Characterising Runoff Generation Processes in a Lake‐Rich Thermokarst Landscape (Old Crow Flats, Yukon, Canada) using δ 18 O, δ 2 H and d‐excess Measurements
ABSTRACT Application of novel hydrological methods for assessing runoff generation in remote northern landscapes is necessary to identify the consequences of climate variability and change. In Old Crow Flats, a lake‐rich thermokarst landscape in northern Yukon Territory (Canada), local land users ha...
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crwiley:10.1002/ppp.1802 2024-06-02T08:12:41+00:00 Characterising Runoff Generation Processes in a Lake‐Rich Thermokarst Landscape (Old Crow Flats, Yukon, Canada) using δ 18 O, δ 2 H and d‐excess Measurements Turner, Kevin W. Edwards, Thomas W. D. Wolfe, Brent B. 2014 http://dx.doi.org/10.1002/ppp.1802 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1802 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1802 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 25, issue 1, page 53-59 ISSN 1045-6740 1099-1530 journal-article 2014 crwiley https://doi.org/10.1002/ppp.1802 2024-05-03T10:48:22Z ABSTRACT Application of novel hydrological methods for assessing runoff generation in remote northern landscapes is necessary to identify the consequences of climate variability and change. In Old Crow Flats, a lake‐rich thermokarst landscape in northern Yukon Territory (Canada), local land users have concerns over the effects of recent lake drainage and fluctuating river discharge on their traditional way of life. In the absence of hydrometric stations, we evaluate the utility of isotopic monitoring of the lower Old Crow River, which is fed by several tributaries and drains the flats, for tracking runoff generation. Isotopic ‘snapshots’ obtained from 2007, 2008 and 2009 during the recession limb of the spring freshet hydrograph provided characteristic patterns of deuterium excess (d‐excess) along the Old Crow River. River sampling in June 2007 captured a pulse of evaporatively enriched lake water originating from a rainfall‐triggered catastrophic lake drainage event, identified by decreased d‐excess values. June 2008 was marked by negligible variability in d‐excess values along the same reach of the river, consistent with minimal export of lake waters after a winter of below‐normal snow accumulation. In contrast, rising d‐excess values along the study reach in June 2009 indicate enhanced rainfall‐generated runoff. River isotope sampling could be used to monitor spatial and temporal variability in runoff generation processes in the Old Crow Flats and other northern lake‐rich landscapes drained by rivers. Copyright © 2014 John Wiley & Sons, Ltd. Article in Journal/Newspaper Old Crow Permafrost and Periglacial Processes Thermokarst Yukon Wiley Online Library Canada Crow River ENVELOPE(-125.395,-125.395,60.000,60.000) Old Crow Flats ENVELOPE(-139.755,-139.755,68.083,68.083) Old Crow River ENVELOPE(-139.803,-139.803,67.580,67.580) The Flats ENVELOPE(-56.948,-56.948,51.467,51.467) Yukon Permafrost and Periglacial Processes 25 1 53 59 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT Application of novel hydrological methods for assessing runoff generation in remote northern landscapes is necessary to identify the consequences of climate variability and change. In Old Crow Flats, a lake‐rich thermokarst landscape in northern Yukon Territory (Canada), local land users have concerns over the effects of recent lake drainage and fluctuating river discharge on their traditional way of life. In the absence of hydrometric stations, we evaluate the utility of isotopic monitoring of the lower Old Crow River, which is fed by several tributaries and drains the flats, for tracking runoff generation. Isotopic ‘snapshots’ obtained from 2007, 2008 and 2009 during the recession limb of the spring freshet hydrograph provided characteristic patterns of deuterium excess (d‐excess) along the Old Crow River. River sampling in June 2007 captured a pulse of evaporatively enriched lake water originating from a rainfall‐triggered catastrophic lake drainage event, identified by decreased d‐excess values. June 2008 was marked by negligible variability in d‐excess values along the same reach of the river, consistent with minimal export of lake waters after a winter of below‐normal snow accumulation. In contrast, rising d‐excess values along the study reach in June 2009 indicate enhanced rainfall‐generated runoff. River isotope sampling could be used to monitor spatial and temporal variability in runoff generation processes in the Old Crow Flats and other northern lake‐rich landscapes drained by rivers. Copyright © 2014 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Turner, Kevin W. Edwards, Thomas W. D. Wolfe, Brent B. |
spellingShingle |
Turner, Kevin W. Edwards, Thomas W. D. Wolfe, Brent B. Characterising Runoff Generation Processes in a Lake‐Rich Thermokarst Landscape (Old Crow Flats, Yukon, Canada) using δ 18 O, δ 2 H and d‐excess Measurements |
author_facet |
Turner, Kevin W. Edwards, Thomas W. D. Wolfe, Brent B. |
author_sort |
Turner, Kevin W. |
title |
Characterising Runoff Generation Processes in a Lake‐Rich Thermokarst Landscape (Old Crow Flats, Yukon, Canada) using δ 18 O, δ 2 H and d‐excess Measurements |
title_short |
Characterising Runoff Generation Processes in a Lake‐Rich Thermokarst Landscape (Old Crow Flats, Yukon, Canada) using δ 18 O, δ 2 H and d‐excess Measurements |
title_full |
Characterising Runoff Generation Processes in a Lake‐Rich Thermokarst Landscape (Old Crow Flats, Yukon, Canada) using δ 18 O, δ 2 H and d‐excess Measurements |
title_fullStr |
Characterising Runoff Generation Processes in a Lake‐Rich Thermokarst Landscape (Old Crow Flats, Yukon, Canada) using δ 18 O, δ 2 H and d‐excess Measurements |
title_full_unstemmed |
Characterising Runoff Generation Processes in a Lake‐Rich Thermokarst Landscape (Old Crow Flats, Yukon, Canada) using δ 18 O, δ 2 H and d‐excess Measurements |
title_sort |
characterising runoff generation processes in a lake‐rich thermokarst landscape (old crow flats, yukon, canada) using δ 18 o, δ 2 h and d‐excess measurements |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1002/ppp.1802 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1802 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1802 |
long_lat |
ENVELOPE(-125.395,-125.395,60.000,60.000) ENVELOPE(-139.755,-139.755,68.083,68.083) ENVELOPE(-139.803,-139.803,67.580,67.580) ENVELOPE(-56.948,-56.948,51.467,51.467) |
geographic |
Canada Crow River Old Crow Flats Old Crow River The Flats Yukon |
geographic_facet |
Canada Crow River Old Crow Flats Old Crow River The Flats Yukon |
genre |
Old Crow Permafrost and Periglacial Processes Thermokarst Yukon |
genre_facet |
Old Crow Permafrost and Periglacial Processes Thermokarst Yukon |
op_source |
Permafrost and Periglacial Processes volume 25, issue 1, page 53-59 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.1802 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
25 |
container_issue |
1 |
container_start_page |
53 |
op_container_end_page |
59 |
_version_ |
1800759217466900480 |