MF6-ADJ: A Non-Intrusive Adjoint Sensitivity Capability for MODFLOW 6 [0.03%]
MF6-ADJ：用于MODFLOW 6的非侵入式伴随敏感性功能
Mohamed Hayek,Jeremy T White,Katherine H Markovich et al.
Mohamed Hayek et al.
Adjoint sensitivity analysis provides an efficient alternative to direct methods when evaluating the influence of many uncertain parameters on a limited number of performance measures in hydrologic and hydrogeologic models. However, most ad...
A Regional Model Comparison between MODPATH and MT3D of Groundwater Travel Time Distributions [0.03%]
MODPATH和MT3D模型在地下水运移时间分布方面的区域对比研究
Emily A Baker,Paul Juckem,Daniel Feinstein et al.
Emily A Baker et al.
Groundwater quality changes in wells and streams lag behind changes to land use due to groundwater travel times. Two contaminant transport methods were compared to assess differences in their simulated travel time distributions (TTDs) to st...
Christopher J Neville
Christopher J Neville
A Categorical Machine Learning Approach to Predicting Areas of Shallow Coastal Groundwater [0.03%]
基于类别的机器学习预测浅层沿海地下水分布区的方法
Patrick Durney,Matt Dumont,Christo Rautenbach
Patrick Durney
Coastal lowlands are increasingly vulnerable to threats from sea-level and associated groundwater rise. This study introduces a categorical modeling framework that redefines groundwater depth estimation as a classification problem rather th...
Aquitardifer: A New Hydrogeologic Term for Geologic Materials with both Aquitard and Aquifer Properties [0.03%]
兼具弱透水性和透水性地层的新水文地质术语— aquitardifer（浅谈）
Anthony C Runkel,Jessica R Meyer
Anthony C Runkel
We propose that a new term, aquitardifer, be added to the hydrogeologic nomenclature. Aquitardifer, a blend of the terms aquitard and aquifer, accounts for geologic materials that have properties of both as traditionally defined. Several ex...
Comparison of NMR-Derived Hydraulic Conductivity with Various Hydraulic Testing Methods [0.03%]
基于NMR的导水率与各种液压测试方法的比较
Chenxi Wang,Colby M Steelman,Zeren Ning et al.
Chenxi Wang et al.
Borehole nuclear magnetic resonance (NMR) can be used to estimate the hydraulic conductivity (K) of unconsolidated materials. Various petrophysical models have been developed to predict K based on NMR response, with considerable efforts on ...
PEST++IES How Many Iterations and Realizations, Finding the Point of Diminishing Returns [0.03%]
PEST++迭代与抽样次数探析及边际效用分析法
Trent J Farnum,Andrew T Leaf,Michael N Fienen
Trent J Farnum
PEST++IES (White 2018; White et al. 2020) is widely used in the groundwater modeling community for its ability to perform computationally efficient history matching and uncertainty analysis in a highly parameterized context. One primary adv...
Cross-Sectional Models of Groundwater Flow: Review and Correction for Transverse Flow [0.03%]
地下水径流横交向流动的跨段模式：评述与更正
Amin Gholami,Amir Jazayeri,Adrian D Werner
Amin Gholami
Cross-sectional (2D) groundwater models are commonly applied to simulate complex processes that are challenging to capture using the coarse grids of 3D regional-scale models. 2D models are often extracted from 3D models for this purpose. Ho...
Mapping the Spatial Sensitivity of Aquitard Hydraulic Parameters on Pumping Test Drawdowns [0.03%]
含水层参数对抽水试验水位降深响应的敏感性空间分布研究
Martijn D van Leer,Willem J Zaadnoordijk,Alraune Zech et al.
Martijn D van Leer et al.
This study investigates the spatial and temporal sensitivity of aquitard hydraulic conductivity and specific storage on drawdowns in pumping tests. The objective is to understand which area of the aquitard is represented by drawdowns in dif...
Kenneth R Bradbury
Kenneth R Bradbury
Editorial
Ground water. 2025 Aug 20. DOI:10.1111/gwat.70013 2025