Piotr Tompalski
@piotrtompalski.bsky.social
320 followers 220 following 21 posts
Research scientist, Canadian Forest Service. #lidar #remotesensing and #forestry specialist, #R enthusiast. https://www.researchgate.net/profile/Piotr-Tompalski https://github.com/ptompalski 🌲🛰️🇵🇱🇨🇦
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piotrtompalski.bsky.social
It was wonderful to reconnect with old friends and colleagues, and just as exciting to make new ones.

A huge thank you to the organizers — what a well-organized and energizing conference!

#SilviLaser2025 #RemoteSensing #Forestry #LiDAR
piotrtompalski.bsky.social
Just wrapped up an inspiring week at SilviLaser 2025.
It was a real pleasure to attend, and an honor to deliver the keynote.

Conferences like Silvilaser remind me why I love working in forestry and remote sensing - not just for the science, but also for the people.
Reposted by Piotr Tompalski
tommaso-jucker.bsky.social
Only a pre-print for now, but after 4 years of hard work I couldn't resist sharing this!

The Global Canopy Atlas: analysis-ready maps of 3D structure for the world's woody ecosystems

📜: doi.org/10.1101/2025...

Huge team effort led by the brilliant Fabian Fischer!
Global distribution of forest landscapes covered by airborne LiDAR
Reposted by Piotr Tompalski
silvilaser2025.bsky.social
#Silvilaser2025 is coming up in 3 weeks!

We're getting excited so we wanted to remind you of our ✨3 keynote speakers✨

To read more about them visit 👉 www.silvilaser2025.com/speakers

Which talk are you most looking forward to?!

#remotesensing #laserscanning #forestmanagement #foresters
Banner showing Silvilaser 2025 logo as well as photos of the three keynote speakers
Reposted by Piotr Tompalski
silvilaser2025.bsky.social
🌟Meet #Silvilaser2025 Keynote Speakers!🌟

1/3: Dr Piotr Tompalski (@piotrtompalski.bsky.social) is a Research Scientist with the Canadian Forest Service using #LiDAR, #photogrammetry & #SatelliteData to enhance carbon monitoring & forest growth modeling 🌲📡

📆 Early bird registration opens May 1st!
piotrtompalski.bsky.social
We're also working to keep this information up to date on this website:

📍 Canada's Forest LiDAR Coverage➡️ ptompalski.github.io/CanadaForest...

#ForestScience #LiDAR #SustainableForestry #RemoteSensing #ForestManagement #CanadaForests
ALS data coverage in Canadian forests
ptompalski.github.io
piotrtompalski.bsky.social
🌲 Excited to share our latest work on Enhanced Forest Inventories (EFI) in Canada! 🌲

We take a close look at how EFI is being implemented across Canada's provinces & territories. We also summarize the extent of ALS acquired across Canada, with maps and tables (and an animation ⬆️).
Reposted by Piotr Tompalski
irssubc.bsky.social
Yesterday we celebrated the IRSS Twin Day! 👯‍♀️👯‍♂️

*10 YEARS* of capturing every time IRSS lab members dressed the same! (it happens more often than you'd think 😜)

Huge thanks to @piotrtompalski.bsky.social
for starting - and maintaining - this epic photo album throughout the years 🫶
Reposted by Piotr Tompalski
silvilaser2025.bsky.social
Hey there @bsky.app!

Please join us for #SilviLaser2025 for a great conference on cutting-edge technology in laser scanning and forestry 🛰️🌲

🚩 Quebec City
📅 Sept 29 - Oct 3, 2025
📃 Abstracts due Feb 28. 2025

Learn more at silvilaser2025.com! 🌍
Please like and share this with your networks! 🙏
SilviLaser 2025
silvilaser2025.com
piotrtompalski.bsky.social
Great review paper on forest carbon + lidar!
irssubc.bsky.social
New paper! 📣

Advances in #LaserScanning to Assess Carbon in #Forests: From Ground-Based to Space-Based Sensors
👉 see thread for more!

#OpenAccess🔓: doi.org/10.1007/s407...
✍️ Coops, Irwin, Seely & Hardy
🙏 #NSERC

@forestry.ubc.ca #RemoteSensing #ForestCarbon #Lidar #Drones #Salitte #Aircraft
Reposted by Piotr Tompalski
irssubc.bsky.social
New paper! 📣

Advances in #LaserScanning to Assess Carbon in #Forests: From Ground-Based to Space-Based Sensors
👉 see thread for more!

#OpenAccess🔓: doi.org/10.1007/s407...
✍️ Coops, Irwin, Seely & Hardy
🙏 #NSERC

@forestry.ubc.ca #RemoteSensing #ForestCarbon #Lidar #Drones #Salitte #Aircraft
piotrtompalski.bsky.social
If you'd like to learn more or give it a try, you can find it here: [ptompalski.github.io/lidRmetrics/](ptompalski.github.io/lidRmetrics/ "https://ptompalski.github.io/lidRmetrics/")

#Lidar #Forestry #RemoteSensing #RStats
Point cloud metrics for the lidR package.
Several pre-defined sets of point cloud metrics to use with the lidR package *_metric functions.
ptompalski.github.io
piotrtompalski.bsky.social
For convenience, `lidRmetrics` also includes "metric sets"—predefined combinations of multiple metric groups that allow for comprehensive analysis with a single function call.
piotrtompalski.bsky.social
The package organizes metrics into specific functions:

- `metrics_basic()` – general point cloud statistics
- `metrics_percentiles()` – height percentiles
- `metrics_percabove()` & `metrics_dispersion()` – assess vertical structure
- `metrics_echo()` & `metrics_echo2()` – return type proportions
piotrtompalski.bsky.social
If you're using the `lidR` package and looking to expand your point cloud analysis capabilities, the **lidRmetrics** package might be worth exploring. It offers a variety of additional metrics designed to provide a more detailed characterization of forest structure
ptompalski.github.io/lidRmetrics/
R code example with metrics_set3() function used to calculate pixel metrics.
Reposted by Piotr Tompalski
irssubc.bsky.social
NEW PAPER 📢 Detection of disturbances using Harmonized #Landsat #Sentinel2 time series

#OpenAccess🔓: doi.org/10.1016/j.is...
✍️ Brown, Coops, Mulverhill, Achim
💰 NSERC, #Silva21

#UBCForestry #remotesensing #forestdisturbances
piotrtompalski.bsky.social
I was surprised it worked!
piotrtompalski.bsky.social
So far easier to use, but lubridate can do a lot more
piotrtompalski.bsky.social
the {anytime} R package is my new favorite when it comes to converting text to dates. Super easy to use and works even if dates have some weird formatting!
eddelbuettel.github.io/anytime/

#R #Rstats
piotrtompalski.bsky.social
not a mac user myself, but you could try asking JR directly (i.e. submitting an issue on github). JR usually replies quite quickly!
piotrtompalski.bsky.social
For me some of the not-very-helpful error messages (especially for new users).
good example would be "object of type closure is not subsettable"... 🤯
piotrtompalski.bsky.social
option 1 for me as well. Fits well with other elements of the workflow.