#30DayMapChallenge Day 28: Chart or map? I confess—this was challenging and I'm not sure if it fits today's theme. But it's my first cartogram! Here's the global state of liberal democracy in 2022 where each country's size is distorted relative to its value of liberal democracy.
Day 28 - The 28th Map 🗺️ of #30DayMapChallenge
Is this a map or chart?
We will let you decide, but do not forget to search "undecempoint" or "undecipoint"
Who says maps have to be of the Earth? Today’s map is the night sky as it looks right about now (approximately midnight over Manila, #Philippines 🇵🇭) with the stars as our titular dots! 🌌🌟
(The full Moon 🌕 and Jupiter ♃ are actually both prominently visible too, but I didn’t want to add them to this map. Stars are the stars now!)
“An accessibility surface visualizes travel times to a given location for each cell within a raster grid. To compute this, I use layered isochrones from Mapbox along with the fasterize package in #rstats to convert the isochrones to a smooth surface.” - Kyle Walker
The image below shows drive-times in normal traffic to Nike headquarters in Beaverton, Oregon, visualized interactively with R and Leaflet.
Kyle's R code: https://github.com/walkerke/map-challenge-2023/blob/main/scripts/day-21-raster.R #RSpatial#GIS@rstats#30DayMapChallenge
#30DayMapChallenge Day 27: Dot. Yet another earthquake map but this time, I went bigger with South America. Over 96,000 earthquakes (> M2.5) between 1923 and 2023.
Day 27 "Dots". In the 27th Map 🗺️ of #30DayMapChallenge There are 175 world's #tripoints (where three countries meet), now you can see them in one single #map. Does your #country have it?
This map might not look as simple as you would expect given the theme, but I figured that #cartograms provide a minimal view of how “large” a set of regions are irrespective of their land area. For this map, we have a hexagonal (a la Day 9) cartogram of the number of councillors per electoral district of the House of Councillors, which is the upper chamber of #Japan’s 🇯🇵 National Diet. The 45 districts almost correspond with the 47 prefectures.
#30DayMapChallenge 🗺️ recap! Since I have completed 25 days already, which is a nice square number 🟦, what a better way to mark this with a square grid of the maps I have made so far?
It has definitely been a challenge but it was a fun experience and I learned a lot of new things and increased my cartography, data wrangling, coding, and graphic design skills! It’s also been a blast looking through other people’s submissions and learning about places, datasets, and tools.
Antarctica for day 2️⃣ 5️⃣ of #30DayMapChallenge : a fanciful conjecture based on NISDC bedrock data. Subsidiary title should read "nor isostatic rebound nor sea level rise".
I wonder if I can get away with making a map about Antarctica but without showing any part of it! 😉
I managed to do just that by showing how involved the countries of the world are in the coldest continent! (Again I used my favorite #CahillConcialdi map projection—any guesses as to what I’ll be doing for Day 30? 😂)
For Day 1 of #30DayMapChallenge, I mapped 9 of the schools for Black children in northern Delaware when Delaware--there were more than 80 throughout the state when the state enforced racial segregation in schools. #rstats
For Day 15 of #30DayMapChallenge I adapted a previous map to plot the roads in my old town of Iowa City, IA. Just so that I could see the grid layout that is bike friendly. I plotted all of the roads with the "highway" feature because it is tricky to find a ll the tags for basic streets. #rstats
For Day 16 of #30DayMapChallenge, I cranked out a map of the population in Australian states (territories?) in 2023. Really love how the Australian Bureau of Statistics makes shapefiles and data easy to find.
But I could not get my labels to work in this one....#rstats
I’ll attempt the #30DayMapChallenge this year! I plan to use it for the personal challenge of trying something—even if it’s a tiny something—I’ve rarely or never done before, be it a map style, a GIS function, or whatever else. Perhaps I’ll document those things at the end, but meanwhile…
Fell a few days behind on #30DayMapChallenge… here’s day 22, North is not always up. Recently I made a map of the 2024 eclipse oriented so that the path of totality is vertical for scrolling: https://andywoodruff.com/posts/2023/eclipse-2024/. So here’s a snippet of the same map oriented for the 2017 eclipse. (This did, at least, require re-rendering shaded relief with a different lighting direction, and moving a few labels.)