Monostatic observation of the F region structure
Article first published online: 7 DEC 2012
This paper is not subject to U.S. copyright. Published in 1988 by the American Geophysical Union.
Volume 23, Issue 4, pages 580–584, July-August 1988
How to Cite
1988), Monostatic observation of the F region structure, Radio Sci., 23(4), 580–584, doi:10.1029/RS023i004p00580.(
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 24 APR 1988
- Manuscript Received: 17 AUG 1987
F region parameters can change by relatively large amounts over short periods of time (fraction of an hour) under so-called “undisturbed” conditions. There is evidence that these changes are due to propagating acoustic gravity waves. While the periods of these variations and other local parameters (Doppler velocity and angle of arrival) can be measured with a high-resolution digital ionosonde, other quantities like wavelength or magnitude and direction of the propagation velocity cannot be observed. The Clarke Lake radio astronomical antenna array which can be operated in the HF band allows tracking the motion of medium scale (100–500 km) disturbances by observation of the changes in the apparent position of radio stars. Some first data samples were recorded and analyzed (R. L. Higgins and B. McManus, private communication, 1987).