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#ForestScience #RemoteSensing #Biomass #CarbonMonitoring #Lidar

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

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

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...

Very happy to share this documentary that documents some of the work of our team and our collaborators in learning more about the earthquakes of Central Asia. @jrarrowsmith.bsky.social

How many batteries does it take to do field work in the Jemez and the Hopi Buttes? 11+4+8+3+1. Funner than the rest of the doom and gloom

yes I have seen the video.
There was no slip evident but there was shaking

there are some on Carr Hill at Parkfield.
Yehuda Ben-Zion had a project he was proposing called RufZO which was Rupture Zone Observatory and I thought it had cameras as well as other sensors arrayed along and across faults in the near field

Relative elevation model of the Neches River, Texas, showing complex river channel patterns and surrounding floodplain topography in varying shades of green and blue.

Check out the latest updates to RiverREM, a Python package that automatically generates river REM visualizations. Recent improvements include new colormap options (including custom and cmocean palettes), more efficient CPU and RAM usage, and expanded documentation.

buff.ly/bwtP8Vs

Bar chart showing publications by year, broken down by discipline.

2024 OpenTopography Bibliography: Every year we review the literature for publications that used OT data or resources. Since 2009, OT has enabled 1,204 peer-reviewed publications, 139 theses, 34 book sections, and 57 reports. Read more in our full blog post: opentopography.org/blog/ot-bibl...

Multi-panel plot of a section of the Sacramento River. Top panel shows a point cloud colored by RGB values followed by hillshade plots of the ground and bathymetry data. Finally, the bathymetry was differenced from the water surface to produce a water depth map that is displayed in color draped on the DTM hillshade in the bottom panel.

Point cloud colored by RGB values for a section of the Sacramento River near Seven Mile Creek

Sacramento River, CA Topo-Bathymetric #lidar dataset recently added to OpenTopography. 174 river miles of high resolution aerial imagery, topography, bathymetry, and water surface elevations were collected to support hydrodynamic modeling and habitat prediction: opentopography.org/news/sacrame...

Explore in this interactive map of change: portal.opentopography.org/lafires

Change maps and processed #lidar DEMs used in the analysis are available here: doi.org/10.5069/G95B...

Original post-fire DEMs (courtesy of NV5 & UCSD):
Palisades: doi.org/10.5069/G9DR...
Eaton: doi.org/10.5069/G9JH...

Map for lidar-derived change from the Palisades Fire for La Costa Beach. Map colored red to blue to show change, overlain on a post-fire digital surface model hillshade.

Impacts on vegetation in Topanga State Park. Map colored red to blue to show areas of change. Overlain on a post-fire digital surface model hillshade.

Using #lidar to understand the impacts of the 2025 Palisades and Eaton Fires, Los Angeles, CA: We processed pre- & post- fire lidar data to illustrate the changes to the natural and built environments caused by these devastating fires. Blog for more info & images: opentopography.org/blog/using-l...

New paper! Rachel Adam did a great job leading this work. Thanks to PGE and ASU for support.
Think about how we map potentially active faults.
pubs.geoscienceworld.org/gsa/geospher...

Very cool! Our USGS 3DEP #lidar notebook can be found on our Github here: github.com/OpenTopograp...

M4-M5 earthquakes in the Awash area of Ethiopia (late 2024) There have been numerous M4-M5 earthquakes in the Awash area of Ethiopia over the last few months. This is within the Main Ethiopia Rift at ...

I am intrigued by these earthquakes in the northeastern Main Ethiopian Rift. I will be there next month...
activetectonics.blogspot.com/2024/12/m4-m...

scary dude. the sound as well. drove around central Java with a 6 year old who was into him. I was the one who was more scared and now I see him often.
New relative for example dims.apnews.com/dims4/defaul...

Day three of #AGU24. If you’ve not yet said hi to the OpenTopography team please stop by booth 1108 in the exhibit hall: opentopography.org/news/opentop...

Dinner at Cosmos Club in DC. IUGG social. A pilgrimage thinking of Powell and Pewe also.

Rose plant in honor of my mother