Showing papers in "Atmospheric Research in 2011"

TL;DR: In this article, the trends of the annual maximum (Tmax), minimum (Tmin) and mean (Tmean) air temperatures and precipitation (P) time series were examined in the west, south and southwest of Iran for the period 1966-2005.

TL;DR: The short-term rainfall climatology regime over Saudi Arabia is obtained from the Tropical Rainfall Measuring Mission (TRMM) data for the period 1998-2009 as mentioned in this paper, where the TRMM rainfall amounts are calibrated with respect to the rain-gauge data recorded at 29 stations across the country.

TL;DR: In this article, Li et al. measured PM 2.5 and water-soluble inorganic ions (Na +, NH 4 +, K +, Mg 2+, Ca 2+, Cl −, NO 3 − and SO 4 2− ) using battery-powered mini-volume samplers.

TL;DR: A review of the ways in which atmospheric organic nitrogen has been measured and linked to potential sources can be found in this paper, where the authors discuss some of the issues which have inhibited the widespread adoption of organic N as a routine analyte in atmospheric sampling, and identify current best practice.

TL;DR: In this article, the authors studied visibility condition trends and characteristics for the BTH (Beijing, Tianjin, and Hebei) area, meteorological data (1980-2008) were collected from over 100 ground stations.

TL;DR: In this paper, the authors explored the use of perturbation methods within the numerical weather prediction (NWP) model COSMO-DE and found that perturbations can lead to potentially useful probabilistic precipitation forecasts and should be considered as part of a future EPS design.

TL;DR: A review of the current knowledge of the role of sea ice in the climate system is presented in this paper that examines both the current state of understanding, as regards the impacts of sea-ice loss observed to date, and climate model projections, to highlight hypothesised future changes and impacts on storm tracks and the North Atlantic Oscillation.

TL;DR: In this article, the authors evaluated PM10 and PM2.5 levels, concentrations of major components, trace elements, pH, conductivity and source apportionment from samples collected during 2009 at three different locations (rural, urban and urban traffic) in Navarra (North of Spain).

TL;DR: Aerosol optical properties have been analyzed through the ground-based Aerosol Robotic Network (AERONET) over the mega city Karachi during August 2006-July 2007.

TL;DR: An overview of airborne systems for in situ measurements of aerosol particles, clouds and radiation that are currently in use on research aircraft around the world is presented in this paper, where the basic principles of operation and an extensive list of references for further reading is given.

TL;DR: In this paper, six percentile-based indices derived from daily minimum and maximum surface air temperature and daily precipitation amount at 532 meteorological observing stations were computed and compared in two periods of 1960-1989 and 1990-2007.

TL;DR: In this paper, a simple superposition model was developed to analyze the effect of the mesh characteristics on the aerodynamic collection efficiency of fog water collectors (FWC) and showed that there is a maximum ACE of the order of 20-24.5% for shade coefficients between 0.5 and 0.6.

TL;DR: In this paper, a hail storm at Villingen-Schwenningen, southwest Germany, on 28.06.2006 was simulated using the Hebrew University Cloud Model (HUCM) with spectral (bin) microphysics.

TL;DR: Wang et al. as discussed by the authors analyzed visibility, air pollution index and meteorological parameters over Nanjing during 2004 using multiple statistic methods to study the characterization of visibility and relevant affecting factors.

TL;DR: In this paper, an experimental framework for investigating the relative contribution of meteorological forcing uncertainties, initial conditions uncertainties and hydrological model parameter uncertainties in the realization of hydrologogical ensemble forecasts is presented.

TL;DR: A comprehensive study on the chemical compositions of rainwater was carried out from Jan. to Dec. in 2008 in Chengdu, a city located on the acid rain control zone of southwest China.

TL;DR: In this article, an objective overshooting top (OT) detection method using Meteosat Second Generation (MSG) Spinning Enhanced Visible and Infrared Imager (SEVIRI) infrared data is presented.

TL;DR: In this article, an unusually intense subsynoptic-scale cyclone has been documented in southeastern Italy on 26 September 2006, and sensitivity experiments to sea surface temperature (SST ) of the simulated cyclone are discussed.

TL;DR: In this article, gas and particle-phase polycyclic aromatic hydrocarbons (PAHs) were measured in air at a background site (Xiaolongmen), two rural village sites (Gubeikou and Donghe), and at an urban site (Beijing) in the North China Plain from September 2007 to August 2008.

TL;DR: In this paper, the seasonal variation of the aerosol single scattering albedo, backscatter fraction and Angstrom exponent changes from site to site but the timing can be related to aerosol sources and transport processes known to impact the individual sites.

TL;DR: In this paper, a cost-efficient rain radar and a network of high-resolution rain gauges are used to assess the real complexity of rainfall distribution and the meteorological processes of rainfall formation.

TL;DR: In this paper, the authors used the chemical mass balance model (CMB8, Ver. 8.o) to quantify the possible sources of particulate matter (PM) in the city of Hyderabad.

TL;DR: In this article, the PM2.5 emissions from seven species of trees grown in the Portuguese forest were analysed for organic and elemental carbon (OC/EC), water soluble ions (Na+, NH4+, K+, Mg2+, Ca2+, Cl−, NO3− and SO42−) and 67 elements.

TL;DR: In this paper, a Monte-Carlo-based simulation was designed to propagate the uncertainties of the measurement of spheres' diameters into the estimation of rainfall accumulations, which improved the agreement among disdrometers, although apparently overcorrected the accumulation for one of the instruments.

TL;DR: In this article, the concentrations of polycyclic aromatic hydrocarbons (PAHs) in PM 2.5 and TSP were measured in Guangzhou during a typical haze episode.

TL;DR: In this paper, the effect of sea surface temperature (SST) anomalies in the central-eastern Pacific associated with the El Nino-Southern Oscillation (ENSO) act as predominant forcing of the All India Rainfall Index variability.

TL;DR: In this paper, the chemical mass balance model was applied to atmospheric polycyclic aromatic hydrocarbons (PAHs) in Istanbul, Turkey, and a total of 326 airborne samples were collected and analyzed for 16 PAHs and Total Suspended Particles (TSP) in the September 2006-December 2007 period at three monitoring stations: Yildiz, DMO (urban sites) and Kilyos (rural site).

TL;DR: In this article, the average dissolved and particle phase wet deposition flux values were determined to be 7.4 ± 7.3 μg/m2 day and 21 ± 30 μg/ m2 day, respectively.

TL;DR: This paper summarizes the COST 731 activities and its context, provides a review of the recent progress made in dealing with uncertainties in flood forecasting, and sets the scene for the papers of this Thematic Issue.

TL;DR: In this article, a comparative study on the aerosol optical properties of two severe pollution phenomena occurred in Beijing, i.e., dust and haze-fog, was analyzed using solar and sky radiance measurements from 2001 to 2007.