Similarity and Change Detection of Relief in a Proglacial River Valley (Scott River, SW Svalbard)
This study focuses on contemporary geomorphic changes in the proglacial valley floor of the Scott River catchment (northwest of Wedel Jarlsberg Land, southwestern Spitsbergen). The similarity and variability of landforms along the entire 3.3 km length of the unglaciated valley floor was assessed usi...
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Online Access: | https://doi.org/10.3390/rs15205066 https://doaj.org/article/6f90d68fb17644c08ff27e81e0754533 |
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ftdoajarticles:oai:doaj.org/article:6f90d68fb17644c08ff27e81e0754533 2023-11-12T04:27:05+01:00 Similarity and Change Detection of Relief in a Proglacial River Valley (Scott River, SW Svalbard) Leszek Gawrysiak Waldemar Kociuba 2023-10-01T00:00:00Z https://doi.org/10.3390/rs15205066 https://doaj.org/article/6f90d68fb17644c08ff27e81e0754533 EN eng MDPI AG https://www.mdpi.com/2072-4292/15/20/5066 https://doaj.org/toc/2072-4292 doi:10.3390/rs15205066 2072-4292 https://doaj.org/article/6f90d68fb17644c08ff27e81e0754533 Remote Sensing, Vol 15, Iss 5066, p 5066 (2023) TLS scanning high-resolution DTM geomorphons GeoPAT2 relief segmentation clustering Science Q article 2023 ftdoajarticles https://doi.org/10.3390/rs15205066 2023-10-29T00:35:45Z This study focuses on contemporary geomorphic changes in the proglacial valley floor of the Scott River catchment (northwest of Wedel Jarlsberg Land, southwestern Spitsbergen). The similarity and variability of landforms along the entire 3.3 km length of the unglaciated valley floor was assessed using precision terrestrial laser scanning (TLS) measurements made in July/August 2010–2013. Digital terrain models (DTMs) were generated from the high-resolution TLS survey data, followed by a geomorphon map, which was then used for a similarity and changes of morphology analysis performed with GeoPAT2 software. The study revealed a large spatial variation of contemporary processes shaping the valley floor and changes in its morphology. Their spatial distribution relates to the geologically determined split of the valley floor into three morphological zones separated by gorges. The upper gorge cuts the terminal moraine rampart, which limits the uppermost section of the valley floor, which is up to 700 m wide and is occupied by the outwash plain. The study showed that this is the area characterised by the greatest dynamics of contemporary geomorphic processes and relief changes. The similarity index value here is characterised by a large spatial variation that in some places reaches values close to 0. In the middle section stretching between the upper gorge (cutting the terminal moraine) and the lower gorge (cutting the elevated marine terraces), a much smaller variability of processes and landforms is observed, and the found changes of the valley floor relief mainly include the area of braided channel activity. Similarity index values in this zone do not fall below 0.65. The lowest section, the mouth of the alluvial fan, on the other hand, is characterised by considerable spatial differentiation. The southern part of the fan is stable, while the northern part is intensively re-shaped and has a similarity index that locally falls below 0.5. The most dynamic changes are found within the active channel system along the ... Article in Journal/Newspaper Svalbard Wedel Jarlsberg Land Spitsbergen Directory of Open Access Journals: DOAJ Articles Remote Sensing 15 20 5066 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
TLS scanning high-resolution DTM geomorphons GeoPAT2 relief segmentation clustering Science Q |
spellingShingle |
TLS scanning high-resolution DTM geomorphons GeoPAT2 relief segmentation clustering Science Q Leszek Gawrysiak Waldemar Kociuba Similarity and Change Detection of Relief in a Proglacial River Valley (Scott River, SW Svalbard) |
topic_facet |
TLS scanning high-resolution DTM geomorphons GeoPAT2 relief segmentation clustering Science Q |
description |
This study focuses on contemporary geomorphic changes in the proglacial valley floor of the Scott River catchment (northwest of Wedel Jarlsberg Land, southwestern Spitsbergen). The similarity and variability of landforms along the entire 3.3 km length of the unglaciated valley floor was assessed using precision terrestrial laser scanning (TLS) measurements made in July/August 2010–2013. Digital terrain models (DTMs) were generated from the high-resolution TLS survey data, followed by a geomorphon map, which was then used for a similarity and changes of morphology analysis performed with GeoPAT2 software. The study revealed a large spatial variation of contemporary processes shaping the valley floor and changes in its morphology. Their spatial distribution relates to the geologically determined split of the valley floor into three morphological zones separated by gorges. The upper gorge cuts the terminal moraine rampart, which limits the uppermost section of the valley floor, which is up to 700 m wide and is occupied by the outwash plain. The study showed that this is the area characterised by the greatest dynamics of contemporary geomorphic processes and relief changes. The similarity index value here is characterised by a large spatial variation that in some places reaches values close to 0. In the middle section stretching between the upper gorge (cutting the terminal moraine) and the lower gorge (cutting the elevated marine terraces), a much smaller variability of processes and landforms is observed, and the found changes of the valley floor relief mainly include the area of braided channel activity. Similarity index values in this zone do not fall below 0.65. The lowest section, the mouth of the alluvial fan, on the other hand, is characterised by considerable spatial differentiation. The southern part of the fan is stable, while the northern part is intensively re-shaped and has a similarity index that locally falls below 0.5. The most dynamic changes are found within the active channel system along the ... |
format |
Article in Journal/Newspaper |
author |
Leszek Gawrysiak Waldemar Kociuba |
author_facet |
Leszek Gawrysiak Waldemar Kociuba |
author_sort |
Leszek Gawrysiak |
title |
Similarity and Change Detection of Relief in a Proglacial River Valley (Scott River, SW Svalbard) |
title_short |
Similarity and Change Detection of Relief in a Proglacial River Valley (Scott River, SW Svalbard) |
title_full |
Similarity and Change Detection of Relief in a Proglacial River Valley (Scott River, SW Svalbard) |
title_fullStr |
Similarity and Change Detection of Relief in a Proglacial River Valley (Scott River, SW Svalbard) |
title_full_unstemmed |
Similarity and Change Detection of Relief in a Proglacial River Valley (Scott River, SW Svalbard) |
title_sort |
similarity and change detection of relief in a proglacial river valley (scott river, sw svalbard) |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/rs15205066 https://doaj.org/article/6f90d68fb17644c08ff27e81e0754533 |
genre |
Svalbard Wedel Jarlsberg Land Spitsbergen |
genre_facet |
Svalbard Wedel Jarlsberg Land Spitsbergen |
op_source |
Remote Sensing, Vol 15, Iss 5066, p 5066 (2023) |
op_relation |
https://www.mdpi.com/2072-4292/15/20/5066 https://doaj.org/toc/2072-4292 doi:10.3390/rs15205066 2072-4292 https://doaj.org/article/6f90d68fb17644c08ff27e81e0754533 |
op_doi |
https://doi.org/10.3390/rs15205066 |
container_title |
Remote Sensing |
container_volume |
15 |
container_issue |
20 |
container_start_page |
5066 |
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