Doubly Periodic SCREAM: A Tool to Connect High Resolution Global Modeling with ARM Observations

Description

In this poster we present the doubly periodic configuration of the Simplified Cloud Resolving Energy Exascale Earth System Model (SCREAM).  SCREAM is a global storm resolving model and is thus very expensive, which makes it difficult to analyze specific cloud regimes at the process level.  Therefore, we develop doubly periodic SCREAM (DP-SCREAM) to serve as our “efficient” configuration, which represents a standalone three-dimensional cloud resolving model with prescribed large scale forcing and boundary conditions periodic in both horizontal directions.  We detail the design characteristics of DP-SCREAM and demonstrate its computational efficiency and advantages, which includes the ability to explore the horizontal resolution sensitivity of SCREAM with ease.  The extensive case library of DP-SCREAM is also presented, which will include several recent ARM field campaigns such as GoAmazon, MAGIC, COMBLE, and LAFE.  We describe how we will use ARM observations to evaluate DP-SCREAM at the process level and how this will feedback to improvements in global SCREAM simulations.  Preliminary results for DP-SCREAM simulations and how they compare to observations for the aforementioned ARM cases will also be presented.