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Showing papers in "Atmospheric Research in 2015"


Journal ArticleDOI
TL;DR: In this paper, the authors present a review of the recent advances in the scientific understanding of heatwaves, including how heatwaves are measured, their driving mechanisms, observed and projected changes, and quantifying the anthropogenic influence behind these changes.

455 citations


Journal ArticleDOI
TL;DR: In this paper, a computationally simple, fast and efficient non-linear algorithm known as extreme learning machine (ELM) for the prediction of Effective Drought Index (EDI) in eastern Australia using input data trained from 1957-2008 and the monthly EDI predicted over the period 2009-2011 The predictive variables for the ELM model were the rainfall and mean, minimum, minimum and maximum air temperatures, supplemented by the large-scale climate mode indices of interest as regression covariates, namely the Southern Oscillation Index, Pacific DecadalOscillation, Southern Ann

243 citations


Journal ArticleDOI
TL;DR: In this paper, the authors tested the feasibility of the ANN as a data-driven model for predicting the monthly Standardized Precipitation and Evapotranspiration Index (SPEI) for eight candidate stations in eastern Australia using predictive variable data from 1915 to 2005 (training) and simulated data for the period 2006-2012.

209 citations


Journal ArticleDOI
TL;DR: In this paper, the authors investigated the formation and evolution mechanism of the regional haze in Beijing by analyzing the process of a severe haze episode that occurred from 1 to 31 January 2013, where the mass concentration of PM 2.5 and its chemical components were simultaneously measured at the Beijing urban atmospheric environmental monitoring station.

178 citations



Journal ArticleDOI
TL;DR: In this article, the authors present a set of challenging issues and specific recommendations for a scientific apportionment of particulate sources in different geographical regions of India, including methodological weakness, inappropriate sample size, implications of secondary aerosols and inadequate emission inventories.

158 citations


Journal ArticleDOI
TL;DR: Salio et al. as mentioned in this paper presented a study on Estudios de Clima and its impact on the performance of the Atmosfera at the Universidad de Buenos Aires.

139 citations


Journal ArticleDOI
TL;DR: In this article, the 24-hour PM2.5 samples were collected at the site of East China University of Science and Technology (ECUST) in Shanghai from 2011 to 2012, representing winter, spring, summer and autumn, respectively.

135 citations


Journal ArticleDOI
TL;DR: In this article, the trends in extreme events were investigated using a Mann-Kendall non-parametric method at 39 stations in the Songhua River Basin (SHB) during 1960-2013.

127 citations


Journal ArticleDOI
TL;DR: In this article, the seasonal and spatial characteristics of PM2.5 and its chemical composition in the Mediterranean Basin have been studied over a 1-year period (2011-2012) in five European Mediterranean cities: Barcelona (BCN), Marseille (MRS), Genoa (GEN), Venice (VEN), and Thessaloniki (THE).

125 citations


Journal ArticleDOI
TL;DR: In this paper, two reanalysis datasets, a satellite algorithm and a scheme that combines surface observations with satellite estimations were selected for studying rainfall in the following areas of Bolivia: the central Andes, Altiplano, southwestern Amazonia, and Chaco.

Journal ArticleDOI
TL;DR: In this article, two products generated by the Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) are validated for the Peruvian Andes.

Journal ArticleDOI
TL;DR: In this paper, the authors applied the discrete wavelet transform (DWT), the Mann-Kendall (MK) trend test, and the sequential MK test to temperature series at different time scales to detect the long-term trends (1956-2010) in synoptic-scale surface temperatures in Iran, as well as the dominant time scales affecting these temperature time series.

Journal ArticleDOI
TL;DR: In this article, the authors show that a supercell in its mature stage consists of a rotating updraft (mid-altitude mesocyclone) and a downdraft that coexists symbiotically with the updraft.

Journal ArticleDOI
TL;DR: In this paper, an intercomparison of eight different microphysics parameterization schemes available in the Weather Research and Forecasting (WRF) model and an analysis of the sensitivity of predicted precipitation to horizontal resolution are presented.

