Abstract
EVE, a toolkit for Extended Verification and Validation of Earth Systems, is being developed to provide automated climate reproducibility testing in ACME. This toolkit will allow developers to analyze non-bit-for-bit code modification and determine if the model still produces statistically equivalent climates or not. EVE will help prevent long, costly V&V analyses of non-bit-for-bit code modifications, give developers more flexibility in adding new features and scientific advances, and build confidence in the model as it develops.