Suspended sediment yield and climate change in Kamchatka, Far East of Russia

Key factors of sediment yield formation and variability in the Kamchatsky Krai are relief characteristics and climate (especially precipitation). The last research in climate change in Kamchatka demonstrates climate warming – mean annual air temperature has increased on 1.5 ∘C during the period from...

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Published in:Proceedings of the International Association of Hydrological Sciences
Main Author: L. V. Kuksina
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2019
Subjects:
geo
Online Access:https://doi.org/10.5194/piahs-381-55-2019
https://www.proc-iahs.net/381/55/2019/piahs-381-55-2019.pdf
https://doaj.org/article/308223dd2d034d6d91816dc9d9f66efc
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spelling fttriple:oai:gotriple.eu:oai:doaj.org/article:308223dd2d034d6d91816dc9d9f66efc 2023-05-15T16:58:33+02:00 Suspended sediment yield and climate change in Kamchatka, Far East of Russia L. V. Kuksina 2019-08-01 https://doi.org/10.5194/piahs-381-55-2019 https://www.proc-iahs.net/381/55/2019/piahs-381-55-2019.pdf https://doaj.org/article/308223dd2d034d6d91816dc9d9f66efc en eng Copernicus Publications doi:10.5194/piahs-381-55-2019 2199-8981 2199-899X https://www.proc-iahs.net/381/55/2019/piahs-381-55-2019.pdf https://doaj.org/article/308223dd2d034d6d91816dc9d9f66efc undefined Proceedings of the International Association of Hydrological Sciences, Vol 381, Pp 55-64 (2019) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2019 fttriple https://doi.org/10.5194/piahs-381-55-2019 2023-01-22T17:50:54Z Key factors of sediment yield formation and variability in the Kamchatsky Krai are relief characteristics and climate (especially precipitation). The last research in climate change in Kamchatka demonstrates climate warming – mean annual air temperature has increased on 1.5 ∘C during the period from 1951 to 2009 in average (the maximum increase was revealed in the west of Kamchatka and in the Kamchatka River valley, the minimum one – in the extreme south and north). Decrease of annual precipitation was observed at the same period. In addition frequency and intensity of precipitation is growing. Thereby described climate changes in Kamchatka influence on sediment yield characteristics directly (influence of precipitation on surface washout formation) and indirectly (through water runoff and hydrological regime of rivers changes). Analysis of spatio-temporal variability in suspended sediment yield demonstrated decrease since late 1970–early 1980 in the most part of rivers in the Kamchatsky Krai. Revealed fluctuations demonstrate very good coincidence with precipitation amount variability. Decrease of precipitation leads to corresponding diminution of rainfall erosive factor in the territory which is the key factor of suspended sediment yield formation and variability in rivers in the Kamchatsky Krai. The value of reduction varies from 1 % to 45 % and involves decrease of erosion rates in the territory. Thereby climate change influences on suspended sediment yield in multiple-valued way. Income of friable volcanic deposits on the catchment surface is the key factor of suspended sediment yield formation and variability in some river basins under the impact of volcanic eruptions, and in combination with raising precipitation it can lead to catastrophic increase of sediment yield. Article in Journal/Newspaper Kamchatka Unknown Proceedings of the International Association of Hydrological Sciences 381 55 64
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic geo
envir
spellingShingle geo
envir
L. V. Kuksina
Suspended sediment yield and climate change in Kamchatka, Far East of Russia
topic_facet geo
envir
description Key factors of sediment yield formation and variability in the Kamchatsky Krai are relief characteristics and climate (especially precipitation). The last research in climate change in Kamchatka demonstrates climate warming – mean annual air temperature has increased on 1.5 ∘C during the period from 1951 to 2009 in average (the maximum increase was revealed in the west of Kamchatka and in the Kamchatka River valley, the minimum one – in the extreme south and north). Decrease of annual precipitation was observed at the same period. In addition frequency and intensity of precipitation is growing. Thereby described climate changes in Kamchatka influence on sediment yield characteristics directly (influence of precipitation on surface washout formation) and indirectly (through water runoff and hydrological regime of rivers changes). Analysis of spatio-temporal variability in suspended sediment yield demonstrated decrease since late 1970–early 1980 in the most part of rivers in the Kamchatsky Krai. Revealed fluctuations demonstrate very good coincidence with precipitation amount variability. Decrease of precipitation leads to corresponding diminution of rainfall erosive factor in the territory which is the key factor of suspended sediment yield formation and variability in rivers in the Kamchatsky Krai. The value of reduction varies from 1 % to 45 % and involves decrease of erosion rates in the territory. Thereby climate change influences on suspended sediment yield in multiple-valued way. Income of friable volcanic deposits on the catchment surface is the key factor of suspended sediment yield formation and variability in some river basins under the impact of volcanic eruptions, and in combination with raising precipitation it can lead to catastrophic increase of sediment yield.
format Article in Journal/Newspaper
author L. V. Kuksina
author_facet L. V. Kuksina
author_sort L. V. Kuksina
title Suspended sediment yield and climate change in Kamchatka, Far East of Russia
title_short Suspended sediment yield and climate change in Kamchatka, Far East of Russia
title_full Suspended sediment yield and climate change in Kamchatka, Far East of Russia
title_fullStr Suspended sediment yield and climate change in Kamchatka, Far East of Russia
title_full_unstemmed Suspended sediment yield and climate change in Kamchatka, Far East of Russia
title_sort suspended sediment yield and climate change in kamchatka, far east of russia
publisher Copernicus Publications
publishDate 2019
url https://doi.org/10.5194/piahs-381-55-2019
https://www.proc-iahs.net/381/55/2019/piahs-381-55-2019.pdf
https://doaj.org/article/308223dd2d034d6d91816dc9d9f66efc
genre Kamchatka
genre_facet Kamchatka
op_source Proceedings of the International Association of Hydrological Sciences, Vol 381, Pp 55-64 (2019)
op_relation doi:10.5194/piahs-381-55-2019
2199-8981
2199-899X
https://www.proc-iahs.net/381/55/2019/piahs-381-55-2019.pdf
https://doaj.org/article/308223dd2d034d6d91816dc9d9f66efc
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container_title Proceedings of the International Association of Hydrological Sciences
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