Results 71 to 80 of about 143,859 (319)
Prof. Chongxi Chen's academic research contributions in the area of hydrogeology
地质科技通报, 2023 Significance Prof. Chongxi Chen has long been engaged in teaching courses, personnel training and scientific research in the field of hydrogeology, working diligently and innovatively, and has achieved fruitful academic research results.
Jiu Jiao Jimmy +3 more
doaj +1 more source
Calculating groundwater response times for flow in heterogeneous porous media [PDF]
, 2017 Predicting the amount of time required for a transient groundwater response to take place is a practical question that is of interest in many situations. This time scale is often called the response time. In the groundwater hydrology literature there are two main methods used to calculate the response time: (i) both the transient and steady state ...
arxiv +1 more source
Method of coupling 1-D unsaturated flow with 3-D saturated flow on large scale
Water Science and Engineering, 2011 A coupled unsaturated-saturated water flow numerical model was developed. The water flow in the unsaturated zone is considered the one-dimensional vertical flow, which changes in the horizontal direction according to the groundwater table and the ...
Yan Zhu +3 more
doaj +1 more source
Gradual Variation Analysis for Groundwater Flow [PDF]
arXiv, 2010 Groundwater flow in Washington DC greatly influences the surface water quality in urban areas. The current methods of flow estimation, based on Darcy's Law and the groundwater flow equation, can be described by the diffusion equation (the transient flow) and the Laplace equation (the steady-state flow).
arxiv
Diamond Chemistry: Advances and Perspectives
Angewandte Chemie International Edition, Accepted Article.Diamond as a material has many unique properties. More recently, diamond has emerged as a material with a wide range of applications in chemistry and biology. The high intrinsic stability of diamond, coupled with the ability to modify diamond surfaces with a wide range of species via highly stable covalent linkages, provides a wealth of opportunity to ...
Nianjun Yang +2 more
wiley +1 more source
Fen ecohydrologic trajectories in response to groundwater drawdown with an edaphic feedback
Ecohydrology, Volume 15, Issue 8, December 2022., 2022 Abstract Fens are high conservation value ecosystems that depend on consistent discharge of groundwater that saturates the near surface for most of the growing season. Reduced groundwater inputs can result in losses of native diversity, decreases in rare‐species abundance and increased invasion by non‐native species.
Eric G. Booth +2 more
wiley +1 more source
Groundwater–glacier meltwater interaction in proglacial aquifers [PDF]
Hydrology and Earth System Sciences, 2019 Groundwater plays a significant role in glacial hydrology and can buffer changes to the timing and magnitude of flows in meltwater rivers. However, proglacial aquifer characteristics or groundwater dynamics in glacial catchments are rarely studied ...
B. É. Ó Dochartaigh +7 more
doaj +1 more source
Deep learning based surrogate modeling for thermal plume prediction of groundwater heat pumps [PDF]
arXiv, 2023 The ability for groundwater heat pumps to meet space heating and cooling demands without relying on fossil fuels, has prompted their mass roll out in dense urban environments. In regions with high subsurface groundwater flow rates, the thermal plume generated from a heat pump's injection well can propagate downstream, affecting surrounding users and ...
arxiv
Sapwood and heartwood are not isolated compartments: Consequences for isotope ecohydrology
Ecohydrology, Volume 15, Issue 8, December 2022., 2022 Abstract In most tree species, xylem consists of two different functional parts: sapwood and heartwood. While sapwood, as the flowpath for sap, has received more attention in isotope studies assessing water sources accessed by trees (e.g. soil water from different depths, groundwater, stream water or a mixture of these), much remains unknown about ...
Ginevra Fabiani +3 more
wiley +1 more source
An integrated assessment of the impact of precipitation and groundwater on vegetation growth in arid and semiarid areas [PDF]
arXiv, 2014 Increased demand for water resources together with the influence of climate change has degraded water conditions which support vegetation in many parts of the world, especially in arid and semiarid areas. This study develops an integrated framework to assess the impact of precipitation and groundwater on vegetation growth in the Xiliao River Plain of ...
arxiv