Choropleth map of the 201 barangays (wards) of the city of Pasay in the Philippines showing the population change between the 2000 and 2024 censuses. The more positive the population change, the more dark blue the barangay gets while the more negative, the more dark red.

#30DayMapChallenge 🗺️ Day 3️⃣: Polygons

I went with a classic #choropleth map to keep things simple and this one shows the population change of the 201 barangays (kinda like wards) of the city of Pasay in the #Philippines 🇵🇭 between the 2000 and 2024 censuses. 🧵 1/2

en.wikipedia.org/wiki/Pasay

Exploropleth is an open-source, web-based geospatial visualization tool for interacting with a catalog of established data binning methods and exporting customized maps #choropleth

exploropleth.github.io

A choropleth density map depicting the number of licensed structural engineers in each state. California has the most at over 3000.

First up (for today), building a #choropleth of the active licensed #structuralengineers in the U.S. A linear hue scaling of # of SEs makes a pretty boring map. California dwarfs basically all other states. I'm thinking I might need to normalize the data with pop density.

#dataviz #aec #maps

Taking UCSF’s Health Atlas National | Stamen Stamen has been working with a team out of UCSF (University of San Francisco) Population Health and Health Equity to create and maintain their Health Atlas since 2019. You can read a bit about the ini...

Now on the blog: how we expanded UCSF’s Health Atlas from California (which we first collaborated on in 2019) to the entire US in 2024, including data and design updates across the entire tool.

Read now at stamen.com/taking-ucsfs...

#maps #basemaps #design #cartography #ucsf #health #choropleth

Multivariate map - Wikipedia

Check out Madrid, the Ruhr area, and Helsinki: Public transport in more densely populated areas seems to be negatively correlated with fatal traffic accidents. A #bivariate #choropleth map could make that visible.

cf. en.wikipedia.org/wiki/Multiva...

Your own previous version makes much more sense. This data really wants to be a #choropleth #heatmap or a #cartogram.

bsky.app/profile/lbar...

Fatal road accidents in EU regions
Data: @eu-eurostat.extwitter.link
Credits to @milos-makes-maps.bsky.social
#RStats #Portugal #europe #dataviz #ggplot2 #maps #gischat #geospacial #rspatial #Eurostat #choropleth

More here: ec.europa.eu/statist... #wind #renewable #energy #sustainability #germany #eurostat #statistics #choropleth #renewableenergy #cleanenergy #windfarm

Dupin's choropleth map of France showing literacy (well, proportion of conscripts who could write their name) by department. Darker shades = lower literacy.

Portrait of Baron Charles Dupin sitting at a desk, with his map on the table top underneath a book.

#TodayinHistory #dataviz #Onthisday #OTD 📊
📅Nov 30, 1826 Charles Dupin presented the first #choropleth #map, showing rates of literacy in France 🇫🇷

A key development in thematic cartography!
It showed that social ('moral') variables could be mapped & made subject to intelligent discussion/analysis.

One of my most challenging and exciting projects this year: over 400 charts and maps unpacking Romanian election data. From turnout to trends and hyper-local insights, it’s designed to be a tool for discovery!
👉https://alegeri.hotnews.ro/
#elections #maps #datavisualization #datadesign #choropleth

#30DayMapChallenge #Choropleth #DANA #Spain Revised version with more accurate wording. Impact of DANA on potential displacement from the usual residence in Spain. Interactive: www.ekotov.pro/2024-30DayMa... Code: github.com/e-kotov/2024...

Day 16: Choropleth - #30DayMapChallenge 🌐📊✨

#DataViz #EducationData #Choropleth #RStats #InternetAccess #EdTech #GIS #MapChallenge #Geospatial #DataScience #DatavizCommunity #EduEquity #DataVisualization #K12Education #EduSky🍎

details at: www.linkedin.com/posts/roland...

#30DayMapChallenge #Choropleth #DANA #Spain Impact of DANA on displacement from the usual residence in Spain. Interactive map: www.ekotov.pro/2024-30DayMa... | Code: github.com/e-kotov/2024... #rstats #spanishoddata (ropenspain.github.io/spanishoddata/) + #mapgl (by @kylewalker.bsky.social)

30DayMapChallenge J16 #Choropleth - Des cartes à lire
📍Les cartes IGN sont couvertes d'annotations (noms de lieux, pts cotés, etc.) placées avec soin pour garantir leur lisibilité.
Cette #carte montre leur densité par emprise sur les cartes IGN au 1:50k

✍️ @abigail2154.bsky.social
from X @IGNFrance

#30DayMapChallenge #boundaries ...I don't really do #choropleth maps so here's our work extending the wildness mapping to the new southern extension to the Cairngorms National Park