Mean ionospheric properties in winter at Zhongshan Station, Antarctica

Shunlin, Liu and Longsong, He and Ruiyuan, Liu (1997) Mean ionospheric properties in winter at Zhongshan Station, Antarctica. Advances in Polar Science, 8 (2). pp. 133-138.

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Abstract

Ionograms taken from a Digisonde Portable Sounder (DPS-4) at Zhongshan Station of Antarctica in 1995 are used to analyze the mean ionospheric properties in winter. The F region is rather unstable in winter and has large diurnal variation. The monthly medium value of f0F2 has a main peak around 0900UT when maximum value occurs and a sub-peak between 1300 - 1500UT. It may be affected synthetically by the low energy electron precipitation in cusp region, the high latitude plasma convection and the solar radiation, resulted in so called F region magnetic noon phenomena. Low values of f0F2 occur in post-midnight (2000 - 0100UT) when Zhongshan Station crosses the ionospheric polar hole. Sporadic E layer which caused mostly by auroral particle precipitation can be observed almost every day with the highest value of f0E8 around 1700UT. The diurnal variation of E layer is relatively smooth.

Item Type:	Article
Related URLs:
Keywords:	high latitude ionosphere, magnetic noon phenomena, plasma convection, polar hole, Zhongshan Station.
Subjects:	Unspecified
Organizations:	Unspecified
Date Deposited:	24 Apr 2023 12:50
URI:	http://library.arcticportal.org/id/eprint/2140

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