Piotr Tompalski

🌟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!

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

Enhanced forest inventories in Canada: implementation, status, and research needs Forest inventory practices in Canada have evolved over time with changes in forest management priorities, advances in technology, fluctuations in the marketplace, societal expectations, and generation...

📄 White et al. 2025 – Enhanced Forest Inventories in Canada: Implementation, Status, and Research Needs

🔗 Read here: cdnsciencepub.com/doi/10.1139/...

🌲 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 ⬆️).

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 🫶

SilviLaser 2025

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! 🙏

Great review paper on forest carbon + lidar!

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

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

For convenience, `lidRmetrics` also includes "metric sets"—predefined combinations of multiple metric groups that allow for comprehensive analysis with a single function call.

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

R code example with metrics_set3() function used to calculate pixel metrics.

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/

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

I was surprised it worked!

So far easier to use, but lubridate can do a lot more

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

not a mac user myself, but you could try asking JR directly (i.e. submitting an issue on github). JR usually replies quite quickly!

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"... 🤯

@mikewulder.bsky.social @txominhermos.bsky.social

option 1 for me as well. Fits well with other elements of the workflow.

NEW PAPER📢 Seasonal vegetation dynamics for phenotype using multispectral #drone imagery: differentiation, #ClimateAdaptation & hybridization of #InteriorSpruce

🔓#OpenAccess: doi.org/10.1016/j.rs...
✍️Grubinger, Coops, O'Neill, Degner, Wang, Waite, Riofrio, Koch
🙏 NSERC

#UBCforestry #remotesensing

In my work, I often develop many models and need to assess their accuracy. To make my life easier, I built scatter, a small R package for—well, scatterplots!

The plots:
- Include R², bias, RMSE
- Integrate with tidyverse pipe
- Use facets for grouped data

github.com/ptompalski/s...

#Rstats

hi @paulgaskincfs.bsky.social , just joined the platform, appreciate if you could add me to the group!

hellooooo!!!! re-joining the social media game! Here to share my research and probably overthink every post along the way