TY - JOUR

T1 - Trends of the Vertical Component of the Wave Activity Flux in the Northern Hemisphere

AU - Didenko, K.A.

AU - Ermakova, T.S.

AU - Koval, A.V.

AU - Savenkova, E.N.

N1 - Export Date: 10 November 2024 Сведения о финансировании: Russian Science Foundation, RSF, 20-77-10 006-P Сведения о финансировании: Russian Science Foundation, RSF Текст о финансировании 1: This work was supported by the Russian Science Foundation, project no. 20-77-10\u2009006-P, https://rscf.ru/project/20-77-10\u2009006/ .

PY - 2024/10/1

Y1 - 2024/10/1

N2 - Abstract: Long-term trends of the three-dimensional Plumb wave activity flux are studied using data from the JRA-55 global atmospheric reanalysis. The vertical component of the Plumb flux characterizes the propagation of atmospheric planetary waves generated in the troposphere to the upper atmosphere and is used for the analysis of the stratosphere–troposphere dynamic interaction. The study of the wave activity flux covers three latitudinal sectors of the Northern Hemisphere from December to March for a 64-year period since 1958. It is shown that in January and March over the Russian Far East there is a statistically significant trend for an increase in the wave activity flux from the troposphere to the stratosphere, which can contribute to an increase in the frequency of cold wave formation in the mid-latitude troposphere. The study of the stratosphere–troposphere dynamic interaction in general and wave activity fluxes in particular is necessary for solving problems related to both global and regional climatic changes and mixing of long-lived atmospheric components. © Pleiades Publishing, Ltd. 2024. ISSN 0016-7932, Geomagnetism and Aeronomy, 2024, Vol. 64, No. 5, pp. 691–700. Pleiades Publishing, Ltd., 2024.

AB - Abstract: Long-term trends of the three-dimensional Plumb wave activity flux are studied using data from the JRA-55 global atmospheric reanalysis. The vertical component of the Plumb flux characterizes the propagation of atmospheric planetary waves generated in the troposphere to the upper atmosphere and is used for the analysis of the stratosphere–troposphere dynamic interaction. The study of the wave activity flux covers three latitudinal sectors of the Northern Hemisphere from December to March for a 64-year period since 1958. It is shown that in January and March over the Russian Far East there is a statistically significant trend for an increase in the wave activity flux from the troposphere to the stratosphere, which can contribute to an increase in the frequency of cold wave formation in the mid-latitude troposphere. The study of the stratosphere–troposphere dynamic interaction in general and wave activity fluxes in particular is necessary for solving problems related to both global and regional climatic changes and mixing of long-lived atmospheric components. © Pleiades Publishing, Ltd. 2024. ISSN 0016-7932, Geomagnetism and Aeronomy, 2024, Vol. 64, No. 5, pp. 691–700. Pleiades Publishing, Ltd., 2024.

UR - https://www.mendeley.com/catalogue/3303d5e4-f1e3-320e-9668-0c4266632db5/

U2 - 10.1134/s0016793224600632

DO - 10.1134/s0016793224600632

M3 - статья

VL - 64

SP - 691

EP - 700

JO - Geomagnetism and Aeronomy

JF - Geomagnetism and Aeronomy

SN - 0016-7932

IS - 5

ER -