Troposphere Vertical Structure Simulation with the INMCN Climate Model

Abstract

The comparison of modern climate models with reanalysis and observational data indicates significant success in general atmospheric circulation modeling and reveals the problems of climate simulation for some regions which are often associated with errors in the modeling of the vertical troposphere structure. The results of simulation of inversions and low- and upper-level tropospheric jet streams in Russia were analyzed and verified using the INMCM climate model based on radiosonde data. It is shown that the model accurately reproduces the frequency of inversions and jet streams in various regions of Russia. At the same time, climatology of such characteristics as surface inversion fraction, jet stream height, and some others is simulated less accurately, and the verification results vary greatly for different points. It is demonstrated that the INM-CM5.0 model can be successfully used to assess possible changes in the Novorossiysk bora based on the link between the large-scale flow and the bora frequency.