Andrew Sanchez Meador
@bi0m3trics.bsky.social
Exec. Director at eri.nau.edu | Prof. at nau.edu/forestry | Forest restoration, biometrics, AI & lidar | Land Cruiser 80 Series enthusiast | Passionate about impactful science & strategic leadership | quantitativeecology.org | Views my own
Pinned
spanner v1.0.2 is now live on CRAN
cran.r-project.org/web/packages...
cran.r-project.org/web/packages...
A little visualization exploring occlusion on 1m quadrats using terrestrial lidar scanning (the maroon sphere)
February 7, 2026 at 9:26 PM
A little visualization exploring occlusion on 1m quadrats using terrestrial lidar scanning (the maroon sphere)
We're hiring!
eri.nau.edu/manager-wild...
The WIRE Partnership Manager advances solutions to the wildfire-driven insurance crisis, leading economic research and partner engagement to promote resilience and proactive forest management.
eri.nau.edu/manager-wild...
The WIRE Partnership Manager advances solutions to the wildfire-driven insurance crisis, leading economic research and partner engagement to promote resilience and proactive forest management.
Manager, Wildfire Insurance and Resilient Economies (WIRE) - Ecological Restoration Institute
Northern Arizona University's Ecological Restoration Institute seeks field technicians for wildfire and forest health research. Ideal candidates have forestry experience, plant identification skills, ...
eri.nau.edu
February 7, 2026 at 3:48 PM
We're hiring!
eri.nau.edu/manager-wild...
The WIRE Partnership Manager advances solutions to the wildfire-driven insurance crisis, leading economic research and partner engagement to promote resilience and proactive forest management.
eri.nau.edu/manager-wild...
The WIRE Partnership Manager advances solutions to the wildfire-driven insurance crisis, leading economic research and partner engagement to promote resilience and proactive forest management.
We're hiring!
eri.nau.edu/manager-rest...
The Restoration Ecology & Forest Resilience Program Manager leads projects that improve forest health and reduce wildfire risk, coordinating research, partners, and staff to advance resilient landscapes and communities.
eri.nau.edu/manager-rest...
The Restoration Ecology & Forest Resilience Program Manager leads projects that improve forest health and reduce wildfire risk, coordinating research, partners, and staff to advance resilient landscapes and communities.
Manager, Restoration Ecology & Forest Resilience - Ecological Restoration Institute
Northern Arizona University's Ecological Restoration Institute seeks field technicians for wildfire and forest health research. Ideal candidates have forestry experience, plant identification skills, ...
eri.nau.edu
February 7, 2026 at 3:47 PM
We're hiring!
eri.nau.edu/manager-rest...
The Restoration Ecology & Forest Resilience Program Manager leads projects that improve forest health and reduce wildfire risk, coordinating research, partners, and staff to advance resilient landscapes and communities.
eri.nau.edu/manager-rest...
The Restoration Ecology & Forest Resilience Program Manager leads projects that improve forest health and reduce wildfire risk, coordinating research, partners, and staff to advance resilient landscapes and communities.
spanner v1.0.2 is now live on CRAN
cran.r-project.org/web/packages...
cran.r-project.org/web/packages...
February 3, 2026 at 12:33 PM
spanner v1.0.2 is now live on CRAN
cran.r-project.org/web/packages...
cran.r-project.org/web/packages...
It's been a winter of finally getting R packages done and out...
February 1, 2026 at 6:54 PM
It's been a winter of finally getting R packages done and out...
introduced major visualization and data-integration features alongside performance improvements, robustness fixes, and CRAN compliance updates for spanner 1.0.2.
github.com/bi0m3trics/s...
github.com/bi0m3trics/s...
January 27, 2026 at 4:39 AM
introduced major visualization and data-integration features alongside performance improvements, robustness fixes, and CRAN compliance updates for spanner 1.0.2.
github.com/bi0m3trics/s...
github.com/bi0m3trics/s...
Reposted by Andrew Sanchez Meador
Excited to share our new Fire Ecology study! 🌲🔥 Terrestrial lidar can rapidly and accurately measure crown scorch 20x faster than traditional methods. Our R package, CrownScorchTLS, helps make this method accessible for large-scale forest monitoring.
doi.org/10.1186/s424...
doi.org/10.1186/s424...
November 14, 2025 at 2:11 AM
Excited to share our new Fire Ecology study! 🌲🔥 Terrestrial lidar can rapidly and accurately measure crown scorch 20x faster than traditional methods. Our R package, CrownScorchTLS, helps make this method accessible for large-scale forest monitoring.
doi.org/10.1186/s424...
doi.org/10.1186/s424...
Terrestrial lidar scanning provides efficient measurements of fire-caused crown scorch in longleaf pine by Jeffery B. Cannon, Nicole E. Zampieri, Andrew W. Whelan, Timothy M. Shearman, Andrew J. Sánchez Meador & J. Morgan Varner at Fire Ecology! Give it a read... link.springer.com/article/10.1...
November 8, 2025 at 4:18 PM
Terrestrial lidar scanning provides efficient measurements of fire-caused crown scorch in longleaf pine by Jeffery B. Cannon, Nicole E. Zampieri, Andrew W. Whelan, Timothy M. Shearman, Andrew J. Sánchez Meador & J. Morgan Varner at Fire Ecology! Give it a read... link.springer.com/article/10.1...
From data gaps to actionable insight — TWIG tracks wildfire treatments coast to coast.
news.nau.edu/twig/
news.nau.edu/twig/
September 16, 2025 at 4:48 PM
From data gaps to actionable insight — TWIG tracks wildfire treatments coast to coast.
news.nau.edu/twig/
news.nau.edu/twig/
Looking for some shade on NAU's campus or in downtown Flagstaff? I got you covered...
