A response of the mid-latitude ionosphere to propagation of the atmospheric gravity wave

E. L. Afraimovich; A. F. Yakovets; V. V. Vodyannikov; G. I. Cordienko; Ya. F. Ashkaliev; Yu. G. Litvinov; S. B. Akasov

doi:10.1117/12.783392

14 February 2008 A response of the mid-latitude ionosphere to propagation of the atmospheric gravity wave

E. L. Afraimovich, A. F. Yakovets, V. V. Vodyannikov, G. I. Cordienko, Ya. F. Ashkaliev, Yu. G. Litvinov, S. B. Akasov

Proceedings Volume 6936, Fourteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics; 69361A (2008) https://doi.org/10.1117/12.783392
Event: Fourteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2007, Buryatia, Russian Federation

Abstract

This study reports observations of the response of the mid-latitude ionospheric F-layer to the passage of the atmospheric gravity wave (AGW) produced by the July 2004 geomagnetic storm, using data from the ground ionosonde located at Alma-Ata (43.25°N, 76.92°E). Ionograms were recorded every 5 min. They were analysed for temporal variations of virtual heights of specific frequencies (the virtual heights of a constant electron density), critical frequencies of the F-layer (f_o,xF) and height profiles of the electron density (N(h)-profiles). The temporal behaviour of all F-layer parameters such as the altitude of its peak (h_mF), the electron density at the peak (NmF) and the half thickness of the layer (ΔhF) revealed well-defined wave structures throughout the entire night of 24-25 July 2004. A comprehensive understanding of the relationship between phases of various parameters of the F-layer is established. It is shown that the relationship between phases of h_mF, NmF and ΔhF variations is determined by the value of the wave front tilt. As a rule, the certain phase of ΔhF precedes that of h_mF, and NmF anticorrelates with ΔhF. Last result contrast with previous investigations, which have frequently assumed a negative correlation between NmF and h_mF. A small amplitude of NmF variations compared with N(t) at certain altitudes may be largely explained in terms of the height gradient of AGW amplitudes.

Citation Download Citation

E. L. Afraimovich, A. F. Yakovets, V. V. Vodyannikov, G. I. Cordienko, Ya. F. Ashkaliev, Yu. G. Litvinov, and S. B. Akasov "A response of the mid-latitude ionosphere to propagation of the atmospheric gravity wave", Proc. SPIE 6936, Fourteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 69361A (14 February 2008); https://doi.org/10.1117/12.783392

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Atmospheric propagation

Wave propagation

Magnetism

Particles

Atmospheric physics

Atmospheric plasma

Wavefronts

Show All Keywords

Keywords/Phrases

Search In:

Publication Years