Tracking traveling ionospheric disturbances through Doppler-shifted AM radio transmissions Article Swipe
Claire Trop
,
J. LaBelle
,
P. J. Erickson
,
Shun‐Rong Zhang
,
David McGaw
,
T. O. G. Kovacs
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.5194/amt-18-1909-2025
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.5194/amt-18-1909-2025
Six specialized radio receivers were developed to measure the Doppler shift of amplitude modulation (AM) broadcast radio carrier signals due to ionospheric effects. Five were deployed approximately in a circle at a one-hop distance from an 810 kHz clear-channel AM transmitter in Schenectady, New York, and the sixth was located close to the transmitter, providing a reference recording. Clear-channel AM signals from New York City and Connecticut were also received. The experiment confirmed detection of traveling ionospheric disturbances (TIDs) and measurement of their horizontal phase velocities through monitoring variations in the Doppler shift of reflected AM signals imparted by vertical motions of the ionosphere. Comparison of 12 events with simultaneous global navigation satellite system (GNSS)-based TID measurements showed generally good agreement between the two techniques slightly more than half the time and substantial differences slightly less than half the time, with differences attributable to differing sensitivities of the techniques to wave altitude and characteristics within a complex wave environment. Detected TIDs had mostly southward phase velocities, and in four cases they were associated with auroral disturbances that could plausibly be their sources. A purely automated software technique for event detection and phase velocity measurement was developed and applied to 1 year of data, revealing that AM Doppler sounding is much more effective when using transmitter signals in the upper part of the AM band (above 1 MHz) and demonstrating that the AM Doppler technique has promise to scale to large numbers of receivers covering continent-wide spatial scales.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.5194/amt-18-1909-2025
- https://amt.copernicus.org/articles/18/1909/2025/amt-18-1909-2025.pdf
- OA Status
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- Cited By
- 1
- References
- 58
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- OpenAlex ID
- https://openalex.org/W4409879499
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4409879499Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.5194/amt-18-1909-2025Digital Object Identifier
- Title
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Tracking traveling ionospheric disturbances through Doppler-shifted AM radio transmissionsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-04-28Full publication date if available
- Authors
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Claire Trop, J. LaBelle, P. J. Erickson, Shun‐Rong Zhang, David McGaw, T. O. G. KovacsList of authors in order
- Landing page
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https://doi.org/10.5194/amt-18-1909-2025Publisher landing page
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https://amt.copernicus.org/articles/18/1909/2025/amt-18-1909-2025.pdfDirect link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://amt.copernicus.org/articles/18/1909/2025/amt-18-1909-2025.pdfDirect OA link when available
- Concepts
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Ionosphere, Doppler effect, Tracking (education), Radio wave, Physics, Geodesy, Remote sensing, Meteorology, Computer science, Telecommunications, Geophysics, Astronomy, Geology, Psychology, PedagogyTop concepts (fields/topics) attached by OpenAlex
- Cited by
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1Total citation count in OpenAlex
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2025: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.A | 183 |
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