National Repository of Grey Literature 39 records found  beginprevious30 - 39  jump to record: Search took 0.02 seconds. 
Characteristics Comparison of Organic Aerosols in Winter and Summer Season in Prague
Makeš, Otakar ; Vodička, Petr ; Schwarz, Jaroslav
This study provides aerosol characteristics of two campaigns. The first one took places in July 2010 at Prague suburban site Suchdol and the second one took place in December 2010 at the same place. The objective of this study is to compare the results and find out differents between summer and winter aerosols.
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Plný tet: SKMBT_C22012102615320 - Download fulltextPDF
Study of Organic Carbon with Different Volatility
Vodička, Petr ; Schwarz, Jaroslav
This work characterizes diurnal trends of OC fractions at Prague suburban site during different seasons over the whole year. Moreover, owing to the parallel measurements at suburban site together with Czech background station Košetice during heating and non-heating season we found which OC fractions are typical for urban and rural environments and their diurnal trends.
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Plný tet: SKMBT_C22012102615342 - Download fulltextPDF
Statistical Evaluation of New Particles Formation Events at Košetice Station
Zíková, Naděžda ; Ždímal, Vladimír
In this work, we present a basic statistical evaluation of NPF at Košetice background station in the region of middle Europe.Variability between the two years is not high, especially ratio of NPF events to all classifiable days varies only by several percents between the two years. Results from Košetice station are very similar to those from Hyytiala station (Finland), despite different geographical location and different time periods.
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Plný tet: SKMBT_C22012102615331 - Download fulltextPDF
SMPS Spectra during Various Meteorological Conditions
Zíková, Naděžda ; Ždímal, Vladimír
This work describes first results of categorization of aerosol PSD according to the various meteorological conditions connected to atmospheric humidity.
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Chemical Composition of PM2.5 at Rural Backround Site Košetice
Schwarz, Jaroslav ; Havránek, Vladimír
PM2.5 generally represents fine fraction of atmospheric aerosol. Fine particles may remain in the atmosphere for days or even weeks and therefore they may be transported over long distances. Moreover, they may increase the background levels of atmospheric aerosol mass far from their origin. They have important adverse health effects and in the same time, they influence climate due to their direct and indirect effects on Earth radiative balance. To know the origin of PM2.5 aerosol, its chemical composition can serve as the diary of contacts with aerosol sources and transformations. Therefore it is necessary to study PM2.5 chemical composition if the fine aerosol sources should be revealed. A rural background site study can serve as a basis enabling to determine the real influence of larger sources like cities or an industry.
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Long Time Measurement of Aerosol Hydroscopicity at Košetice Backround Station
Ondráček, Jakub ; Vodička, Petr
This work describes the design of the LACP HTDMA and some of the results obtained during long time measurement at Košetice background station (Czech Republic), where it was deployed within the frame of two EU projects (EUSAAR and EUCAARI). The measurement campaign lasted from May 2008 until September 2009 with smaller or larger gaps in the data coverage.
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Diurnal Trends of Carbonaceous Aerosols at Prague Suburban Station during Different Seasons
Vodička, Petr ; Schwarz, Jaroslav
This work offers insight into diurnal oscillations of EC and OC at Prague suburban site (Central Europe) during different seasons. The observed seasonal trends were compared with correlations for gaseous pollutants and meteorological variables and used to characterize the origin of these aerosols.
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Analysis of Near Real Time Data on Particle Size Distribution in Atmospheric Aerosol and Their Presentation in International Databases.
Wagner, Zdeněk ; Fridrich, Miroslav ; Schwarz, Jaroslav ; Ždímal, Vladimír
One of the objectives of the international project EUSAAR was the calibration of measuring instruments, and standardization of methods of measurement of quantities that are related to the air quality. Formats for data exchange and storage were also standardized and infrastructure for the transmission of data from all European stations to the central database in near real time (NRT) was developed. Centrally available data can serve theoreticians to develop and test models of the atmosphere, the data provided in near real time can be used for improving the quality of short-term weather forecasting and risk assessment for unusual events (volcanic eruptions, release of pollutants from factories).
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