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Reposted by Jakub Nowosad

Dewey Dunnington @paleolimbot.bsky.social · 11h

I'll write a post soon specifically on #rstats, but this week's post includes a full example of how SedonaDB can do this just as well in R as it can in Python!

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Dewey Dunnington @paleolimbot.bsky.social · 11h

This week's Apache Sedona drop: lazy/selective GeoParquet reads in SedonaDB, @duckdb.org, GDAL, and GeoPandas! This is how querying a GeoParquet file plonked on a web server can be queried locally (and why GeoParquet can be even faster locally!) dewey.dunnington.ca/post/2025/la... #gischat

Lazy GeoParquet reading in SedonaDB, DuckDB, GeoPandas, and GDAL | Dewey Dunnington

I’m an obvious fan of GeoParquet and SedonaDB and it should be no surprise that I worked (still working!) pretty hard making sure SedonaDB could take advantage of all GeoParquet had to offer.

dewey.dunnington.ca

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Jakub Nowosad @jakubnowosad.com · 1d

New R package: gridmappr by Roger Beecham

It automates creating small multiple gridmap layouts by optimally placing geographic points into grid cells (inspired by Jo Wood’s Observable notebooks).

👉 github.com/rogerbeecham...

#RStats #RSpatial #DataViz #GISchat

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Jakub Nowosad @jakubnowosad.com · 2d

🗺️ New blog post: introducing Spatial Data Visualization with tmap, a work-in-progress guide to thematic mapping in #RStats.

Learn about the book, its progress, and how to contribute: geocompx.org/post/2025/tm...

#DataViz #Mapping #tmap #geocompx

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Jakub Nowosad @jakubnowosad.com · 2d

🗺️ New blog post: introducing Spatial Data Visualization with tmap, a work-in-progress guide to thematic mapping in #RStats.

Learn about the book, its progress, and how to contribute: geocompx.org/post/2025/tm...

#DataViz #Mapping #tmap #geocompx

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Jakub Nowosad @jakubnowosad.com · 4d

Working with geospatial attribute data in Python? 📊🌍🐍

Chapter 2 of Geocomputation with Python covers subsetting, aggregation & joins for vector data, and subsetting + summarizing raster values.

👉 py.geocompx.org/02-attribute...

#GeoPython #Python #GISchat

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Kyle Walker @kylewalker.bsky.social · 6d

On the blog: how to map hundreds of thousands of US Census blocks performantly with R and PMTiles.

This is the first in a three-post series on production mapping workflows for big spatial datasets with PMTiles.

Read the post: walker-data.com/post...

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Jakub Nowosad @jakubnowosad.com · 8d

New blog post by Adam Steer: Identifying deformed sea ice using geomorphons ❄️🌊

Exploring sea ice as a landscape analysis problem with QGIS + GRASS GIS, using drone + lidar data.

👉 www.spatialised.net/identifying-...

#Geospatial #RStats #RSpatial #GISchat

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daniel:// stenberg:// @bagder.mastodon.social.ap.brid.gy · 9d

The European Open Source Awards marks a celebration and one of a kind recognition of open source excellence in Europe.

Open Call for Nominations: https://europeanopensource.academy/open-call-nominations-european-open-source-awards-2026

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Jakub Nowosad @jakubnowosad.com · 11d

Starting out with geographic data in Python? 🌍🐍

Chapter 1 of Geocomputation with Python introduces vector & raster models + core tools (geopandas, shapely, rasterio).

👉 py.geocompx.org/01-spatial-d...

#GeoPython #Python #GISchat

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Dewey Dunnington @paleolimbot.bsky.social · 13d

Interesting...I think of GeoParquet and GeoArrow as tech that allows more people to avoid the cloud (i.e., use your laptop to do things that everyone thought they needed "the cloud" for five years ago). When your 14 GB .fgb files become 2GB GeoParquets, you can fit a whole lot more of them locally!

mdsumner @mdsumner.bsky.social · 13d

"Do things like "GeoParquet" and "GeoArrow" really matter to practitioners who aren't working for a handful of hyper-scaling organizations?". 🤔 First I've heard my employer called that 😆

sgillies.net/2025/09/17/l...

Leaving the GDAL Project Steering Commitee

I've been on the Project Steering Committee (PSC) of the GDAL project for a few years now. It's a hugely significant software project, one that I'm very fond of, and I like to think that I've had an i

sgillies.net

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Chris Kenny, PhD @chriskenny.bsky.social · 13d

redistio now uses @kylewalker.bsky.social's mapgl for interactive redistricting map editing!

redistio is an #rstats package that uses Shiny to draw redistricting maps locally.

