Universität zu Köln

Islam, Md Bayzidul, Firoz, A. B. M., Foglia, Laura ORCID: 0000-0002-2084-8792, Marandi, Andres, Khan, Abidur Rahman, Schueth, Christoph and Ribbe, Lars ORCID: 0000-0003-3052-1782 (2017). A regional groundwater-flow model for sustainable groundwater-resource management in the south Asian megacity of Dhaka, Bangladesh. Hydrogeol. J., 25 (3). S. 617 - 638. NEW YORK: SPRINGER. ISSN 1435-0157

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Abstract

The water resources that supply most of the megacities in the world are under increased pressure because of land transformation, population growth, rapid urbanization, and climate-change impacts. Dhaka, in Bangladesh, is one of the largest of 22 growing megacities in the world, and it depends on mainly groundwater for all kinds of water needs. The regional groundwater-flow model MODFLOW-2005 was used to simulate the interaction between aquifers and rivers in steady-state and transient conditions during the period 1981-2013, to assess the impact of development and climate change on the regional groundwater resources. Detailed hydro-stratigraphic units are described according to 150 lithology logs, and a three-dimensional model of the upper 400 m of the Greater Dhaka area was constructed. The results explain how the total abstraction (2.9 million m(3)/d) in the Dhaka megacity, which has caused regional cones of depression, is balanced by recharge and induced river leakage. The simulated outcome shows the general trend of groundwater flow in the sedimentary Holocene aquifers under a variety of hydrogeological conditions, which will assist in the future development of a rational and sustainable management approach.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Islam, Md Bayzidul UNSPECIFIED UNSPECIFIED UNSPECIFIED Firoz, A. B. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Foglia, Laura UNSPECIFIED orcid.org/0000-0002-2084-8792 UNSPECIFIED Marandi, Andres UNSPECIFIED UNSPECIFIED UNSPECIFIED Khan, Abidur Rahman UNSPECIFIED UNSPECIFIED UNSPECIFIED Schueth, Christoph UNSPECIFIED UNSPECIFIED UNSPECIFIED Ribbe, Lars UNSPECIFIED orcid.org/0000-0003-3052-1782 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-233222
DOI:	10.1007/s10040-016-1526-4
Journal or Publication Title:	Hydrogeol. J.
Volume:	25
Number:	3
Page Range:	S. 617 - 638
Date:	2017
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1435-0157
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language AQUIFER; FLUCTUATIONS; RAINFALL Multiple languages Geosciences, Multidisciplinary; Water Resources Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/23322