scholarly journals Change Detection of Tree Biomass with Terrestrial Laser Scanning and Quantitative Structure Modelling

2014 ◽  
Vol 6 (5) ◽  
pp. 3906-3922 ◽  
Author(s):  
Sanna Kaasalainen ◽  
Anssi Krooks ◽  
Jari Liski ◽  
Pasi Raumonen ◽  
Harri Kaartinen ◽  
...  
Keyword(s):  
Change Detection ◽  
Laser Scanning ◽  
Terrestrial Laser Scanning ◽  
Quantitative Structure ◽  
Tree Biomass

scholarly journals Automated terrestrial laser scanning with near-real-time change detection – monitoring of the Séchilienne landslide

2017 ◽  
Vol 5 (2) ◽  
pp. 293-310 ◽  
Author(s):  
Ryan A. Kromer ◽  
Antonio Abellán ◽  
D. Jean Hutchinson ◽  
Matt Lato ◽  
Marie-Aurelie Chanut ◽  
...  
Keyword(s):  
Change Detection ◽  
Real Time ◽  
Laser Scanning ◽  
Terrestrial Laser Scanning ◽  
Cost Effective ◽  
Deformation Monitoring ◽  
Time Change ◽  
High Temporal Resolution ◽  
Atmospheric Conditions ◽  
Detection Processing

Abstract. We present an automated terrestrial laser scanning (ATLS) system with automatic near-real-time change detection processing. The ATLS system was tested on the Séchilienne landslide in France for a 6-week period with data collected at 30 min intervals. The purpose of developing the system was to fill the gap of high-temporal-resolution TLS monitoring studies of earth surface processes and to offer a cost-effective, light, portable alternative to ground-based interferometric synthetic aperture radar (GB-InSAR) deformation monitoring. During the study, we detected the flux of talus, displacement of the landslide and pre-failure deformation of discrete rockfall events. Additionally, we found the ATLS system to be an effective tool in monitoring landslide and rockfall processes despite missing points due to poor atmospheric conditions or rainfall. Furthermore, such a system has the potential to help us better understand a wide variety of slope processes at high levels of temporal detail.

scholarly journals Tree structure vs. height from terrestrial laser scanning and quantitative structure models

Silva Fennica ◽  
2014 ◽  
Vol 48 (2) ◽  
Author(s):  
Anssi Krooks ◽  
Sanna Kaasalainen ◽  
Ville Kankare ◽  
Marianna Joensuu ◽  
Pasi Raumonen ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Terrestrial Laser Scanning ◽  
Tree Structure ◽  
Quantitative Structure

scholarly journals Deriving Individual-Tree Biomass from Effective Crown Data Generated by Terrestrial Laser Scanning

2019 ◽  
Vol 11 (23) ◽  
pp. 2793
Author(s):  
Yujie Zheng ◽  
Weiwei Jia ◽  
Qiang Wang ◽  
Xu Huang
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
Terrestrial Laser Scanning ◽  
Tree Height ◽  
Biomass Estimation ◽  
Tree Biomass ◽  
Crown Height ◽  
Individual Tree ◽  
Cloud Data ◽  
Biomass Equations

Biomass reflects the state of forest management and is critical for assessing forest benefits and carbon storage. The effective crown is the region above the lower limit of the forest crown that includes the maximum vertical distribution density of branches and leaves; this component plays an important role in tree growth. Adding the effective crown to biomass equations can enhance the accuracy of the derived biomass. Six sample plots in a larch plantation (ranging in area from 0.06 ha to 0.12 ha and in number of trees from 63 to 96) at the Mengjiagang forest farm in Huanan County, Jiamusi City, Heilongjiang Province, China, were analyzed in this study. Terrestrial laser scanning (TLS) was used to obtain three-dimensional point cloud data on the trees, from which crown parameters at different heights were extracted. These parameters were used to determine the position of the effective crown. Moreover, effective crown parameters were added to biomass equations with tree height as the sole variable to improve the accuracy of the derived individual-tree biomass estimates. The results showed that the minimum crown contact height was very similar to the effective crown height, and an increase in model accuracy was apparent (with R a 2 increasing from 0.846 to 0.910 and root-mean-square error (RMSE) decreasing from 0.372 kg to 0.286 kg). The optimal model for deriving biomass included tree height, crown length from minimum contact height, crown height from minimum contact height, and crown surface area from minimum contact height. The novelty of the article is that it improves the fit of individual-tree biomass models by adding crown-related variables and investigates how the accuracy of biomass estimation can be enhanced by using remote sensing methods without obtaining diameter at breast height.

Measuring bluff erosion part 1: terrestrial laser scanning methods for change detection

2012 ◽  
Vol 38 (10) ◽  
pp. 1055-1067 ◽  
Author(s):  
Stephanie S. Day ◽  
Karen B. Gran ◽  
Patrick Belmont ◽  
Tim Wawrzyniec
Keyword(s):  
Change Detection ◽  
Laser Scanning ◽  
Terrestrial Laser Scanning ◽  
Bluff Erosion

Multi-temporal terrestrial laser scanning for modeling tree biomass change

2014 ◽  
Vol 318 ◽  
pp. 304-317 ◽  
Author(s):  
Shruthi Srinivasan ◽  
Sorin C. Popescu ◽  
Marian Eriksson ◽  
Ryan D. Sheridan ◽  
Nian-Wei Ku
Keyword(s):  
Laser Scanning ◽  
Terrestrial Laser Scanning ◽  
Tree Biomass ◽  
Multi Temporal
Sign in / Sign up

Export Citation Format

Share Document