Explanipedia

Effects of ground vegetation on terrestrial laser scanning-derived digital terrain models in boreal forests Open

Noora Tienaho, Tuomas Yrttimaa, Matti Vaaja, Ninni Saarinen, Mikko Vastaranta · 2025

Assessing forest structural complexity: insights from alternative laser scanning approaches Open

Reinis Cimdins, Tuomas Yrttimaa, Mikko Vastaranta, Ville Kankare · 2025

Gamified augmented reality for data collection in urban forests Open

P. L. Chambers, Samuli Laato, Hironori Yoshida, Tuomas Yrttimaa, Kaisa Liimatainen , et al. · 2025

Benefits of using multi-return terrestrial laser scanning for tree characterization in southern boreal forests Open

Teemu Kamula, Tuomas Yrttimaa, Anna-Leena Erkkilä, Lauri Liikonen, Mikko Vastaranta · 2025

Capturing trends in forest structural complexity development using laser scanning techniques Open

Reinis Cimdins, Tuomas Yrttimaa, Juha Hyyppä, Mikko Vastaranta, Ville Kankare · 2025

Forest structural complexity reflects realized niche occupancy, capturing how effectively the vegetation utilizes available resources and provides habitats for species. This makes it a key indicator of forest ecosystem diversity, and an im…

Realistic virtual forests for understanding forest disturbances and recovery from space Open

Kim Calders, Martin Herold, Jennifer Adams, John Armston, Benjamin Brede , et al. · 2025

Forests worldwide are undergoing large-scale and unprecedented changes in terms of structure and composition due to land use change and natural disturbances. We have some understanding of how disturbances impact forest structure. Still, we…

Can we monitor seedling stands using Landsat Time Series? Open

Parvez Rana, Eero Muinonen, Matti Tolvanen, Anwarul Chowdhury, Mikko Vastaranta , et al. · 2025

An integrated approach combining bi-temporal airborne laser scanning and X-ray microdensitometry in assessing wood properties Open

Maryam Poorazimy, Ghasem Ronoud, Tuomas Yrttimaa, Juha Hyyppä, Ninni Saarinen , et al. · 2025

Identification and segmentation of branch whorls and sawlogs in standing timber using terrestrial laser scanning and deep learning Open

Mika Pehkonen, Mikko Vastaranta, Markus Holopainen, Juha Hyyppä, Antero Kukko , et al. · 2025

Gaining insight into the wood quality of standing timber could facilitate more precise utilization of wood material, thereby promoting a more sustainable use of forest resources. In this study, we utilized convolutional neural network–base…

Influence of bark beetle infestation on stem diameter dynamics Open

Samuli Junttila, Tuomas Yrttimaa, Minna Blomqvist, Teemu Paljakka, Mikko Pelto-Arvo , et al. · 2025

Bark beetle epidemics have increased globally due to drought and a warming climate, impairing forest ecosystem services by inducing severe forest disturbances. Bark beetle infestation monitoring is urgently needed for pre-emptive forest ma…

Quantifying the drivers of tree mortality: A case study from urban recreational boreal forest Open

Johanna Jääskeläinen, Samuli Junttila, Hannah O’Sullivan, Yan Cheng, Stéphanie Horion , et al. · 2025

Examining low-intensity surface fires in boreal forests using sentinel-2 time series and bitemporal terrestrial laser scanning Open

Noora Tienaho, S. Wittke, Tuomas Yrttimaa, A. Kivimäki, Eetu Puttonen , et al. · 2025

Ultra-Wideband-Based Method for Measuring Tree Positions With Decimeter-Level Accuracy Under a Forest Canopy Open

Zuoya Liu, Harri Kaartinen, Teemu Hakala, Heikki Hyyti, Juha Hyyppä , et al. · 2025

Terrestrial laser scanning point clouds and tree attributes from 55 sample plots at the Evo test site (spring 2024) Open

Tuomas Yrttimaa, Lauri Liikonen, Anna-Leena Erkkilä, Mikko Vastaranta · 2025

Terrestrial laser scanning (TLS) is an active remote sensing technique that digitizes trees and forest stands by capturing range measurements, resulting in detailed point clouds. To support the development of computational methods for tree…

Quantifying architectural uniqueness of Scots pine trees using terrestrial laser scanning: toward individual tree fingerprinting Open

Tuomas Yrttimaa, Samuli Junttila, Juha Hyyppä, Markus Holopainen, Michael A. Wulder , et al. · 2024

Tree architecture reflects a hierarchical growth pattern shaped by the interplay between genetics and the environment. Environmental variation leads to unique resource availability, resulting in each tree developing distinct structural fea…

Quantifying changes in forest structural complexity using bi-temporal airborne laser scanning Open

