Hydrogeological condition and assessment of groundwater resource using visual modflow modeling,Rajshahi city aquifer,Bangladesh |
| |
Authors: | M. Al Mamunul Haque C. S. Jahan Q. H. Mazumder S. M. S. Nawaz G. C. Mirdha P. Mamud M. I. Adham |
| |
Affiliation: | 1.Department of Geology and Mining,University of Rajshahi,Rajshahi,Bangladesh;2.Irrigation Management Division,Institute of Water Modeling,Rajshahi,Bangladesh;3.Assistant Engineer, Water Supply Division,Rajshahi City Corporation,Rajshahi,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: | |
本文献已被 SpringerLink 等数据库收录! |
|