Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Chris Hopkinson"'
Publikováno v:
Canadian Journal of Remote Sensing, Vol 50, Iss 1 (2024)
Monitoring aboveground biomass (AGB) is critical for carbon reporting and quantifying ecosystem change. AGB from field data can be scaled to the region using airborne lidar. However, lidar-based AGB products emphasize upland forests, which may not re
Externí odkaz:
https://doaj.org/article/d1052cbe3263450fa3284e693dd4ef62
Publikováno v:
Forests, Vol 14, Iss 10, p 1979 (2023)
Seismic lines are the dominant anthropogenic disturbance in the boreal forest of the Canadian province of Alberta, fragmenting over 1900 km2 of peatland areas and accounting for more than 80% of all anthropogenic disturbance in this region. The goal
Externí odkaz:
https://doaj.org/article/893d2ab057434ca5b7eabc055e71eef1
Delineating and Reconstructing 3D Forest Fuel Components and Volumes with Terrestrial Laser Scanning
Publikováno v:
Remote Sensing, Vol 15, Iss 19, p 4778 (2023)
Predictive accuracy in wildland fire behavior is contingent on a thorough understanding of the 3D fuel distribution. However, this task is complicated by the complex nature of fuel forms and the associated constraints in sampling and quantification.
Externí odkaz:
https://doaj.org/article/488aa66e94854295b4f5c0349bc92624
Publikováno v:
Canadian Journal of Remote Sensing, Vol 48, Iss 1, Pp 107-125 (2022)
Airborne LiDAR can support high resolution watershed-scale snow depth mapping that provides the spatial coverage necessary to inform water supply forecasts for mountainous headwaters. This research utilized LIDAR and machine learning to evaluate snow
Externí odkaz:
https://doaj.org/article/053d90e4f9c14cd39ec0a040ad67b564
Autor:
Chris Hopkinson, Craig A. Coburn
Publikováno v:
Canadian Journal of Remote Sensing, Vol 48, Iss 1, Pp 71-80 (2022)
The 41st Canadian Symposium on Remote Sensing (CSRS) was a unique event, originally planned to be hosted as an in-person event in Yellowknife, Northwest Territories but ultimately delivered 100% online due to the COVID-19 global pandemic. As the 41st
Externí odkaz:
https://doaj.org/article/6695b5cab91048a2a8b2ba6a7a216d8d
Autor:
Celeste Barnes, Chris Hopkinson
Publikováno v:
Canadian Journal of Remote Sensing, Vol 48, Iss 1, Pp 81-92 (2022)
The objective of this study is to evaluate the performance of an Airborne Laser Scanning (ALS) snow sampling strategy using two distinct flight paths within a mountainous watershed. Drivers of snow depth variability (canopy, elevation, topographic po
Externí odkaz:
https://doaj.org/article/afe0c3f9a70a4c5f8c5c3a735c2e89ba
Publikováno v:
Canadian Journal of Remote Sensing, Vol 48, Iss 1, Pp 1-4 (2022)
Externí odkaz:
https://doaj.org/article/c11fff2af1824b67a8dbd38ef7e35a09
Autor:
Zhouxin Xi, Chris Hopkinson
Publikováno v:
Canadian Journal of Remote Sensing, Vol 47, Iss 2, Pp 228-242 (2021)
Detecting individual-tree crowns provides a fundamental analysis unit bridging macro ecological patterns and micro physiological functions. This study adapted an anchor-free deep learning model, CenterNet, to detect individual crown locations and reg
Externí odkaz:
https://doaj.org/article/08b1877de7174c9eae19332f0c497bce
Autor:
David R. McCaffrey, Chris Hopkinson
Publikováno v:
Canadian Journal of Remote Sensing, Vol 46, Iss 6, Pp 715-732 (2020)
Historic changes in Alpine Treeline Ecotone were modeled using 21 topographic, climatic, geologic, and disturbance variables in a random forest model. Airborne LiDAR and oblique historic repeat photography were used to identify changes in canopy cove
Externí odkaz:
https://doaj.org/article/f51842514c884f35acf9abc5f789578d
Autor:
Zhouxin Xi, Chris Hopkinson
Publikováno v:
Remote Sensing, Vol 14, Iss 23, p 6116 (2022)
Using terrestrial laser scanning (TLS) technology, forests can be digitized at the centimeter-level to enable fine-scale forest management. However, there are technical barriers to converting point clouds into individual-tree features or objects alig
Externí odkaz:
https://doaj.org/article/92458ca4831c484cab95f328006cff44