Automatic scaling of polar ionograms

• Published in: Antarctic Science
• Main Authors: Scotto, Carlo, Pezzopane, Michael
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2011
• Subjects: Geology; Ecology, Evolution, Behavior and Systematics; Oceanography; Terra Nova Bay; Mario Zucchelli; Mario Zucchelli Station; Antarc*; Antarctic Science; Antarctica
• Online Access: http://dx.doi.org/10.1017/s0954102011000587; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000587

Abstract The Istituto Nazionale di Geosifica e Vulcanologia (INGV) software for automatic scaling of ionograms (Autoscala) was improved by introducing a system to identify D region absorption events, spread-F condition (frequency spreading in the F region), and Z-ray propagation. The algorithm was applied to a series of ionograms recorded by the AIS-INGV (Advanced Ionospheric Sounder-INGV) ionosonde installed at the Mario Zucchelli Station (74.7°S, 164.1°E), Terra Nova Bay, Antarctica. Critical cases are shown to illustrate the behaviour of the software.