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Soluble and insoluble pollutants in fog and rime water samples
Fišák, Jaroslav ; Stoyanova, V. ; Chaloupecký, Pavel ; Řezáčová, Daniela ; Tsacheva, Ts. ; Kupenova, T. ; Marinov, M.
Mean soluble component concentrations in the air appear higher during the rime events than during the fog events at Milesovka. We recorded larger mean particle size of insoluble compounds in fog water than in rime water samples. Some elements in insoluble particles like Ca, Cl, C, Cu, Ag were present largely in fog, and the others, like Fe, Al, Si, Ti, prevailed in rime.
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Vliv vegetace na tepelnou bilanci a výměnu entropie
Šír, Miloslav ; Weger, J. ; Tesař, Miroslav ; Lichner, Ľ.
The aim of this study is to quantify the synergy between the vegetation cover, solar radiation, air temperature and soil moisture. Heat balance, potential and actual transpiration, and net entropy exchange at three localities under different plant cover was studied in order to determine crucial factors determining phytomass productivity in cold climatic areas of Bohemian Forest. The phytomass productivity can be quantified by the entropy exchange associated with the latent heat flux. Water shortage is a crucial factor determining phytomass productivity in dry and warm seasons in cold climatic conditions of Czech mountains.
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The solid depozited precipitation in the small catchments in the Czech Republic
Fišák, Jaroslav ; Tesař, Miroslav
The samples were collected in two localities differing in the industrial pollutant load. The first locality situated in the Sumava Mts. represents a relatively clean region of the Czech Republic. The second locality is situated in the Northern Bohemia. This locality is represented by the Milesovka Observatory of the IAP ASCR. The region is heavy polluted by the industrial load in this case. The one-shot sample collection in the Sumava Mts. at 28 localities was made on January 4th, 1990. There were shown: i) The ion concentrations in the rime water depend on the industrial load of the region and on the local pollutant sources; ii) The local pollutant sources play the main role in ion concentrations in rime water; iii) The ion concentrations decrease with altitude.
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Pollutant concentrtion in fog-water at Kopisty (1999 – 2004)
Fišák, Jaroslav ; Chaloupecký, Pavel ; Fottová, D.
In this contribution, results of our studies devoted to analyses of fog water samples collected at the meteorological observatory over the period of 1999 - 2004 are summarized. The study deals with the parameters: conductivity, acidity and following selected ions: NH4+, Na+, Ca2+, Mg2+, K+, F-, Cl-, NO3- and SO42-. Overall, the total concentration of selected ions was remarkably decreasing during the period 2000 - 2004. Specifically, we found out an increase in the cation fraction for NH4+ and Ca2+, and a decrease in the anion NO3- fraction in the mean annual sample.
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Occult precipitation and chemistry of a small mountainous catchment
Tesař, Miroslav ; Šír, Miloslav ; Fottová, D.
The present contribution deals with the importance of occult precipitation from the wind-driven low clouds and fogs onto the vegetation cover in the selected mountainous regions of the Czech Republic (Šumava Mts., Jizerské hory Mts. and Krkonoše – Giant Mts.). The experimental monitoring network and sample taking devices for the collecting of samples of water from fogs and low clouds are described in fully details. The attention is paid especially to the evaluation of water and pollutants amount incoming to the monitored regions via occult precipitation.
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Deposited precipitation in the Bohemian Forest
Tesař, Miroslav ; Šír, Miloslav ; Fottová, D.
Contribution deals with an observation and evaluation of occult precipitation in the Bohemian Forest (=Sumava Mts.). Although occult precipitation is less important type of the wet deposition from the quantitative point of view, this so-called horizontal precipitation represents important input of delivered matter into many mountainous and urban areas.
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Atmospheric Deposition 2004
Šír, Miloslav ; Tesař, Miroslav
Proceedings summarises 19 contributions presented in the framework of the Workshop "Atmospheric Deposition 2004" that was focused on the air-born pollution, its monitoring, modeling, trends and development, impacts on the natural environment and the use of the obtained findings in the decision making sphere.
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