Digital modeling studies for evaluation of hydrogeological characteristics in Shadnagar granite basin,Andhra Pradesh,India |
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| Authors: | B H Briz-Kishore |
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| Institution: | (1) Centre of Exploration Geophysics, Osmania University, 500007 Hyderabad, India |
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| Abstract: | The use of digital models has increased significantly in recent years with the accessibility of fast computing machines. A
variable dimensioned digital model was constructed for the Shadnagar granite basin using SPECTRUM-7 micro computer to integrate
various hydrogeological characteristics and for their quantitative evaluation. The basin has an areal extent of 437 sq km
and is demarcated with clear water divides in all directions. Transmissivity, recharge and discharge at each cell of the basin
area were estimated by trial and error simulation of the hydrogeological phenomenon under steady state condition. Dynamic
simulation at representative nodes facilitated the estimation of storage coefficient. The capability of the constructed model
was established by the conformance of the simulated hydrographs with the actual behaviour of the ground water system. The
entire studies ammended the earlier arrived estimates of various input/output hydrogeological parameters and evolved a methodology
for efficient processing of aquifer simulation data |
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| Keywords: | Finite difference approach nodal area boundary conditions interpolated data error check experimental runs iterations convergence |
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