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Euv-tec Proxy to Describe Ionospheric Variability Using Satellite-borne Solar Euv Measurements : Volume 10, Issue 22 (19/09/2012)

By Unglaub, C.

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Book Id: WPLBN0003979843
Format Type: PDF Article :
File Size: Pages 5
Reproduction Date: 2015

Title: Euv-tec Proxy to Describe Ionospheric Variability Using Satellite-borne Solar Euv Measurements : Volume 10, Issue 22 (19/09/2012)  
Author: Unglaub, C.
Volume: Vol. 10, Issue 22
Language: English
Subject: Science, Advances, Radio
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Jacobi, C., Nikutowski, B., Schmidtke, G., Brunner, R., & Unglaub, C. (2012). Euv-tec Proxy to Describe Ionospheric Variability Using Satellite-borne Solar Euv Measurements : Volume 10, Issue 22 (19/09/2012). Retrieved from

Description: University of Leipzig, Institute for Meteorology, Stephanstr. 3, 04103 Leipzig, Germany. An updated version of a proxy, termed EUV-TEC, describing the global total primary photoionisation is calculated from satellite-borne EUV measurements assuming a model atmosphere consisting of four major atmospheric constituents. Regional number densities of the background atmosphere are taken from the NRLMSISE-00 climatology. For calculation the Lambert-Beer law is used to describe the decrease of the radiation along their way through the atmosphere. The EUV-TEC proxy thus describes the ionospheric response to solar EUV radiation and its variability. EUV-TEC is compared against the global mean total electron content (TEC), a fundamental ionospheric parameter created from vertical TEC maps derived from GPS data. Strong correlation between these indices is found on different time scales. Results show that the EUV-TEC proxy represents the ionsopheric variability better than the conventional solar index F10.7 does, especially during high and moderate solar activity.

EUV-TEC proxy to describe ionospheric variability using satellite-borne solar EUV measurements

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