Ph.D. Candidate Jeremy Berman spent summer conducting research with at the National Center for Atmospheric Research (NCAR)

August 31, 2018 - Ph.D. Candidate Jeremy Berman spent part of his summer conducting research at the National Center for Atmospheric Research (NCAR). This visit was supported through Jeremy's participation in NCAR's Graduate Visitor Program. The goal of Jeremy's visit was to design a new diagnostic tool to implement in NCAR's Model for Prediction Across Scales (MPAS), which is a relatively new model for simulating global weather forecasts. The purpose of this diagnostic tool is to obtain more detailed information about processes related to potential vorticity (PV) modification, so that researchers can more accurately quantify how the model is changing atmospheric PV over subsequent forecasts. To achieve this goal, Jeremy worked with MMM Director Dr. Chris Davis to discuss and design the new model tool. In addition, Jeremy collaborated with several scientists within the MPAS model and data assimilation teams to fully synthesize the diagnostic with the model's source code. This tool will directly assist Jeremy in his dissertation topic, which focuses on quantifying how uncertainty in PV modification by the warm conveyor belt of cyclones is associated with subsequent downstream forecast errors along the midlatitude jet stream. Moreover, thanks to this diagnostic tool, other research scientists will have to the chance to more accurately understand how the model's forecasts are evolving over time, which will allow for more opportunities to investigate and reduce model weather forecast errors.

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