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://epic.awi.de/id/eprint/38715/ https://epic.awi.de/id/eprint/38715/1/15_Streletskiy_2015_ERL.pdf https://hdl.handle.net/10013/epic.46013 https://hdl.handle.net/10013/epic.46013.d001 |
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ftawi:oai:epic.awi.de:38715 2023-05-15T13:02:43+02:00 Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost Streletskiy, Dmitry Tananaev, Nikita Opel, Thomas Shiklomanov, Nikolay Nyland, Kelsey Streletskaya, Irina Tokarev, Igor Shiklomanov, Alexandr 2015-09-01 application/pdf https://epic.awi.de/id/eprint/38715/ https://epic.awi.de/id/eprint/38715/1/15_Streletskiy_2015_ERL.pdf https://hdl.handle.net/10013/epic.46013 https://hdl.handle.net/10013/epic.46013.d001 unknown IOP PUBLISHING LTD https://epic.awi.de/id/eprint/38715/1/15_Streletskiy_2015_ERL.pdf https://hdl.handle.net/10013/epic.46013.d001 Streletskiy, D. , Tananaev, N. , Opel, T. orcid:0000-0003-1315-8256 , Shiklomanov, N. , Nyland, K. , Streletskaya, I. , Tokarev, I. and Shiklomanov, A. (2015) Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost , Environmental Research Letters, 10 , 095003 . doi:10.1088/1748-9326/10/9/095003 <https://doi.org/10.1088/1748-9326%2F10%2F9%2F095003> , hdl:10013/epic.46013 EPIC3Environmental Research Letters, IOP PUBLISHING LTD, 10, pp. 095003, ISSN: 1748-9326 Article isiRev 2015 ftawi https://doi.org/10.1088/1748-9326/10/9/095003 2021-12-24T15:40:42Z 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 Ice permafrost Thermokarst Tundra Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Yenisei River ENVELOPE(84.738,84.738,69.718,69.718) Environmental Research Letters 10 9 095003 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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 |
Streletskiy, Dmitry Tananaev, Nikita Opel, Thomas Shiklomanov, Nikolay Nyland, Kelsey Streletskaya, Irina Tokarev, Igor Shiklomanov, Alexandr |
spellingShingle |
Streletskiy, Dmitry Tananaev, Nikita Opel, Thomas Shiklomanov, Nikolay Nyland, Kelsey Streletskaya, Irina Tokarev, Igor Shiklomanov, Alexandr Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost |
author_facet |
Streletskiy, Dmitry Tananaev, Nikita Opel, Thomas Shiklomanov, Nikolay Nyland, Kelsey Streletskaya, Irina Tokarev, Igor Shiklomanov, Alexandr |
author_sort |
Streletskiy, Dmitry |
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 LTD |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/38715/ https://epic.awi.de/id/eprint/38715/1/15_Streletskiy_2015_ERL.pdf https://hdl.handle.net/10013/epic.46013 https://hdl.handle.net/10013/epic.46013.d001 |
long_lat |
ENVELOPE(84.738,84.738,69.718,69.718) |
geographic |
Yenisei River |
geographic_facet |
Yenisei River |
genre |
Active layer monitoring Ice permafrost Thermokarst Tundra |
genre_facet |
Active layer monitoring Ice permafrost Thermokarst Tundra |
op_source |
EPIC3Environmental Research Letters, IOP PUBLISHING LTD, 10, pp. 095003, ISSN: 1748-9326 |
op_relation |
https://epic.awi.de/id/eprint/38715/1/15_Streletskiy_2015_ERL.pdf https://hdl.handle.net/10013/epic.46013.d001 Streletskiy, D. , Tananaev, N. , Opel, T. orcid:0000-0003-1315-8256 , Shiklomanov, N. , Nyland, K. , Streletskaya, I. , Tokarev, I. and Shiklomanov, A. (2015) Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost , Environmental Research Letters, 10 , 095003 . doi:10.1088/1748-9326/10/9/095003 <https://doi.org/10.1088/1748-9326%2F10%2F9%2F095003> , hdl:10013/epic.46013 |
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 |
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1766319693957693440 |