Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment
Abstract Research on runoff generation in catchments with discontinuous permafrost has focused primarily upon the role of surface organic layers and frozen soils (both permanent and seasonal). Much of this work has been hydrometric, with isotope and hydrochemical methods receiving only limited appli...
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crwiley:10.1002/hyp.5764 2024-06-23T07:56:05+00:00 Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment Carey, S. K. Quinton, W. L. 2005 http://dx.doi.org/10.1002/hyp.5764 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.5764 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.5764 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 19, issue 1, page 95-114 ISSN 0885-6087 1099-1085 journal-article 2005 crwiley https://doi.org/10.1002/hyp.5764 2024-06-13T04:22:17Z Abstract Research on runoff generation in catchments with discontinuous permafrost has focused primarily upon the role of surface organic layers and frozen soils (both permanent and seasonal). Much of this work has been hydrometric, with isotope and hydrochemical methods receiving only limited application in delineating old and new water contributions and chemically inferred hydrological pathways. In a small subarctic alpine catchment within the Wolf Creek Research Basin, Yukon, runoff generation processes were studied in the summer of 2001 using a mixed method approach to evaluate the mechanisms and pathways of flow from the hillslopes to the stream during rainfall events. Two storms had δ 18 O isotopic ratios that differed significantly from baseflow and water within hillslopes, allowing for two‐component hydrograph separation to infer new and old water contributions. Event water contributions ranged between 7 and 9%, exhibiting little variability despite the large differences in event water and stormflow volume. Utilizing δ 18 O‐dissolved organic carbon and δ 18 O‐specific conductance data, two tracer three‐component hydrograph separations were attempted to isolate rainfall, water within the organic layer and mineral layer contributions to stormflow. Three‐component separations suggest that water from the mineral soil dominates the stormflow hydrograph, yet the contribution of organic‐layer water varies greatly depending upon the choice of tracers. Hydrometric data indicate that slopes with permafrost likely supply much of the stormflow water due to near‐surface water tables and transmissive organic soils. However, this signal was not clearly discernable in the streamflow hydrochemistry. More integrated studies are required to establish a greater understanding of hillslope processes in mountainous discontinuous permafrost catchments. Copyright © 2005 John Wiley & Sons, Ltd. Article in Journal/Newspaper permafrost Subarctic Yukon Wiley Online Library Yukon Hydrological Processes 19 1 95 114 |
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English |
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Abstract Research on runoff generation in catchments with discontinuous permafrost has focused primarily upon the role of surface organic layers and frozen soils (both permanent and seasonal). Much of this work has been hydrometric, with isotope and hydrochemical methods receiving only limited application in delineating old and new water contributions and chemically inferred hydrological pathways. In a small subarctic alpine catchment within the Wolf Creek Research Basin, Yukon, runoff generation processes were studied in the summer of 2001 using a mixed method approach to evaluate the mechanisms and pathways of flow from the hillslopes to the stream during rainfall events. Two storms had δ 18 O isotopic ratios that differed significantly from baseflow and water within hillslopes, allowing for two‐component hydrograph separation to infer new and old water contributions. Event water contributions ranged between 7 and 9%, exhibiting little variability despite the large differences in event water and stormflow volume. Utilizing δ 18 O‐dissolved organic carbon and δ 18 O‐specific conductance data, two tracer three‐component hydrograph separations were attempted to isolate rainfall, water within the organic layer and mineral layer contributions to stormflow. Three‐component separations suggest that water from the mineral soil dominates the stormflow hydrograph, yet the contribution of organic‐layer water varies greatly depending upon the choice of tracers. Hydrometric data indicate that slopes with permafrost likely supply much of the stormflow water due to near‐surface water tables and transmissive organic soils. However, this signal was not clearly discernable in the streamflow hydrochemistry. More integrated studies are required to establish a greater understanding of hillslope processes in mountainous discontinuous permafrost catchments. Copyright © 2005 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Carey, S. K. Quinton, W. L. |
spellingShingle |
Carey, S. K. Quinton, W. L. Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment |
author_facet |
Carey, S. K. Quinton, W. L. |
author_sort |
Carey, S. K. |
title |
Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment |
title_short |
Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment |
title_full |
Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment |
title_fullStr |
Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment |
title_full_unstemmed |
Evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment |
title_sort |
evaluating runoff generation during summer using hydrometric, stable isotope and hydrochemical methods in a discontinuous permafrost alpine catchment |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1002/hyp.5764 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.5764 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.5764 |
geographic |
Yukon |
geographic_facet |
Yukon |
genre |
permafrost Subarctic Yukon |
genre_facet |
permafrost Subarctic Yukon |
op_source |
Hydrological Processes volume 19, issue 1, page 95-114 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.5764 |
container_title |
Hydrological Processes |
container_volume |
19 |
container_issue |
1 |
container_start_page |
95 |
op_container_end_page |
114 |
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1802648972619153408 |