Geological map of Aso Volcano in Japan My knowledge on geology is probably layman level (got a B grade in an intro earth science course during undergraduate), but geological maps still fascinate me so much 🔗 www.gsj.jp/Map/EN/volca...

No idea why, but I love the greenish pale blue color of the palette in this choropleth map from The New York Times so much 🔗 www.nytimes.com/interactive/...

Happy New Year everyone! 🎆✌️ Was reading articles about the first sunrise of Japan (初日の出) and fell down a rabbit hole researching sunrise times on January 1 in cities across Asia and turned it into #MapInProgress

#30DayMapChallenge Day 29 - Raster Daytime/Nighttime temperature difference in Australia, Jan 2025 Wanted to map something about the country after my trip last month, and land surface temperature is always a good starting point for exploring a place you don't know much about

Aerial view of Taipei and Taichung from the flight I took back to Hong Kong a few days ago

#30DayMapChallenge Day 14 - OpenStreetMap Comparing peaks in Hong Kong based on crowdsourced OSM data vs. official government data We don’t have a strict definition of when the top of a hill should be considered a peak anyway ¯\_(ツ)_/¯

Posting again after a 2-week social media break. Just returned from a holiday in Sydney and Melbourne last week. Great weather, great cities, great national parks, great food. First time in Australia and will definitely come back.

Hi all urbanists here: I will be visiting Australia (Sydney and Melbourne) shortly, are there any transport planning / active travel / architecture / urban planning projects you'd recommend for a site visit?

See my commentary in @nytimes.com in re climatic & non-climatic factors pushing down home prices (always excellent work of @benkeys.bsky.social & P. Mulder) Amazing to see how far prices have tanked in Nola. Good News: homes w/ Fortified Roofs are holding their value. www.nytimes.com/interactive/...

#30DayMapChallenge Day 19 - Projections 19 projected coordinate systems of Japan (JGD2011 Japan plane rectangular CS, I to XIX) shown together, with Tokyo being the centre point Don’t ask me what does this map means, I also have no idea what I’m doing

#30DayMapChallenge Day 17 - A new tool Testing out the {mapgl} package in #RStats with a zoom-in animation on Shibuya station, Tokyo The highlighted zones show 10-minute walking isochrones from each Yamanote Line station made for the previous map

#30DayMapChallenge Day 13 - 10 minute map Reachable areas within a 10-minute walk / 10-min isochrones of Yamanote Line (山手線) stations And yes, the map took much longer than 10 mins to make, sorry not sorry

#30DayMapChallenge Day 11 - Minimal Map Contour map of Antarctica

#30DayMapChallenge Day 8 - Urban Betweenness centrality of the pedestrian network within 2 km of selected Taiwan's train Stations (Taipei, Taichung, Kaohsiung) Warming up with OSMnx again

#30DayMapChallenge Day 6 - Dimensions Pseudo-3D / 2.5D “axonometric” site plans of several districts in Hong Kong (Wan Chai, Kwun Tong, Tsuen Wan)

#30DayMapChallenge Day 3 - Polygons Land use distribution of Mong Kok, Hong Kong Classified into 6 major categories: built structure, open space, carriageway, footway, alleyway, others

#30DayMapChallenge Day 2 - Lines #popelevation #joyplot of the UK

#30DayMapChallenge Day 1 - Points Elevation of populated places in the Greater Tokyo Area

*Some ffmpeg command testing*

#MapsInTheWild Axonometric map of the Shimane Peninsula at the visitor centre of Hinomisaki Lighthouse Stunning greenish hillshades and subtle ocean depth bluish gradients 🌊⛰️🗾

Back to a #QGIS #cartography project of mapping land use distribution in Mong Kok, Hong Kong by breaking down land into 6 key categories. Together with small multiples showing area of: built structure, carriageway, footway, back-lane, open space, and others

#MapsInTheWild Topography of Izu Pensisula with illustrations of plate tectonics of the area in Mishima, Shizuoka 🌋🗻 Brings me back the vibes of old high school geography textbook

Release of QGIS 4 is undoubtedly exciting news - I still remember the huge UI/UX leap when upgrading from QGIS v2 to v3 on my Mac somewhere in 2019 🚀 #gischat blog.qgis.org/2025/04/17/q...

