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

DOI Awards Contract for Small UAV's

Wednesday, August 24, 2016 - 11:07am

“The Department expects to use these aircraft for a diverse set of missions including, wildlife and vegetation surveys, fire management, search and rescue, hydrologic study, cultural resource inventory, and surface mining monitoring, just to name a few,” said the Department’s Office of Aviation Service Director Mark Bathrick. “These UAS will not only provide us with better science and reduce the risk to our employees, but they will result in cost savings and better service for the Department and the American people.”

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Visualizing alternate map projections

Monday, July 18, 2016 - 9:36am

A single image showing every map projection class available in the d3-geo and d3-geo-projection JavaScript libraries.

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How well can you recognize land features? (game)

Wednesday, July 6, 2016 - 11:58am

GeoGuessr is a Street View-based geography quiz that gives you the challenge of guessing the locations of a series of random Street View images. What you’ve got are clues such as the landscape around, cars, street signs to show on a global Google Map place where you think the Street View image was taken. The closer your guess to the actual location then the more points you win. 

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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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