Ice Pie Models ❲TESTED × 2026❳

The final ICE score is the average of these three numbers. By multiplying the scores or averaging them, the team creates a ranked list. The projects with the highest scores naturally float to the top, representing the optimal intersection of high reward, high certainty, and low effort.

The power of the model lies in its simplicity. Each initiative is rated on a scale of 1 to 10 across three distinct dimensions: ice pie models

For further reading, see: Wadhams, P. (2018). "Pancake Ice Dynamics in the Marginal Ice Zone." Cambridge University Press; and the open-source IcePieModel toolkit available on GitHub (DOI: 10.5281/zenodo.7894561). The final ICE score is the average of these three numbers

How sure are you that the impact estimate is correct? (Based on data/research). The power of the model lies in its simplicity

: Use a standard 1–10 scale for each category (e.g., 10 is very easy, 1 is very difficult).

In glaciology, these are more formally known as or shallow ice approximation (SIA) models . They were first developed in the mid-20th century (e.g., by John Nye in the 1950s) to understand how glaciers respond to changes in snowfall, melting, and bedrock shape.