Quantification and analysis of geomorphic processes on a recultivated iron ore mine on the Italian island Elba using long-time ground-based LIDAR and photogrammetric data by an UAV

Haas, Florian; Hilger, Ludwig; Neugirg, Fabian; Umstädter, Kathrin; Breitung, Christian; Fischer, Peter; Hilger, Paula; Heckmann, Tobias; Dusik, Jana; Kaiser, Andreas; Schmidt, Jürgen; Seta, Marta Della; Rosenkranz, Ruben; Becht, Michael

doi:10.5194/nhessd-3-6271-2015

Cited by 6 publications

(9 citation statements)

References 39 publications

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“…Lidar data were acquired during a 2‐day field campaign in November 2014 using a Terrestrial Laserscanner (TLS) Riegl VZ4000 with a maximum scanning distance up to 4,000 m. To provide high‐resolution point data of the crater and minimize shadowing effects (Haas et al, ), the scanning was done from eight different scan positions around the crater rim (e.g., Figure b). Global positions of the scan sites were provided by externally measured reflectors (dGNSS system).…”

Section: Methodsmentioning

confidence: 99%

“…Global positions of the scan sites were provided by externally measured reflectors (dGNSS system). After several postprocessing steps (Haas et al, ), including registration/referencing of every single scan position (iterative closest point [ICP]‐based algorithm; precision of the referencing: 0.007 to 0.013 m), thinning, and filtering (e.g., flying points in the Riscan Pro software, riegl.com), total number of points sums up to 60.10 6 (mean point density: 55 points per square meter). Point clouds of all single scan positions were merged and exported as ASCII files.…”

Section: Methodsmentioning

confidence: 99%

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On the Link Between External Forcings and Slope Instabilities in the Piton de la Fournaise Summit Crater, Reunion Island

et al. 2018

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We have analyzed the impact of different forcings, such as rain and seismicity, on slope instabilites on an active volcano. For this, we compiled a catalog of the locations and volumes of rockfalls in the Piton de la Fournaise crater using seismic records. We validated it by comparing the locations and volumes to those deduced from photogrammetric data. We analyzed 10,477 rockfalls, spanning the period 2014 to 2016. This period corresponds to the renewal of volcanic activity after a 41‐month rest. Our analysis reveals that renewed eruptive activity has unsettled the crater edges. External forcings such as rain and seismicity are shown to potentially increase the number and the volume of rockfalls, with a stronger impact on the volume. Preeruptive seismicity seems to be the main triggering factor for the largest volumes, with a delay of one to several days. Rain alone does not seem to trigger especially large rockfalls. We infer that repetitive vibrations from the many seismic events, combined with the action of rain, induce crack (or slip) growth in highly fractured (or granular) materials, leading to the collapse of large volumes. Regarding their spatial distribution before an eruption, the largest rockfalls seem to migrate toward the location of magma extrusion.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

On the Link Between External Forcings and Slope Instabilities in the Piton de la Fournaise Summit Crater, Reunion Island

et al. 2018

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“…Unmanned Aerial Vehicles (UAVs) have integrated autopilot technology, which allows for semi-or fully autonomous navigation, flight control and image acquisition capabilities [30]. Researchers are beginning to explore the use of UAVs for the acquisition of remote sensing imagery and application in Earth surface analysis with a higher level of detail [31,32]. Several authors have already employed high resolution DSMs of cm-accuracy obtained from UAV-based imagery to monitor and quantify gully erosion [27,33,34].…”

Section: Introductionmentioning

confidence: 99%

Gully Erosion Mapping and Monitoring at Multiple Scales Based on Multi-Source Remote Sensing Data of the Sancha River Catchment, Northeast China

