Integrated Application of GIS Technology and Terrestrial Laser Scanning for the Investigation of Landslide Bodies (on the Example of a Landslide in the Oktyabrsky Gorge of the City of Saratov)

We present a new educational course "Creation of virtual geological outcrops of the outskirts of Lviv" for students of geological specialties. Discipline "Creation of virtual geological outcrops of the outskirts of Lviv" is a selective discipline for students of 2-3 courses of various specialties, which is lectured in the amount of 3 credits (according to ECTS). The course is 32 hours of classroom classes, 16 hours of these of lectures, the rest 16 hours of practical classes and 58 hours of self-study.The course is in three parts. First is preparatory ones. Students get acquainted with the geological structure of Lviv, prepare equipment for field work.The field stage (the second part of the course) includes the survey of 3-4 geological objects around Lviv. These can be natural outcrops, quarries. A particularly valuable object for learning is the Honey Cave, located within the city limits. Depending on the object, we choose the type of survey&#8212; digital photogrammetry or terrestrial laser scanning. Each group of 4 students explores 2 objects.The third cameral period includes field data processing. Students create 3D geological models and perform various measurements on them. Students compare different types of models to choose the best one. At this stage, students use a variety of software available in institutions. The final stage of the course is the preparation of a report and passing the exam.The project war partly financed by EGU HE Teaching Award.

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THE USE OF TERRESTRIAL LASER SCANNING AND GIS TECHNOLOGY IN THE STUDY OF SOIL EROSION

17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing ◽

10.5593/sgem2017/23/s11.098 ◽

2017 ◽

Author(s):

Gabriel BADESCU

Keyword(s):

Soil Erosion ◽

Laser Scanning ◽

Terrestrial Laser Scanning ◽

Gis Technology

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Study of the Application of Terrestrial Laser Scanning for Identification of Pathologies in Concrete Structures

10.21203/rs.3.rs-1001215/v1 ◽

2021 ◽

Author(s):

Sergio Orlando Antoun Netto ◽

Lucas Pires Chagas Ferreira de Carvalho ◽

Ana Waldila de Queiroz Ramiro Reis ◽

Leonardo Vieira Barbalho ◽

Lucas de Campos Rodrigues

Keyword(s):

Point Cloud ◽

Laser Scanning ◽

Three Dimensional ◽

Laser Scanner ◽

Concrete Structures ◽

Terrestrial Laser Scanning ◽

Color Data ◽

Definition Of ◽

The City

Abstract Laser scanning enhances classic field surveys. The terrestrial laser scanner is a versatile device with applications in various areas of knowledge, which uses remote sensing fundamentals to determine point coordinates. It is a remote, active, noninvasive, nondestructive and high-precision technique to capture reality that records from thousands to millions of points per second in a detailed representation of the situation called a point cloud. The surveys are performed along the object of interest in a process called scanning, which has as its gross product a dense cloud of three-dimensional points of the scanned object. This point cloud stores information about the object’s geometry, return pulse intensity, and point color data. As a way of extending the uses of terrestrial laser scanning, this work studies the application of this method in civil engineering, through the identification of pathologies in reinforced concrete structures, aiming to show how geoinformation can be employed in this area. To this end, a case study of the São Cristóvão Viaduct was conducted in the city of Rio de Janeiro. This study included definition of the site of analysis; planning and execution of the field survey to collect raw data; processing of the point cloud; and generation of a three-dimensional surface for global visualization of the structure and identification of pathological manifestations and the regions where they were observed. Concrete structures in general are affected by various external factors, such as weather and anthropogenic actions, which contribute to their wear.

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3D modelling of beach topography changes caused by the tombolo phenomenon using terrestrial laser scanning (TLS) and unmanned aerial vehicle (UAV) photogrammetry on the example of the city of Sopot

Geo-Marine Letters ◽

10.1007/s00367-020-00665-5 ◽

2020 ◽

Vol 40 (5) ◽

pp. 675-685 ◽

Cited By ~ 1

Author(s):

Cezary Specht ◽

Pawel S. Dabrowski ◽

Mariusz Specht

Keyword(s):

Unmanned Aerial Vehicle ◽

Cross Sections ◽

Laser Scanning ◽

Morphological Changes ◽

Terrestrial Laser Scanning ◽

Point Clouds ◽

3D Modelling ◽

Sea Bottom ◽

Aerial Vehicle ◽

The City

Abstract In 2011, a yacht marina was built in Sopot (the largest holiday resort in Poland), which initiated the formation of a local shallowing of the bottom related to the tombolo effect. The building of the marina led to disturbances in the transmission of bottom deposits along the coast, which resulted from waves and the shift of the beach coastline by approx. 50 m towards the sea. Its effects include progressive morphological changes in the shore and the sea bottom, which will lead to the formation of a peninsula between the shore and the marina in the future. This paper presents the results of a comparative analysis of the accuracy of 3D modelling of the tombolo phenomenon in the onshore part of the beach using both point clouds obtained by terrestrial laser scanning methods and photogrammetric methods based on unmanned aerial vehicle photographs. The methods subjected to assessment include both those for land modelling and for determining the coastline course and its changes. The analysis results prove the existence of sub-metre differences in the imaged relief and the coastline course, which were demonstrated using an analysis of land cross-sections. The possibilities and limitations of both methods are demonstrated as well.

