The peaks over threshold method (POT method) is an alternative to the block-maxima method for estimating return levels (these are the levels that are exceeded by a daily precipitation, resp. by a daily average discharge, only with a given small probability; in statistical language they are called high quantiles) when the studied series are not long enough. The paper compares both methods for precipitation and discharges series of Northern Moravia. It is shown how to overcome problems in the POT method caused by autocorrelation and seasonality. and Metoda špiček nad prahem může sloužit při odhadování vysokých kvantilů (to znamená takových hodnot, že je denní úhrnná srážka, respektive denní průměrný průtok, překročí jen s malou předem danou pravděpodobností). Jedná se o alternativu k metodě blokových maxim, a to zvláště tam, kde studované řady nejsou příliš dlouhé. Článek porovnává výsledky obou metod na příkladech srážkových a průtokových dat ze severní Moravy. Ukazuje dále, jak lze v metodě POT překonat problémy spojené s autokorelací a sezónností řad.
The paper focuses on the Modern Period seals and sealing in credible places (locus credibilis) in the Kingdom of Hungary. It presents the basic historical context, in which the credible places were created and operated within religious institutions in the Middle Ages. Specifically, it addresses the problems which the political and social changes in modern times brought to the function of these institutions. Particular attention is paid to the seals and their use in modern Nitra Residential Chapter and Spiš Collegial Chapter. The paper is mainly based on the research of archives of the correspondent religious institutions. Its main objective is to present unpublished facts about the design of the seals of these institutions, as well as issues related to the method of sealing, storage and use of the typarium.