Ion-acoustic solitary waves and spectrally uniform scattering cross section enhancements

• Published in: Annales geophysicae (1988) Vol. 28; no. 6; pp. 1299 - 1306
• Main Authors: EKEBERG, J, WANNBERG, G, ELIASSON, L, STASIEWICZZ, K
• Format: Journal Article
• Language: English
• Published: Göttingen Copernicus 01.01.2010; Copernicus GmbH; Copernicus Publications
• Subjects: Auroral ionosphere; Earth, ocean, space; Exact sciences and technology; External geophysics; Fysik; Ionosphere; Ionosphere (Auroral ionosphere; NATURAL SCIENCES; NATURVETENSKAP; Nonlinear phenomena; Physics; Physics of the ionosphere; Physics of the magnetosphere; Plasma waves and instabilities; Space plasma physics; Space plasma physics (Nonlinear phenomena); polar regions; Svalbard; Arctic region; Norway, Svalbard; Plasma; Plasma physics; Electrostatic wave; Cross section (collision); Non linear phenomenon; acoustical waves; Plasma instability; Ionosphere (Auroral ionosphere; Plasma waves and instabilities); Non linear theory; Incoherent scattering; Polar region; transient phenomena; Ion acoustic wave; Space plasma physics (Nonlinear phenomena)

Spectra measured by incoherent scatter radars are formed predominantly by scattering of the incident signal off ion-acoustic and Langmuir waves in the ionosphere. Occasionally, the upshifted and/or downshifted lines produced by the ion-acoustic waves are enhanced well above thermal levels and referr...