The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard)
This study, which was conducted between 2010 and 2013, presents the results of direct, continuous measurements of the bedload transport rate at the mouth section of the Scott River catchment (NW part of Wedel-Jarlsberg Land, Svalbard). In four consecutive melt seasons, the bedload flux was analyzed...
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MDPI AG
2021
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Online Access: | https://doi.org/10.3390/hydrology8040173 https://doaj.org/article/f3735c10d8c1413a9970149b0d539e13 |
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ftdoajarticles:oai:doaj.org/article:f3735c10d8c1413a9970149b0d539e13 2023-05-15T18:29:43+02:00 The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) Waldemar Kociuba 2021-11-01T00:00:00Z https://doi.org/10.3390/hydrology8040173 https://doaj.org/article/f3735c10d8c1413a9970149b0d539e13 EN eng MDPI AG https://www.mdpi.com/2306-5338/8/4/173 https://doaj.org/toc/2306-5338 doi:10.3390/hydrology8040173 2306-5338 https://doaj.org/article/f3735c10d8c1413a9970149b0d539e13 Hydrology, Vol 8, Iss 173, p 173 (2021) bedload sampling bedload flux river bedload trap proglacial gravel-bed river sediment budgeting Svalbard Science Q article 2021 ftdoajarticles https://doi.org/10.3390/hydrology8040173 2022-12-31T16:26:00Z This study, which was conducted between 2010 and 2013, presents the results of direct, continuous measurements of the bedload transport rate at the mouth section of the Scott River catchment (NW part of Wedel-Jarlsberg Land, Svalbard). In four consecutive melt seasons, the bedload flux was analyzed at two cross-sections located in the lower reaches of the gravel-bed proglacial river. The transported bedload was measured using two sets of River Bedload Traps (RBTs). Over the course of 130 simultaneous measurement days, a total of 930 bedload samples were collected. During this period, the river discharged about 1.32 t of bedload through cross-section I ( XS I ), located at the foot of the alluvial fan, and 0.99 t through cross-section II ( XS II ), located at the river mouth running into the fjord. A comparison of the bedload flux showed a distinctive disproportion between cross-sections. Specifically, the average daily bedload flux Q B was 130 kg day −1 ( XS I ) and 81 kg day −1 ( XS II ) at the individual cross-profiles. The lower bedload fluxes that were recorded at specified periods in XS II , which closed the catchment at the river mouth from the alluvial cone, indicated an active role of aggradation processes. Approximately 40% of all transported bedload was stored at the alluvial fan, mostly in the active channel zone. However, comparative Geomorphic Change Detection (GCD) analyses of the alluvial fan, which were performed over the period between August 2010 and August 2013, indicated a general lowering of the surface (erosion). It can be assumed that the melt season’s average flows in the active channel zone led to a greater deposition of bedload particles than what was discharged with high intensity during floods (especially the bankfull stage, effectively reshaping the whole surface of the alluvial fan). This study documents that the intensity of bedload flux was determined by the frequency of floods. Notably, the highest daily rates recorded in successive seasons accounted for 12–30% of the total ... Article in Journal/Newspaper Svalbard Wedel Jarlsberg Land Directory of Open Access Journals: DOAJ Articles Scott River ENVELOPE(-103.284,-103.284,56.267,56.267) Svalbard Wedel Jarlsberg Land ENVELOPE(15.362,15.362,77.201,77.201) Wedel-Jarlsberg ENVELOPE(-165.133,-165.133,-85.650,-85.650) Hydrology 8 4 173 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
bedload sampling bedload flux river bedload trap proglacial gravel-bed river sediment budgeting Svalbard Science Q |
spellingShingle |
bedload sampling bedload flux river bedload trap proglacial gravel-bed river sediment budgeting Svalbard Science Q Waldemar Kociuba The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) |
topic_facet |
bedload sampling bedload flux river bedload trap proglacial gravel-bed river sediment budgeting Svalbard Science Q |
description |
This study, which was conducted between 2010 and 2013, presents the results of direct, continuous measurements of the bedload transport rate at the mouth section of the Scott River catchment (NW part of Wedel-Jarlsberg Land, Svalbard). In four consecutive melt seasons, the bedload flux was analyzed at two cross-sections located in the lower reaches of the gravel-bed proglacial river. The transported bedload was measured using two sets of River Bedload Traps (RBTs). Over the course of 130 simultaneous measurement days, a total of 930 bedload samples were collected. During this period, the river discharged about 1.32 t of bedload through cross-section I ( XS I ), located at the foot of the alluvial fan, and 0.99 t through cross-section II ( XS II ), located at the river mouth running into the fjord. A comparison of the bedload flux showed a distinctive disproportion between cross-sections. Specifically, the average daily bedload flux Q B was 130 kg day −1 ( XS I ) and 81 kg day −1 ( XS II ) at the individual cross-profiles. The lower bedload fluxes that were recorded at specified periods in XS II , which closed the catchment at the river mouth from the alluvial cone, indicated an active role of aggradation processes. Approximately 40% of all transported bedload was stored at the alluvial fan, mostly in the active channel zone. However, comparative Geomorphic Change Detection (GCD) analyses of the alluvial fan, which were performed over the period between August 2010 and August 2013, indicated a general lowering of the surface (erosion). It can be assumed that the melt season’s average flows in the active channel zone led to a greater deposition of bedload particles than what was discharged with high intensity during floods (especially the bankfull stage, effectively reshaping the whole surface of the alluvial fan). This study documents that the intensity of bedload flux was determined by the frequency of floods. Notably, the highest daily rates recorded in successive seasons accounted for 12–30% of the total ... |
format |
Article in Journal/Newspaper |
author |
Waldemar Kociuba |
author_facet |
Waldemar Kociuba |
author_sort |
Waldemar Kociuba |
title |
The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) |
title_short |
The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) |
title_full |
The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) |
title_fullStr |
The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) |
title_full_unstemmed |
The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) |
title_sort |
role of bedload transport in the development of a proglacial river alluvial fan (case study: scott river, southwest svalbard) |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/hydrology8040173 https://doaj.org/article/f3735c10d8c1413a9970149b0d539e13 |
long_lat |
ENVELOPE(-103.284,-103.284,56.267,56.267) ENVELOPE(15.362,15.362,77.201,77.201) ENVELOPE(-165.133,-165.133,-85.650,-85.650) |
geographic |
Scott River Svalbard Wedel Jarlsberg Land Wedel-Jarlsberg |
geographic_facet |
Scott River Svalbard Wedel Jarlsberg Land Wedel-Jarlsberg |
genre |
Svalbard Wedel Jarlsberg Land |
genre_facet |
Svalbard Wedel Jarlsberg Land |
op_source |
Hydrology, Vol 8, Iss 173, p 173 (2021) |
op_relation |
https://www.mdpi.com/2306-5338/8/4/173 https://doaj.org/toc/2306-5338 doi:10.3390/hydrology8040173 2306-5338 https://doaj.org/article/f3735c10d8c1413a9970149b0d539e13 |
op_doi |
https://doi.org/10.3390/hydrology8040173 |
container_title |
Hydrology |
container_volume |
8 |
container_issue |
4 |
container_start_page |
173 |
_version_ |
1766213046177366016 |