Results 11 to 20 of about 4,919,113 (388)

Groundwater flow across spatial scales: importance for climate modeling

open access: yesEnvironmental Research Letters, 2014
Current regional and global climate models generally do not represent groundwater flow between grid cells as a component of the water budget. We estimate the magnitude of between-cell groundwater flow as a function of grid cell size by aggregating ...
Nir Y Krakauer, Haibin Li, Ying Fan
doaj   +2 more sources

Integration of aquifer geology, groundwater flow and arsenic distribution in deltaic aquifers - A unifying concept [PDF]

open access: yes, 2017
Groundwater arsenic (As) presents a public health risk of great magnitude in densely populated Asian delta regions, most acutely in the Bengal Basin (West Bengal, India and Bangladesh). Research has focused on the sources, mobilisation, and heterogeneity
Ahmed, KM, Burgess, WG, Hoque, MA
core   +3 more sources

Solving Groundwater Flow Problems with Time Series Analysis: You May Not Even Need Another Model. [PDF]

open access: yesGround Water, 2019
Time series analysis is a data‐driven approach to analyze time series of heads measured in an observation well. Time series models are commonly much simpler and give much better fits than regular groundwater models.
Bakker M, Schaars F.
europepmc   +2 more sources

Application of physics-informed neural networks to inverse problems in unsaturated groundwater flow

open access: yesGeorisk: Assessment and Management of Risk for Engineered Systems and Geohazards, 2021
This paper investigates the application of Physics-Informed Neural Networks (PINNs) to inverse problems in unsaturated groundwater flow. PINNs are applied to the types of unsaturated groundwater flow problems modelled with the Richards partial ...
I. Depina   +3 more
semanticscholar   +1 more source

Groundwater Flow and Transport [PDF]

open access: yes, 2021
AbstractWe summarize the basic principles of, and governing equations for, groundwater flow and transport. Topics covered include the concepts of pressure and hydraulic head, Darcy’s law, permeability, and storage. We compare saturated and unsaturated flow. We provide an introduction to heat and solute transport.
Michael Manga, Chi-Yuen Wang
openaire   +2 more sources

Thermal Impact by Open-Loop Geothermal Heat Pump Systems in Two Different Local Underground Conditions on the Alluvial Fan of the Nagara River, Gifu City, Central Japan

open access: yesEnergies, 2022
An alluvial fan is a good area to install open-loop geothermal heat pump (GHP) systems due to shallower aquifers, faster groundwater flow, and fewer land subsidence risks.
Randa Permanda, Tomoyuki Ohtani
doaj   +1 more source

Mapping of Groundwater Flow Pattern and its Quality Index based on Microbiological Parameters in Klojen District, Malang City, East Java, Indonesia

open access: yesCivil and Environmental Science Journal, 2021
Groundwater is one source of fulfilling water needs for the Klojen district, the most populous district in Malang City. Population density affects the condition of groundwater quality because it causes pollution.
Veronika Yulia Permata   +2 more
doaj   +1 more source

Temperature field and dynamic types of shallow groundwater in the northwest inland basin: A case study of the Jiuquan East Basin

open access: yes地质科技通报, 2022
Temperature is an inherent property of groundwater.Groundwater temperature field and dynamic characteristics are objective manifestations of groundwater flow system.Based on multi-point, long series and high precision groundwater temperature monitoring ...
Dechao Yin   +6 more
doaj   +1 more source

Visualization Method for Porous Groundwater Seepage Flow Field Based on Particle Flow: Case of Yancheng City in the East Coast of China

open access: yesGeofluids, 2022
Porous groundwater seepage flow field reflects the spatiotemporal dynamic characteristics of porous groundwater movement. The geometric point and vector line methods are the traditionally used visualization methods for groundwater seepage flow field ...
Liang He, Ling Chen, Suozhong Chen
doaj   +1 more source

A New Physically-Based Spatially-Distributed Groundwater Flow Module for SWAT+

open access: yesHydrology, 2020
Watershed models are used worldwide to assist with water and nutrient management under conditions of changing climate, land use, and population. Of these models, the Soil and Water Assessment Tool (SWAT) and SWAT+ are the most widely used, although their
R. Bailey   +3 more
semanticscholar   +1 more source

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