Mapping Tornado Migration

John Nelson’s map of tornado migration in the United States, showing the seasonal variations in tornado occurrence, is a master class in data visualization and design—in deciding on the right way to present geographic information. The map combines three styles—impressionistic choropleth, weighted mean centre movement diagram, and small multiple—to present month-by-month information all at once; in the accompanying text (also here), Nelson discusses some of the alternatives he could have chosen instead. And in a separate post he talks about how he made the map. [Esri]

Previously: Mapping Tornado Tracks.

An 18th-Century Manuscript Map of the St. Lawrence River

Jean-Nicolas Bellin, Carte du cours du fleuve St. Laurent, ca. 1733. Manuscript map, 3 sheets, 44.8×61.1 cm. Bibliothèque et Archives nationales du Québec.

Another one in French. Last month, Radio-Canada had the story of a manuscript map of the St. Lawrence River that was recently acquired by the Bibliothèque et Archives nationales du Québec. The 18th-century map takes three sheets to trace the course of the St. Lawrence from the Ottawa River to Anticosti Island, and the BANQ’s map librarians have concluded that it’s the work of French philosophe and cartographer Jean-Nicolas Bellin. The map can be viewed on the BANQ’s website, which those who can’t read French should be able to manage. [WMS]

National Geographic Teases Its Map Archive on Social Media

National Geographic has digitized its entire map archive—every map the magazine has published since 1888, more than six thousand of them—but you won’t be able to browse through it. (Subscribers can access the maps through their digital archive by consulting the issues they first appeared, but, again, no public access to the database.) What they’re doing instead is posting them through social media channels, forming the basis of “Map of the Day” posts on Facebook, Instagram and Twitter. Can’t help but feel they’re teasing us a bit.

Mercator Globes at the University of Lausanne

The University of Lausanne has come across a pair of globes—one celestial, one terrestrial—made by Mercator in the 16th century. Mercator apparently had a reputation as a globemaker, and a number of his globes are still in existence today. But “not particularly rare” is not the same as “not particularly  interesting,” and the globes, which first turned up on campus in 2004, are now the subject of an exhibition at the Espace Arlaud in Lausanne, which runs until 15 July, and an extensive and detailed website that talks about the globes and how they were discovered and authenticated. Digital versions of each globe have also been produced: here’s the terrestrial globe; here’s the celestial globe.

All of this, by the way, is in French. If reading French is not your thing, the Harvard Map Collection also has a pair of Mercator globes, which you can view via their (rather dated) website.

Mapping the 2018 Kīlauea Eruption

Last week new lava vents opened in the Kīlauea volcano’s eastern rift zone, with fissures destroying a number of homes in the Leilani Estates subdivision of the island of Hawai‘i’s Puna District. Here are some maps.

USGS

The Washington Post’s coverage is typically first rate, its maps providing both detailed coverage and context: start there. More detailed maps come from the Kīlauea section of the USGS’s Volcano Hazards Program website, with fissure maps of the entire eastern rift zone (see above) and thermal maps of the Leilani Estates fissures receiving daily or near-daily updates.

The eruption was preceded and accompanied by a number of earthquakes; NOAA has created an animated map showing the incidence, magnitude and depth of the earthquakes that took place during the week of the eruption.

Map of the Late Jurassic World

Paleoartist Julio Lacerda has produced a pictorial map of the world as it was during the Late Jurassic (163½ to 145 million years ago). Available via Studio 252MYA, which sells paleontology-related swag (we have their Lambeosaurus pillow—it was a housewarming gift), it comes as either as a poster or as a framed print, and in two sizes; prices range from $26.50 to $142. Julio is threatening to do maps of other periods, which I hope he follows through on.

Google Maps Announcements at I/O

Google unveiled its future plans for Google Maps at its I/O conference yesterday. They include an augmented reality mode that combines Google’s Street View and map data with the view through your phone’s camera and “assistive and personal” features that add some artificial intelligence to recommendations and reviews. The social and recommendation features are coming this summer; no word on when or if we’ll see the AR mode. AppleInsider, Google Blog, Engadget, The Verge.

In other Google Maps news from late March: Google announced that 39 new languages were being added to Google Maps; and restaurant wait times came to the iOS version of Google Maps.

The Urbano Monte Map in 20 Different Projections

More on Urbano Monte’s 1587 world map, which, you may remember, the Rumsey Collection digitally assembled into a single map from 60 manuscript pages. Now Visionscarto has taken it a step further, with a web tool that reprojects a map into other projections, taking the map’s original polar azimuthal equidistant projection and transmogrifying it into 20 other projections. Yes, sure, the Mercator is one of them, but so are the Goode Homolosine, the Hammer—even the Dymaxion. The tool is available on both the Visioncarto and Rumsey Collection websites. [David Rumsey]

Previously: Urbano Monte’s 1587 World Map, Digitally AssembledVan Duzer Assesses Urbano Monte’s Work.

