, 2022/4/8: Original
2022/6/17: Revised to stress importance of not bundling features in a single PR
2022/8/31: Revised to remove duplicate terminology section
2023/4/18: Revised to clarify that modifications to an existing stealth feature is considered a stealth feature.
2023/5/18: Clarify that breaking the addition of a single feature into multiple PRs is welcome
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This document describes the policy for bringing in new features and changing existing code in the E3SM model. This
(Implementing this new policy requires a significant amount of work improving: the E3SM diagnostics, CIME test suites and developing documentation, . See collected /wiki/spaces/CNCL/pages/3315138566)
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Coupled model: B-case runs (~100 years) for WC, cryosphere and BGC configurations
Component models: F, I and G cases, typically much shorter (e.g. 5 year F case with cyclic year 2010 forcing)
Updated periodically when climate changes are integrated, or monthly ( to check for unintended changes)
New features will be evaluated with respect to these reference solutions, with documentation on the import metrics
Note: E3SM Reference solutions and related documentation not yet ready!
Section 1: New Feature Request Process and Documentation Requirements
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