Physics Testing Harness

The GMTB physics testing harness provides a common infrastructure for testing physics parameterization developments for potential applicability for NWP. It consists of several “tiers” of modeling configurations arranged in a simple-to-complex hierarchy. Testing a physical parameterization innovation within such a structure allows for the sequential addition of model feedbacks that add layers of complexity to the interpretation of results as testing proceeds toward an operational configuration. Priority development of the physics testing harness has been focused on the single column model and low/medium resolution global reforecast tiers (using cold starts and cycling with data assimilation).