Model Land is a concept proposed and explored by Professor Erica Thompson in her monograph Escape from Model Land. The idea will be well-known to those of us who use numerical models:

Models are built to simulate real world systems but to be useful they have to simplify the sheer complexity of nature. The way those simplifications are made is determined by the requirements, knowledge, experience, and biases of the model builder. Consequently, what these models simulate is not the real world but a world of its own making, a model land.

Erica implored us to get out of model land – to understand how the simplifications of the models make them wrong and use them carefully when they are informing real world decisions. This is absolutely vital, especially in my professional area where models are used to help us make decisions on flood risk. The key word in that last sentence is ‘help’ as models should never be making decisions for us otherwise, as Erica would likely say, that decision is made in model land and not the real world.

But when I hear the term model land, I have additional questions: what does a model land look like? What would it be like to explore one? How would life survive in one and could people call it home? These are probably not the most important questions for a modeller or decision-maker but wouldn’t it be fun?!

If games are ‘operas made out of bridges‘, models are simply bridges made out of bridges, or at best are very low quality operas. A game is a model of a system (sometimes often built using multiple models itself) – the bridge bit – that uses story and art to immerse players within it and bring it to life – the opera bit. Consequently, game worlds are themselves model lands. When you step into Link’s shoes and explore Hyrule in any game of the Zelda series, you are actually exploring a simplified representation of Hyrule, optimised for the purpose of the game and the hardware available. You are entering a model land.

What separates the model lands created by numerical models and game worlds is that paucity of opera. That’s all.

And we can fix that by using the Adventures in Model Land system and our imaginations.

Adventures in Model Land has been created by myself, Erica, Liz Lewis, Sam Illingworth, Rolf Hut, and Jess Enright as an open-source resource for numerical modellers. The latest version, v0.2, still in the beta stage, provides a step-by-step guide for the ‘operafication’ of any numerical model to create an explorable model land/game world. It leans heavily on the world-building methods of tabletop roleplay games (TTRPG) and the intention is to allow modellers to lead players on quests within their model lands.

At EGU this year, I led a short course using the v0.2 of Adventures in Model Land, leading over thirty participants through the worlding process, creating model lands and writing postcards describing their experiences. It was a great opportunity to test the idea out, gather some feedback, and further refine the system. We even had people designing new games based on the model lands they had brought to life! I think there is great potential in using the system as a workshop with modelling groups and the users of models to help them better understand the models used to make decisions – something I am working towards.

You can download the system for free and use it whatever you like. However, we would really appreciate feedback on the system and how you have used it. Please do also share your model lands and the games you create, our plan is to produce a compendium of our favourites in the future. I plan to release an update to the system later this year as a v1 – subscribe to this newsletter to keep up to date with progress and new releases.

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