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ABSTRACT To help determine the origin of ionospheric echoes received on low-frequency sweep equipment it is very desirable to know their polarization, but unfortunately such information is

not easy to record or display in a convenient manner. However, one of the most important parameters of the polarization is the sense of rotation of the wave vector, and a method has been

developed which displays this in a simple way on a normal _h′_ƒ record. Access through your institution Buy or subscribe This is a preview of subscription content, access via your

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* Learn about institutional subscriptions * Read our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS REMOTELY IMAGING SEISMIC GROUND SHAKING VIA LARGE-N INFRASOUND

BEAMFORMING Article Open access 31 October 2023 A TEMPLATE-FREE APPROACH FOR WAVEFORM EXTRACTION OF GRAVITATIONAL WAVE EVENTS Article Open access 15 October 2021 MULTI-PHASE SEISMIC SOURCE

IMPRINT OF TROPICAL CYCLONES Article Open access 06 April 2021 REFERENCES * Carlson, H. N., Scientific Report 129, Ionosphere Res. Lab., Pennsylvania State University. * Watts, J. M., _J.

Geophys. Res._, 63, 717 (1958). Article  ADS  Google Scholar  * Ratcliffe, J. A., _“Magneto Ionic Theory”_ (Camb. Univ. Press). Download references AUTHOR INFORMATION AUTHORS AND

AFFILIATIONS * Ionosphere Research Laboratory, Pennsylvania State University, University Park, Pennsylvania A. BRUNNSCHWEILER & H. N. CARLSON Authors * A. BRUNNSCHWEILER View author

publications You can also search for this author inPubMed Google Scholar * H. N. CARLSON View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND

PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE BRUNNSCHWEILER, A., CARLSON, H. Identification of Mode in Low-Frequency Sweep Ionospheric Sounding, and Interference

Patterns between Overlapping Echoes. _Nature_ 188, 217–218 (1960). https://doi.org/10.1038/188217a0 Download citation * Issue Date: 15 October 1960 * DOI: https://doi.org/10.1038/188217a0

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