{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363388843418021760.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.3189/2015jog15j086"}},{"identifier":{"@type":"URI","@value":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000200270"}}],"dc:title":[{"@value":"Sedimentological characterization of Antarctic moraines using UAVs and Structure-from-Motion photogrammetry"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>In glacial environments particle-size analysis of moraines provides insights into clast origin, transport history, depositional mechanism and processes of reworking. Traditional methods for grain-size classification are labour-intensive, physically intrusive and are limited to patch-scale (1 m<jats:sup>2</jats:sup>) observation. We develop emerging, high-resolution ground- and unmanned aerial vehicle-based ‘Structure-from-Motion’ (UAV-SfM) photogrammetry to recover grain-size information across a moraine surface in the Heritage Range, Antarctica. SfM data products were benchmarked against equivalent datasets acquired using terrestrial laser scanning, and were found to be accurate to within 1.7 and 50 mm for patch- and site-scale modelling, respectively. Grain-size distributions were obtained through digital grain classification, or ‘photo-sieving’, of patch-scale SfM orthoimagery. Photo-sieved distributions were accurate to <2 mm compared to control distributions derived from dry-sieving. A relationship between patch-scale median grain size and the standard deviation of local surface elevations was applied to a site-scale UAV-SfM model to facilitate upscaling and the production of a spatially continuous map of the median grain size across a 0.3 km<jats:sup>2</jats:sup>area of moraine. This highly automated workflow for site-scale sedimentological characterization eliminates much of the subjectivity associated with traditional methods and forms a sound basis for subsequent glaciological process interpretation and analysis.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383388843418021762","@type":"Researcher","foaf:name":[{"@value":"Matthew J. Westoby"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843418021632","@type":"Researcher","foaf:name":[{"@value":"Stuart A. Dunning"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843418021764","@type":"Researcher","foaf:name":[{"@value":"John Woodward"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843418021633","@type":"Researcher","foaf:name":[{"@value":"Andrew S. Hein"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843418021763","@type":"Researcher","foaf:name":[{"@value":"Shasta M. Marrero"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843418021761","@type":"Researcher","foaf:name":[{"@value":"Kate Winter"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388843418021760","@type":"Researcher","foaf:name":[{"@value":"David E. Sugden"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00221430"},{"@type":"EISSN","@value":"17275652"}],"prism:publicationName":[{"@value":"Journal of Glaciology"}],"dc:publisher":[{"@value":"International Glaciological Society"}],"prism:publicationDate":"2015","prism:volume":"61","prism:number":"230","prism:startingPage":"1088","prism:endingPage":"1102"},"reviewed":"false","dc:rights":["http://creativecommons.org/licenses/by/4.0/"],"url":[{"@id":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000200270"}],"createdAt":"2015-11-28","modifiedAt":"2024-06-12","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1390282679214656640","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"南極における無人航空機（UAV）を用いた高解像度地形情報取得の試み"},{"@language":"en","@value":"Unmanned Aerial Vehicle (UAV)-based Survey in Antarctica for High-definition Topographic Measurements"},{"@language":"ja-Kana","@value":"ナンキョク ニ オケル ムジン コウクウキ(UAV)オ モチイタ コウカイゾウド チケイ ジョウホウ シュトク ノ ココロミ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390295181710106112","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Generation and Utility of a Digital Surface Model Based on Archived Aerial Photographs Taken by the Japanese Antarctic Research Expedition"},{"@language":"ja","@value":"日本南極地域観測隊アーカイブ空中写真を用いた数値表層モデル作成とその有用性"},{"@language":"ja-Kana","@value":"ニホン ナンキョク チイキ カンソクタイ アーカイブ クウチュウ シャシン オ モチイタ スウチ ヒョウソウ モデル サクセイ ト ソノ ユウヨウセイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390301684515177856","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Quality Assessment of Multiple UAV-SfM DEMs Derived for Impact Assessment of a Co-Seismic Avalanche in the Himalayas"}]},{"@id":"https://cir.nii.ac.jp/crid/2051151842050009600","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Spatial accuracy assessment of unmanned aerial vehicle-based structures from motion multi-view stereo photogrammetry for geomorphic observations in initiation zones of debris flows, Ohya landslide, Japan"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.3189/2015jog15j086"},{"@type":"CROSSREF","@value":"10.1186/s40645-020-00336-0_references_DOI_8UJlAtaeHg5DhKw20LuEztKMPjm"},{"@type":"CROSSREF","@value":"10.4157/grj.94.1_references_DOI_8UJlAtaeHg5DhKw20LuEztKMPjm"},{"@type":"CROSSREF","@value":"10.20965/jdr.2024.p0865_references_DOI_8UJlAtaeHg5DhKw20LuEztKMPjm"},{"@type":"CROSSREF","@value":"10.5026/jgeography.126.1_references_DOI_8UJlAtaeHg5DhKw20LuEztKMPjm"}]}