High-resolution digital outcrop model of the faults, fractures, and stratigraphy of the Agardhfjellet Formation cap rock shales at Konusdalen West, central Spitsbergen
Structure-from-motion (SfM) photogrammetry has become an important tool for the digitalisation of outcrops as digital outcrop models (DOMs). DOMs facilitate the mapping of stratigraphy and discontinuous structures like folds, faults, and fractures from the centimetre to kilometre scale. With pristin...
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Copernicus Publications
2024
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00071838 2024-04-14T08:08:28+00:00 High-resolution digital outcrop model of the faults, fractures, and stratigraphy of the Agardhfjellet Formation cap rock shales at Konusdalen West, central Spitsbergen Betlem, Peter Birchall, Thomas Lord, Gareth Oldfield, Simon Nakken, Lise Ogata, Kei Senger, Kim 2024-02 electronic https://doi.org/10.5194/essd-16-985-2024 https://noa.gwlb.de/receive/cop_mods_00071838 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070090/essd-16-985-2024.pdf https://essd.copernicus.org/articles/16/985/2024/essd-16-985-2024.pdf eng eng Copernicus Publications Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-16-985-2024 https://noa.gwlb.de/receive/cop_mods_00071838 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070090/essd-16-985-2024.pdf https://essd.copernicus.org/articles/16/985/2024/essd-16-985-2024.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2024 ftnonlinearchiv https://doi.org/10.5194/essd-16-985-2024 2024-03-19T12:18:16Z Structure-from-motion (SfM) photogrammetry has become an important tool for the digitalisation of outcrops as digital outcrop models (DOMs). DOMs facilitate the mapping of stratigraphy and discontinuous structures like folds, faults, and fractures from the centimetre to kilometre scale. With pristine, treeless exposures, the outcropping strata in Svalbard, Arctic Norway, hold exceptional potential for analogue studies and are ideally suited for the acquisition of high-resolution DOMs. Here, we present the acquisition, processing, and integration of the Konusdalen West digital model data set, comprising both DOM and derived digital terrain model (DTM) data. Drone-based image acquisition took place over 2 weeks in July and August 2020. The Konusdalen West DOM and DTM cover a 0.12 km2 area and span a 170 m elevation difference. The DOM covers the upper two-thirds of the mudstone-dominated Late Jurassic–Early Cretaceous Agardhfjellet Formation. The Agardhfjellet Formation and its time equivalents are regional cap rocks for CO2 sequestration and petroleum accumulations on the Norwegian Continental Shelf. A total of 15 differential GNSS control points were used to georeference and quality assure the digital data assets, 5 of which function as reference checkpoints. SfM processing of 5512 acquired images resulted in high-confidence, centimetre-scale resolution point clouds, textured mesh (DOM), tiled model, orthomosaics, and a DTM. The confidence-filtered dense cloud features an average inter-point distance of 1.57 cm and has an average point density of 3824.9 points per metre. The five checkpoints feature root mean square errors of 2.0 cm in X, 1.3 cm in Y, 5.2 cm in Z, and 5.7 cm in XYZ. Increased confidences and densities are present along the western flank of the Konusdalen West outcrop, where a fault fracture network in mudstone-dominated strata is best exposed and photographed most extensively. Top and side view orthomosaics feature maximum resolutions of 8 mm per pixel, enabling the mapping of faults, formation ... Article in Journal/Newspaper Arctic Svalbard Spitsbergen Niedersächsisches Online-Archiv NOA Agardhfjellet ENVELOPE(18.833,18.833,78.083,78.083) Arctic Konusdalen ENVELOPE(15.917,15.917,78.333,78.333) Norway Resolution Point ENVELOPE(-27.117,-27.117,-59.433,-59.433) Svalbard Earth System Science Data 16 2 985 1006 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Betlem, Peter Birchall, Thomas Lord, Gareth Oldfield, Simon Nakken, Lise Ogata, Kei Senger, Kim High-resolution digital outcrop model of the faults, fractures, and stratigraphy of the Agardhfjellet Formation cap rock shales at Konusdalen West, central Spitsbergen |
topic_facet |
article Verlagsveröffentlichung |
description |
