BACKGROUND Fine particulate matters with aerodynamic diameters smaller than 2.5 micrometers (PM2.5) have been a critical environmental problem in China due to the rapid road vehicle growth in recent years. To date, most methods available to estimate traffic contributions to ambient PM2.5 concentration are often hampered by the need for collecting data on traffic volume, vehicle type and emissio...

GNSS meteorology is the remote sensing of the atmosphere (particularly troposphere) using Global Navigation Satellite Systems (GNSS) to deliver information about its state. The two currently available navigation satellite systems are the Global Positioning System (GPS) and the GLObal’naya NAvigatsionnaya Sputnikovaya Sistema (GLONASS) maintained by the United States and Russia, respectively. Th...

This multidisciplinary research project applies statistical and neural models to analyse the immision values of urban atmospheric pollution. Data collection was from the network of pollution measurement stations in the Spanish Autonomous Region of Castile-Leon. Six meteorological parameters and a pollution measurement station in the city of Burgos were used to complete the study in 2007, within...

Given the uneven distribution of sounding and automatic weather stations throughout the Fujian province of China, a method for the extension of meteorological elements from point data to a three dimensional field is proposed, which can be used for hail detection and other weather forecasts. Considering the temperature and air pressure as the classic meteorological elements, these are extended t...

To obtain fundamental information for assessing water resources and predicting natural hazards caused by heavy rains, rain precipitation data in central Japan have been analyzed statistically and geostatistically using data of AMeDAS (Automated Meteorological Data Acquisition System) established by Meteorological Agency of Japan. The study area is the mountainous Chubu and plain Kanto districts...

Abstract Crowdsourced meteorological observations are becoming more prevalent and in some countries their spatial resolution already far exceeds that of traditional networks. However, due to the larger uncertainty associated with these observations, quality control (QC) is an essential step. Spatial QC methods especially well suited for such dense networks since they utilize information from ne...

greece has experienced particularly severe and frequent forest fires during summer 2007 together with exceptionally dry meteorological conditions culminated in distinct heat waves. the present study analyzes the time pattern of daily values of two fire risk indices (nesterov and angstrom) based on meteorological data made available for a number of gauging stations between 1 june and 31 august o...