OOIR: Observatory of International Research

Papers

(The TQCC of Groundwater is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
	50
A Reduced Order Model for Sea Water Intrusion Simulation Using Proper Orthogonal Decomposition	44
Groundwater Modeling in a Changing World: MODFLOW‐and‐More 2022 Special Issue	35
Book Review: Transboundary Aquifers: Challenges and the Way Forward	33
The Artesian Wells of Batavia, Dutch East‐Indies 1872 to 1878	32
Study on Permeability Calculation Method Based on J Function and Fractal Theory	31
Surface Water‐Groundwater Connections as Pathways for Inland Salinization of Coastal Aquifers	27
Susceptibility Assessment of Groundwater Nitrate Contamination Using an Ensemble Machine Learning Approach	27
Quantifying Annual Nitrogen Loss to Groundwater Via Edge‐of‐Field Monitoring: Method and Application	26
A New Explicit Solver for MODFLOW Enabling Small Time Step Simulations	25
Spatial Prediction Modeling of Geogenic Chromium in Groundwater Using Soft Computing Techniques	23
Hydraulic Response to Sea Level Rise in a Coastal Aquifer Extending under the Sea with a Cut‐off Wall	21
Society News	20
The Possible Source of Abnormally High Sodium Content in Low‐Salinity Geothermal Water	19
Factoring Impacts to Water Supply Well Operations into Groundwater Management Planning	18
	17
Nitrogen and Phosphorus Treatment Can Be Sustainable During on‐Site Wastewater Disposal	17
	17
	16
Variability and Scale Dependence of Hydraulic Conductivity for Hanford Site Sand and Gravel Aquifers	16
Improved Lumped‐Parameter and Numerical Modeling of Unsaturated Water Flow and Stable Water Isotopes	14
Transience of Coastal Water Table Rise in Response to Sea‐Level Rise	14
The Geology of Aquitards in Alluvial Aquifers: A Predictive Approach Based on Facies Models	13
New Insights into the Formation and Properties of Wellbore Skin: Why We Have to Rethink the Concept	13
Predicting Groundwater Hydrochemical Facies in Three Dimensions with Random Forest Classification, USA	12

Evidence Based Estimation of Macrodispersivity for Groundwater Transport Applications	11
NGWA News	11
Bronze Age Sacred Wells of Sardinia, Italy: Groundwater Access Without Water Utility	11
Society News	11
Quantification and Analysis of Hydrograph Behavior Using Groundwater Signatures	11
An Introduction to Hydraulic Testing in Hydrogeology	11
Issue Information	10
Improvements on Scalable and Reproducible Cloud Implementation of Numerical Groundwater Modeling	9
A Unit‐Concentration Method to Quantify Source Contribution	8
Comparing Physics‐Based, Conceptual and Machine‐Learning Models to Predict Groundwater Levels by BMA	8
	8
Groundwater Science Could Use a New Term: Transportivity	8
	8
Challenges and Experiences of Managed Aquifer Recharge in the Mexico City Metropolitan Area	8
muFlowReacT : A Library to Solve Multiphase Multicomponent Reactive Transport on Unstructured Meshes	7
Evaluation of Models for Estimating Hydraulic Conductivity in Glacial Aquifers with NMR Logging	7
Global Groundwater Carbon Mass Flux and the Myth of Atmospheric Weathering	7
Breakthrough Curve Separation Using Applied Solute Tracers	7
Flow and Transport Modeling in Heterogeneous Sediments Using an Integral Approach	7
Disagreeing to Agree: Multimodel Analyses to Develop Good Neighbor Agreements	7
An Alternative Mechanism of Land Subsidence: Osmotic Effects Due to Seawater Intrusion	7
Towards Improved Remedial Outcomes in Categorical Aquifers with an Iterative Ensemble Smoother	7
Book Review: Urban Groundwater	7
A Tool for Forecasting the Arrival Time of a Tracer or a Pollutant at a Karst Spring	6
The Hydraulic Evolution of Groundwater‐Fed Pit Lakes After Mine Closure	6
Applying ²²⁴ Ra and	6
Monitoring Heat Transfer and Recharge Mechanisms in a Karst System Using Fiber Optic Distributed Temperature Sensing	6
Flopy: The Python Interface for MODFLOW	6
Using Geospatial Techniques and Analytic Hierarchy Process to Map Groundwater Potential Zones	6
An Agricultural Package for MODFLOW 6 Using the Application Programming Interface	6
Society News	5
Basic Hydrogeology: An Introduction to the Fundamentals of Groundwater Science	5
Groundwater Salinity: Applying the Specific Conductance and Water Type Proxy	5
Society News	5
Seasonal Groundwater Level Dynamics in Unconfined Aquifers across the United States	5
A Case Study for Determination of the Best Underground Dam Sites, Bursa Province, Turkey	5
San Antonio Water System, Texas Carrizo Aquifer Storage Recovery Program	5
Is Groundwater Research Under Threat? A Look Into the Closure of the USEPA ORD	5
Dipole Flow Tracer Test Models for Identifying Skin Properties and Ambient Groundwater Flow Effects	5
Model‐Based Approach to Determine Critical Design Parameters for Tandem Circulation Well Remediation Systems	5
Estimating Characteristic Grain Sizes and Effective Porosity from Hydraulic Conductivity Data	5
Simulation‐Optimization Approach for Siting Injection Wells in Urban Area with Complex Hydrogeology	5
NGWA News	5
Book Review: Analytical Groundwater Modeling: Theory and Applications Using Python	5
Impacts of Groundwater Pumping for Hydraulic Fracturing on Aquifers Overlying the Eagle Ford Shale	5
MODPATH‐RW : A Random Walk Particle Tracking Code for Solute Transport in Heterogeneous Aquifers	5
The Three Ages of Water: Prehistoric Past, Imperiled Present, and a Hope for the Future	5
Water Table Depth Estimates over the Contiguous United States Using a Random Forest Model	5
Society News	5
Read the Whole Issue!	4

