Results 71 to 80 of about 15,737 (297)

Groundwater resource modelling for public water supply management in London [PDF]

, 2012
In London, groundwater abstractions for public supply are predominantly from the Chalk aquifer. However, water resource pressures put existing abstractions at risk and often require complex analysis to support new source development.
Hughes, A.G., Jackson, C.R., Jones, M.A., van Wonderen, J.J.   +3 more
core   +1 more source

Deep Learning for Connectivity Identification in Random Subsurface Flows: A Methodological Workflow for Early Solute Arrival Time Quantification

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 2, June 2025.
Abstract Identification of preferential flow paths in heterogeneous subsurface environments is key to assess early solute arrival times at environmentally sensitive targets. We propose a novel methodology that leverages the information contained in preferential flow paths to quantify early arrival times and their associated uncertainty. Our methodology
A. Manzoni, F. P. J. de Barros, G. M. Porta, M. Riva, A. Guadagnini   +4 more
wiley   +1 more source

Prediction of the Annual Variation of Groundwater Depth and Its Probability Based on MCAR Model and Copula Functions: A Case Study in Beijing, China

Water Resources Research, Volume 61, Issue 6, June 2025.
Abstract Groundwater (GW) is the primary water source of socio‐economic development in water‐deficient regions, and long‐term overexploitation may cause GW depletion and deterioration. In this study, after analyzing the relationship between GW level and related factors, the main influencing factors were identified from the perspective of climate change
Yan Han, Xiaoling Zhang, Aifeng Lv, Wenbin Zhu   +3 more
wiley   +1 more source

Scientific and methodological foundations to develop numerical hydrodynamical models of mine fields in Donbas [PDF]

, 2018
The paper considers specific character of hydrogeological problems arising during the whole cycle of a mining enterprise operation; the most reliable their solutions are implemented in the context of numerical hydrodynamical ...
Dereviahina, Nataliia, Podvigina, Olena, Zahrytsenko, Alina   +2 more
core   +1 more source

Enhancing Aquifer Characterization With Position‐Encoded Hyperparameters: A Novel ES‐SIFG Approach

Water Resources Research, Volume 61, Issue 6, June 2025.
Abstract To accurately predict groundwater flow and solute transport, it is essential to precisely characterize the highly heterogeneous aquifer conditions. Ensemble smoother with multiple data assimilation (ESMDA), though widely applied to identify aquifer properties and spatial features, encounters severe problems in practice due its fundamental ...
Meng Sun, Qiankun Luo, Yun Yang, Tongchao Nan, Jiangjiang Zhang, Lei Ma, Yu Li, Haichun Ma, Ming Lei, Yaping Deng, Jiazhong Qian   +10 more
wiley   +1 more source

Measurement network design including traveltime determinations to minimize model prediction uncertainty [PDF]

, 2008
Traveltime determinations have found increasing application in the characterization of groundwater systems. No algorithms are available, however, to optimally design sampling strategies including this information type.
Janssen, G.M.C.M., Valstar, J.R., Zee, S.E.A.T.M., van der   +2 more
core   +1 more source

Responses of Wetted River Network Contraction and Expansion Dynamics to Prolonged Drought

Water Resources Research, Volume 61, Issue 6, June 2025.
Abstract Intermittent rivers spread worldwide, but estimating them and their response to extreme climate conditions at the catchment scale, like prolonged drought, remains challenging. This study related river network dynamics to river‐groundwater interaction and investigated the response of wetted river network contraction and expansion to prolonged ...
Yao Li, Xiaoqiang Yang, Gunnar Lischeid, Wilfred M. Wollheim, Seifeddine Jomaa, Xiangqian Zhou, Michael Rode   +6 more
wiley   +1 more source

Simulation of benzene transport and biodegradation during transient hydraulic conditions [PDF]

, 2000
Thesis (M.S.) University of Alaska Fairbanks, 2000MODFLOW and BIOMOC were used to simulate transport and biodegradation of benzene in the alluvial aquifer adjacent to the Chena River. MODFLOW was used to calculate ground water fluxes at the boundaries of
Burns, Stephen Marion
core  

Simulation of Drying‐Rewetting Processes in Numerical Groundwater Models Using a New Picard Iteration‐Based Method

Water Resources Research
When simulating groundwater flow in unconfined and convertible aquifers using a groundwater model with the block‐centered finite‐difference approach, such as MODFLOW, it frequently encounters drying and rewetting of cells.
Chuiyu Lu, Wen Lu, Qingyan Sun, Xin He, Lingjia Yan, Tao Qin, Chu Wu, Shangqi Han, Zhenjiang Wu, Weichen Wu   +9 more
doaj   +1 more source

Analysis of Groundwater Balance of Samalqan Plain Aquifer Using SWAT and MODFLOW Models

علوم آب و خاک, 2021
Reducing surface water resources and successive droughts and consequently excessive use of groundwater resources, especially for agricultural purposes, have caused irreparable damage to the natural resources of the country.
Sh. Nasiri, H. Ansari, A.N. Ziaei
doaj