The International Land Model Benchmarking (ILAMB) system described by Collier et al.  is a valuable and versatile set of software tools for the land surface modeling community to validate and improve their models. It is a next generation approach to community model verification and comparison, moving beyond the capabilities of the world’s first model inter-comparison project developed in the early 1990s, the Project for Intercomparison of Land Surface Parameterization Schemes (PILPS).
The ILAMB software package is open source, Python-based, community driven, extensible, and customizable. Given the growing recognition of the importance of the land surface in weather and climate prediction, its role in extreme events like droughts and heat-waves, and its growing importance as a source of feedbacks in a changing climate, ILAMB is becoming an invaluable tool for improving models of the terrestrial component of the Earth System.
Citation: Collier, N., Hoffman, F. M., Lawrence, D. M., Keppel‐Aleks, G., Koven, C. D., Riley, W. J., et al. . The International Land Model Benchmarking (ILAMB) system: Design, theory, and implementation. Journal of Advances in Modeling Earth Systems, 10. https://doi.org/10.1029/2018MS001354
—Paul A. Dirmeyer, Editor, JAMES