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Electron Temperature in Nighttime Sporadic E Layer at Mid-latitude : Volume 26, Issue 3 (26/03/2008)

By Oyama, K.-i.

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Book Id: WPLBN0003979873
Format Type: PDF Article :
File Size: Pages 9
Reproduction Date: 2015

Title: Electron Temperature in Nighttime Sporadic E Layer at Mid-latitude : Volume 26, Issue 3 (26/03/2008)  
Author: Oyama, K.-i.
Volume: Vol. 26, Issue 3
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Mori, H., Liu, J. Y., Abe, T., & Oyama, K. (2008). Electron Temperature in Nighttime Sporadic E Layer at Mid-latitude : Volume 26, Issue 3 (26/03/2008). Retrieved from

Description: Institute of Space Science, National Central University, Jhongda Rd., Jhongli, Taiwan. Electron temperature in the sporadic E layer was measured with a glass-sealed Langmuir probe at a mid-latitude station in Japan in the framework of the SEEK (Sporadic E Experiment over Kyushu)-2 campaign which was conducted in August 2002. Important findings are two fold: (1) electron temperature and electron density vary in the opposite sense in the height range of 100–108 km, and electron temperature in the Es layer is lower than that of ambient plasma, (2) electron temperature in these height ranges is higher than the possible range of neutral temperature.

These findings strongly suggest that the heat source that elevates electron temperature much higher than possible neutral temperature exists at around 100 km, and/or that the physical parameter values, which are used in the present theory to calculate electron temperature, are not proper.

Electron temperature in nighttime sporadic E layer at mid-latitude

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