What question did this study set out to answer?

To establish a quantitative method for correlating transatlantic long-wave radio transmission characteristics with solar activity metrics, including sunspots, the solar constant, and Earth's magnetic field.

March 1, 1928Proceedings of the IRE

Correlation of Long Wave Transatlantic Radio Transmission with Other Factors Affected by Solar Activity

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To establish a quantitative method for correlating transatlantic long-wave radio transmission characteristics with solar activity metrics, including sunspots, the solar constant, and Earth's magnetic field.
Gathered daily values for sunspots via Wolfer numbers and solar constant variations via Abbot measurements.
Devised a magnetic disturbance index based on hourly average variations of horizontal and vertical components of Earth's magnetic field to match radio disturbance scales.
Classified diurnal transatlantic radio transmission into four distinct phases: full path daylight, full path darkness, sunrise transition, and sunset transition.
Demonstrated that standard magnetic indices either over- or under-represented contrast between disturbed and undisturbed conditions relative to radio observations.
Derived an hourly horizontal and vertical variation metric that successfully provides comparable contrast scales between magnetic disturbances and long-wave radio conditions.

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Implication

Observational analysis demonstrates quantitative links between transatlantic long wave radio transmission and geomagnetic variations, suggesting solar activity directly modulates global radio...

Cite This Study

C.N. Anderson (1928) studied this question.

synapsesocial.com/papers/6a8417bedc9bcdcbf8c6b6c4 https://doi.org/10.1109/jrproc.1928.221400

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Implication

Observational analysis demonstrates quantitative links between transatlantic long wave radio transmission and geomagnetic variations, suggesting solar activity directly modulates global radio...

Correlation of Long Wave Transatlantic Radio Transmission with Other Factors Affected by Solar Activity

Key Points

Discussion

Implication

Cite This Study

Correlation of Long Wave Transatlantic Radio Transmission with Other Factors Affected by Solar Activity

Key Points

Discussion

Implication

Cite This Study

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