Aspects of Cave Data Use in a GIS

Albert, Gáspár

doi:10.5772/intechopen.68833

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…Furthermore, the traditional metergrid mapping method is unusable if the bonebed is TABLE 1. The main functionalities of a modular GIS constructed for spatial analysis (Albert, 2017).…”

Section: Measurement Processes At the Sitementioning

confidence: 99%

Mapping the past: GIS and intrasite spatial analyses of fossil deposits in paleontological sites and their applications in taxonomy, taphonomy and paleoecology

Albert

Botfalvai

Ősi

2018

Palaeontol Electron

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At paleontological excavations, the use of digital surveying tools is becoming more frequent to measure the geographical location of specimens. This technology filtrates into the discipline of paleontology from archaeology, where the mapping methodology is quite similar, and the GIS as a standard tool for analysis is more widespread. The result of such a survey is a geodatabase, which forms the basis of subsequent analyses. The workflow is represented as the: 1) surveying, 2) database building, and 3) spatial analysis creating maps or 3D models. The presented methodological paper describes the details of the workflow, explaining the best practices and highlighting those issues which are necessary to be targeted even on the field. The methods tackle the optimal database structure, the spatial querying, which is managed from simple data table formats, and the 3D modelling. Explanations for these topics are given throughout specific programs; however, the tasks are also described generally enabling the reader to apply the described method to other programs. The data structure is explained through Excel worksheets, and for the analysis, an Excel-based macro script was developed, which is published as a supplementary material of this paper. Complex spatial analyses and visualization were done with Jewel Suite, a geological 3D modelling application. Demonstrating the workflow, three types of taphonomical inquiries are discussed using the surveyed materials of the Santonian dinosaur bed at the Iharkút site (Hungary). This technique is easily applied and becomes an important tool to obtain more precise taxonomical, taphonomical, and paleoecological interpretations in fossil excavations.

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“…Furthermore, the traditional metergrid mapping method is unusable if the bonebed is TABLE 1. The main functionalities of a modular GIS constructed for spatial analysis (Albert, 2017).…”

Section: Measurement Processes At the Sitementioning

confidence: 99%

Mapping the past: GIS and intrasite spatial analyses of fossil deposits in paleontological sites and their applications in taxonomy, taphonomy and paleoecology

Albert

Botfalvai

Ősi

2018

Palaeontol Electron

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“…A felmérés végrehajtása során a hagyományos huzagolásos módszer mellett ma már a mindennapok gyakorlatává vált a mérőállomások, lézerszkennerek és UAV-ok alkalmazása is, amennyiben használatukat a barlang morfológiája lehetővé teszi (Hegedűs-Szabó 2014, Eszterhás-Tarsoly 2015. Amíg a megelőző évtizedekben főleg hagyományos, sok esetben egyszerűsített síkbeli ábrázolások készültek a barlangokról (alaprajz, kiterített hossz-szelvény, keresztmetszetek), addig mára a modern technológia alkalmazása lehetővé tette az üregek valósághű, térben történő megjelenítését adatbázis-szemléletben, azaz a különböző tudományterületek által igényelt adatok tárolásával (Albert 2017). Hazai és nemzetközi téren is alkalmazásra kerültek a földi lézerszkennerek a barlangok felmérése során; és ha csak a magyarországi példákat nézzük, akkor mára már számos idegenforgalmilag is jelentős barlangunk rendelkezik ilyen felmérésből származó 3D-s modellel: a Pál-völgyi-barlang, a Baradla egyes szakaszai, a Béke-barlang, a Szemlőhegyi-barlang, az Abaligeti-barlang és a Kórház-barlang (Gede et al 2013, Idrees -Pradhan 2016.…”

Section: Bevezetésunclassified

A Szentgáli-kőlik felmérése lézerszkenneléssel

Tarsoly¹,

Bekk²

2019

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This paper deals with the surveying and mapping of the Szentgáli-kőlik, which is the largest dolomite cave in Hungary (length: 420 m, vertical extent: 43 m). For the surveying we used a Leica ScanStationC10, four Leica-targets, 80 fluorescent wooden cubes, many traditional tripods and pillar-tripods of the kind Wild. We measured altogether on 38 stations. We did not measured separately each control points (this accelerated the field measurements), so that is why we could fitting the stations only manually by the pre-processing, what we have managed with the Leica Cyclon 9.1 software. The accuracy of fitting was under 10 centimetres, which was satisfactory for our purposes (cave surveying do not need a strict accuracy). For the further processing we used a Point Cloud CAD 2010 and the AutoCAD software. We prepared a ground plan, cross-sections and a section, using the official UIS (International Union of Speleology) list of cave symbols and mapping rules.

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“…Cave surveying is an essential process for numerous purposes such as cave mapping, 3D modeling, examination of cave morphology, and investigation of cave stability (Albert 2017). Since caves are subsurface formations, it is very difficult to measure caves in detail using classical methods, due to the irregular geometric shapes, high ceilings, and insufficient lighting conditions in caves (Lindgren, Galeazzi 2013).…”

Section: Introductionmentioning

confidence: 99%

3D data integration for geo-located cave mapping based on unmanned aerial vehicle and terrestrial laser scanner data

Çömert¹,

Özdemir²,

Bilgilioğlu³

et al. 2023

Baltica

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The Akçakale cave is a significant natural and cultural heritage site in the Black Sea region of eastern Turkey. The complex geometry and difficult-to-access areas of the cave have made the use of traditional mapping methods challenging. To overcome these limitations, this study utilized TLS and UAV technology to produce highly accurate 2D and 3D data for cave management and risk assessment purposes. The TLS system was used to create a detailed 3D point cloud of the cave interior, while the UAV system generated a 3D model of the surface topography outside the cave. The two sets of data were combined in the GIS environment using a geodetic network established in the study area, providing a common geodetic reference system for both TLS and UAV data. The study found that the cave area is 13,750 m2, which is smaller than the area of 18,000 m2 that was previously estimated using conventional measurement methods. The volume and ceiling heights of the cave were calculated using the elevation models generated from TLS point cloud data. The 3D point cloud data were also used to map dripstone locations on the floor and ceiling of the cave, and the boundaries of rock blocks on the ground were precisely determined. The study identified potential risks associated with the cave, particularly the risk of rockfall in the source rock areas around the cave entrance and the southern part of the cave. The nearest building to the cave is approximately 35 meters away, and all the buildings in the area are less than 300 meters from the cave. In the event of the cave collapse, the buildings in the southern part of the cave are at risk of rockfall. This study demonstrates the effectiveness of combining data from TLS and UAV systems to generate broad and sensitive cave mapping and risk assessment data, which are critical for cave management and safety. The collected data can be used for cave stability investigations and rockfall risk assessments. This study provides a foundation for future explorations of the Akcakale cave and highlights the potential for modern surveying techniques to enhance our understanding of complex geological structures such as caves.

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Aspects of Cave Data Use in a GIS

Cited by 7 publications

References 13 publications

Mapping the past: GIS and intrasite spatial analyses of fossil deposits in paleontological sites and their applications in taxonomy, taphonomy and paleoecology

Mapping the past: GIS and intrasite spatial analyses of fossil deposits in paleontological sites and their applications in taxonomy, taphonomy and paleoecology

A Szentgáli-kőlik felmérése lézerszkenneléssel

3D data integration for geo-located cave mapping based on unmanned aerial vehicle and terrestrial laser scanner data

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