Google’s Street View blurs people’s faces for privacy reasons. Licence plates, too. But a tweet by the Guardian’s David Shariatmadari reveals that Google’s algorithm sometimes extends privacy rights to cows.
A new digital elevation model of Alaska was released earlier this month. The result of a presidential directive to improve elevation maps of Alaska as a tool “to help to help communities understand and manage” the risks of climate change, the ArcticDEM project is a collaboration between the National Geospatial-Intelligence Agency (NGA), the National Science Foundation (NSF) and the University of Minnesota, among others. The unclassified data gives two-metre (or better) resolution across the state. Lower-resolution DEMs for the entire Arctic will follow next year.
Digital elevation data for Alaska had previously been poor; the National Geographic article leads with the point that Mars has better topographic maps than Alaska does. Most digital elevation data is collected by airplane—an impractical method in the far north; the ArcticDEM is based on stereo imagery from DigitalGlobe satellites. (As a comparison, the Shuttle Radar Topography Mission’s DEM resolution is 30 metres for the U.S., 90 metres elsewhere.)
A new book, Treasures from the Map Room, “explores the stories behind seventy-five extraordinary maps” held at the Bodleian Library, including the Gough Map, the Selden Map, and maps by J. R. R. Tolkien and C. S. Lewis. Edited by Debbie Hall, it’s out now in the U.K. and next month in North America. Buy at Amazon. [Tony Campbell]
Yesterday the European Space Agency released a sky map based on the first 14 months of data collected by the Gaia spacecraft, an astrometric observatory whose mission is to create a precise catalogue of astronomical objects’ position and relative motion. Several versions are available: annotated, unannotated, annotated with titles (above), unannotated with titles. The maps contain artifacts (curves and stripes) from Gaia’s scanning procedures, but they’ll improve as more data is added over the course of Gaia’s five-year mission.
The number of same-sex marriages in the United States is not directly tracked. But a new Treasury Department research paper has been able to come up with a count of same-sex marriages by looking at jointly filed tax returns; the New York Times story is accompanied by a nice interactive map of such marriages by zip code. [MAPS-L]
Two World Wars. The moon landings. The digital revolution. This exhibition of extraordinary maps looks at the important role they played during the 20th century. It sheds new light on familiar events and spans conflicts, creativity, the ocean floor and even outer space.
It includes exhibits ranging from the first map of the Hundred Acre Wood to secret spy maps, via the New York Subway. And, as technology advances further than we ever imagined possible, it questions what it really means to have your every move mapped.
The New York Times maps “the geography of American incarceration,” in an investigative piece that includes an interactive map showing prison admissions per county. They’ve diverged sharply in recent years: less populous, more rural, more conservative counties are doubling down on being tough on crime.
Just a decade ago, people in rural, suburban and urban areas were all about equally likely to go to prison. But now people in small counties are about 50 percent more likely to go to prison than people in populous counties.
They’re also more likely to get much stiffer sentences—something the map is not able to track.
Last year a Doctor Who episode turned the concept of the trap street—a fictitious map feature designed to catch copyright violations—on its head. In the series nine episode “Face the Raven,” the Doctor looks for a London street that cannot be found on maps.
THE DOCTOR: But if the stories are true though, there should be a street in one of these old maps that no longer exists in the real world.
CLARA: Like a trap street, only not.
THE DOCTOR: What did you say?
CLARA: A trap street. You know, when someone’s making a map—a, um, cartographer—uses a fake street throws it into the mix, names it after one of his kids or whatever, then, if the fake street—the trap street—ever shows up on someone else’s map they know their work’s been stolen. Clever, right?
THE DOCTOR: My God! A whole London street just up and disappeared and you lot assume it’s a copyright infringement.
Unlike trap streets, the street exists, and the reason it has disappeared has nothing to do with cartographic copyright. Finding the street takes some doing, as this clip the BBC has made available recently shows; unfortunately, it takes place immediately after the bit I quoted above.
Cóilín Parsons is the author of The Ordnance Survey and Modern Irish Literature (Oxford University Press, June 2016; Amazon, iBooks), which links the Ordnance Survey of Ireland to the origins of literary modernism in Ireland. Writing in The Irish Times, Parsons makes a larger argument about the cultural impact of the Irish survey, which resulted in large part from the survey’s precise mapping requirements and the need to hire non-cartographic scholars to get the job done—they were mapping aspects of Irish life that had not previously received official attention.
This unlikely assembly came about because the survey was instructed to make a map at a scale of six inches to one mile. The scale might seem unexceptional to anyone who grew up using the survey’s maps, but at the time it was nothing short of revolutionary—it called for enormous maps of frequently sparsely inhabited areas, and at a level of detail never before seen across such a vast expanse of land. How was the survey to gather the information to fill in such detailed maps? The answer was to task not only the engineers of the army, but also a crew of civilian workers under Petrie’s supervision, to both map the physical features of the landscape and also record every possible aspect of the landscape from its placenames (the initial justification for employing Irish language scholars) and archeology to its productive economy.
This interactive map shows the location of every single cargo ship over the course of 2012. Shipping routes (the Straits of Malacca look particularly bottlenecked) and materials shipped are available via the interface, and there’s a nice narrated tutorial explaining how the map works. Thanks to David Krathwohl for the tip. [Digg]
Abel Buell, A New and Correct Map of the United States of North America, 1784. On deposit to the Library of Congress from David M. Rubenstein.
Speaking of the Library of Congress, yesterday it opened a new exhibition both online and at the Library’s North Exhibition Gallery. Mapping a Growing Nation: From Independence to Statehood features the best known copy of Abel Buell’s 1784 New and Correct Map of the United States of North America—“which, among other things, has been recognized as the very first map of the newly independent United States to be compiled, printed, and published in America by an American. Additionally, the 1784 publication is the first map to be copyrighted in the United States, registered under the auspices of the Connecticut State Assembly.” Accompanying Buell’s map are other early maps—often the first maps—of each U.S. state; the maps will rotate on and off physical display for space reasons but will eventually all be featured online. [WMS]
The Library of Congress blog’s series on maps of imaginary places has now concluded; the final post is a look at what’s available on the subject from the Library of Congress itself. One interesting nugget of information: “The Library of Congress classification system has a range of call numbers reserved for maps of imaginary places: G9930-G9979.” How about that.
According to IMDb, it opens on 7 September in South Korea and on the 9th in the United States. (I’d check that page for other international release dates, if any.) [WMS]