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Inverse modelling of aquifer parameters in basaltic rock with the help of pumping test method using MODFLOW software

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Geoscience Frontiers 2017年第6期8卷 1385-1395页

作者： kanak moharir Chaitanya Pande Sanjay Patil Sant Gadge Baba Amravati University AmravatiIndia Maharashtra Remote Sensing Application Center PuneIndia

The origin and movement of groundwater are the fundamental questions that address both the temporal and spatial aspects of ground water run and water supply related issues in hydrological *** groundwater flows through an aquifer,its composition and temperature may variation dependent on the aquifer condition through which it ***,hydrologic investigations can also provide useful information about the subsurface geology of a *** because such studies investigate processes that follow under the Earth's shallow,obtaining the information necessary to answer these questions is not continuously ***,which discharge groundwater table directly,afford to study subsurface hydrogeological *** present study of estimation of aquifer factors such as transmissivity(T)and storativity(S)are vital for the evaluation of groundwater *** are several methods to estimate the accurate aquifer parameters(*** analysis,pumping test,etc.).In initial days,these parameters are projected either by means of in-situ test or execution test on aquifer well samples carried in the *** simultaneous information on the hydraulic behavior of the well(borehole)that provides on this method,the reservoir and the reservoir boundaries,are important for efficient aquifer and well data management and *** most common in-situ test is pumping test performed on wells,which involves the measurement of the fall and increase of groundwater level with respect to *** alteration in groundwater level(drawdown/recovery)is caused due to pumping of water from the ***(1935)was first to propose method to evaluate aquifer parameters from the pumping test on a bore well in a confined *** is essential to know the transmissivity(T=Kb,where b is the aquifer thickness;pumping flow rate,Q=TW(dh/dl)flow through an aquifer)and storativity(confined aquifer:S=bS_s,unconfined:S=S_y),for the characterization of the aquifer parameters in an unkn

关键词： Pumping test Hantush method GPS MODFLOW Inverse modelling Hydraulic parameters

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