Hurricane-profile-en.svg

Summary

Description Hurricane-profile-en.svg	English: Tropical cyclones form when the energy released by the condensation of moisture in rising air causes a positive feedback loop over warm ocean waters.
Date	31 March 2007
Source	http://earthobservatory.nasa.gov/Library/Hurricanes/Images/hurricane_section.gif
Author	Robert Simmon, NASA GSFC, Nichalp
Other versions	http://commons.wikimedia.org/wiki/Image:Hurricane-profile-blank.svg

Licensing

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	This file is in the public domain in the United States because it was solely created by NASA . NASA copyright policy states that "NASA material is not protected by copyright unless noted ". (See Template:PD-USGov , NASA copyright policy page or JPL Image Use Policy .)
	Warnings: Use of NASA logos , insignia and emblems is restricted per U.S. law 14 CFR 1221 . The NASA website hosts a large number of images from the Soviet / Russian space agency , and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI . [1] See also {{PD-Hubble}} and {{Cc-Hubble}} . The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content . Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

This work is based on a work in the public domain . It has been digitally enhanced and/or modified. This derivative work has been (or is hereby) released into the public domain by its author, Nichalp . This applies worldwide.

In some countries this may not be legally possible; if so:

Nichalp grants anyone the right to use this work for any purpose , without any conditions, unless such conditions are required by law.

Original upload log

The original description page was here . All following user names refer to en.wikipedia.

Date/Time	Dimensions	User	Comment
2007-03-31 14:19	1000×500× (37244 bytes)	Nichalp	{{Information \|Description=Tropical cyclones form when the energy released by the condensation of moisture in rising air causes a positive feedback loop over warm ocean waters. \|Source=http://earthobservatory.nasa.gov/Library/Hurricanes/Images/hurricane_s

Summary

Licensing

Original upload log

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copyright status

copyrighted, dedicated to the public domain by copyright holder

copyright license

released into the public domain by the copyright holder

inception

31 March 2007