Ho Chi Minh City (HCMC) region in the south of Vietnam faces significant challenges from climate change and subsidence, with more frequent flooding, and threat of saltwater intrusion. As a proactive measure for future mitigation and development, particular attention is being paid towards sustainable groundwater resources. The northwest, characteriz...
The purpose of this article is the mathematical analysis of a new class of models to describe the flow in shallow aquifers, as alternatives to the 3d-Richards model. This type of models was introduced in a previous work and consists of the coupling of an almost 1d vertical flow in the upper part of the aquifer with a 2d horizontal flow in the lower...
The purpose of this complementary article is to formally justify that the model presented in the main article is an approximation of the 3d-Richards model in shallow aquifers. The idea consists in characterizing the effective problems when the ratio characteristic depth/characteristic length of the shallow aquifer tends to zero.
In this paper, we present a new model as an alternative to the classical 3d-Richards model for the description of water flow in shallow aquifers. The new model is designed to meet three objectives. First, it provides a good approximation to the Richards model over a wide range of time scales. More specifically we show that both models characterize ...
Published in The Science of the total environment
Despite numerous studies, there are many knowledge gaps in our understanding of uranium (U) contamination in the alluvial aquifers of Punjab, India. In this study, a large hydrogeochemical dataset was compiled to better understand the major factors controlling the mobility and enrichment of uranium (U) in this groundwater system. The results showed...
Published in Environmental management
An improved understanding of the relationships among vegetation, groundwater level, and microtopography is crucial for making well-informed management decisions in areas with shallow groundwater resources. We measured plant species abundance/composition and richness in relation to depth to groundwater (DTW) and microtopography in Owens Valley, Cali...
Published in Arabian Journal of Geosciences
During the last few decades, climate and land use change has induced an over-pumping of groundwater resources to meet the growing demand for water to provide irrigation and potable supplies. The impact of such practices on the aquifer hydrodynamics and groundwater quality should be evaluated by using a set of tracers. Furthermore, in the Ghardimaou...
Published in Arabian Journal of Geosciences
Natural groundwater reserve is an essential key parameter in the budgeting of water resources and its management because rainfall is the primary source of groundwater reserve. Thus, this article deals with estimating natural groundwater recharge with the help of an entropy-based model adopted at the proximity of Deccan Trap Basalt and Gondwana Sand...
Published in Environmental Earth Sciences
Groundwater quality management is based on understanding the spatial distribution of parameters in when assessing the suitability of groundwater for use. In this study, different interpolation methods were evaluated in two shallow aquifers according to their hydrogeological characteristics. After initial data processing, 24 deterministic and geosta...
Published in The Science of the total environment
Groundwater recharge estimation, aquifer response to meteorological variables, and evapotranspiration calculations have been performed on a semi-humid catchment, in northwestern Ethiopian plateau. The Soil Moisture Balance (SMB), WetSpass water balance model, Water Table Fluctuation (WTF), and Chloride Mass Balance (CMB) methods are applied to esti...
