Improvements of PBL scheme in INMCM5 climate model.

<p>Locally one-dimensional ABL model of the moderately stable and highly stable boundary layer of the atmosphere were evaluated with the data obtained from numerical experiments with eddy-resolving turbulence models. It is shown that the best results are obtained by parametrizations which maintain turbulence at large gradient Richardson numbers. &#160;These parametrizations of turbulent diffusion for stable stratification were introduced into the INM RAS Earth System model [1].</p><p>Based on a comparison with the reanalysis data, it is shown that an improved model of turbulence in the boundary layer reduces the average error in reproducing the current climate in high latitudes.</p><p>Authors want to acknowledge partial funding by Russian Foundation for Basic Research (RFBR project 20-05-00776) and support from Russian Science Foundation (RSF grant 20-17-00190).</p><p>1. Volodin, E. M., et al. "Simulation of the present-day climate with the climate model INMCM5." <em>Climate dynamics</em>&#160;49.11 (2017): 3715-3734.</p>