2019 AGIC Education and Training Symposium

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October 1 - 4, 2019 at the Prescott Resort in Prescott, AZ

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GIS News

Why is North at the top of our maps?

Monday, June 27, 2016 - 11:37am

Given such a long history of human map-making, it is perhaps surprising that it is only within the last few hundred years that north has been consistently considered to be at the top.  Early European maps had east at the top (orientation is derived from orient, or east); Islamic maps faced south.  When maps changed to north-at-top is difficult to pinpoint, but it came relatively late in history.

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Light Pollution shown on 3D globe

Friday, June 17, 2016 - 2:54pm

A new online atlas of artificial sky brightness is now available, based on updated light pollution data published last week. (There’s also a 3D globe version that may not work in all browsers.) Light pollution, as I’ve blogged before, is the bane of professional and amateur astronomers alike, obscuring fainter objects and interfering with observations, both naked-eye and through telescopes. As the article in Science Advances puts it, “This atlas shows that more than 80% of the world and more than 99% of the U.S. and European populations live under light-polluted skies. The Milky Way is hidden from more than one-third of humanity, including 60% of Europeans and nearly 80% of North Americans.” [Rumsey Map Center]

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National Park Maps (to view, save, and download)

Friday, June 17, 2016 - 2:39pm

NPMaps.com is an independent website and is not affiliated with the National Park Service. But it's a pretty impressive one-man project, worth poking around in.  This site currently has 1,059 free high-resolution national park maps to view, save, and download.

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Guide to figuring out the age of an undated world map

Friday, June 3, 2016 - 10:54am

Found in the Map Room (Feedly RSS).  Here there be dragons.  But they're kind of fun to discover. 

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AZ Drone Legislation

Wednesday, May 25, 2016 - 8:47am

Arizona is on track to join a handful of states hoping to woo companies like Amazon and Google by making it easier for them to operate commercial drones.

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