DescriptionIonospheric absorption (en).svg	Diagram of day/night ionospheric attenuation cycle.
Date	June 15th 2007 (original image uploaded 2006-12-19}
Source	Own work, based on image from en.wikipedia; description page is/was here.
Author	This image created by Editor at Large, based on work by Elaragirl at en.wikipedia
Permission (Reusing this file)	Original was licensed as {{GFDL}} and {{GFDL-self-with-disclaimers}}. This version licensed as below: I, the copyright holder of this work, hereby publish it under the following license: Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original. This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue

Original JPEG upload log

(All user names refer to en.wikipedia)

• 2006-12-19 17:37 Elaragirl 332×274×8 (13707 bytes) Self-made image to explain day/night ionospheric attenuation cycle. Made by me in MSPaint.