In moving toward radically open modeling, the Climate Collaboratorium Community will proceed through a series of stages. These stages will involve refinement along two dimensions.

  • The first is increasing ability to compare multiple simulation runs, first across a single model and then across multiple models.
  • The second is increasing ability to refine the workings of simulation software through the use of open source development techniques.

As the Community moves through these stages, the tasks involved become increasingly difficult.

The starting point is current practice, here called expert-prepared models, in which a small group of experts builds a simulation model and releases the results of its model runs in presentations or publications.

The five stages that go beyond expert prepared models and move toward the vision of radically open modeling are:

1. Live Interactive Use of a Single Model

2. Sharing Multiple Runs of a Single Model

3. Comparing Models

4. Model Disaggregation and Swapping out of Modules

5. Massive Collaborative Model Development and Analysis of Runs

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