

TL;DR: In this article, transmission electron microscopy (TEM) analysis revealed that a significant fraction of these former droplets enclose mineral-dust particles as well as sea salt, soot, and fly ash.

TL;DR: In this paper, three aspects related to the air turbulence and stochastic coalescence are considered in an attempt to resolve the open question of how rain forms in warm cumulus as rapidly as it has sometimes been observed.

TL;DR: In this paper, the charging state of atmospheric nanoparticles was estimated through simultaneous measurements of aerosol size distribution and air ions mobility distribution with the aim to elucidate the formation mechanisms of atmospheric aerosols.

TL;DR: A TSP sampler was employed using glass and quartz fiber filters to collect air samples in the metropolitan area of Bursa, Turkey in 2003 as mentioned in this paper, and the measured concentrations of the trace elements were within the ranges of previously reported values obtained from different places including Turkey, Argentina, Spain, Korea, and Brazil.

TL;DR: In this article, a two-stage neural network (model I) was developed and used to predict ozone concentrations from meteorological conditions, which can capture the complex nonlinear concentration-meteorology relationship.

TL;DR: In this article, the authors presented a new radiative transfer code SCIAPOL_1.0 for a plane-parallel turbid slab illuminated by the monodirectional wide beam.

TL;DR: In this paper, low-molecular-weight carbonyl compounds, generated by photochemical reactions in the atmosphere and found in the exhaust of motor vehicles, have been detected and measured in a suburban site 30 km northwest of Tokyo metropolitan area.