Deducing the structure of plasma density irregularities using signals from the Siple Station very-low-frequency transmitter

Journal Article · Fri Jan 01 00:00:00 EST 1988 · Antarctic Journal of the United States; (United States)

OSTI ID:5312121

Bell, T F; Ngo, H D; Helliwell, R A ^[1]

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1. Stanford Univ., CA (USA)

The study of density irregularities in the ionosphere and magnetosphere is important because these structures are manifestations of large-scale dynamic processes in the Earth's plasma environment which at present are only partially understood. Furthermore, these irregularities can catalyze interactions between plasma waves and energetic particles, leading to coupling between the magnetosphere, ionosphere, and upper atmosphere. At present, work is progressing at Stanford University on the development of a new technique to determine the characteristics of magnetic-field-aligned plasma density irregularities using the Siple Station very-low-frequency transmitter. This technique is based upon a recently discovered phenomenon in which coherent signals from ground- based very-low-frequency transmitters have been observed to excite short-wavelength electrostatic waves (greater than or equal to 5 meters but less than or equal to 100 meters) throughout large regions of the magnestosphere and ionosphere. This new diagnostic tool has recently been applied to very-low-frequency wave data acquired in 1982 during a joint international research effort involving Stanford University and the Canadian Communication Research Center.

• OSTI ID: 5312121
• Journal Information: Antarctic Journal of the United States; (United States), Vol. 23:5; ISSN 0003-5335
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EARTH MAGNETOSPHERE
PLASMA DENSITY
IONOSPHERE
ANTARCTICA
GEOMAGNETIC FIELD
INTERACTIONS
MEASURING METHODS
MORPHOLOGY
PLASMA WAVES
SATELLITES
VARIATIONS
ANTARCTIC REGIONS
EARTH ATMOSPHERE
MAGNETIC FIELDS
PLANETARY IONOSPHERES
POLAR REGIONS
640201* - Atmospheric Physics- Auroral
Ionospheric
& Magetospheric Phenomena