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Use of Terrestrial Laser Scanning for Assessment of Tank Aluminum Roofs Stress-Strain State

Occupational Safety in Industry ◽

10.24000/0409-2961-2017-10-11-17 ◽

2017 ◽

pp. 11-17

Author(s):

G.G. Vasilyev ◽

◽

I.A. Leonovich ◽

A.P. Salnikov ◽

◽

...

Keyword(s):

Laser Scanning ◽

Strain State ◽

Terrestrial Laser Scanning ◽

Stress Strain ◽

Stress Strain State

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MONITORING BLUFF EROSION RATES USING TERRESTRIAL LASER SCANNING AND STRUCTURE-FROM-MOTION PHOTOGRAMMETRY ON MINNESOTA'S NORTH SHORE STREAMS

10.1130/abs/2017am-305956 ◽

2017 ◽

Author(s):

Elizabeth R. Brown ◽

◽

Karen B. Gran

Keyword(s):

Structure From Motion ◽

Laser Scanning ◽

Terrestrial Laser Scanning ◽

Erosion Rates ◽

North Shore ◽

Bluff Erosion

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MONITORING BLUFF EROSION RATES USING TERRESTRIAL LASER SCANNING AND STRUCTURE-FROM-MOTION PHOTOGRAMMETRY ON MINNESOTA'S NORTH SHORE STREAMS

10.1130/abs/2018nc-312932 ◽

2018 ◽

Author(s):

Elizabeth R. Brown ◽

◽

Karen B. Gran

Keyword(s):

Structure From Motion ◽

Laser Scanning ◽

Terrestrial Laser Scanning ◽

Erosion Rates ◽

North Shore ◽

Bluff Erosion

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Melite Civitas Romana in 3D: Virtualization Project of the Archaeological Park and Museum of the Domus Romana of Rabat, Malta

Open Archaeology ◽

10.1515/opar-2020-0126 ◽

2021 ◽

Vol 7 (1) ◽

pp. 51-83

Author(s):

Davide Tanasi ◽

Stephan Hassam ◽

Kaitlyn Kingsland ◽

Paolo Trapani ◽

Matthew King ◽

...

Keyword(s):

Laser Scanning ◽

Structured Light ◽

Terrestrial Laser Scanning ◽

Archaeological Site ◽

South Florida ◽

Virtual Museum ◽

Current State ◽

Structured Light Scanning ◽

The University ◽

Archaeological Excavations

Abstract The archaeological site of the Domus Romana in Rabat, Malta was excavated almost 100 years ago yielding artefacts from the various phases of the site. The Melite Civitas Romana project was designed to investigate the domus, which may have been the home of a Roman Senator, and its many phases of use. Pending planned archaeological excavations designed to investigate the various phases of the site, a team from the Institute for Digital Exploration from the University of South Florida carried out a digitization campaign in the summer of 2019 using terrestrial laser scanning and aerial digital photogrammetry to document the current state of the site to provide a baseline of documentation and plan the coming excavations. In parallel, structured light scanning and photogrammetry were used to digitize 128 artefacts in the museum of the Domus Romana to aid in off-site research and create a virtual museum platform for global dissemination.

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Terrestrial Laser Scanning for Vegetation Analyses with a Special Focus on Savannas

Remote Sensing ◽

10.3390/rs13030507 ◽

2021 ◽

Vol 13 (3) ◽

pp. 507

Author(s):

Tasiyiwa Priscilla Muumbe ◽

Jussi Baade ◽

Jenia Singh ◽

Christiane Schmullius ◽

Christian Thau

Keyword(s):

Remote Sensing ◽

Vegetation Structure ◽

Laser Scanning ◽

Spatial Scales ◽

Terrestrial Laser Scanning ◽

Point Clouds ◽

Parameter Extraction ◽

Airborne Lidar ◽

Special Focus ◽

Vegetation Parameter

Savannas are heterogeneous ecosystems, composed of varied spatial combinations and proportions of woody and herbaceous vegetation. Most field-based inventory and remote sensing methods fail to account for the lower stratum vegetation (i.e., shrubs and grasses), and are thus underrepresenting the carbon storage potential of savanna ecosystems. For detailed analyses at the local scale, Terrestrial Laser Scanning (TLS) has proven to be a promising remote sensing technology over the past decade. Accordingly, several review articles already exist on the use of TLS for characterizing 3D vegetation structure. However, a gap exists on the spatial concentrations of TLS studies according to biome for accurate vegetation structure estimation. A comprehensive review was conducted through a meta-analysis of 113 relevant research articles using 18 attributes. The review covered a range of aspects, including the global distribution of TLS studies, parameters retrieved from TLS point clouds and retrieval methods. The review also examined the relationship between the TLS retrieval method and the overall accuracy in parameter extraction. To date, TLS has mainly been used to characterize vegetation in temperate, boreal/taiga and tropical forests, with only little emphasis on savannas. TLS studies in the savanna focused on the extraction of very few vegetation parameters (e.g., DBH and height) and did not consider the shrub contribution to the overall Above Ground Biomass (AGB). Future work should therefore focus on developing new and adjusting existing algorithms for vegetation parameter extraction in the savanna biome, improving predictive AGB models through 3D reconstructions of savanna trees and shrubs as well as quantifying AGB change through the application of multi-temporal TLS. The integration of data from various sources and platforms e.g., TLS with airborne LiDAR is recommended for improved vegetation parameter extraction (including AGB) at larger spatial scales. The review highlights the huge potential of TLS for accurate savanna vegetation extraction by discussing TLS opportunities, challenges and potential future research in the savanna biome.

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