Jakub Nowosad

Attention #RSpatial community: NAD83 → NSRS and ETRS89 updates are hitting PROJ/GDAL/etc., potentially affecting sf, terra, gdalraster, vapour.

Roger Bivand is seeking feedback on his talk proposal.

Details:

#RStats #GISchat

Mar 13 at 12:00pmWeb
Show threadRoger BivandMar 13
@nowosad Thanks! This is a heads-up, really, but if some of us can talk in Warsaw at useR! - if it is actually a concern - that would be a useful opportunity. I've drafted an abstract on the repo: any comments welcome on https://github.com/rsbivand/new_ref_systems
Show threadMartin FleischmannMar 13
@rsbivand @nowosad when you say “prepare for incoming changes”, what exactly do you have in mind? What shall be done?
Show threadRoger BivandMar 13
@martinfleis Thanks for asking! In the R-sig-geo post (link Readme in githhub repo), I linked to a thread from the PROJ list, which I'll add here. As the EPSG database is updated, newer versions may offer different, possibly sub-optimal transformation pipelines between CRS, as reference frame definitions are added. See the PROJ case from earlier this week: https://lists.osgeo.org/pipermail/proj/2026-March/012026.html
[PROJ] New national ETRS89 realisations in EPSG messing things up in PROJ 9.8.0?

Show threadMartin FleischmannMar 13
@rsbivand thanks! I think I understand the issue. I still don't understand the subsequent steps in downstream packages. I am asking as this also affects behaviour of GeoPandas and it seems from you text that "we should do something”. Yet, I still don't really know what is that something, besides some temporary warning about potential change of behaviour.
Show threadOlivier LeroyMar 13

@martinfleis @rsbivand

For info this is the very US centric post from ESRI about it: https://www.esri.com/arcgis-blog/products/arcgis-pro/data-management/prepare-your-data-for-the-nsrs-2022

"just do 5 transformations"

Prepare your data for the National Spatial Reference System modernization of 2022 in the U.S. (ArcGIS Blog)

The new U.S. datums of 2022 will soon be released. This article covers what is coming and how you should prepare your data.

ArcGIS Blog
Show threadAnita Graser 🇪🇺🇺🇦🇬🇪Mar 14
@defuneste @martinfleis @rsbivand very comprehensive instructions 👌
Show threadFloris VanderhaegheMar 17
@underdarkGIS @defuneste @martinfleis @rsbivand this looks like another interestng source: https://www.xyht.com/cartography-2/brave-new-coordinates-what-nsrs-modernization-means-for-survey-and-gis-practice/
Brave New Coordinates: What NSRS Modernization Means for Survey and GIS Practice - xyHt

This entry is part 3 of 5 in the series Jan/Feb 2026NAD 83, NAVD 88 and “SPCS ’83” are finally giving way to a modern, GNSS- and gravity-based National Spatial Reference System. The technical pieces are arriving now. For surveyors and GIS professionals, the hard work will be managing the transition while keeping projects on […]

xyHt
Show threadJavier Jimenez ShawMar 20
@rsbivand @nowosad I don't know R, but if I can help with the NSRS part, let me know.
Show threadRoger BivandMar 20
@jjimenezshaw @nowosad Thanks, once there is any progress, your comments will be very welcome.