Measuring rill erosion by laser scanning

Vinci, Alessandra; Brigante, Raffaella; Todisco, Francesca; Mannocchi, Francesco; Radicioni, Fabio

doi:10.1016/j.catena.2014.09.003

Cited by 85 publications

(58 citation statements)

References 44 publications

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“…Field measurements of landforms have increased significantly worldwide, driven by the availability of new surveying technologies. Recent improvements include, but are not limited to, aerial and terrestrial light detection and ranging (lidar) systems (Kukko et al, 2012;Vinci et al, 2015;Eitel et al, 2016;Hawdon et al, 2016), integrated unmanned aerial vehicles (UAVs) utilizing both photogrammetric and lidar payloads (Bachrach et al, 2012;Bry et al, fort within the scientific community to collect morphological data in a dependable and reproducible manner, specifically when performing long-term process investigation studies .…”

Section: Introductionmentioning

confidence: 99%

Quantifying uncertainty in high-resolution remotely sensed topographic surveys for ephemeral gully channel monitoring

Wells

Momm

Castillo³

2017

Earth Surf. Dynam.

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Abstract. Spatio-temporal measurements of landform evolution provide the basis for process-based theory formulation and validation. Over time, field measurements of landforms have increased significantly worldwide, driven primarily by the availability of new surveying technologies. However, there is no standardized or coordinated effort within the scientific community to collect morphological data in a dependable and reproducible manner, specifically when performing long-term small-scale process investigation studies. Measurements of the same site using identical methods and equipment, but performed at different time periods, may lead to incorrect estimates of landform change as a result of three-dimensional registration errors. This work evaluated measurements of an ephemeral gully channel located on agricultural land using multiple independent survey techniques for locational accuracy and their applicability in generating information for model development and validation. Terrestrial and unmanned aerial vehicle photogrammetry platforms were compared to terrestrial lidar, defined herein as the reference dataset. Given the small scale of the measured landform, the alignment and ensemble equivalence between data sources was addressed through postprocessing. The utilization of ground control points was a prerequisite to three-dimensional registration between datasets and improved the confidence in the morphology information generated. None of the methods were without limitation; however, careful attention to project preplanning and data nature will ultimately guide the temporal efficacy and practicality of management decisions.

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Section: Introductionmentioning

confidence: 99%

Quantifying uncertainty in high-resolution remotely sensed topographic surveys for ephemeral gully channel monitoring

Wells

Momm

Castillo³

2017

Earth Surf. Dynam.

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“…Recently, a detailed erosion occurrence monitoring directly by elevation models derived by terrestrial laser scanning (Vinci et al 2015), stereoscopic imagery (Bauer et al 2015), and SfM methods (Kaiser et al 2014) has become possible. Unfortunately this type of data is not available for earlier periods and researchers have to rely on aerial photogrammetry and visual data interpretation.…”

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confidence: 99%

“…However, the accuracy depends on the intensity of erosion effect in the analyzed data. Another possible method for automatic identifying these small erosion patterns is to use the digital elevation model (DEM) obtained from UAV data or from other precise methods referenced below (Eltner et al 2015;Vinci et al 2015).…”

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confidence: 99%

Application of historical and recent aerial imagery in monitoring water erosion occurrences in Czech highlands

Báčová¹,

Krása²

2016

Soil & Water Res.

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Báčová M., Krása J. (2016): Application of historical and recent aerial imagery in monitoring water erosion occurrences in Czech highlands. Soil & Water Res., This study is focused on the historical evolution of a heavily eroded field with discontinuous grass cover on a major thalweg (ephemeral gully). Tens of parcels originally formed a protective pattern in the study area, and the thalweg was permanently covered with grass. During the period of collectivization, the field structure had been unified into a compact 34 ha parcel, which resulted in the formation of ephemeral gullies after every heavy rainfall event. Historical and recent aerial photographs were used to analyze the erosion occurrences, vegetation degradation connected with the erosion processes, and the land-use pattern. The visual erosion pattern assessment has indicated that in this field, rills and other erosion objects have repeatedly developed in the same locations in different time periods. The soil erosion hazard was also modelled by the new Czech erosion model Atlas EROZE. A comparison between the modelling results and the assessment of real visual data shows that areas at risk can be identified by both these methods. In addition, the land-use pattern was modelled using two different scenarios. The results suggest that soil erosion can be significantly reduced by segmentation of the field into smaller plots.

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“…The application of TLS has rapidly increased in geoscience research for applications to various scales because of its potential to provide highly accurate and dense terrain elevation data (Eitel et al, 2011;Orem and Pelletier, 2015;Vinci et al, 2015;Neugirg et al, 2016;Stenberg et al, 2016;Fey and Wichmann, 2017;Goodwin et al, 2017;Liu et al, 2017). The application of TLS has rapidly increased in geoscience research for applications to various scales because of its potential to provide highly accurate and dense terrain elevation data (Eitel et al, 2011;Orem and Pelletier, 2015;Vinci et al, 2015;Neugirg et al, 2016;Stenberg et al, 2016;Fey and Wichmann, 2017;Goodwin et al, 2017;Liu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Using terrestrial LiDAR to measure water erosion on stony plots under simulated rainfall

Nearing

Nichols

et al. 2019

Earth Surf Processes Landf

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Terrestrial LiDAR scanning (TLS) technology is widely used to detect terrain elevation changes. This study examines the potential use of terrestrial LiDAR to measure erosion on small experimental plots at high resolution. Multitemporal TLS scans were conducted at six positions around plots (12 m 2 ) with three slope treatments through 11 simulated rainfall applications. Surface elevation changes were quantified by comparing scans between rainfall simulations, and elevation changes greater than the level of detection were used to obtain volumetric change estimations. Erosion mass was estimated both by using soil bulk density and the density of sediment collected in runoff, and then compared to the erosion estimated from the runoff samples. Results showed: (1) with the aid of fixed reference controls in the form of concrete target surfaces of varying roughness, registration accuracy was better than 1 mm and mean level of change detection was less than 2.2 mm; (2) the average absolute relative errors of TLS-estimated eroded mass ranged from 6.8% to 31.8%, with greater values on 5% slope; (3) the TLS-estimated erosion accuracy was affected by erosion magnitude, the utilized material density and number of scan positions, and a grid size of 10 mm was found to be appropriate for this scale to estimate the volumetric changes; (4) the number of scan positions could be reduced to three while not significantly impacting volumetric change estimations; and (5) elevating the scanner resulted in much better accuracy for eroded mass estimations. This study suggests that using LiDAR to monitor soil erosion at the plot scale is feasible, and provides guidance about the level of accuracy one might expect in doing so.

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Measuring rill erosion by laser scanning

Cited by 85 publications

References 44 publications

Quantifying uncertainty in high-resolution remotely sensed topographic surveys for ephemeral gully channel monitoring

Quantifying uncertainty in high-resolution remotely sensed topographic surveys for ephemeral gully channel monitoring

Application of historical and recent aerial imagery in monitoring water erosion occurrences in Czech highlands

Using terrestrial LiDAR to measure water erosion on stony plots under simulated rainfall

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