Fall 2019 Newsletter

GoldSim Has Moved!

Our new address is:

255 S. King Street, Suite 800
Seattle, Washington 98104

Our new location will accommodate group training classes and workshops near the amenities of downtown and access to public transportation from the SeaTac airport.

GoldSim 12.1.4 Has Been Released

This maintenance update includes minor fixes and graphical enhancements. All of the updates are described in detail in the Download Section of the GoldSim website. Models saved in GoldSim 12.1 will be seamlessly upgraded when opened in GoldSim 12.1.4.

Recent GoldSim Applications of Interest

Great Salt Lake Integrated Water Resources Model

GoldSim is being used to model the Great Salt Lake, the largest salt water lake in the Western Hemisphere. Water levels and salinity of the lake are predicted in order to support future management decisions. The model incorporates climate factors and runoff from 38 river sub-basins across Utah, Wyoming and Idaho. The model is structured to facilitate scenarios that allow users to better understand how changes in climate, land use, and population can affect the Great Salt Lake

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Coupling PhreeqcRM with GoldSim

Intera Geoscience and Engineering Solutions recently developed a model that couples PhreeqcRM with GoldSim using an external dynamic link library (DLL). This coupling has been successfully benchmarked against examples from the PHREEQC manual and tested on a complex acid rock drainage conceptual case. While being completely dynamic and seamless, this implementation runs nearly as fast as native PHREEQC simulations allowing Monte Carlo calculations to fully propagate uncertainty in transport models. Furthermore, the approach is highly flexible and efficient as it enables the user to run numerous types of simulations without the need to change the DLL, thus saving potentially significant model preparation time. This tool offers mine operators the possibility to evaluate potential mine impacts and make operational decisions in real time using scientifically-defensible mechanistic models in a probabilistic framework.

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Simulating the Impacts of Fake News on Voting Outcomes

A GoldSim model, built by Eric Clemons and his team at the Wharton School of the University of Pennsylvania, simulates voter outcomes in the presence of fake news. Popular press reports claim that Cambridge Analytica has pioneered the use of personal data to craft stories to maximize the response of specific groups of voters, but they propose no mechanisms to explain how this works.  The model performs four simulation experiments in order to explore the impact of three strategies for the creation and distribution of fake news. The model was constructed using Systems Dynamics concepts that are inherent in GoldSim, which is ideally suited to modeling the changes in populations over time as they are subject to a variety of forces.

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GoldSim in Academia

Some notable GoldSim academic applications that we have recently come across:

  • A textbook on Operational Safety of Dams and Reservoirs (Learn More)
  • An integrated model of forage, meat and emission in beef cattle production (Learn More)
  • Probabilistic prediction model for submarine propulsion shaft life (Learn More)

If you would like us to highlight your GoldSim model, contact us.

Other News

End of Support for Windows 7

With Microsoft’s announcement to discontinue support for Windows 7 on January 14, 2020, GoldSim plans to end support for this platform.

2020 Webinar Schedule

We are currently working on a list of topics to cover in 2020 for our monthly webinars. If you have any modeling topics that you would like to see presented, please let us know. Also, we always welcome guest speakers so tell us if you are interested in collaborating with us or presenting a webinar. Guest webinars are by far our most popular.