Podrobnosti záznamu

Název
    Scale Effect in Transmissivity Data Distribution
Údaj o odpovědnosti
    Jiří Krásný
Další názvy
    First Workshop on Hardrock Hydrogeology of the Bohemian Massif, October 3-5, 1994 Rohanov, Czech Republic (Variant.)
Autor
    Krásný, Jiří
Jazyk
    anglicky
Zdrojový dokument - seriál
    Acta Universitatis Carolinae, Geologica
Svazek/č.
    Vol. 40, no. 2
Strany
    p. 123-133
Rok
    1996
Poznámky
    6 obr., 10 bibl.
    Zkr. název ser.: Acta Univ. Carol., Geol.
Předmětová skupina
    Český masiv
    diagramy
    interakce voda-hornina
    konference
    průtočnost
    voda podzemní
    vodivost hydraulická
    zpracování dat
Geografické jméno
    Česká republika
Klíčové slovo
    Data
    Distribution
    Effect
    Scale
    Transmissivity
Abstrakt (anglicky)
   Different results of hydraulic conductivity or transmissivity are usually provided by distinct tests covering study areas (domains) of different extension (so called scale effect). Differences are caused by inhomogeneity elements of a different size as a rule. The greater the size of the tested area (considered domain) the smaller the variability of results caused by inhomogeneity elements of a certain size. Therefore the results of studies should always be considered with respect to the size of the study area. Individual transmissivity (and also permeability) values of hard rocks determined by pumping tests in drilled wells often vary within three or even four orders of magnitude but regionally averaged transmissivity values (and prevailing values, i.e. hydrogeological background) usually do not differ very much in distinct types of hard rocks and in distinct areas.
   Statistical treatment of aquifer test data performed in hard rocks of the Czech part of the Bohemian Massif has usually led to similar average and prevailing values there: transmissivity background for many hardrock areas may be characterized by units of m2.d-1 up to slightly more than 10 m2.d-1. At least three levels of prevailing transmissivity values can be distinguished in areas of different extension due to the scale effect
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    25. 3. 2008
Datum importu
    8. 8. 2012