Unlike other district editors, this provides access to our simulation algorithms, interactively!

Short demo:

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Kyle Walker @kylewalker.bsky.social · 13d

Preview the 2.5 billion buildings from @overturemaps.bsky.social in a single line of R code?

Why not?

Check out the pmtiles package: github.com/walkerke/pmt...

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Stefanie Butland @stefaniebutland.bsky.social · 14d

Come work with me and the best team!! We work openly, together, with kindness. We care about onboarding, and have the best team culture I've ever experienced.

Openscapes @openscapes.bsky.social · 14d

📣 Come work @openscapes.bsky.social ! We're looking for a NASA Openscapes Team Member to improve access & use of NASA suborbital data thru reproducible notebook clinics. Apply by October 26, 2025. Start December 2025.

Details including pay rate: openscapes.org/connect#work...
Please share!

connect – Openscapes

openscapes.org

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Robin Lovelace @robinlovelace.bsky.social · 14d

Updates are underway in the {stats19} #rstats package, the quickest way to access large, high-quality collision datasets with geographical location and dozens of other variables at collision, vehicle, and casualty levels: new contributor (Blaise 🔥) + new data almost ready to launch 🚀

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Jakub Nowosad @jakubnowosad.com · 15d

New post by David O’Sullivan:

“Raster really is faster (and vaster), but vector just seems more corrector.”

Part 1A of a series revisiting ideas from Geographic Information Analysis: fractals, raster vs vector, and R code.

👉 dosull.github.io/posts/2025-0...

#Geospatial #RStats #RSpatial #GISchat

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Jakub Nowosad @jakubnowosad.com · 16d

I totally forgot: have you tried lwd.legend = tm_legend(reverse = TRUE)?

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Jakub Nowosad @jakubnowosad.com · 21d

Hi! 1. Yep -- you will need to be patient. The rest of the book will not be done shortly (there are some other priorities atm). 2. Your approach looks fine by me. If you have any suggestions on how to make it better -- please open a pull request in the tmap GitHub repo.

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Jakub Nowosad @jakubnowosad.com · 22d

🌍Exploring Sentinel-2 with the Copernicus Data Space Ecosystem (CDSE)?

Hugh Graham’s guide with vrtility in #rstats. Includes authentication & query of imagery and building cloud-free composites.

permian-global-research.github.io/vrtility/art...

#RSpatial #RemoteSensing #EarthObservation #GIS

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Edzer Pebesma @edzer.mastodon.social.ap.brid.gy · 27d

Spatial Data Science across languages now has a website: https://spatial-data-science.github.io/ Thanks @martinfleis !

Spatial Data Science across Languages

spatial-data-science.github.io

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Robin Lovelace @robinlovelace.bsky.social · 29d

In preparation for the Data Science for Transport Planning (DSTP) course I'm teaching this week, I've updated the geocompx docker images to make them smaller, faster, and more flexible. Happy with the results: a portable multilingual environment for reproducible (transport) #DataScience

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Tom Hengl @tomhengl.bsky.social · Sep 15

Had a privilege and pleasure to teach terra pkg (created by @roberthijmans.bsky.social et al.) and spatial sampling with R together with Alexandre Wadoux at the #EOSummerSchool2025 at WICC. You can follow the terra tutorial from here: differ.blog/p/processing...
📹: youtu.be/q9sQkg7BeAc?...

Processing large rasters using terra package for R: combining tiling and time-series modeling

differ.blog

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Jakub Nowosad @jakubnowosad.com · Sep 15

This week (Sep 15–19) I’m attending the #ECMLPKDD2025 conf in Porto!

Happy to chat about the intersection of machine learning and spatial data -- reach out if you’d like to meet. 🌍

#ECMLPKDD2025 #MachineLearning #Geospatial

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Jakub Nowosad @jakubnowosad.com · Sep 14

🚀 Book in progress: Spatial Data Visualization with tmap

A guide to creating thematic maps in R with the tmap package.
Covers everything from loading data to interactive and animated maps, with reproducible code.

Read online: tmap.geocompx.org

#rstats #rspatial #geocompx #gischat #maps

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Jakub Nowosad @jakubnowosad.com · Sep 10

📢 Materials from the OpenGeoHub Summer School 2025 (“Data Science for Earth Observation”) by Krzysztof Dyba are now online.

Discuss how to access, process, and analyze satellite data with #RStats.

👉 github.com/kadyb/OGH2025

#RSpatial #RemoteSensing #GISchat

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