Using Structure from Motion photogrammetry to assess large wood (LW) accumulations in the field

G Spreitzer, J Tunnicliffe, H Friedrich - Geomorphology, 2019 - Elsevier
River systems in forested catchments are strongly influenced by wood and sediment loading
from both natural (eg mass wasting) and anthropogenic (forestry) sources. In order to …

Large wood (LW) 3D accumulation mapping and assessment using structure from Motion photogrammetry in the laboratory

G Spreitzer, J Tunnicliffe, H Friedrich - Journal of Hydrology, 2020 - Elsevier
Abstract A Structure from Motion (SfM) photogrammetry-based methodology for precise
mapping of large wood (LW) accumulations in fluvial systems is presented. The technique …

Porosity and volume assessments of large wood (LW) accumulations

G Spreitzer, J Tunnicliffe, H Friedrich - Geomorphology, 2020 - Elsevier
The formation of large wood (LW) accumulations during floods represents a major hazard for
constricted river cross-sections, eg bridges and weirs, as it affects flow hydraulics and …

[HTML][HTML] Towards a non-intrusive method employing digital twin models for the assessment of complex large wood accumulations in fluvial environments

G Spreitzer, I Schalko, RM Boes, V Weitbrecht - Journal of Hydrology, 2022 - Elsevier
Quantification and assessment of large wood (LW) accumulations in fluvial systems is still
considered difficult due to the complex nature of wooden deposits. Although knowledge …

Handheld lidar as a tool for characterizing wood‐rich river corridors

A Marshall, RR Morrison, B Jones… - River Research and …, 2024 - Wiley Online Library
Wood accumulations influence geomorphic, hydraulic, and ecologic functions within a river
corridor, but characterizing these accumulations presents challenges across a range of field …

Quantification of fluvial wood using UAVs and structure from motion

D Sanhueza, L Picco, V Ruiz-Villanueva, A Iroumé… - Geomorphology, 2019 - Elsevier
Fluvial wood is recognized as one of the key elements of riverine environments. Its
importance, role, and potential related risks are widely considered and analysed. Still, to …

A faster approach to quantify large wood using UAVs

D Sanhueza, L Picco, A Paredes, A Iroumé - Drones, 2022 - mdpi.com
Large wood (LW, log at least 1 m-long and 0.1 m in diameter) in river channels has great
relevance in fluvial environments. Historically, the most used approach to estimate the …

Rules of the road: A qualitative and quantitative synthesis of large wood transport through drainage networks

N Kramer, E Wohl - Geomorphology, 2017 - Elsevier
To effectively manage wood in rivers, we need a better understanding of wood mobility
within river networks. Here, we review primarily field-based (and some numerical) studies of …

Modeling the topography of shallow braided rivers using Structure-from-Motion photogrammetry

L Javernick, J Brasington, B Caruso - Geomorphology, 2014 - Elsevier
Recent advances in computer vision and image analysis have led to the development of a
novel, fully automated photogrammetric method to generate dense 3d point cloud data. This …

Detecting fluvial wood in forested watersheds using LiDAR data: a methodological assessment

JB Atha, JT Dietrich - River Research and Applications, 2016 - Wiley Online Library
It has long been known that large wood in rivers increases channel complexity and is a
primary driver of geomorphic change in forested mountain streams in the Pacific Northwest …