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December 6, 2025

Integrating the rTemp Water Temperature Model into GoldSim Using GSPy

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Posted by  Jason Lillywhite This blog post describes a GoldSim model application that integrates the rTemp water temperature model. Origi...
November 6, 2025

Log Pearson Type III Flood Frequency Analysis of Simulated Streamflow

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Posted by Jason Lillywhite Engineers frequently need to estimate design floods that exceed the range of observed data, like the 100-ye...
November 5, 2025

GoldSim Tutorial: Calculating and Displaying Annual Peak Flow Statistics

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Posted by Jason Lillywhite Reliable peak river flow statistics are necessary for effective design, planning, and...
November 3, 2025

Coupling GoldSim and MODFLOW using a Python Interface

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This post describes a method for coupling GoldSim with MODFLOW using GSPy (GoldSim's Python interface) and FloPy (a Python package for c...
October 19, 2025

River Network Optimization using GoldSim - Python Integration

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In this post, I'll explore a use case for the GSPy bridge : dynamically solving a complex river allocation problem using Python's P...
September 29, 2025

Modeling Integrated Water Resources Management (IWRM) with GoldSim

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Creating an Integrated Water Resources Management (IWRM) model is useful for making informed decisions. In this post, I'll explore how t...
September 6, 2025

An Investigation into Long-Term Precipitation Patterns in the Pacific Northwest

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When modeling long-term precipitation, a question is how to account for climate change. A common approach is to analyze historical data for ...
August 26, 2025

Clones, Arrays and Indexing for Large Multi-node Models; Solubility calculations and other uses

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We are pleased to showcase an interesting presentation by Alex Fitzpatrick, a Senior Modeler at Klohn Crippen Berger Australia. Presented at...
July 21, 2025

GoldSim Dashboard Tips ‘n’ Tricks

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Illustrative examples from models for radioactive waste management John Tauxe, PhD, PE • Tauxian Solutions, LLC with Jason Lillywhite • Gold...
July 14, 2025

Modeling Shared Water Rights in Reservoir Systems

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  Posted by   Jason Lillywhite Managing water in the Western United States is a complex challenge, especially in shared reservoir systems go...
May 12, 2025

Updated Mine Water Balance Model

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  Posted by   Jason Lillywhite Our conceptual Mine Water Balance model , built in GoldSim, has been updated to take advantage of the latest ...
May 6, 2025

Modeling Spatially Correlated Rainfall in GoldSim

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  Posted by   Jason Lillywhite Effective water resource management hinges on accurately modeling precipitation. But what happens when rainfa...
April 29, 2025

An evaluation of scenarios for a radioactive repository using GoldSim

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  Posted by        Jason Lillywhite Safely isolating high-level radioactive waste for millennia requires more tha...
March 31, 2025

Using Conditional Containers to Simulate Crop Growing Seasons

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  Posted by   Jason Lillywhite Modeling sequential, time-dependent processes lies at the heart of many dynamic simulations. But what happens...
March 4, 2025

GoldSim as a Predictive Tool for Oil Sands Mining Operations

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Posted by  Jason Lillywhite We are pleased to share insights from a recent presentation by Candace Whitten, GIT and Matthew...
February 7, 2025

Physically Based vs. Feedback Control Models: Choosing the Right Approach for Water System Simulation

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  Posted by    Jason Lillywhite We’ve often been asked about the best way to simulate flow between two tanks: should it be modeled physicall...
January 14, 2025

Building Better Water Balance Models for Tailings and Mine Rock Stockpiles

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Posted by  Jason Lillywhite We are pleased to share insights from a recent presentation by Tony Zheng (University of Albert...
December 8, 2024

Testing PrecipGen Across Four Sites

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Posted by  Jason Lillywhite This blog post presents the results of testing PrecipGen across four diverse locations to eval...
October 9, 2024

Estimating Exchange Fluxes Between Surface Water and Groundwater Using Stable Isotope and Radon Models

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Posted by  Jason Lillywhite I'm excited to share a recent paper by Lloyd Townley and Jeffrey Turner, which showcases th...
May 13, 2024

PrecipGen: Long-Term Precipitation Forecasting

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Posted by  Jason Lillywhite A GoldSim model that simulates long-term daily precipitation ( PrecipGen ) has been added to the GoldSim Model...