6.1 New developments and applications using the scale and aerosol aware Grell-Freitas convection parameterization

Grell, Georg A., National Oceanic and Atmospheric Administration/Earth Systems Research Laboratory/Global Systems Division (NOAA/ESRL/GSD), I. Jankov, Cooperative Institute for Research in the Atmosphere (CIRA) and NOAA/ESRL/GSD, S. R. Freitas, National Aeronautics and Space Administration, M. Bela, NOAA/ESRL/GSD, J. Olson, Cooperative Institute for Research in Environmental Sciences and NOAA/ESRL/GSD, and J. Berner, National Center for Atmospheric Research

A summary of the latest convection parameterization modeling efforts at NOAA's Earth System Research Laboratory (ESRL) will be presented. This includes may new updates to physical processes in the stochastic Grell-Freitas (GF) scale and aerosol aware convective parameterization. The original GF scheme is based on a stochastic approach implemented by Grell and Devenyi (2002) and described in more detail in Grell and Freitas (2014, ACP). It was expanded to include PDF's for vertical mass flux in deep and shallow convection, momentum transport, different options for cloud water detrainment profiles, and a new mid-level scheme. We will also provide some results applying the Stochastic Parameter Perturbation (SPP) to the vertical mass flux PDF's.