@openforest4d.org
Advancing the monitoring and management of global forest ecosystems. The NSF funded OpenForest4D project is a joint collaboration between UC San Diego, University of Florida and Arizona State University. www.openforest4d.org
Canopy Height Model
CHM with forest canopy gaps detected
Identifying #forest canopy gaps is important for understanding forest development & biological diversity. New R notebook outlines a workflow to detect canopy gaps from Canopy Height Models derived from ALS #lidar data. Available at:
github.com/OpenForest4D...
#RemoteSensing #Forestry #GoogleColab
The Shrubwise Data Challenge is live on the Wildfire Commons! We're calling on students, data enthusiasts, and innovators to help develop new approaches for predicting shrub distribution. Register by February 20 with your team for priority support: www.wildfirecommons.org/shrubwise-da...
🌱 Upcoming Workshop: ICESat2VegR: An R Package for Accessing, Handling, and Processing ICESat2 ATL08 and ATL03 Data 🌱
📅 February 23, 2026
⏰ Time: 1:00 PM – 6:00 PM (EST)
🔗https://event.fourwaves.com/forestsatworkshopseries/pages
How can lidar track a forest's recovery after a fire? 🌲🔥
In this study of the #Kaibab National Forest, researchers used multi-temporal #lidar data to map forest structure and canopy changes over time.
Explore the interactive map here:
of4d.sdsc.edu/usecases/kai... #RemoteSensing #Wildfire
Banner reading “Seeking New OpenTopography Advisory Committee Members” over a colorful REM showing a winding river, with the OpenTopography logo in the corner.
We're recruiting new members to serve on OpenTopography's advisory committees! These committees represent OT's users and ensure that activities are aligned with the needs and initiatives of the scientific and educational communities.
Learn more & apply: opentopography.org/news/AC_nomi...
🌱 Upcoming Workshop: Wall-to-wall forest biomass estimation using Google Earth Engine 🌱
Instructor: Dr. Cesar Alvites - University of Florida
📅 January 14, 2026
⏰ Time: 9:00 AM – 2:00 PM (EST)
🔗https://event.fourwaves.com/forestsatworkshopseries
Event flyer for the San Diego Supercomputer Center Women in High Performance Computing Professional Speaker Series featuring Dr. Chelsea Scott and Dr. Cassandra Brigham, titled “Topographic change with OpenTopography,” with date Wednesday, February 25, 2026, 1:00–2:00 pm PST, over a shaded relief topography background.
Please join OpenTopo's Chelsea Scott & Cassandra Brigham for a WHPC@SDSC Professional Speaker Series talk.
Topographic change with OpenTopography: Adventures in cloud computing, spatial uncertainty, and impactful applications
Feb. 25, 2026 at 1–2 pm PT
Register: www.sdsc.edu/events/20260...
Monitoring forest structure change using multi-temporal ALS workflows in OpenForest4D
Join us at our #AGU25 poster to discover how we harnesses airborne & satellite #lidar data using advanced workflows to uncover powerful insights on forest structure, biomass, and how landscapes change over time. agu.confex.com/agu/agu25/me...
#OpenScience #WildfireRecovery #EcosystemChange #RStats
OpenForest4D-GEE Mapper - Google Earth Engine web app for forest structure mapping. Thur 18th Dec 2025 2:15pm. Hall EFG
Stop by our #AGU25 poster-showcasing our #GoogleEarthEngine app that fuses NASA ICESat‑2 & GEDI #lidar with Sentinel‑1 SAR & Landsat‑8 using machine learning to map 30 m canopy height & biomass, achieving ~6 m RMSE in a hurricane‑impacted Florida case study. agu.confex.com/agu/agu25/me... #ICESat2
Discover how #lidar reveals wildfire impacts & landscape recovery. Case studies in Arizona & Los Angeles show how 3D data helps us quantify canopy loss, hazards, & restoration after major fires. #LAfires #Kaibab
Watch the new #wildfire science video: www.youtube.com/watch?v=7Joz...
Canopy Height Model
+ representing tree tops on smoothed CHM
Crown Max Height
Generate #forestry products from #lidar topography data with lidR! Reproducible R notebook guides users through #pointcloud filtering, raster generation & forest metrics extraction to produce key outputs like canopy height models. Explore notebook: github.com/OpenForest4D...
#googlecolab #geospatial
Multi-temporal #lidar reveals how trees grow - but interpreting change isn’t simple, given differences in point density & season. An #NYC case study (2014 vs 2017) reveals impact of data resolution and timing. #Forestry #RemoteSensing #Geospatial #PointClouds
openforest4d.org/density-and-...
🚨 Extended Abstract Deadline! 🚨
The deadline to submit your abstract for ForestSAT 2026 has been extended to November 21 at midnight (Eastern Time)! 🕛
Submit your abstract: carlos-alberto-silva.github.io/silvalab/For...
We created an #OpenSource automated workflow for multi-temporal #lidar processing to map forest change at scale. Generate canopy height, cover & change products critical for monitoring #wildfire impacts and ecosystem dynamics. Code and example from #Kaibab forest #AZ at github.com/OpenForest4D...
Discover how #lidar reveals the size & location of individual Ponderosa Pines at Sunset Crater, AZ! Using advanced algorithms in lidR, we map tree height and crowns in stunning detail, informing forest ecology and management.
openforest4d.org/tree-identif...
#Forestry
#RemoteSensing
#RStats
A lidar point cloud along central California’s Big Sur coast displaying elevation, classification, return number, and intensity. The airborne lidar point cloud was collected in 2022 has a point density of 85 points/m2.
Ever wondered what #lidar point clouds reveal about forests? OpenForest4D’s new guide breaks down how elevation, return number, intensity, and classification describe forest structure.
openforest4d.org/lidar-point-...
#pointcloud #laserscanning #forestry #geospatial
Hello world! 🌲🛰️
#ForestScience #RemoteSensing #Biomass #CarbonMonitoring #Lidar