<abstract xmlns="http://www.w3.org/1999/xhtml"><p> A great circle route (GCR) is the shortest route on a spherical earth model. Do we have a visual diagram to handle the shortest route? In this paper, a graphical method (GM) is proposed to solve the GCR problems based on the celestial meridian diagram (CMD) in celestial navigation. Unlike developed algebraic methods, the GM is a geometric method. Appling computer software to graph, the GM does not use any equations but is as accurate as using algebraic methods. In addition, the GM, which emphasizes the rotational surface, can depict a GCR and judge its benefit.</p></abstract>

A great circle route (GCR) is the shortest route on a spherical earth model. Do we have a visual diagram to handle the shortest route? In this paper, a graphical method (GM) is proposed to solve the GCR problems based on the celestial meridian diagram (CMD) in celestial navigation. Unlike developed algebraic methods, the GM is a geometric method. Appling computer software to graph, the GM does not use any equations but is as accurate as using algebraic methods. In addition, the GM, which emphasizes the rotational surface, can depict a GCR and judge its benefit.

A Graphical Method for Great Circle Routes

Department of Civil Engineering, National Taiwan University,

Merchant Marine Department, National Taiwan Ocean University,

Department of Civil Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617,

Polish Maritime Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"A Graphical Method for Great Circle Routes"}

A great circle route (GCR) is the shortest route on a spherical earth model. Do we have a visual diagram to handle the shortest route? In this paper, a...

A Graphical Method for Great Circle Routes

Published Online: Apr 12, 2017

Page range: 12 - 21

DOI: https://doi.org/10.1515/pomr-2017-0002

Keywords
transoceanic shipping, great circle route, waypoints, celestial meridian diagram

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

A Graphical Method for Great Circle Routes

Published Online: Apr 12, 2017

Page range: 12 - 21

DOI: https://doi.org/10.1515/pomr-2017-0002

Keywordstransoceanic shipping, great circle route, waypoints, celestial meridian diagram

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
transoceanic shipping, great circle route, waypoints, celestial meridian diagram