Journal ArticleDOI
TL;DR: In this paper, high mass and time-resolved measurements of seven VOCs using a PTR-TOF-MS instrument at an urban site of India during winter 2013 were performed.

Journal ArticleDOI
TL;DR: In this paper, high-resolution measurements of particulate matter (PM: PM2.5 and PM10) were made at three different sites across Delhi (CCRI: a highly traffic site, IMD: a less traffic site and IITM: an urban background site) from 1st December 2011 to 30th June, 2013.

Journal ArticleDOI
TL;DR: In this paper, the authors evaluated the effect of emission control measures on the changes of air pollutants in Beijing and its surroundings during the 2014 Asia-Pacific Economic Cooperation (APEC) Summit held in Beijing.

Journal ArticleDOI
TL;DR: In this article, the spectral dependence of aerosol absorption and scattering properties is analyzed in detail for the period from June 2008 to December 2010 over Granada, South-eastern Iberian Peninsula.

Journal ArticleDOI
TL;DR: A nearly two-year ice-free time measurement (2011-2012) of energy flux and radiation balance using the eddy covariance method over Lake Ngoring, Tibetan Plateau was performed in this article.

Journal ArticleDOI
TL;DR: In this paper, a sampling campaign was carried out for one week in the Liberdade Avenue tunnel (Braga, Portugal), where the monitoring of gaseous pollutants (CO 2, CO, NO x ) and suspended particulate matter (PM) at two sites, one in the tunnel and another in an urban background location.

Journal ArticleDOI
TL;DR: Wang et al. as mentioned in this paper collected PM2.5 samples from five different cooking activities, namely, meat roasting, cafeteria frying, fish roasting and snack-street boiling, and cafeteria boiling in Ya'an, China.

Journal ArticleDOI
TL;DR: In this paper, the authors explored the interdecadal and seasonal variability of the urban heat island (UHI) intensity in the city of Athens and found that the interaction between heat waves and heat island in Athens results to pronounced amplification of nocturnal UHI intensity under exceptionally hot weather.

Journal ArticleDOI
TL;DR: Based on the daily precipitation data at 134 stations between 1961 and 2013, this article analyzed the spatial and temporal patterns of the dry and wet conditions in the Huai River Basin through the statistical analysis of the rainfall stations' annual and seasonal standard precipitation index (SPI) series.

Journal ArticleDOI
TL;DR: In this article, a comparison and evaluation of six daily 0.25° × 0.75° high resolution precipitation data sets (PERSIANN, CMORPH-RAW and TMPA-V7) was performed during years 2000 to 2011 in Urmia basin of Iran and the local daily rainfall gauge observations were considered as the reference data set.

Journal ArticleDOI
TL;DR: Li et al. as discussed by the authors measured chemical compositions in rainwater samples collected during 2011-2012 from two representative cities, Beijing in north China and Chizhou city in south China, and found that rainwater was highly acidic with a volume-weighted mean (VWM) pH of 4.56, ranging from 3.77 to 5.67.

Journal ArticleDOI
TL;DR: In this paper, the potential of satellite rainfall products combined with hydrological modelling to monitor these floods is analyzed and compared over a 125,000 km2 area in the vicinity of Niamey, where local runoff supplies the first flood.

Journal ArticleDOI
TL;DR: In this paper, high resolution measurements of high resolution concentrations of nitric oxide (NO), nitrogen dioxide (NO2), oxides of nitrogen (NOx), and Ozone (O3) were measured at a urban site (urban background) in New Delhi, India for a period of two years from September 2010 to August 2012.

Journal ArticleDOI
TL;DR: In this article, an orographic/nonorographic rainfall classification scheme was incorporated into the Global Satellite Mapping of Precipitation algorithm for passive microwave radiometers, which improved rainfall estimation over the entire Asian region.

Journal ArticleDOI
TL;DR: In this paper, the authors studied the size distribution of carbonaceous aerosols at the remote and pristine site, Nam Co Monitoring and Research Station for Multisphere Interactions, in the inland Tibetan Plateau (TP) based on collected size-segregated aerosols during 2012.