September 2, 2025 at 1:20 PM
Looking for some shade on NAU's campus or in downtown Flagstaff? I got you covered...
Just out: A new geodatabase of fuel treatments across federal lands—published in Scientific Data.
Whether you’re mapping change or assessing risk, TWIG shows when and where treatments happened.
Grateful to be part of a team!
Paper - www.nature.com/articles/s41...
TWIG - reshapewildfire.org/twig
Whether you’re mapping change or assessing risk, TWIG shows when and where treatments happened.
Grateful to be part of a team!
Paper - www.nature.com/articles/s41...
TWIG - reshapewildfire.org/twig
August 31, 2025 at 3:42 PM
Just out: A new geodatabase of fuel treatments across federal lands—published in Scientific Data.
Whether you’re mapping change or assessing risk, TWIG shows when and where treatments happened.
Grateful to be part of a team!
Paper - www.nature.com/articles/s41...
TWIG - reshapewildfire.org/twig
Whether you’re mapping change or assessing risk, TWIG shows when and where treatments happened.
Grateful to be part of a team!
Paper - www.nature.com/articles/s41...
TWIG - reshapewildfire.org/twig
Reposted by Andrew Sanchez Meador
The Turkeyfeather Fire in the Gila Wilderness, NM has burned as a low-severity fire over about 24,000 acres (so far). This is a continuation of a fire regime that existed for millennia before the 20th century. This 🧵reviews the fire history of the Gila, as my colleagues and I have studied it. 1/18
July 20, 2025 at 1:36 PM
The Turkeyfeather Fire in the Gila Wilderness, NM has burned as a low-severity fire over about 24,000 acres (so far). This is a continuation of a fire regime that existed for millennia before the 20th century. This 🧵reviews the fire history of the Gila, as my colleagues and I have studied it. 1/18
Reposted by Andrew Sanchez Meador
🔥 New study: 85% of remaining #LongleafPine habitat faces tropical storm-force winds every 6 years. We explore how #storms, #fire, insects, and salvage logging interact to shape resilience—and what managers can do about it. bit.ly/44QK3Uk Led by @nzampieri.bsky.social
July 7, 2025 at 1:20 PM
🔥 New study: 85% of remaining #LongleafPine habitat faces tropical storm-force winds every 6 years. We explore how #storms, #fire, insects, and salvage logging interact to shape resilience—and what managers can do about it. bit.ly/44QK3Uk Led by @nzampieri.bsky.social
Light patterns align with successful Quercus and Carya regeneration but reveal continued challenges in managing dry-mesic southern Appalachian upland hardwood forests cdnsciencepub.com/doi/10.1139/...
Light patterns align with successful Quercus and Carya regeneration but reveal continued challenges in managing dry-mesic southern Appalachian upland hardwood forests
Field experiments of gap-based silviculture have provided inconsistent evidence that these approaches are effective in regenerating shade midtolerant oaks (Quercus spp.) and hickories (Carya spp.) in ...
cdnsciencepub.com
June 29, 2025 at 3:15 PM
Light patterns align with successful Quercus and Carya regeneration but reveal continued challenges in managing dry-mesic southern Appalachian upland hardwood forests cdnsciencepub.com/doi/10.1139/...
Handheld lidar sensors can accurately measure aboveground biomass - Atkins - 2025 - Ecosphere - Wiley Online Library esajournals.onlinelibrary.wiley.com/doi/10.1002/...
Happy to see this one out too!
Happy to see this one out too!
June 9, 2025 at 2:59 PM
Handheld lidar sensors can accurately measure aboveground biomass - Atkins - 2025 - Ecosphere - Wiley Online Library esajournals.onlinelibrary.wiley.com/doi/10.1002/...
Happy to see this one out too!
Happy to see this one out too!
Eigenfeature‐enhanced deep learning: advancing tree species classification in mixed conifer forests with lidar - Blackburn - Remote Sensing in Ecology and Conservation - Wiley Online Library zslpublications.onlinelibrary.wiley.com/doi/10.1002/...
Happy to see this out!
Happy to see this out!
Eigenfeature‐enhanced deep learning: advancing tree species classification in mixed conifer forests with lidar
Workflow for tree species classification using lidar data. Steps include preprocessing (normalization, noise removal, CHM creation), tree segmentation, eigenfeature extraction, and 2D CNN training/va...
zslpublications.onlinelibrary.wiley.com
June 9, 2025 at 2:58 PM
Eigenfeature‐enhanced deep learning: advancing tree species classification in mixed conifer forests with lidar - Blackburn - Remote Sensing in Ecology and Conservation - Wiley Online Library zslpublications.onlinelibrary.wiley.com/doi/10.1002/...
Happy to see this out!
Happy to see this out!
Got to get out and do a little PJ scanning today.
February 24, 2025 at 3:19 AM
Got to get out and do a little PJ scanning today.
Finally got the first version of my R code/wrapper working that calculates solar potential in watt hours per square meter and day, summed by pixel using vostok - github.com/3dgeo-heidel...
January 10, 2025 at 4:57 PM
Finally got the first version of my R code/wrapper working that calculates solar potential in watt hours per square meter and day, summed by pixel using vostok - github.com/3dgeo-heidel...
The allusive search for "age" from lidar continues....
November 27, 2024 at 6:03 PM
The allusive search for "age" from lidar continues....
November 16, 2024 at 9:14 PM