Structure-from-motion (SfM) photogrammetry has become an important tool for the digitalisation of outcrops as digital outcrop models (DOMs). DOMs facilitate the mapping of stratigraphy and discontinuous structures like folds, faults, and fractures from the centimetre to kilometre scale. With pristine, treeless exposures, the outcropping strata in Svalbard, Arctic Norway, hold exceptional potential for analogue studies and are ideally suited for the acquisition of high-resolution DOMs. Here, we present the acquisition, processing, and integration of the Konusdalen West digital model data set, comprising both DOM and derived digital terrain model (DTM) data. Drone-based image acquisition took place over 2 weeks in July and August 2020. The Konusdalen West DOM and DTM cover a 0.12 km2 area and span a 170 m elevation difference. The DOM covers the upper two-thirds of the mudstone-dominated Late Jurassic–Early Cretaceous Agardhfjellet Formation. The Agardhfjellet Formation and its time equivalents are regional cap rocks for CO2 sequestration and petroleum accumulations on the Norwegian Continental Shelf. A total of 15 differential GNSS control points were used to georeference and quality assure the digital data assets, 5 of which function as reference checkpoints. SfM processing of 5512 acquired images resulted in high-confidence, centimetre-scale resolution point clouds, textured mesh (DOM), tiled model, orthomosaics, and a DTM. The confidence-filtered dense cloud features an average inter-point distance of 1.57 cm and has an average point density of 3824.9 points per metre. The five checkpoints feature root mean square errors of 2.0 cm in X, 1.3 cm in Y, 5.2 cm in Z, and 5.7 cm in XYZ. Increased confidences and densities are present along the western flank of the Konusdalen West outcrop, where a fault fracture network in mudstone-dominated strata is best exposed and photographed most extensively. Top and side view orthomosaics feature maximum resolutions of 8 mm per pixel, enabling the mapping of faults, formation ... |
format |
Article in Journal/Newspaper |
author |
Betlem, Peter Birchall, Thomas Lord, Gareth Oldfield, Simon Nakken, Lise Ogata, Kei Senger, Kim |
author_facet |
Betlem, Peter Birchall, Thomas Lord, Gareth Oldfield, Simon Nakken, Lise Ogata, Kei Senger, Kim |
author_sort |
Betlem, Peter |
title |
High-resolution digital outcrop model of the faults, fractures, and stratigraphy of the Agardhfjellet Formation cap rock shales at Konusdalen West, central Spitsbergen |
title_short |
High-resolution digital outcrop model of the faults, fractures, and stratigraphy of the Agardhfjellet Formation cap rock shales at Konusdalen West, central Spitsbergen |
title_full |
High-resolution digital outcrop model of the faults, fractures, and stratigraphy of the Agardhfjellet Formation cap rock shales at Konusdalen West, central Spitsbergen |
title_fullStr |
High-resolution digital outcrop model of the faults, fractures, and stratigraphy of the Agardhfjellet Formation cap rock shales at Konusdalen West, central Spitsbergen |
title_full_unstemmed |
High-resolution digital outcrop model of the faults, fractures, and stratigraphy of the Agardhfjellet Formation cap rock shales at Konusdalen West, central Spitsbergen |
title_sort |
high-resolution digital outcrop model of the faults, fractures, and stratigraphy of the agardhfjellet formation cap rock shales at konusdalen west, central spitsbergen |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/essd-16-985-2024 https://noa.gwlb.de/receive/cop_mods_00071838 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070090/essd-16-985-2024.pdf https://essd.copernicus.org/articles/16/985/2024/essd-16-985-2024.pdf |
long_lat |
ENVELOPE(18.833,18.833,78.083,78.083) ENVELOPE(15.917,15.917,78.333,78.333) ENVELOPE(-27.117,-27.117,-59.433,-59.433) |
geographic |
Agardhfjellet Arctic Konusdalen Norway Resolution Point Svalbard |
geographic_facet |
Agardhfjellet Arctic Konusdalen Norway Resolution Point Svalbard |
genre |
Arctic Svalbard Spitsbergen |
genre_facet |
Arctic Svalbard Spitsbergen |
op_relation |
Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-16-985-2024 https://noa.gwlb.de/receive/cop_mods_00071838 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070090/essd-16-985-2024.pdf https://essd.copernicus.org/articles/16/985/2024/essd-16-985-2024.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/essd-16-985-2024 |
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Earth System Science Data |
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16 |
container_issue |
2 |
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1006 |
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