Analysis of the predictability of stratospheric variability and climate indices based on seasonal retrospective forecasts of the INM RAS climate model.

Autor: Vorobyeva, Vasilisa V., Volodin, Evgenii M.
Předmět:
Zdroj: Russian Journal of Numerical Analysis & Mathematical Modelling; Apr2021, Vol. 36 Issue 2, p117-126, 10p
Abstrakt: Ensemble numerical experiments for winter seasons of 1980–2014 were carried out with the use of the mathematical climate model of the Institute of Numerical Mathematics (INM) of the Russian Academy of Sciences developed initially for multi-year climate forecasts. Based on the results obtained in this research, a qualitative assessment of the reproduction of the North Atlantic (NAO) and Pacific-North American (PNA) oscillation indiceswas obtained. It was shown that the INM-CM5-0 climate model has a very high predictability of the winter NAO index and one, but not unique reason for this is the predictability of the stratospheric variability in the INM RAS model. The analysis of the quality of reproduction of the PNA index on a seasonal time scale for the INM-CM5-0 model has shown an acceptable result. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index