We expect maps to tell the truth; indeed we need them to on a fierce and primal level. “I believe cartography enjoys an enviable position of credibility and confidence among the people who see it. If you see it mapped, you believe,” wrote Charles Blow last fall; he was writing in response to Trump’s petty defacement of a hurricane forecast map with a marker. The reaction to Trump’s stunt, was, I thought, revealing. It’s part and parcel with what Matthew Edney refers to as the ideal of cartography: striving toward a universal, unbiased and perfect map.
Maps have to tell the truth. They simply have to. Maybe that’s why stories about mistakes on the map, and the havoc those mistakes cause, fascinate us so much. Which brings me to three books, all published for the first time in 2016, that talk about map errors of an older kind: islands and other features that appeared on maps, sometimes for centuries, that in the end turned out not to exist.
The country-level data is collected from WHO, while the data of each province in China is collected from multiple sources such as China’s NHC, Mapmiao and Baidu. Notably, we also refer to CDC to verify the virus spreading status in the U.S. To make a timely data and map updates, we collect the data every 4 hours, and verify the data quality per day. In addition, we plan to provide finer-scale data from China (the county level), U.S. (the state level) and Canada (the province level) in the next version.
The Map Books of 2020 page is now live. It lists all the books scheduled to come out this year—at least the ones I’m aware of. I’ll do my best to keep this page as up to date as possible. If there’s a book coming out in 2020 that should be on this page, let me know: I’m keen to find out about any and all books on cartography, maps and related subjects that are in the works.
Britain had the Ordnance Survey, France the Cassini family. Japan had Inō Tadataka (伊能 忠敬, 1745-1818), who over a series of expeditions in the early 19th century conducted a systematic survey of Japan using modern techniques. Writing for Nippon.com, Inō’s biographer, Hoshino Yoshihisa, writes a long introduction to Inō’s life and work that is well worth the read. [Tony Campbell]
For more on the history of Japanese cartography, see Cartographic Japan, a collection of academic essays edited by Kären Wigen, Sugimoto Fumiko and Cary Karacas that was published by the University of Chicago Press in 2016.
Simon Weckert created a virtual traffic jam in Berlin by pulling 99 used smartphones in a wagon: a large number of phones moving slowly looks like a traffic jam to Google Maps. “Through this activity, it is possible to turn a green street red which has an impact in the physical world by navigating cars on another route to avoid being stuck in traffic.”
Google’s statement to 9to5Google suggests that they’re taking Simon’s hack in stride: “Traffic data in Google Maps is refreshed continuously thanks to information from a variety of sources, including aggregated anonymized data from people who have location services turned on and contributions from the Google Maps community. We’ve launched the ability to distinguish between cars and motorcycles in several countries including India, Indonesia and Egypt, though we haven’t quite cracked traveling by wagon. We appreciate seeing creative uses of Google Maps like this as it helps us make maps work better over time.”
So people fed up with traffic being rerouted onto their residential streets could, conceivably, hack that traffic elsewhere—but not for much longer.
A new unified geologic map of the Moon, based on digital renovations that updated 1970s-era geologic maps to match more recent topographic and image data gathered by lunar orbiters, was released by the USGS last month. The map is “a seamless, globally consistent, 1:5,000,000-scale geologic map”; the paper version (25 MB JPEG) provides azimuthal projections beyond the 55th parallels and an equirectangular projection between the 57th parallels. [Geography Realm]
Matthew Panzarino, who broke the news in 2018 that Apple was building its own map data, said in a tweet that “Maps is probably the biggest software turnaround in Apple’s modern era—an interesting case study for a company that rarely needs turnaround efforts.”