Tag Archives: maps

Europe, the Baltics, the Caucasus, and NATO geography quiz

There are lots of point-and-click geography quizzes online. I tried this one and did horribly at 57%. If I manage to find the time, I might take it once a day until I actually know where some of the places I am hearing in the news are. That still won’t help me much when the media uses terms like “the Baltic States” and “the Caucases” (being “Caucasian” doesn’t help me with that last one. I also looked up the map of who is in NATO at this point and what surprised both at some countries that are and some that aren’t.

According to Wikipedia:

The Baltic states is a modern unofficial geopolitical term, typically used to group three so-called Baltic countriesEstoniaLatvia and Lithuania. All three countries are members of NATO, the European Union, the eurozone, and the OECD. The three sovereign states on the eastern coast of the Baltic Sea are sometimes referred to as the “Baltic nations”, less often and in historical circumstances also as the “Baltic republics”, the “Baltic lands”, or simply the Baltics.

Wikipedia

The Caucasus (/ˈkɔːkəsəs/), or Caucasia[3][4] (/kɔːˈkeɪʒə/), is a region between the Black Sea and the Caspian Sea, mainly occupied by ArmeniaAzerbaijanGeorgia, and parts of Southern Russia. The Caucasus Mountains, including the Greater Caucasus range, have historically been considered a natural barrier between Eastern Europe and Western Asia.[5]

Wikipedia

The NATO members are:

  • ALBANIA (2009)
  • BELGIUM (1949)
  • BULGARIA (2004)
  • CANADA (1949)
  • CROATIA (2009)
  • CZECH REPUBLIC (1999)
  • DENMARK (1949)
  • ESTONIA (2004)
  • FRANCE (1949)
  • GERMANY (1955)
  • GREECE (1952)
  • HUNGARY (1999)
  • ICELAND (1949)
  • ITALY (1949)
  • LATVIA (2004)
  • LITHUANIA (2004)
  • LUXEMBOURG (1949)
  • MONTENEGRO (2017)
  • NETHERLANDS (1949)
  • NORTH MACEDONIA (2020)
  • NORWAY (1949)
  • POLAND (1999)
  • PORTUGAL (1949)
  • ROMANIA (2004)
  • SLOVAKIA (2004)
  • SLOVENIA (2004)
  • SPAIN (1982)
  • TURKEY (1952)
  • THE UNITED KINGDOM (1949)
  • THE UNITED STATES (1949)

visualizing tunnel progress

Metro Los Angeles has put together kind of a nice graphic to communicate the status of a tunnel construction project. It’s cartoonish, and yet contains a surprisingly large amount of scientific and engineering information.

 

flow maps

Here is an interesting paper proposing design principles for flow maps, which “visualize movement using a static image and demonstrate not only which places have been affected by movement but also the direction and volume of movement.”

Design principles for origin-destination flow maps

Origin-destination flow maps are often difficult to read due to overlapping flows. Cartographers have developed design principles in manual cartography for origin-destination flow maps to reduce overlaps and increase readability. These design principles are identified and documented using a quantitative content analysis of 97 geographic origin-destination flow maps without branching or merging flows. The effectiveness of selected design principles is verified in a user study with 215 participants. Findings show that (a) curved flows are more effective than straight
flows, (b) arrows indicate direction more effectively than tapered line widths, and (c) flows between nodes are more effective than flows between areas. These findings, combined with results from user studies in graph drawing, conclude that effective and efficient origin-destination flow maps should be designed according to the following design principles: overlaps between flows are minimized; symmetric flows are preferred to asymmetric flows; longer flows are curved
more than shorter or peripheral flows; acute angles between crossing flows are avoided; sharp bends in flow lines are avoided; flows do not pass under unconnected nodes; flows are radially distributed around nodes; flow direction is indicated with arrowheads; and flow width is scaled with represented quantity.

cool live weather sites

This week I discovered several websites that show you cool snapshots of current weather. My colleagues are laughing at me because apparently I am the last to know. I think this is one example of how a complex visualization can sometimes be much better than a simpler one. Compared to the typical “synoptic” maps of warm and cold fronts, which are confusing to most people, this is something I think even an elementary school student could begin to grasp.

https://earth.nullschool.net/

 https://www.windytv.com/?pressure,38.836,-77.338,4

 https://www.ventusky.com/?p=30.2;-78.2;4&l=pressure

Weather Forecast MapsPrecipitation 3 hours, 2016/10/14 11:00 PM (UTC−04:00), © VentuSky.com

new technology for mapping street trees

Philadelphia Parks and Rec has used a Google Street View-like technology to map street trees.

CycloMedia’s tool is “like Google Maps on steroids,” said Parks and Rec’s lead GIS Specialist Nora Dougherty, who spearheaded the project. It is a way of capturing all kinds of high-definition imagery that is geolocated, which means it can be used for a variety of projects. The tool is easy enough for non-experts to use, according to Mark Wheeler, Chief Geographic Information Officer for the Office of Innovation and Technology, plus the custom-captured imagery can be fully integrated with the city’s existing GIS software. CycloMedia’s tool captures an unprecedented level of detail in the images it records: You’re able to see features like address numbers and even deterioration of rooflines. Plus, every image is date and time stamped, so the user can verify that the images are consistent. This tool is also highly accurate for measuring distances and heights.

After all the streets in Philadelphia were captured using the technology, GIS technicians Tom McKeon and Stuart Olshevski virtually traveled down every street and dropped pins marking the location of each tree. The result is an inventory of nearly 112,000 street trees with geolocation data, which means street trees are now represented in a new layer of geographic information that can be mapped and analyzed. (Forest trees make up the other thousands of trees in Philadelphia, but it’s nearly impossible to accurately inventory them.) Information about the health and species of street trees is also being recorded…

The street tree inventory will be available on August 5 on Open Data Philly, and in an interactive map will be on the city’s website. Citizens can use that information to create their own maps and take action to monitor the trees in their neighborhood.