Open AccessMethod for calculating torsional oscillations in Earth’s atmosphere from NCEP/NCAR, MERRA-2, ECMWF ERA-40, and ERA-Interim
Author(s) -
Olga Zorkaltseva,
Olga Zorkaltseva,
Viatcheslav A. Mordvinov,
Viatcheslav A. Mordvinov,
Елена Девятова,
Elena Devyatova,
Наталья Домбровская,
Natalya Dombrovskaya
Publication year - 2019
Publication title -
solnečno-zemnaâ fizika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.11
H-Index - 2
ISSN - 2412-4737
DOI - 10.12737/szf-51201910
Subject(s) - atmosphere (unit) , consistency (knowledge bases) , interim , environmental science , gcm transcription factors , meteorology , general circulation model , climatology , atmospheric sciences , geology , physics , climate change , mathematics , geography , archaeology , oceanography , geometry
In this paper, we describe a method for calculating low-frequency zonal-mean zonal wind variations, which we call torsional oscillations. We compare the torsional oscillations calculated from the NCEP/NCAR reanalysis I, MERRA-2, ECWMF ERA-40, and ERA-Interim projects, using different methods of processing the original data. We estimate the degree of consistency of torsional oscillations, obtained from different reanalysis projects, and discuss the use of torsional oscillations to study circulation processes in the atmosphere.