The #30DayMapChallenge started from a post by Topi Tjukanov, who listed everything from points on Nov. 1 to population on Nov. 23. Tjukanov works for GISPO, a GIS consulting firm based in Helsinki, Finland, and invited GIS enthusiasts to use any tool at their disposal to participate.
Announcing #30DayMapChallenge in November 2019! Create a map each day of the month with the following themes ������ No restriction on tools. All maps should be created by you. Doing less than 30 maps is fine. #gischat #geography #cartography #dataviz pic.twitter.com/6Go4VFWcJB — Topi Tjukanov (@tjukanov) October 25, 2019
“For better or for worse, I am an avid Twitter user and I am pretty linked in with all of the different data science, mapping and civic tech folks on Twitter,” Edelstein said. “I saw this 30-day map challenge come up and I just like to look at what creativity other people like to use, but also then it is a chance for me to test out my own skills ...”
He said his favorite part of the challenge so far has been the "points" portion, where he mapped water main breaks in Syracuse since 2004. But the creativity derived from the challenge has brought to light new and innovative ideas on how to use data openly available to the public.
Catching up (and will try to stay relatively current) on the #30DayMapChallenge starting with Water Main Breaks in @Syracuse1848 since 2004. Code: https://t.co/6Ifx2n3Kz5 Data: https://t.co/0DWJJlxCNT pic.twitter.com/SuJExXZi47 — Sam Edelstein (@samedelstein) November 3, 2019
The hashtag to date has featured examples from around the globe with everything about the density of bombs dropped on London during the Blitz in World War II to worldwide airline flight paths.
Day 4 of #30DayMapChallenge — Hexagons Density of bombs dropped on London at night during the Blitz (Oct 1940 to June 1941). �� Less bombs �� More bombs Tools: QGIS Data: Bomb Sight by University of Portsmouth, @openstreetmap pic.twitter.com/N1fL26daqx — Robin Hawkes (@robhawkes) November 4, 2019