Vietnamese Mekong Delta. This study investigates the trends of groundwater levels (GWLs), memory effect alluvial aquifers, and response times between surface water across Delta (VMD). Trend analysis, auto- cross-correlation, time-series decomposition were applied within a moving window approach to examine non-stationary behavior. Our revealed an effective connection shallowest aquifer unit (Hol...

Many karst aquifers are rapidly filled and depleted and therefore are likely to be susceptible to changes in shortterm climate variability. Here we explore methods that could be applied to model site-specific hydraulic responses, with the intent of simulating these responses to different climate scenarios from high-resolution climate models. We compare hydraulic responses (spring flow, groundwa...

Mathematical modelling of salt-water intrusion processes in three aquifers on the southern coast of Spain (Río Verde, Río Vélez and Castell de Ferro) reveals that, although all three systems are subject to the same climate and seasonal over-exploitation, geological and human factors have very different effects on the dynamics of contamination. In the Río Verde aquifer, the most important influe...

In this study, we use observations from the Gravity Recovery and Climate Experiment (GRACE) satellite mission to evaluate freshwater storage trends in the north-central Middle East, including portions of the Tigris and Euphrates River Basins and western Iran, from January 2003 to December 2009. GRACE data show an alarming rate of decrease in total water storage of approximately -27.2±0.6 mm yr-...

Submit Manuscript | http://medcraveonline.com purposes [1]. A large area of the world experiences a huge contamination in groundwater due to mixing of different toxic and minerals and heavy metals either naturally or unorganized development of human civilization [2,3]. The Arsenic is one of the most important and fatal among these minerals. The high concentrations of arsenic (As) in drinking wa...

Surface water and groundwater in the Heihe river basin of China are interconnected and the pattern of water resources exploitation has a direct effect on the interaction of groundwater and surface water, especially on a downstream oasis. A threedimensional groundwater flow simulation model with eight model layers was established to simulate the regional groundwater flow in the multilayered aqui...

Based on easily available morphological data within the Seine river watershed (76750 km(2)), two approaches were used for wetland delineation and characterisation. Their common assumption is that geomorphology largely governs the spatial distribution of wetlands, because it determines topography and the nature of deposits, thus water pathways and residence times. The first approach relies on th...

The groundwater is an important source of drinking water in the Kathmandu Valley, and is presently fulfilling about forty five percent of the total demand of water supply. However, the deteriorating groundwater quality is an emerging issue of concern. In this study attempt has been done to characterize the groundwater for the fate of arsenic and nitrate contaminations. Physico-chemical paramete...

CO2 storage in deep saline aquifers is considered a possible option for mitigation of greenhouse gas emissions from anthropogenic sources. Understanding of the underlying mechanisms, such as convective mixing, that affect the long-term fate of the injected CO2 in deep saline aquifers, is of prime importance. We present scaling analysis of the convective mixing of CO2 in saline aquifers based on...

Observations of periodic components of measured heads have long been used to estimate aquifer di€usivities. The estimations are often made using well-known solutions of linear di€erential equations for the propagation of sinusoidal boundary ̄uctuations through homogeneous one-dimensional aquifers. Recent ®eld data has indicated several instances where the homogeneous aquifer solutions give incon...