Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost
Abstract Concentration–discharge dynamics were evaluated in a small (~ 2.25 km 2 ) headwater catchment underlain with discontinuous permafrost on the Seward Peninsula of western Alaska. A large storm, during which 48 mm of rain fell over a 24‐h period, enabled the evaluation of solute concentration–...
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crwiley:10.1002/hyp.14591 2024-09-09T20:03:06+00:00 Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost Conroy, Nathan A. Dann, Julian B. Newman, Brent D. Heikoop, Jeffrey M. Arendt, Carli Busey, Bob Wilson, Cathy J. Wullschleger, Stan D. 2022 http://dx.doi.org/10.1002/hyp.14591 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.14591 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.14591 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Hydrological Processes volume 36, issue 5 ISSN 0885-6087 1099-1085 journal-article 2022 crwiley https://doi.org/10.1002/hyp.14591 2024-08-27T04:26:42Z Abstract Concentration–discharge dynamics were evaluated in a small (~ 2.25 km 2 ) headwater catchment underlain with discontinuous permafrost on the Seward Peninsula of western Alaska. A large storm, during which 48 mm of rain fell over a 24‐h period, enabled the evaluation of solute concentration–discharge response to a sizeable hydrological event, while water stable isotopes enabled an appraisal of the contributions of event water. Under normal catchment conditions, chemostatic behaviour was observed for solutes typically derived from mineral weathering (e.g. calcium, magnesium, sodium and silica). The chemostatic behaviour observed for most solutes under normal catchment conditions indicated that catchment storage and residence times are sufficiently long for many solute generating reactions to approach equilibrium. Following the storm however, most solutes exhibited dilutive and highly variable behaviour. This likely indicated the exceedance of a discharge threshold where chemostatic behaviour could no longer be maintained for most solutes. Dissolved organic carbon and silica were the only solutes monitored to exhibit chemostatic behaviour during all time periods. Article in Journal/Newspaper permafrost Seward Peninsula Alaska Wiley Online Library Hydrological Processes 36 5 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Concentration–discharge dynamics were evaluated in a small (~ 2.25 km 2 ) headwater catchment underlain with discontinuous permafrost on the Seward Peninsula of western Alaska. A large storm, during which 48 mm of rain fell over a 24‐h period, enabled the evaluation of solute concentration–discharge response to a sizeable hydrological event, while water stable isotopes enabled an appraisal of the contributions of event water. Under normal catchment conditions, chemostatic behaviour was observed for solutes typically derived from mineral weathering (e.g. calcium, magnesium, sodium and silica). The chemostatic behaviour observed for most solutes under normal catchment conditions indicated that catchment storage and residence times are sufficiently long for many solute generating reactions to approach equilibrium. Following the storm however, most solutes exhibited dilutive and highly variable behaviour. This likely indicated the exceedance of a discharge threshold where chemostatic behaviour could no longer be maintained for most solutes. Dissolved organic carbon and silica were the only solutes monitored to exhibit chemostatic behaviour during all time periods. |
format |
Article in Journal/Newspaper |
author |
Conroy, Nathan A. Dann, Julian B. Newman, Brent D. Heikoop, Jeffrey M. Arendt, Carli Busey, Bob Wilson, Cathy J. Wullschleger, Stan D. |
spellingShingle |
Conroy, Nathan A. Dann, Julian B. Newman, Brent D. Heikoop, Jeffrey M. Arendt, Carli Busey, Bob Wilson, Cathy J. Wullschleger, Stan D. Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost |
author_facet |
Conroy, Nathan A. Dann, Julian B. Newman, Brent D. Heikoop, Jeffrey M. Arendt, Carli Busey, Bob Wilson, Cathy J. Wullschleger, Stan D. |
author_sort |
Conroy, Nathan A. |
title |
Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost |
title_short |
Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost |
title_full |
Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost |
title_fullStr |
Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost |
title_full_unstemmed |
Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost |
title_sort |
chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/hyp.14591 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.14591 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.14591 |
genre |
permafrost Seward Peninsula Alaska |
genre_facet |
permafrost Seward Peninsula Alaska |
op_source |
Hydrological Processes volume 36, issue 5 ISSN 0885-6087 1099-1085 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/hyp.14591 |
container_title |
Hydrological Processes |
container_volume |
36 |
container_issue |
5 |
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1809935061336719360 |