Case studies of dynamic characteristics of atmospheric planetary waves during stratospheric warmings in winter 2008

Author

Tolstikov, M.V. ; Medvedev, A.V. ; Ratovsky, K.G.

Author_Institution

Inst. of Solar-Terrestrial Phys., Irkutsk, Russia

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

This paper offers a method for investigating characteristics of propagation of wave-like temperature disturbances were observed at the height range of 20-100 km during development of the sudden winter stratospheric warmings in January-February 2008. Satellite data on vertical temperature distribution obtained by the Microwave Limb Sounder (MLS) aboard the spacecraft EOS Aura were used. In an approaching of two wave model the propagation directions of disturbances were calculated. Vorticity-like behavior of horizontal wave numbers structure was shown. Periods of disturbances vary from 11 to 27 days. Vertical wave numbers range is 35-80 km.

Keywords

atmospheric temperature; atmospheric waves; geophysical fluid dynamics; remote sensing; stratosphere; vortices; wind; AD 2008 01 to 02; EOS Aura spacecraft; Microwave Limb Sounder; altitude 20 km to 100 km; atmospheric planetary wave dynamics; horizontal wave number structure; stratospheric warming; two wave model; vertical temperature distribution; vorticity like behavior; wave like temperature disturbance; Atmospheric modeling; Atmospheric waves; Correlation; Earth Observing System; Ocean waves; Reflection; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050839

Filename

6050839