Reinis Cimdins, Tuomas Yrttimaa, Juha Hyyppä, Mikko Vastaranta, Ville Kankare · 2024

Structural complexity is an important forest characteristic for habitat assessment, forest management and planning. However, monitoring how forest structural complexity evolves over time in various forest types has not been widely explored…

Characterizing the competitive stress of individual trees using point clouds Open

Ghasem Ronoud, Maryam Poorazimy, Tuomas Yrttimaa, Antero Kukko, Juha Hyyppä , et al. · 2024

Can We Monitor Seedling Stands Using Landsat Time Series? Open

Rana Parvez, Eero Muinonen, Matti Tolvanen, Anwarul Chowdhury, Mikko Vastaranta , et al. · 2024

Monitoring the status of seedling stands is crucial for determining whether seedlings have achieved the required density and height and assessing the need for weeding. We studied the potential of Landsat Time Series (LTS) data for monitori…

Post-fire vegetation dynamics and location as main drivers of fire recurrence in Mediterranean forests Open

Marina Peris-Llopis, Mikko Vastaranta, Ninni Saarinen, José Ramón González-Olabarría, Jordi García-Gonzalo , et al. · 2024

Employing Gamified Crowdsourced Close-Range Sensing in the Pursuit of a Digital Twin of the Earth Open

Timo Nummenmaa, Samuli Laato, P. L. Chambers, Tuomas Yrttimaa, Mikko Vastaranta , et al. · 2024

Advances in mobile consumer technology, especially in smartphones, have given rise to numerous new crowdsourcing opportunities. With the miniaturization of sensors and the growing number of smartphone models containing a wide range of them…

Significant increase in forest canopy mortality in boreal forests in Southeast Finland Open

Samuli Junttila, Minna Blomqvist, Ville Laukkanen, Einari Heinaro, Antti Polvivaara , et al. · 2024

Detecting tree mortality using waveform features of airborne LiDAR Open

Antti Polvivaara, Ilkka Korpela, Samuli Junttila, Mikko Vastaranta · 2024

Tree mortality impacts biodiversity, carbon dynamics and the management of forests. Climate change is expected to increase tree mortality, but understanding of tree mortality rates and the underlying processes is limited; thus, more accura…

Detecting tree mortality using waveform features of airborne LiDAR Open

Antti Polvivaara, Ilkka Korpela, Mikko Vastaranta, Samuli Junttila · 2024

Tree mortality impacts biodiversity, carbon dynamics and the management of forests. Climate change is expected to increase tree mortality, but understanding of tree mortality rates and the underlying processes is limited; thus, more accura…

Benefits of Using Multi-Return Terrestrial Laser Scanning for Tree Characterization in Southern Boreal Forests Open

Teemu Kamula, Tuomas Yrttimaa, Anna-Leena Erkkilä, Lauri Liikonen, Mikko Vastaranta · 2024

Influence of Bark Beetle Infestation on Stem Diameter Dynamics Open

Samuli Junttila, Tuomas Yrttimaa, Minna Blomqvist, Teemu Paljakka, Mikko Pelto-Arvo , et al. · 2024

Significant Increase in Forest Canopy Mortality in Boreal Forests in Southeast Finland Open

Samuli Junttila, Minna Blomqvist, Ville Laukkanen, Einari Heinaro, Antti Polvivaara , et al. · 2024

Quantifying fire-induced changes in ground vegetation using bitemporal terrestrial laser scanning Open

Noora Tienaho, Ninni Saarinen, Tuomas Yrttimaa, Ville Kankare, Mikko Vastaranta · 2024

Forest fires pose a significant threat to forest carbon storage and sinks, yet they also play a crucial role in the natural dynamics of boreal forests. Accurate quantification of biomass changes resulting from forest fires is essential for…

Pintapalojen kartoittaminen boreaalisissa metsissä Open

Noora Tienaho, Ninni Saarinen, Tuomas Yrttimaa, Mikko Vastaranta · 2024

A method for identifying and segmenting branches of Scots pine (<i>Pinus sylvestris</i> L.) trees using terrestrial laser scanning Open

Tuomas Yrttimaa, Ville Kankare, Ville Luoma, Samuli Junttila, Ninni Saarinen , et al. · 2023

Terrestrial laser scanning (TLS) has been adopted as a feasible technique to characterize tree stems while the characterization of trees’ branching architecture has remained less explored. In general, branching architecture refers to the s…

Tree height and stem growth dynamics in a Scots pine dominated boreal forest Open

Tuomas Yrttimaa, Samuli Junttila, Ville Luoma, Jiri Pyörälä, Eetu Puttonen , et al. · 2023

Tree growth is a key forest ecosystem service and essential for carbon sequestration and biomass production. However, the intra-seasonal dynamics of tree height and stem diameter growth have been difficult to measure hampering the understa…

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