ISHMap Symposium in Portland, Maine

Registration is now open for the 2018 Symposium of the International Society for the History of the Map. It takes place from 21 to 23 June 2018 at the Osher Map Library in Portland, Maine, and it’s free to attend. (Like many academic events, registration is so that they have a number to plan for.) Here’s the preliminary program.

ISHMap is still in the middle of its constitutional crisis, which is affecting the organization of this conference; here are the unpleasant details from the perspective of the Edney faction, which is running the conference.

Previously: What the Hell Is Going On with the International Society for the History of the Map?

Exhibitions on Maps of the American West

Mapping Texas: From Frontier to the Lone Star State, which opened on 20 April at the George H. W. Bush Presidential Library and Museum in College Station, Texas, “traces the cartographic history of Texas from the sixteenth to the nineteenth centuries” through a small (26 item) collection of maps and documents, all of which are reproductions. Press release. [WMS]

At the Grolier Club in New York, Westward the Course of Empire: Exploring and Settling the American West, 1803-1869, an exhibition of maps from the collection of J. C. McElveen Jr. 50 maps on display, including Lewis and Clark’s map of the Northwest. Press release. [WMS]

European Electrical Grid

Here’s an interactive map of the European electrical grid from ENTSO-E, the European Network of Transmission System Operators for Electricity.

This map is a comprehensive illustration of the transmission system network operated by members of the European Network of Transmission System Operators.

In general the map shows all transmission lines designed for 220kV voltage and higher and generation stations with net generation capacity of more than 100MW.

Maps of the grid are also available as downloadable PDFs. [Maps on the Web]

New Zealand Launches Campaign to Get Itself Back on World Maps

Frustrated by being left off world maps, New Zealand has launched a tongue-in-cheek campaign called #getNZonthemap, the highlight of which is a three-minute video featuring New Zealand prime minister Jacinda Ardern and actor Rhys Darby, who goes full conspiracy theory in the clip. Fun all round. See the video on Facebook or Vimeo.

Previously: Maps Without New Zealand.

Map Dealer Carole Spack Profiled

Last month the MetroWest Daily News profiled Framington, MA map dealer Carole Spack of Original Antique Maps, whose path to the business sounds rather familiar: “Six years ago, she bought several 150-year-old maps of Worcester County showing towns that were later submerged when the area was flooded to create the Quabbin Reservoir, where she often hikes. Intrigued by their detailed evocation of a vanished time, Spack has since acquired 2,000 rare maps ranging from Colonial America to rural China all the way to hand-colored engravings of the ‘Geography of the Heavens’ by an obscure early-19th century astronomer.” [WMS]

Too Né’s Map for Lewis and Clark

A map drawn by an Indigenous guide for Lewis and Clark, recently discovered in the Bibliothèque Nationale de France, is the subject of an entire issue of the Lewis and Clark Trail Heritage Foundation’s journal, We Proceeded On. (The issue is not available online.) The map was drawn some time in 1805 by Too Né, a member of the Arikara tribe who in 1804 travelled with the Lewis and Clark expedition in what is now North Dakota, and shows the extent of the territory known to the Arikara at that time.

Christopher Steinke, now a history professor at the University of Nebraska at Kearney, encountered the map during his graduate studies; he wrote it up for the October 2014 issue of the William and Mary Quarterly, which also published an interactive version of the map on its website. (Here’s a link to Steinke’s article.)

Indigenous historians and William and Clark scholars don’t appear to talk to one another very much, which is why it’s taken until now for the latter to get so excited about the map Steinke discovered—which in my view is much more interesting and significant as an example of Indigenous mapmaking than it is as a piece of Lewis and Clark lore.

Here’s the press release from the Foundation, and here’s We Proceeded On editor Clay Jenkinson on what the map means for “Lewis and Clark obsessives.” [Tony Campbell/WMS]

Before Beck: The Prior Art of Diagrammatic Transit Maps

George Dow, “Great Northern Suburban Lines Route Diagram,” 1929.

Harry Beck may have created the iconic Tube map, which substituted a schematic diagram of the network for a geographically accurate map, but he didn’t invent the diagrammatic transit map. Alberto Cairo points to a number of pieces that explore examples of diagrammatic maps that were contemporaneous with or earlier than Beck’s work: Asaf Degani’s article in Ergonomics in Design points to the influence of designer F. H. Stingemore (see p. 12); Douglas Rose’s online essay comparing Beck with George Dow; and there’s a 2005 book by Andrew Dow (George’s son), Telling the Passenger Where to Get Off: George Dow and the Evolution of the Railway Diagrammatic Map. None of which is meant to diminish Beck’s achievement (I think), but serves to remind us that no innovation ever occurs in a vacuum. [Kenneth Field]