Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost
Role of changing climatic conditions on permafrost degradation and hydrology was investigated in the transition zone between the tundra and forest ecotones at the boundary of continuous and discontinuous permafrost of the lower Yenisei River. Three watersheds of various sizes were chosen to represen...
Published in: | Environmental Research Letters |
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2015
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Online Access: | https://doi.org/10.1088/1748-9326/10/9/095003 https://doaj.org/article/668d9cc66b2a46ccbc4d2d7c919df5da |
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ftdoajarticles:oai:doaj.org/article:668d9cc66b2a46ccbc4d2d7c919df5da 2023-09-05T13:11:08+02:00 Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost Dmitry A Streletskiy Nikita I Tananaev Thomas Opel Nikolay I Shiklomanov Kelsey E Nyland Irina D Streletskaya Igor’ Tokarev Alexandr I Shiklomanov 2015-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/10/9/095003 https://doaj.org/article/668d9cc66b2a46ccbc4d2d7c919df5da EN eng IOP Publishing https://doi.org/10.1088/1748-9326/10/9/095003 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/10/9/095003 1748-9326 https://doaj.org/article/668d9cc66b2a46ccbc4d2d7c919df5da Environmental Research Letters, Vol 10, Iss 9, p 095003 (2015) permafrost hydrology stable isotopes climate change Russian Arctic Yenisei River Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2015 ftdoajarticles https://doi.org/10.1088/1748-9326/10/9/095003 2023-08-13T00:37:54Z Role of changing climatic conditions on permafrost degradation and hydrology was investigated in the transition zone between the tundra and forest ecotones at the boundary of continuous and discontinuous permafrost of the lower Yenisei River. Three watersheds of various sizes were chosen to represent the characteristics of the regional landscape conditions. Samples of river flow, precipitation, snow cover, and permafrost ground ice were collected over the watersheds to determine isotopic composition of potential sources of water in a river flow over a two year period. Increases in air temperature over the last forty years have resulted in permafrost degradation and a decrease in the seasonal frost which is evident from soil temperature measurements, permafrost and active-layer monitoring, and analysis of satellite imagery. The lowering of the permafrost table has led to an increased storage capacity of permafrost affected soils and a higher contribution of ground water to river discharge during winter months. A progressive decrease in the thickness of the layer of seasonal freezing allows more water storage and pathways for water during the winter low period making winter discharge dependent on the timing and amount of late summer precipitation. There is a substantial seasonal variability of stable isotopic composition of river flow. Spring flooding corresponds to the isotopic composition of snow cover prior to the snowmelt. Isotopic composition of river flow during the summer period follows the variability of precipitation in smaller creeks, while the water flow of larger watersheds is influenced by the secondary evaporation of water temporarily stored in thermokarst lakes and bogs. Late summer precipitation determines the isotopic composition of texture ice within the active layer in tundra landscapes and the seasonal freezing layer in forested landscapes as well as the composition of the water flow during winter months. Article in Journal/Newspaper Active layer monitoring Arctic Climate change Ice permafrost Thermokarst Tundra Directory of Open Access Journals: DOAJ Articles Arctic Yenisei River ENVELOPE(84.738,84.738,69.718,69.718) Environmental Research Letters 10 9 095003 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
permafrost hydrology stable isotopes climate change Russian Arctic Yenisei River Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
permafrost hydrology stable isotopes climate change Russian Arctic Yenisei River Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Dmitry A Streletskiy Nikita I Tananaev Thomas Opel Nikolay I Shiklomanov Kelsey E Nyland Irina D Streletskaya Igor’ Tokarev Alexandr I Shiklomanov Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost |
topic_facet |
permafrost hydrology stable isotopes climate change Russian Arctic Yenisei River Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Role of changing climatic conditions on permafrost degradation and hydrology was investigated in the transition zone between the tundra and forest ecotones at the boundary of continuous and discontinuous permafrost of the lower Yenisei River. Three watersheds of various sizes were chosen to represent the characteristics of the regional landscape conditions. Samples of river flow, precipitation, snow cover, and permafrost ground ice were collected over the watersheds to determine isotopic composition of potential sources of water in a river flow over a two year period. Increases in air temperature over the last forty years have resulted in permafrost degradation and a decrease in the seasonal frost which is evident from soil temperature measurements, permafrost and active-layer monitoring, and analysis of satellite imagery. The lowering of the permafrost table has led to an increased storage capacity of permafrost affected soils and a higher contribution of ground water to river discharge during winter months. A progressive decrease in the thickness of the layer of seasonal freezing allows more water storage and pathways for water during the winter low period making winter discharge dependent on the timing and amount of late summer precipitation. There is a substantial seasonal variability of stable isotopic composition of river flow. Spring flooding corresponds to the isotopic composition of snow cover prior to the snowmelt. Isotopic composition of river flow during the summer period follows the variability of precipitation in smaller creeks, while the water flow of larger watersheds is influenced by the secondary evaporation of water temporarily stored in thermokarst lakes and bogs. Late summer precipitation determines the isotopic composition of texture ice within the active layer in tundra landscapes and the seasonal freezing layer in forested landscapes as well as the composition of the water flow during winter months. |
format |
Article in Journal/Newspaper |
author |
Dmitry A Streletskiy Nikita I Tananaev Thomas Opel Nikolay I Shiklomanov Kelsey E Nyland Irina D Streletskaya Igor’ Tokarev Alexandr I Shiklomanov |
author_facet |
Dmitry A Streletskiy Nikita I Tananaev Thomas Opel Nikolay I Shiklomanov Kelsey E Nyland Irina D Streletskaya Igor’ Tokarev Alexandr I Shiklomanov |
author_sort |
Dmitry A Streletskiy |
title |
Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost |
title_short |
Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost |
title_full |
Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost |
title_fullStr |
Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost |
title_full_unstemmed |
Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost |
title_sort |
permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost |
publisher |
IOP Publishing |
publishDate |
2015 |
url |
https://doi.org/10.1088/1748-9326/10/9/095003 https://doaj.org/article/668d9cc66b2a46ccbc4d2d7c919df5da |
long_lat |
ENVELOPE(84.738,84.738,69.718,69.718) |
geographic |
Arctic Yenisei River |
geographic_facet |
Arctic Yenisei River |
genre |
Active layer monitoring Arctic Climate change Ice permafrost Thermokarst Tundra |
genre_facet |
Active layer monitoring Arctic Climate change Ice permafrost Thermokarst Tundra |
op_source |
Environmental Research Letters, Vol 10, Iss 9, p 095003 (2015) |
op_relation |
https://doi.org/10.1088/1748-9326/10/9/095003 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/10/9/095003 1748-9326 https://doaj.org/article/668d9cc66b2a46ccbc4d2d7c919df5da |
op_doi |
https://doi.org/10.1088/1748-9326/10/9/095003 |
container_title |
Environmental Research Letters |
container_volume |
10 |
container_issue |
9 |
container_start_page |
095003 |
_version_ |
1776197857999585280 |