Worst Eclipse Map Ever Becomes the Funniest
The Map Room
by Jonathan Crowe
1d ago
This Mastodon post makes a bad map of this week’s eclipse into the funniest map of this week’s eclipse ..read more
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New Eclipse Map Claims Narrower Path of Totality
The Map Room
by Jonathan Crowe
6d ago
CNN: “New map calculations have raised some concerns that the path of totality—where it’s possible to see the moon completely block out the sun—is slightly narrower than NASA calculated. That means some cities on the edge of the route that were expecting to experience a second or two of total darkness might be left out.” The calculations were done by John Irwin, whose revised map can be found here. This page has the technical details, while Jamie Carter explains the implications: if Irwin’s correct, we’re talking about a literal edge case of a few hundred metres. Go further into the path of to ..read more
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Paper Maps: New Business, Lost Loves
The Map Room
by Jonathan Crowe
1w ago
GIS analyst and cartographer Andrew Middleton moved across the country to become the new owner of the Map Center, a Rhode Island map store, after the previous owner announced that he was looking for someone to give the store away to. In an interview with GeoHipster’s Randal Hale, Andrew outlines what he sees as the state of the market for paper maps: the antique map business is pretty healthy; what he’s interested in is contemporary cartography. The bigger and more mysterious question for me is: Can I build a store off of something that focuses on contemporary cartography and do it in a physi ..read more
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Xkcd on Greenland’s Size
The Map Room
by Jonathan Crowe
1w ago
Randall Munroe, “Greenland Size”, xkcd, 25 March 2024. The 25 March 2024 xkcd honours Greenland’s place as a measure of cartographic distortion. It’s also, unexpectedly, a riff on the idea of the 1:1 scale map (cf. Borges), especially if you consult the comic’s alt text (“The Mercator projection drastically distorts the size of almost every area of land except a small ring around the North and South Poles.”). Previously: xkcd: The Greenland Special ..read more
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Adventures in Midcycle Redistricting
The Map Room
by Jonathan Crowe
1w ago
The U.S. congressional electoral map was redrawn after the 2020 census, but now parts are being redrawn again. ABC News has a page tracking developments in what they call midcycle redistricting. “More than a half-dozen states face the prospect of having to go through the redistricting process again, mostly due to federal and/or state litigation over racial or partisan gerrymandering concerns. Both Democrats and Republicans have the opportunity to flip seats in districts drawn more favorably than they were last cycle. For example, Democrats appear poised to pick up at least one seat in Alabama ..read more
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Flightradar24’s Map of GPS Interference
The Map Room
by Jonathan Crowe
2w ago
Another map of GPS interference, also based on GPS accuracy information reported by aircraft, this one from Flightradar24. Data updates every six hours. And once again high levels of interference are being reported from conflict zones: Ukraine and other foci of Russian mischief like the Baltics, plus Israel/Palestine, though to be honest I didn’t expect Myanmar. Data is archived, so you can look up previous dates (7 days free, more than that needs a site subscription). [Maps Mania] Previously: GPSJam Maps GPS Interference ..read more
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Cloud Cover Risk During the 2024 Solar Eclipse
The Map Room
by Jonathan Crowe
2w ago
Eclipses aren’t any fun if you travel to go see one and it’s cloudy. I’ve been debating with myself what to do about next month’s total solar eclipse: the path of totality is a couple hours’ drive away and therefore manageable, but from what I’ve gathered the odds of clear skies aren’t great. These odds are based not on weather forecasts—still too early for that—but on historical data. For example, NASA Earth Observatory’s map, above, shows the average of the past 20 years of cloud cover across North America’s eclipse track on the day of the eclipse (April 8). Want more detail? Like, a lot mo ..read more
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The ‘River Sins’ of Fantasy Maps
The Map Room
by Jonathan Crowe
1M ago
Author K. M. Alexander has some thoughts about rivers on fantasy maps, and the mistakes authors make with rivers when drawing those maps. When it comes to rivers, I’ve noticed that quite a few fantasy writers don’t understand the basics. While their intent is noble, I’ve seen plenty of examples of authors struggling with the underlying science of rivers and river systems. I sympathize. These are mistakes I have made myself. Early on, in one of my first projects, I made a mess with the waterways in my fantasy world. Mistakes like these—I like to jokingly call them “river sins”—might go unnotic ..read more
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All Mapped Out
The Map Room
by Jonathan Crowe
1M ago
Cultural geographer Mike Duggan’s 2017 Ph.D. thesis was an ethnographic study of digital mapping practices in everyday life. His new book, All Mapped Out (Reaktion, 1 Feb 20241) “is an exploration of how maps impact our lives on social and cultural levels.” He explains a bit about what this means in a recent article in The Conversation. Maps and what we do with them cannot be defined universally. Ideals and ideas about maps frequently clash with the reality of how and why maps are used. By bringing together my own research studying map users in London, and the work of others who have research ..read more
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One Map to Rule Them All: Fantasy Map Design Elements in ArcGIS Pro
The Map Room
by Jonathan Crowe
2M ago
John Nelson’s One Style to Rule Them All is an ArcGIS Pro map style that applies fantasy map design elements to real-world geographic data. It does something similar to his earlier (2018) map style, My Precious (described here) only differently and with fewer assets (and 1/60th the download size). John has examples and links to a four-part video tutorial at this ArcGIS Blog post. Previously: Maps Middle-earth Style: By Hand and by ArcGIS ..read more
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