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Computer model for vedavati ground water basin. Part 2. Regional model

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Abstract

A computer model for regional ground water resource evaluation, based on the leaky aquifer concept, is presented for the Vedavati basin which is a crystalline hard rock area of 24,200 km2 in Peninsular India. The model can handle nonhomogeneity, anisotropy, varied pumping, rainfall and river stages. The model is calibrated based on regional water level observations for one year. The calibrated model is used to determine the distribution of safe yield, overexploited regions and regions of maximum potential over the basin. Regions which are most affected by drought conditions are also identified.

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Abbreviations

A i :

area ofith block

A T :

total basin area

C L :

leakage coefficient

e i :

difference between computed results and field observations of water levels inith block

E :

error norm

F i :

recharge factor

h, h′:

head in the aquifer and watertable head, respectively

h 0,h′0 :

head in the aquifer and watertable head at previous time level, respectively

N B, NC, Nr NR, NT :

number of blocks, columns in the finite difference grid, river nodes, rows in the finite difference grid and periods over which data is provided, respectively

Q′,Q i, j :

ground water withdrawal rate per unit area and at node (i,j) respectively

Q l :

net recharge per unit area

R f :

rainfall per unit area per day

S :

storage coefficient of deeper aquifer

S′:

specific yield of aquitard

T x, Ty :

transmissivities in thex direction and in they direction, respectively

x, y :

coordinate directions in plan, northeast-southwest and northwest-southeast, respectively

Δx, Δt :

space and time steps

References

  • Manvinder Singh 1978Numerical modelling for confined aquifer M E dissertation, Indian Institute of Science, Bangalore

    Google Scholar 

  • Nallasamy M 1975Numerical studies on laminar internal separated flows Ph.D thesis, Indian Institute of Science, Bangalore

    Google Scholar 

  • Prickett T A, Lonnquist C G 1971 Selected digital computer techniques for ground water resource evaluation, Bulletin 55, Illinois State Water Survey, Urbana, USA

    Google Scholar 

  • Remson I, Hornberger G M, Molz F J 1971Numerical methods in subsurface hydrology (New York: Wiley Interscience)

    Google Scholar 

  • Sarma K V N, Sridharan K, Achutha Rao A, Sarma C S S 1986Sādhanā 9: 31–42

    Google Scholar 

  • Stone H L 1968SIAM J. Numer. Anal. 5: 530–558

    Article  MATH  MathSciNet  Google Scholar 

  • Trescott P C, Larson S P 1977Water Resour. Res. 13: 125–136

    Google Scholar 

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Authors and Affiliations

  1. Department of Civil Engineering, Indian Institute of Science, 560 012, Bangalore, India

    K Sridharan, N S Lakshmana Rao, M S Mohan Kumar & V Ramesam

  2. Central Ground Water Board, 2, 36th Cross, 8th Block, 560 082, Jayanagar, Bangalore, India

    V Ramesam

Authors
  1. K Sridharan
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  2. N S Lakshmana Rao
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  3. M S Mohan Kumar
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  4. V Ramesam
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Sridharan, K., Lakshmana Rao, N.S., Mohan Kumar, M.S. et al. Computer model for vedavati ground water basin. Part 2. Regional model. Sadhana 9, 43–55 (1986). https://doi.org/10.1007/BF02812175

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  • DOI: https://doi.org/10.1007/BF02812175

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