Wang

Zhang

et al. 2016

IJGI

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This research is focused on gully erosion mapping and monitoring at multiple spatial scales using multi-source remote sensing data of the Sancha River catchment in Northeast China, where gullies extend over a vast area. A high resolution satellite image (Pleiades 1A, 0.7 m) was used to obtain the spatial distribution of the gullies of the overall basin. Image visual interpretation with field verification was employed to map the geometric gully features and evaluate gully erosion as well as the topographic differentiation characteristics. Unmanned Aerial Vehicle (UAV) remote sensing data and the 3D photo-reconstruction method were employed for detailed gully mapping at a site scale. The results showed that: (1) the sub-meter image showed a strong ability in the recognition of various gully types and obtained satisfactory results, and the topographic factors of elevation, slope and slope aspects exerted significant influence on the gully spatial distribution at the catchment scale; and (2) at a more detailed site scale, UAV imagery combined with 3D photo-reconstruction provided a Digital Surface Model (DSM) and ortho-image at the centimeter level as well as a detailed 3D model. The resulting products revealed the area of agricultural utilization and its shaping by human agricultural activities and water erosion in detail, and also provided the gully volume. The present study indicates that using multi-source remote sensing data, including satellite and UAV imagery simultaneously, results in an effective assessment of gully erosion over multiple spatial scales. The combined approach should be continued to regularly monitor gully erosion to understand the erosion process and its relationship with the environment from a comprehensive perspective.

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“…Although TLS is highly accurate, and is generally treated as ''true'' results, some research has shown that it was practicable to use UAVs in MA when taking into consideration factors such as cost, accuracy, and mine size. At present, UAVs equipped with digital cameras have been used widely in MA for terrain surveying (Chen et al 2015;Esposito et al 2017;Kršák et al 2016;Lee and Choi 2015;Ozdemir and Kumral 2019), earthwork volume measurement (Hugenholtz et al 2015), three-dimensional reconstruction (Chen et al 2015;Salvini et al 2018;Xiang et al 2018), slope and geological hazard monitoring (Haas et al 2016;Malpeli and Chirico 2015;Tong et al 2015).…”

Section: Terrain Surveying and 3d Modelingmentioning

confidence: 99%

“…Examining the mechanisms of unstable slopes and monitoring them remotely are important for ensuring smooth mining operations. Studies have shown that UAVs can provide rapid identification and stability monitoring of slopes (Haas et al 2016;Francioni et al 2015;Salvini et al 2018) and mine terraces (Xiang et al 2018) in open-cast mines.…”

Section: Slope Stability Monitoringmentioning

confidence: 99%

A review of UAV monitoring in mining areas: current status and future perspectives

Ren

Zhao

Xiao

et al. 2019

Int J Coal Sci Technol

235

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With the emergence and development of unmanned aerial vehicles (UAVs), different sensors have become more miniaturized and intelligent. UAVs equipped with various sensors are now an important approach for acquiring spatial data. Many advantages, such as low cost, short revisiting cycle, flexibility and high precision, have made UAVs powerful tools in geological, agricultural, ecological and forestry growth monitoring, as well as evaluation. Now, UAVs are a hotspot in scientific research. Their application in mining areas (MA), although still in its infancy, is developing rapidly in terms of speed, scale and service scope. This research examines aspects such as UAV platforms, different sensors and their application fields, as well as reviewing the advances of scientific research in MA at the present time. By combining current research and the functions of multiple sensors, an application framework for UAV monitoring in MA is constructed. Finally, the challenge and prospects for the development of UAVs and sensors are also considered. This research hopes to provide a technical reference, expanding the knowledge and recognition of UAV monitoring in MA, as well as an assessment of applications in mining, reclamation and environment.

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Quantification and analysis of geomorphic processes on a recultivated iron ore mine on the Italian island Elba using long-time ground-based LIDAR and photogrammetric data by an UAV

Cited by 6 publications

References 39 publications

On the Link Between External Forcings and Slope Instabilities in the Piton de la Fournaise Summit Crater, Reunion Island

On the Link Between External Forcings and Slope Instabilities in the Piton de la Fournaise Summit Crater, Reunion Island

Gully Erosion Mapping and Monitoring at Multiple Scales Based on Multi-Source Remote Sensing Data of the Sancha River Catchment, Northeast China

A review of UAV monitoring in mining areas: current status and future perspectives

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