Ducting

From ExoDictionary
Jump to: navigation, search
This definition page has been automatically generated.
You can help ExoDictionary by expanding, updating, or correcting it.


This autostub has not yet had its initial copyediting proof and may contain significant formatting and even factual errors. You can improve Exodictionary by cleaning up the page markup and verifying that the definition is correct and then removing this tag.


This autostub has not yet had its initial categorization proof and may be categorized incorrectly. You can improve Exodictionary by removing inappropriate categories and then removing this tag.


Ducting

</dt>
The trapping of an electromagnetic wave, in a waveguide action, between two layers of the atmosphere, or between a layer of the atmosphere and the earth's surface. See refractivity, total refraction. </dd>
Ducting is likely to occur where the gradient of the index of refraction exceeds 48 N-units per 1000 feet of altitude. [[/a>|/a> ]]

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use