Results 111 to 120 of about 1,638,095 (300)

Joint Groundwater Monitoring and Contamination Report [PDF]

, 1997
Annual report compiling information about required groundwater monitoring activities and cases of contamination by state-regulated activities during the YYYY calendar year.
Texas Groundwater Protection Committee
core  

Exponentially‐constrained Gaussian mixture model for quantifying vertical development of water‐conducting fracture zones in lithologically stratified mining roofs

Deep Underground Science and Engineering, EarlyView.
This study proposes an exponentially‐constrained Gaussian mixture model (EcGMM) to quantify vertical fracture heterogeneity in stratified roof strata. The model integrates a piecewise exponential decay term capturing global stress dissipation with Gaussian components representing localized fracture intensification at lithological interfaces.
Huiqing Yuan, Zhimin Xu, Weixiao Chen, Chenghang Zhang, Shijie Xiong, Yajun Sun   +5 more
wiley   +1 more source

Providing Enhanced Insights into Groundwater Exchange Patterns through Downscaled GRACE Data

Remote Sensing
The measurement of groundwater exchange between neighboring regions is a critical topic in water resource management and can usually be achieved through a combination of field investigations and the use of groundwater flow models.
Jianchong Sun, Litang Hu, Junchao Zhang, Wenjie Yin   +3 more
doaj   +1 more source

Satellite-based estimates of groundwater storage depletion over Egypt. [PDF]

Environ Monit Assess, 2023
Shalby A, Emara SR, Metwally MI, Armanuos AM, El-Agha DE, Negm AM, Gado TA.   +6 more
europepmc   +1 more source

Optimal and Sustainable Groundwater Extraction [PDF]

With the specter of climate change, groundwater scarcity looms as an increasingly critical issue worldwide. Minimizing the adverse effects of scarcity requires optimal as well as sustainable patterns of groundwater management.
James Roumasset, Christopher Wada
core  

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

Deep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong, Mingliang Zhou, Jie Xu, Zeyu Li, Yisheng Zhao, Jin An, Hongwei Huang   +6 more
wiley   +1 more source

Groundwater Storage Recovery Raises the Risk of Nitrate Pollution [PDF]

Environmental Science & Technology, 2021
Leilei Min, Meiying Liu, Lin Wu, Yanjun Shen   +3 more
openaire   +2 more sources

Analysis of lining force transmission coefficient and surrounding rock displacement in lined rock caverns for underground gas storage

Deep Underground Science and Engineering, EarlyView.
This study derives an explicit expression for the lining force transmission coefficient of underground gas storage lined rock caverns (LRCs) via the complex variable function method, considering the displacement release coefficient. Taking the 1‰ tensile strain of surrounding rock as the criterion to determine lining thickness, it systematically ...
Yaohui Li, Jianping Yang, Weizhong Chen
wiley   +1 more source

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

Deep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt, Yu Pan, Heinz Konietzky, Fei Wang   +3 more
wiley   +1 more source

Effects on groundwater storage of restoring, constructing or draining wetlands in temperate and boreal climates: a systematic review. [PDF]

Environ Evid, 2022
Bring A, Thorslund J, Rosén L, Tonderski K, Åberg C, Envall I, Laudon H.   +6 more
europepmc   +1 more source