A study of the mutual influence of global circulation objects by a method of dispersive analysis

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Morozova, S V, Polyanskaya, E A, Kononova, N K, Molchanova, N P, Letuchiy, A V
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2019
• Subjects: Arctic
• Online Access: http://dx.doi.org/10.1088/1755-1315/386/1/012011; https://iopscience.iop.org/article/10.1088/1755-1315/386/1/012011/pdf; https://iopscience.iop.org/article/10.1088/1755-1315/386/1/012011

Abstract Three structural elements of the general circulation of the atmosphere on a global scale are considered: the Arctic oscillation, the Southern Oscillation, and the planetary tall frontal zone. The degree of influence of the Arctic Oscillation and the Southern Oscillation on the dynamics of the planetary tall frontal zone is estimated. The assessment is carried out by a method of analysis of the variance, which allows assessing the significance of the influence of one or more meteorological quantities of the studied value. A comparison of the variances has shown that the degree of influence of these objects on the dynamics of the planetary high altitude zone is 6% from the Arctic Oscillation and 7% from the Southern Oscillation. A comprehensive analysis has shown that the planetary high-altitude frontal zone has the highest intensity with negative anomalies of the Arctic Oscillation and the Southern Oscillation, and the lowest one with negative anomalies of the Arctic Oscillation and positive anomalies of the Southern Oscillation. A comparison with the Fisher criterion has not revealed any statistical significance. An important conclusion is formulated about the predominance of the influence of inherent internal processes in the dynamics of the planetary high-altitude frontal zone in comparison with the circulation structures adjacent to it.