Effects of River Discharge and Sediment Load on Sediment Plume Behaviors in a Coastal Region: The Yukon River, Alaska and the Bering Sea
In the Bering Sea around and off the Yukon River delta, surface sediment plumes are markedly formed by glacier-melt and rainfall sediment runoffs of the Yukon River, Alaska, in June– September. The discharge and sediment load time series of the Yukon River were obtained at the lowest gauging station...
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ftdoajarticles:oai:doaj.org/article:97c8fe5a726d4b77aa8d374b2db36989 2023-05-15T15:43:29+02:00 Effects of River Discharge and Sediment Load on Sediment Plume Behaviors in a Coastal Region: The Yukon River, Alaska and the Bering Sea Kazuhisa A. Chikita Tomoyuki Wada Isao Kudo Sei-Ichi Saitoh Mitsuhiro Toratani 2021-03-01T00:00:00Z https://doi.org/10.3390/hydrology8010045 https://doaj.org/article/97c8fe5a726d4b77aa8d374b2db36989 EN eng MDPI AG https://www.mdpi.com/2306-5338/8/1/45 https://doaj.org/toc/2306-5338 doi:10.3390/hydrology8010045 2306-5338 https://doaj.org/article/97c8fe5a726d4b77aa8d374b2db36989 Hydrology, Vol 8, Iss 45, p 45 (2021) Yukon River plume river discharge sediment load flocculation plunging underflow Science Q article 2021 ftdoajarticles https://doi.org/10.3390/hydrology8010045 2022-12-31T10:53:58Z In the Bering Sea around and off the Yukon River delta, surface sediment plumes are markedly formed by glacier-melt and rainfall sediment runoffs of the Yukon River, Alaska, in June– September. The discharge and sediment load time series of the Yukon River were obtained at the lowest gauging station of US Geological Survey in June 2006–September 2010. Meanwhile, by coastal observations on boat, it was found out that the river plume plunges at a boundary between turbid plume water and clean marine water at the Yukon River sediment load of more than ca. 2500 kg/s. Grain size analysis with changing salinity (‰) for the river sediment indicated that the suspended sediment becomes coarse at 2 to 5‰ by flocculation. Hence, the plume’s plunging probably occurred by the flocculation of the Yukon suspended sediment in the brackish zone upstream of the plunging boundary, where the differential settling from the flocculation is considered to have induced the turbid water intrusion into the bottom layer. Article in Journal/Newspaper Bering Sea glacier Yukon river Alaska Yukon Directory of Open Access Journals: DOAJ Articles Bering Sea Yukon Hydrology 8 1 45 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Yukon River plume river discharge sediment load flocculation plunging underflow Science Q |
spellingShingle |
Yukon River plume river discharge sediment load flocculation plunging underflow Science Q Kazuhisa A. Chikita Tomoyuki Wada Isao Kudo Sei-Ichi Saitoh Mitsuhiro Toratani Effects of River Discharge and Sediment Load on Sediment Plume Behaviors in a Coastal Region: The Yukon River, Alaska and the Bering Sea |
topic_facet |
Yukon River plume river discharge sediment load flocculation plunging underflow Science Q |
description |
In the Bering Sea around and off the Yukon River delta, surface sediment plumes are markedly formed by glacier-melt and rainfall sediment runoffs of the Yukon River, Alaska, in June– September. The discharge and sediment load time series of the Yukon River were obtained at the lowest gauging station of US Geological Survey in June 2006–September 2010. Meanwhile, by coastal observations on boat, it was found out that the river plume plunges at a boundary between turbid plume water and clean marine water at the Yukon River sediment load of more than ca. 2500 kg/s. Grain size analysis with changing salinity (‰) for the river sediment indicated that the suspended sediment becomes coarse at 2 to 5‰ by flocculation. Hence, the plume’s plunging probably occurred by the flocculation of the Yukon suspended sediment in the brackish zone upstream of the plunging boundary, where the differential settling from the flocculation is considered to have induced the turbid water intrusion into the bottom layer. |
format |
Article in Journal/Newspaper |
author |
Kazuhisa A. Chikita Tomoyuki Wada Isao Kudo Sei-Ichi Saitoh Mitsuhiro Toratani |
author_facet |
Kazuhisa A. Chikita Tomoyuki Wada Isao Kudo Sei-Ichi Saitoh Mitsuhiro Toratani |
author_sort |
Kazuhisa A. Chikita |
title |
Effects of River Discharge and Sediment Load on Sediment Plume Behaviors in a Coastal Region: The Yukon River, Alaska and the Bering Sea |
title_short |
Effects of River Discharge and Sediment Load on Sediment Plume Behaviors in a Coastal Region: The Yukon River, Alaska and the Bering Sea |
title_full |
Effects of River Discharge and Sediment Load on Sediment Plume Behaviors in a Coastal Region: The Yukon River, Alaska and the Bering Sea |
title_fullStr |
Effects of River Discharge and Sediment Load on Sediment Plume Behaviors in a Coastal Region: The Yukon River, Alaska and the Bering Sea |
title_full_unstemmed |
Effects of River Discharge and Sediment Load on Sediment Plume Behaviors in a Coastal Region: The Yukon River, Alaska and the Bering Sea |
title_sort |
effects of river discharge and sediment load on sediment plume behaviors in a coastal region: the yukon river, alaska and the bering sea |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/hydrology8010045 https://doaj.org/article/97c8fe5a726d4b77aa8d374b2db36989 |
geographic |
Bering Sea Yukon |
geographic_facet |
Bering Sea Yukon |
genre |
Bering Sea glacier Yukon river Alaska Yukon |
genre_facet |
Bering Sea glacier Yukon river Alaska Yukon |
op_source |
Hydrology, Vol 8, Iss 45, p 45 (2021) |
op_relation |
https://www.mdpi.com/2306-5338/8/1/45 https://doaj.org/toc/2306-5338 doi:10.3390/hydrology8010045 2306-5338 https://doaj.org/article/97c8fe5a726d4b77aa8d374b2db36989 |
op_doi |
https://doi.org/10.3390/hydrology8010045 |
container_title |
Hydrology |
container_volume |
8 |
container_issue |
1 |
container_start_page |
45 |
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1766377633814151168 |