منابع مشابه
Data processing for oscillatory pumping tests
Characterizing the subsurface is important for many hydrogeologic projects such as site remediation and groundwater resource exploration. Methods based on the analysis of conventional pumping tests have the notable disadvantage that at a certain distance, the signal is small relative to the noise due to the effects of recharge, pumping in neighboring wells, change in the level or adjacent strea...
متن کاملNoise-assisted classical adiabatic pumping in a symmetric periodic potential.
We consider a classical overdamped Brownian particle moving in a symmetric periodic potential. We show that a net particle flow can be produced by adiabatically changing two external periodic potentials with a phase difference phi in time and chi in space. The classical pumped current is found to be independent of the friction and to vanish both in the limit of low and high temperature. Below a...
متن کاملInterpretation of pumping tests in a mixed flow karst system
A long-duration pumping test performed in the conduit of a mixed flow karst system (MFKS) is analyzed and interpreted. It constitutes a unique experiment of catchment wide response of a karst system, with drawdowns measured both in the pumped conduit and in the matrix. A modeling approach is proposed for this interpretation. The developed double continuum model consists of two reservoirs karst ...
متن کاملOn simulation and analysis of variable-rate pumping tests.
Analytical solutions for constant-rate pumping tests are widely used to infer aquifer properties. In this note, we implement a methodology that approximates the time-varying pumping record as a series of segments with linearly varying pumping rates. We validate our approach using an analytical solution for a sinusoidally varying pumping test. We also apply our methodology to analyze synthetic t...
متن کاملSensitivity analysis of pumping tests in non-uniform aquifers
An approach for better understanding of the physical implication of estimated aquifer parameters is demonstrated by analysing the pumping test data at Cottam in the Nottingham aquifer, UK. A sensitivity analysis showed that the area represented by the estimated parameters was much smaller than the area covered by the depression cone. After parameters are estimated, further research should be ca...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2006
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.2006.02984.x