The Great Circle Mapper, including all software, data, and the compilation and presentation of the data is Copyright © 1996-2013 Karl L. Swartz. All rights reserved.
The Great Circle Mapper name and logo are trademarks of the Great Circle Mapper.
Additional credits, copyrights, and licenses apply as detailed below.
Great Circle Mapper software incorporates several third-party software libraries:
Mac and the Mac logo are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. The Made on a Mac Badge is a trademark of Apple Computer, Inc., used with permission.
The Great Circle Mapper uses pre-rendered maps, stored in a custom image format. These maps are derived offline from multiple sources:
The Great Circle Mapper's location database includes information about landing facilities (including airports) and other types of locations compiled from many sources including those listed below. Specific source credits are noted on the information page for the airport or location.
Time zone definitions including daylight saving time (DST) transitions use the public-domain Timz Zone Database (aka tz or zoneinfo). The time zone for a given location is derived from official airport data or other sources and may not be correct.
Weather data (METAR and TAF) is from the NOAA Internet Weather Source.
Flags used on the airport information pages are from one or more of the following vexillological sources:
Information on this site may not be accurate or current and is not valid for flight planning or navigation. No warranty of fitness for any purpose is made or implied. Flight planning and navigation should only be done using official charts.
Copyright © 1996-2013
Karl L. Swartz.
All rights reserved.