Numerical Study of the Arctic Oscillation Impact on the Atmospheric Blocking Characteristics

Atmospheric blocking is the most common cause of extreme weather conditions. In the present paper, model data are used to investigate the relationship between the Arctic Oscillation index and the characteristics of atmospheric blocking. The dependence of the duration and intensity of blocking on the...

Full description

Saved in:
Bibliographic Details
Published in:Russian meteorology and hydrology 2023-11, Vol.48 (11), p.946-953
Main Authors: Borovko, I. V., Gradov, V. S., Platov, G. A., Krupchatnikov, V. N.
Format: Article
Language:English
Subjects:
Arctic Oscillation
Atmospheric blocking
Atmospheric Sciences
Earth and Environmental Science
Earth Sciences
Enstrophy
Extreme weather
Meteorology
Weather
Weather conditions
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Atmospheric blocking is the most common cause of extreme weather conditions. In the present paper, model data are used to investigate the relationship between the Arctic Oscillation index and the characteristics of atmospheric blocking. The dependence of the duration and intensity of blocking on the index (or phase) of the principal mode during its initial period is estimated. A typical blocking episode is considered, and it is shown that increased values of integral regional enstrophy can be an indicator of the change in the dynamic regime.
ISSN:1068-3739
1934-8096
DOI:10.3103/S1068373923110031