@phdthesis{8754816,
  abstract     = {{Unplanned and fast urbanization has remarkably aggravated groundwater depletion in Dhaka city, the capital of Bangladesh. This PhD research addressed an integrated approach, combining hydrogeological structure analysis, environmental geophysics, groundwater dynamics, hydrochemistry and groundwater flow modeling, to characterize Dupi Tila aquifer in Dhaka city. Three consecutive semi-confined subdivisions of Dupi Tila aquifer have been identified: the Upper Dupi Tila aquifer (UDA), Middle Dupi Tila aquifer (MDA) and Lower Dupi Tila aquifer (LDA). In 2018, the piezometric level has dropped to depths lower than −85 and −65 m Public Works Department reference datum in UDA and MDA, respectively. Hydrogeochemical data suggested that the waters are mainly of Ca/Mg-HCO3 type and groundwater quality is good as potable water. The weathering of aluminosilicates controls the concentration of the major ions in groundwater. This integrated study suggested that there is no evidence of groundwater recharge through direct bank infiltration from the river. A groundwater flow model suggested that currently, pumping rates are largely exceeding the natural recharge, and the surrounding rivers are mainly irrigating and cross-border inflow from the surroundings increased, and water released from storage is also elevated. Thus, a longer time period of stabilization is needed to obtain an equilibrium.}},
  author       = {{Islam, Mazeda}},
  language     = {{eng}},
  pages        = {{XII, 265}},
  publisher    = {{Ghent University. Faculty of Sciences}},
  school       = {{Ghent University}},
  title        = {{Hydrogeological, hydrogeophysical and hydrochemical characterization of the Dupi Tila Aquifer in Dhaka City, Bangladesh}},
  year         = {{2022}},
}