Using Alternate Pumping and Cooperative Game Theory to Reduce Sea Water Intrusion	4
Groundwater: The Missing Educational Curriculum	4
Controls of Geochemical and Hydrogeochemical Factors on Arsenic Mobility in the Hetao Basin, China	4
Groundwater Ages in Intertill and Buried Valley Aquifers in Saskatchewan, Canada	4
A Generic Closed‐Loop Contaminant Treatment System Package for MODFLOW 6	4
Underground Hydromusicology: Subjective Interpretations of Groundwater‐Inspired Electronic Music	4
Book Review: Karst Hydrogeology, Geomorphology, and Caves	4
Continental Scale Hydrostratigraphy: Comparing Geologically Informed Data Products to Analytical Solutions	4
Exploring Freshwater Beneath the Ocean Floor	4
Evaluation of an Impulse‐Response Emulator for Groundwater Contaminant Transport Modeling	4
Wellbore Skin: Why Its Presence and Properties Are So Difficult to Predict	4
New Preconsolidation Heads Following the Long‐Term Hydraulic‐Head Decline and Recovery in Houston, Texas	4
Evaluation of Hydraulic Conductivity Estimates from Various Approaches with Groundwater Flow Models	4
	4
Information‐Driven Sequential Inversion for Transient Hydraulic Tomography	4
The Potential of Horizontal Wells for Aquifer Storage and Recovery in Saline Aquifers	3
	3
Saline Groundwater for Aquaculture: An Expanding Hydrogeological and Hydrogeophysical Frontier	3
Approximation of van Genuchten Parameter Ranges from Hydraulic Conductivity Data	3
Issue Information	3
Aquifer Recharge and Overexploitation: The Need for a New Storyline	3
PEST and AEM Modeling for Data Acquisition Planning	3
Thank You for Your Service	3
A Century (1906‐2024) of Groundwater and Land Subsidence Studies in Greater Houston Region: A Review	3
Time‐Lapse Geophysical Measurements for Monitoring Coastal Groundwater Dynamics in an Unconfined Aquifer	3
Accurate Simulation of Flow through Dipping Aquifers with MODFLOW 6 Using Enhanced Cell Connectivity	3
Interpreting Concentrations Sampled in Long‐Screened Wells with Borehole Flow: An Inverse Modeling Approach	3
SWIB —An Online Model to Estimate Daily Crop Water Stress, Irrigation Needs, and Soil Water Budget	3
A Novel Semi‐Analytical Solution of Over‐Damped Slug Test in a Three‐Layered Aquifer System	3
Comparing Groundwater Sampling Devices for Denitrification Assessment Using the N ₂	3
Influence of Geometric Characteristics on Water Flow and Solute Transport at Fracture Intersections	3
What Can Groundwater Monitoring Tell Us About Gas Migration? A Numerical Modeling Study	3
Revisiting MODFLOW 's Capability to Model Flow Through Sedimentary Structures	3
Generating a Statistically Constrained Quaternary Model of a Buried Bedrock Valley Using FDEM	3
Hydrogeological Functioning of a Karst Underground River Basin in Southwest China	3
A Review of Low‐Impact Development Factors Affecting Managed Aquifer Recharge	3
Estimation of Groundwater and Spring Water Residence Times near the Coast of Fukushima, Japan	3
	3
Arnold Verruijt (1940‐2022)	3