Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: czwartorzędowa warstwa wodonośna

Sortuj według:

Ogranicz wyniki do:

Estimation of the hydraulic parameters by using an alternative vertical electrical sounding technique: case study from semiarid Khanasser valley region, Northern Syria

Asfahani Jamal

Acta Geophysica

2023

Vol. 71, no. 2

997--1013

Vertical electrical sounding technique (VES) is proposed as an alternative geoelectrical approach to estimate the hydraulic conductivity and transmissivity parameters related to the Quaternary aquifer of semiarid Khanasser valley, Northern Syria. Schlumberger array is used for carrying out the VES measurements, where three of them were made just near three existing boreholes for comparison. The conjoint analysis of the pumping tests results from the available three drilled boreholes, and the geoelectrical Dar-Zarrouk of transverse resistance (R) and longitudinal conductance (S) parameters resulted from VES interpretations allows to obtain the both parameters of the hydraulic conductivity and transmissivity Quaternary aquifer. Empirically calibrated relationship between hydraulic conductivity evaluated by using the available pumping test results and the transverse resistance (R) of the Quaternary aquifer is derived for those three boreholes. A very good agreement is noticed between the measured hydraulic conductivity from pumping tests and the one computed geophysically. The constructed calibrated relationship is thereafter applied to extrapolate and estimate both the hydraulic conductivity and the transmissivity parameters in thirty-four measured VES points in the Khanasser valley study area. Such an extrapolation allows deriving and characterizing the spatial variation maps of hydraulic conductivity and transmissivity in the study area. The acquired geophysical results give useful information, particularly on the groundwater potentiality of the study region. The developed alternative approach is successfully applied in the study area and can therefore be practiced for characterizing similar semiarid environments worldwide.

Możliwości interpretacji naturalnych wahań zwierciadła wód gruntowych na podstawie pomiarów ze stanowiska badawczego na terenie AGH w Krakowie

Żurek A.

Biuletyn Państwowego Instytutu Geologicznego

2011

nr 445 Hydrogeologia z. 12/2

753--762

W pracy są prezentowane wyniki pomiarów wahań zwierciadła wód gruntowych, realizowanych od końca listopada 2005 r. na stanowisku badawczym zlokalizowanym na terenie AGH w Krakowie. Czujniki położenia zwierciadła wody są zamontowane w trzech piezometrach, a stany wód są rejestrowane co godzinę. Przeanalizowany został wpływ wielkości opadów i ich rozkładu w czasie na naturalne wahania zwierciadła wody podziemnej. Dla okresów ograniczonej infiltracji został określony wpływ zmian ciśnienia atmosferycznego. Zasugerowano wpływ wysokich stanów wody w Wiśle na gwałtowne wzniosy zwierciadła wód gruntowych w okresie powodzi w maju i czerwcu 2010 roku.

In the paper are presented the results of groundwater level measurements which have been realized since the end of November 2005 in the research station at AGH in Kraków. Water level gauges were installed in 3 piezometers. Water level data are recorded every hour. The influence of precipitation duration and intensity on natural groundwater fluctuations was analyzed. For the periods of low infiltration the effects of atmospheric pressure changes on water level were illustrated. The influence of flood waves on extreme water table increases in May and June 2010 is suggested.