Grid navigation

From Glossary of Meteorology
Revision as of 14:21, 20 February 2012 by imported>Perlwikibot
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)



grid navigation

(Sometimes called grid system, G system.) A system of navigation by use of an arbitrary set of grid lines, as constructed to navigation by use of latitude and longitude.

A grid navigation chart contains a set of straight lines (grid navigations) parallel to the 180° and 0° meridians. The lines are used like true meridians on a Mercator map. With respect to the grid meridians, great circles and rhumb lines are identical. Thus, some navigational problems are greatly simplified when grid north is used instead of true north.
See aerologation.


Retrieved from "https://glossarystaging.ametsoc.net/w/index.php?title=Grid_navigation&oldid=19114"
Powered by MediaWiki
Powered by WikiTeq
Powered by Semantic MediaWiki
Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.