Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Hydrogeological Condition and Assessment of Groundwater Resource Using Visual Modflow Modeling, Rajshahi City Aquifer, Bangladesh


Affiliations
1 Department of Geology and Mining, University of Rajshahi, Rajshahi 6205, Bangladesh
2 Irrigation Management Division, Institute of Water Modeling, Bangladesh
3 Water Supply Division, Rajshahi City Corporation, Bangladesh
     

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The Rajshahi city is the fourth largest metropolitan city in Bangladesh on the bank of the River Padma (Ganges). Here an upper semi-impervious layer overlies aquifer - the source for large-scale groundwater development. The groundwater resource study using Visual MODFLOW modeling shows that recharge occurs mainly due to infiltration of rainfall and urban return flow at low rate, and water level fluctuates seasonally in response to recharge and discharge. Hydraulic connection between river and aquifer which indicates inflow from high river water levels beyond its boundaries. The total groundwater abstraction in 2004 (15000 million liters) is lower than total input to aquifer reveals an ample potentiality for groundwater development with increasing demand. But groundwater shortage (1000 million liter/year) especially in the vicinity of the River Padma in dry season happens due to its increasing use and fall of river water level resulting in reduced inflows and hence decline in groundwater level. The conjunctive use of surface water-groundwater and its economic use will help for sustainable groundwater supply to avoid adverse impact.

Keywords

Hydrogeology, Groundwater Resource Assessment, Aquifer, Rajshahi, Bangladesh.
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  • Hydrogeological Condition and Assessment of Groundwater Resource Using Visual Modflow Modeling, Rajshahi City Aquifer, Bangladesh

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Authors

M. Al Mamunal Haque
Department of Geology and Mining, University of Rajshahi, Rajshahi 6205, Bangladesh
C. S. Jahan
Department of Geology and Mining, University of Rajshahi, Rajshahi 6205, Bangladesh
Q. H. Mazumder
Department of Geology and Mining, University of Rajshahi, Rajshahi 6205, Bangladesh
S. M. S. Nawaz
Irrigation Management Division, Institute of Water Modeling, Bangladesh
G. C. Mirdha
Irrigation Management Division, Institute of Water Modeling, Bangladesh
P. Mamud
Water Supply Division, Rajshahi City Corporation, Bangladesh
M. I. Adham
Department of Geology and Mining, University of Rajshahi, Rajshahi 6205, Bangladesh

Abstract


The Rajshahi city is the fourth largest metropolitan city in Bangladesh on the bank of the River Padma (Ganges). Here an upper semi-impervious layer overlies aquifer - the source for large-scale groundwater development. The groundwater resource study using Visual MODFLOW modeling shows that recharge occurs mainly due to infiltration of rainfall and urban return flow at low rate, and water level fluctuates seasonally in response to recharge and discharge. Hydraulic connection between river and aquifer which indicates inflow from high river water levels beyond its boundaries. The total groundwater abstraction in 2004 (15000 million liters) is lower than total input to aquifer reveals an ample potentiality for groundwater development with increasing demand. But groundwater shortage (1000 million liter/year) especially in the vicinity of the River Padma in dry season happens due to its increasing use and fall of river water level resulting in reduced inflows and hence decline in groundwater level. The conjunctive use of surface water-groundwater and its economic use will help for sustainable groundwater supply to avoid adverse impact.

Keywords


Hydrogeology, Groundwater Resource Assessment, Aquifer, Rajshahi, Bangladesh.

References