The Large Rivers of the Past in West Siberia: Unknown Hydrological Regimen
The hydrological regime of large meandering rivers of the West Siberian Plain in the Late Pleniglacial/Late Glacial was reconstructed from the hydraulic geometry of palaeochannels. The main tools for the reconstruction were the power law relationship between channel bankfull width and mean maximum d...
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MDPI AG
2023
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Online Access: | https://doi.org/10.3390/w15020258 https://doaj.org/article/8878dcd16cac444aa4edf656efacb8be |
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ftdoajarticles:oai:doaj.org/article:8878dcd16cac444aa4edf656efacb8be 2023-05-15T15:08:15+02:00 The Large Rivers of the Past in West Siberia: Unknown Hydrological Regimen Aleksey Sidorchuk 2023-01-01T00:00:00Z https://doi.org/10.3390/w15020258 https://doaj.org/article/8878dcd16cac444aa4edf656efacb8be EN eng MDPI AG https://www.mdpi.com/2073-4441/15/2/258 https://doaj.org/toc/2073-4441 doi:10.3390/w15020258 2073-4441 https://doaj.org/article/8878dcd16cac444aa4edf656efacb8be Water, Vol 15, Iss 258, p 258 (2023) paleohydrology large meandering rivers Late Pleniglacial Late Glacial maximum daily runoff depth mean annual runoff Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 article 2023 ftdoajarticles https://doi.org/10.3390/w15020258 2023-01-22T01:25:47Z The hydrological regime of large meandering rivers of the West Siberian Plain in the Late Pleniglacial/Late Glacial was reconstructed from the hydraulic geometry of palaeochannels. The main tools for the reconstruction were the power law relationship between channel bankfull width and mean maximum discharge, taken in the downstream direction, and relationships between peak flood discharge and the contributing basin area. Reconstructed values of daily maximum surface runoff depth during the snow thaw period in the Late Pleniglacial/Late Glacial were 60–75 mm/day in the north of the plain with tundra and sparse forest and 20–40 mm/day in the south with periglacial steppe. The mean daily maximum surface runoff depth for the entirety of West Siberia was about 46 mm, which is more than five times greater than the modern value. Annual river runoff was calculated with the ratio between mean annual and mean maximum runoff depths, estimated for the modern region’s analogues of ancient periglacial landscapes and climates. Total annual flow of the Ob into the ocean was about 1000 km 3 . This is three times the current flow from the same basin, so the river was a significant source of fresh water to the Arctic Ocean during the last deglaciation. Article in Journal/Newspaper Arctic Arctic Ocean Tundra Siberia Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Water 15 2 258 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
paleohydrology large meandering rivers Late Pleniglacial Late Glacial maximum daily runoff depth mean annual runoff Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
spellingShingle |
paleohydrology large meandering rivers Late Pleniglacial Late Glacial maximum daily runoff depth mean annual runoff Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Aleksey Sidorchuk The Large Rivers of the Past in West Siberia: Unknown Hydrological Regimen |
topic_facet |
paleohydrology large meandering rivers Late Pleniglacial Late Glacial maximum daily runoff depth mean annual runoff Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
description |
The hydrological regime of large meandering rivers of the West Siberian Plain in the Late Pleniglacial/Late Glacial was reconstructed from the hydraulic geometry of palaeochannels. The main tools for the reconstruction were the power law relationship between channel bankfull width and mean maximum discharge, taken in the downstream direction, and relationships between peak flood discharge and the contributing basin area. Reconstructed values of daily maximum surface runoff depth during the snow thaw period in the Late Pleniglacial/Late Glacial were 60–75 mm/day in the north of the plain with tundra and sparse forest and 20–40 mm/day in the south with periglacial steppe. The mean daily maximum surface runoff depth for the entirety of West Siberia was about 46 mm, which is more than five times greater than the modern value. Annual river runoff was calculated with the ratio between mean annual and mean maximum runoff depths, estimated for the modern region’s analogues of ancient periglacial landscapes and climates. Total annual flow of the Ob into the ocean was about 1000 km 3 . This is three times the current flow from the same basin, so the river was a significant source of fresh water to the Arctic Ocean during the last deglaciation. |
format |
Article in Journal/Newspaper |
author |
Aleksey Sidorchuk |
author_facet |
Aleksey Sidorchuk |
author_sort |
Aleksey Sidorchuk |
title |
The Large Rivers of the Past in West Siberia: Unknown Hydrological Regimen |
title_short |
The Large Rivers of the Past in West Siberia: Unknown Hydrological Regimen |
title_full |
The Large Rivers of the Past in West Siberia: Unknown Hydrological Regimen |
title_fullStr |
The Large Rivers of the Past in West Siberia: Unknown Hydrological Regimen |
title_full_unstemmed |
The Large Rivers of the Past in West Siberia: Unknown Hydrological Regimen |
title_sort |
large rivers of the past in west siberia: unknown hydrological regimen |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/w15020258 https://doaj.org/article/8878dcd16cac444aa4edf656efacb8be |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Tundra Siberia |
genre_facet |
Arctic Arctic Ocean Tundra Siberia |
op_source |
Water, Vol 15, Iss 258, p 258 (2023) |
op_relation |
https://www.mdpi.com/2073-4441/15/2/258 https://doaj.org/toc/2073-4441 doi:10.3390/w15020258 2073-4441 https://doaj.org/article/8878dcd16cac444aa4edf656efacb8be |
op_doi |
https://doi.org/10.3390/w15020258 |
container_title |
Water |
container_volume |
15 |
container_issue |
2 |
container_start_page |
258 |
_version_ |
1766339641418448896 |