Working on bus route data and got distracted into playing with line symbology again #MapInProgress

#MapsInTheWild a detailed illustration of Mount Fuji’s surrounding areas 🗻 Found this map at Mishima Taisha Shrine. The deeper you explore the map, the more intricate details you could uncover

It's the equinox today, here is an animation showing the path of the sun and daylength as the year progresses #dataviz

Asked Cursor with Claude 3.7 to give my #RStats shiny app a facelift by switching {shinydashboard} to {bslib} Spent an extra day to fix the broken bits, tweak the flows and polish the UI - but it’s still slick that I even have no idea where to start without Claude

Finally closing my 2024 #30DayMapChallenge! Wrote a blog summarising what I learned, the behind-the-scenes challenges faced, and the fun I had creating maps last Nov. Check the blog and maps out here: 🗺️🔗 mappyurbanist.com/blog/2025-02... #gischat

#MapsInTheWild a giant map of Yokohama on Yokohama Landmark Tower’s observation deck An enormous map spreading out the floor is always a cool thing to me

Calling all map/urban/railway nerds to check out this website visualising railway accessibility across 250 cities around the globe by Aniket Kali and @jamaps.bsky.social - stunning #cartography and #dataviz 🔗 schoolofcities.github.io/rail-transit... #gischat

#30DayMapChallenge Day 16 - Choropleth Interactive map of median household income distribution in Hong Kong, made with #RStats Challenging myself to create a non-static and non-QGIS map, despite a late submission 🤐 #RSpatial

The completed map: Building age distribution around three selected Hong Kong MTR stations Left one shows total building count, right one displays buildings 50+ years old 🏙️🗺️

#MapsInTheWild 6 masterplans of Shanghai, from 1930 to 2017, in Shanghai Urban Planning Exhibition Center

First visit to Shanghai on the weekend - Taking photos of the station and tube map is a must-do for map nerds and railway nerds

#MapsInTheWild two hostels I stayed in Kyoto last Nov. Both have a gigantic city map hung near reception. Comparing the differences of their approaches to map the town and show the tourist spots would be a great cartography article

#MapInProgress (and a building age analysis article in progress)

#30DayMapChallenge Day 11 - Arctic Populated Places in the Arctic Circle Stumbled across Rovaniemi (home of Santa Claus Village) when doing some Christmas research, and ended up in the rabbit hole of exploring towns in the Arctic Circle Mappy Christmas to you all also! 🎄🎅

#30DayMapChallenge Day 25 - Heat Nighttime land surface temperature anomaly in Japan, August 2024 (compared to 2019-23 average August temperature) It was not a hot summer, but a *scorching* hot summer in Tokyo

#30DayMapChallenge Day 22 - 2 colours Growth / Decline of population from 2023 to 2027 in Hong Kong, by Tertiary Planning Unit (TPU)

#30DayMapChallenge Day 21 - Conflicts Overlapped 5-min service area of two major convenience store brands (7-Eleven & Circle K) in Central, Hong Kong Creating some spin-offs from the cvs accessibility series I have been working on

#30DayMapChallenge Day 18 - 3D Pseudo-3D “axonometric” site plan of Tsim Sha Tsui, Hong Kong

#30DayMapChallenge Day 4 - Hexagons Traffic collisions involving pedestrains in Hong Kong, 2018 - 2023 Though I’ve worked substantially with traffic collisions data, my focus has typically been on data analysis rather than cartography

#30DayMapChallenge Day 3 - Polygons Age distribution of buildings in Mong Kok, Hong Kong 🏙️ Also a small experiment on the dark theme basemap

#30DayMapChallenge Day 1 - Points Rainfall in Japan, Aug 2024 ☔️ Special thanks to MIERUNE for developing the JAXA Earth API QGIS plugin

Back in my student days, the urban design class taught a trick of adding “fake shadows” into maps quickly in Photoshop by: 1. Duplicate the building polygons 2. Offset it by a tiny distance 3. Change it to black & put it behind Same technique can be used in QGIS too #gischat

#MapInProgress #gischat

Some tests with inverted polygon and drop shadow effects for highlighting area of interest

Searching for the old good Twitter vibes