Spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment
This article was supported by the German Research Foundation (DFG) and the Open Access Publication Fund of Humboldt-Universität zu Berlin. Permafrost strongly controls hydrological processes in cold regions. Our understanding of how changes in seasonal and perennial frozen ground disposition and lin...
Published in: | Hydrology and Earth System Sciences |
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Humboldt-Universität zu Berlin
2019
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fthuberlin:oai:edoc.hu-berlin.de:18452/21386 2023-12-03T10:28:52+01:00 Spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment Piovano, Thea Ilaria Tetzlaff, Doerthe Carey, Sean Shatilla, Nadine Smith, Aaron Soulsby, Chris 2019-06-03 application/pdf http://edoc.hu-berlin.de/18452/21386 https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/21386-3 https://doi.org/10.18452/20607 https://doi.org/10.5194/hess-23-2507-2019 eng eng Humboldt-Universität zu Berlin 1027-5606 http://edoc.hu-berlin.de/18452/21386 urn:nbn:de:kobv:11-110-18452/21386-3 http://dx.doi.org/10.18452/20607 1607-7938 doi:10.5194/hess-23-2507-2019 (CC BY 4.0) Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ 550 Geowissenschaften ddc:550 article doc-type:article publishedVersion 2019 fthuberlin https://doi.org/10.18452/2060710.5194/hess-23-2507-2019 2023-11-05T23:36:06Z This article was supported by the German Research Foundation (DFG) and the Open Access Publication Fund of Humboldt-Universität zu Berlin. Permafrost strongly controls hydrological processes in cold regions. Our understanding of how changes in seasonal and perennial frozen ground disposition and linked storage dynamics affect runoff generation processes remains limited. Storage dynamics and water redistribution are influenced by the seasonal variability and spatial heterogeneity of frozen ground, snow accumulation and melt. Stable isotopes are potentially useful for quantifying the dynamics of water sources, flow paths and ages, yet few studies have employed isotope data in permafrost-influenced catchments. Here, we applied the conceptual model STARR (the Spatially distributed Tracer-Aided Rainfall–Runoff model), which facilitates fully distributed simulations of hydrological storage dynamics and runoff processes, isotopic composition and water ages. We adapted this model for a subarctic catchment in Yukon Territory, Canada, with a timevariable implementation of field capacity to include the influence of thaw dynamics. A multi-criteria calibration based on stream flow, snow water equivalent and isotopes was applied to 3 years of data. The integration of isotope data in the spatially distributed model provided the basis for quantifying spatio-temporal dynamics of water storage and ages, emphasizing the importance of thaw layer dynamics in mixing and damping the melt signal. By using the model conceptualization of spatially and temporally variable storage, this study demonstrates the ability of tracer-aided modelling to capture thaw layer dynamics that cause mixing and damping of the isotopic melt signal. Peer Reviewed Article in Journal/Newspaper permafrost Subarctic Yukon Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server Canada Yukon Hydrology and Earth System Sciences 23 6 2507 2523 |
institution |
Open Polar |
collection |
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server |
op_collection_id |
fthuberlin |
language |
English |
topic |
550 Geowissenschaften ddc:550 |
spellingShingle |
550 Geowissenschaften ddc:550 Piovano, Thea Ilaria Tetzlaff, Doerthe Carey, Sean Shatilla, Nadine Smith, Aaron Soulsby, Chris Spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment |
topic_facet |
550 Geowissenschaften ddc:550 |
description |
This article was supported by the German Research Foundation (DFG) and the Open Access Publication Fund of Humboldt-Universität zu Berlin. Permafrost strongly controls hydrological processes in cold regions. Our understanding of how changes in seasonal and perennial frozen ground disposition and linked storage dynamics affect runoff generation processes remains limited. Storage dynamics and water redistribution are influenced by the seasonal variability and spatial heterogeneity of frozen ground, snow accumulation and melt. Stable isotopes are potentially useful for quantifying the dynamics of water sources, flow paths and ages, yet few studies have employed isotope data in permafrost-influenced catchments. Here, we applied the conceptual model STARR (the Spatially distributed Tracer-Aided Rainfall–Runoff model), which facilitates fully distributed simulations of hydrological storage dynamics and runoff processes, isotopic composition and water ages. We adapted this model for a subarctic catchment in Yukon Territory, Canada, with a timevariable implementation of field capacity to include the influence of thaw dynamics. A multi-criteria calibration based on stream flow, snow water equivalent and isotopes was applied to 3 years of data. The integration of isotope data in the spatially distributed model provided the basis for quantifying spatio-temporal dynamics of water storage and ages, emphasizing the importance of thaw layer dynamics in mixing and damping the melt signal. By using the model conceptualization of spatially and temporally variable storage, this study demonstrates the ability of tracer-aided modelling to capture thaw layer dynamics that cause mixing and damping of the isotopic melt signal. Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Piovano, Thea Ilaria Tetzlaff, Doerthe Carey, Sean Shatilla, Nadine Smith, Aaron Soulsby, Chris |
author_facet |
Piovano, Thea Ilaria Tetzlaff, Doerthe Carey, Sean Shatilla, Nadine Smith, Aaron Soulsby, Chris |
author_sort |
Piovano, Thea Ilaria |
title |
Spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment |
title_short |
Spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment |
title_full |
Spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment |
title_fullStr |
Spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment |
title_full_unstemmed |
Spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment |
title_sort |
spatially distributed tracer-aided runoff modelling and dynamics of storage and water ages in a permafrost-influenced catchment |
publisher |
Humboldt-Universität zu Berlin |
publishDate |
2019 |
url |
http://edoc.hu-berlin.de/18452/21386 https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/21386-3 https://doi.org/10.18452/20607 https://doi.org/10.5194/hess-23-2507-2019 |
geographic |
Canada Yukon |
geographic_facet |
Canada Yukon |
genre |
permafrost Subarctic Yukon |
genre_facet |
permafrost Subarctic Yukon |
op_relation |
1027-5606 http://edoc.hu-berlin.de/18452/21386 urn:nbn:de:kobv:11-110-18452/21386-3 http://dx.doi.org/10.18452/20607 1607-7938 doi:10.5194/hess-23-2507-2019 |
op_rights |
(CC BY 4.0) Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.18452/2060710.5194/hess-23-2507-2019 |
container_title |
Hydrology and Earth System Sciences |
container_volume |
23 |
container_issue |
6 |
container_start_page |
2507 |
op_container_end_page |
2523 |
_version_ |
1784253890658566144 |