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PERUN/Reanalysis - the new Central Europe regional reanalysis
Pokorná, Lucie; Belda, M.; Beranová, Romana
2022 - Czech
The contribution describes atmospheric reanalyses in general, their concept and role in atmospheric and climate research. The novel PERUN/Reanalysis regional reanalysis based on the ALADIN numerical model opreating at the Czech National Institute of Hydrometeorology is presented. Tento příspěvek se věnuje obecnému popisu atmosférických reanalýz, jejich koncepci a roli při výzkumu atmosféry a klimatu. Představuje regionální reanalýzu PERUN/Reanalysis, která vznikla s využitím numerického modelu ALADIN v ČHMÚ v letech 2021-2022.
Keywords:
assimilation; model
Fulltext is available at external website.
PERUN/Reanalysis - the new Central Europe regional reanalysis
The contribution describes atmospheric reanalyses in general, their concept and role in atmospheric and climate research. The novel PERUN/Reanalysis regional reanalysis based on the ALADIN numerical ...
Measurements of atmospheric aerosol on the top of Milešovka during the presence of fog versus during the absence of fog
Sedlák, Pavel; Ziková, Naděžda
2022 - Czech
The paper describes the measurement of the aerosol particle size distribution during both the occurrence and absence of fog at the top of Milešovka. V příspěvku jsou popsány metody a výsledky měření spektra velikosti částic aerosolu při výskytu i absenci mlhy na vrcholu Milešovky.
Keywords:
atmospheric aerosol
Fulltext is available at external website.
Measurements of atmospheric aerosol on the top of Milešovka during the presence of fog versus during the absence of fog
The paper describes the measurement of the aerosol particle size distribution during both the occurrence and absence of fog at the top of Milešovka.
Extreme precipitation in Milešovka
Bližňák, Vojtěch; Zacharov, Petr, jr.
2022 - Czech
The contribution aims to determine the distribution of extreme precipitation totals at the Milešovka station and to assess the extremity of the precipitation in the context of the Czech Republic. Příspěvek si klade za cíl zjistit distribuci extrémních úhrnů srážek na stanici Milešovka a posoudit extrémnost těchto srážek v kontextu České republiky.
Keywords:
extreme precipitation
Fulltext is available at external website.
Extreme precipitation in Milešovka
The contribution aims to determine the distribution of extreme precipitation totals at the Milešovka station and to assess the extremity of the precipitation in the context of the Czech Republic.
Methods for estimation of extreme precipitation and their applications in the Czech Republic
Picek, J.; Kyselý, Jan; Gaál, Ladislav
2013 - Czech
The paper summarizes concepts and methods applied in estimation of probabilities of extreme precipitation amounts and design precipitation in the Czech Republic in the recent past. This work was motivated by the occurrence of several extraordinary precipitation events that resulted in floods with enormous material damages, but also by advances in the field of statistical modelling of extremes. The methods that we introduce are split in two main parts: methods for estimation of probable maximum precipitation and methods for estimation of design precipitation using different variants of the regional frequency analysis. In the concluding section several open issues and possible directions of follow-up research and improvements are outlined. Příspěvek shrnuje koncepce a metodické postupy, na jejichž základě byla řešena problematika odhadu pravděpodobnosti extrémních srážek a návrhových hodnot v ČR v nedávném období.
Keywords:
precipitation extremes; design values; probable maximum precipitation; regional frequency analysis
Fulltext is available at external website.
Methods for estimation of extreme precipitation and their applications in the Czech Republic
The paper summarizes concepts and methods applied in estimation of probabilities of extreme precipitation amounts and design precipitation in the Czech Republic in the recent past. This work was ...
Pollutant concentrtion in fog-water at Kopisty (1999 – 2004)
Fišák, Jaroslav; Chaloupecký, Pavel; Fottová, D.
2005 - Czech
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. Tento příspěvek je zaměřen na výzkum změn koncentrací znečišťujících látek v mlžné vodě na meteorologické observatoři Kopisty u Mostu v jedné z nejvíce znečištěných oblastí ČR, severní Čechy za období 1999 - 2004. Pozornost byla věnována následujícím komponentám: vodivosti, aciditě a následujícím iontům: NH4+, NA+, CA2+, MG2+, K+, F-, CL-, NO3- a SO42-. Byl zaznamenán výrazný pokles koncentrací zvláště NH4+ a CA2+ a nárůst NO3-.
Keywords:
fog water; deposited precipitation; pollutant concentration; temperature gradient; temperature vertical strati fication
Fulltext is available at external website.
Pollutant concentrtion in fog-water at Kopisty (1999 – 2004)
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 ...
Compariso of computed and measured LWC values
Fišák, Jaroslav; Weignerová, Veronika; Mattanen, J.
2003 - Czech
The field measurement was used to verify a relationship between liquid water content (LWC) and visibility (VIS) in fog. We tested an applicability of this relationship in the simple fog model, and an applicability for the calculation of pollutants deposition from fog. Abychom ověřili vztah mezi vodním obsahem a dohledností v mlze, uskutečnili jsme měření v terénu. Testovali jsme použitelnost této závislosti pro jednoduchý model mlhy a jehovyužitelnost pro výpočet depozice polutantů z mlhy.
Keywords:
liquid water content (LWC); visibility; fog
Fulltext is available at external website.
Compariso of computed and measured LWC values
The field measurement was used to verify a relationship between liquid water content (LWC) and visibility (VIS) in fog. We tested an applicability of this relationship in the simple fog model, and an ...
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