Chemostatic concentration–discharge behaviour observed in a headwater catchment underlain with discontinuous permafrost
Concentration–discharge dynamics were evaluated in a small (~ 2.25 km2) 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 r...
Published in: | Hydrological Processes |
---|---|
Main Authors: | , , , , , , , |
Language: | unknown |
Published: |
2023
|
Subjects: | |
Online Access: | http://www.osti.gov/servlets/purl/1893663 https://www.osti.gov/biblio/1893663 https://doi.org/10.1002/hyp.14591 |
id |
ftosti:oai:osti.gov:1893663 |
---|---|
record_format |
openpolar |
spelling |
ftosti:oai:osti.gov:1893663 2023-07-30T04:06:17+02:00 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. 2023-02-23 application/pdf http://www.osti.gov/servlets/purl/1893663 https://www.osti.gov/biblio/1893663 https://doi.org/10.1002/hyp.14591 unknown http://www.osti.gov/servlets/purl/1893663 https://www.osti.gov/biblio/1893663 https://doi.org/10.1002/hyp.14591 doi:10.1002/hyp.14591 37 INORGANIC ORGANIC PHYSICAL AND ANALYTICAL CHEMISTRY 58 GEOSCIENCES 2023 ftosti https://doi.org/10.1002/hyp.14591 2023-07-11T10:15:44Z Concentration–discharge dynamics were evaluated in a small (~ 2.25 km2) 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. Other/Unknown Material permafrost Seward Peninsula Alaska SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Hydrological Processes 36 5 |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
37 INORGANIC ORGANIC PHYSICAL AND ANALYTICAL CHEMISTRY 58 GEOSCIENCES |
spellingShingle |
37 INORGANIC ORGANIC PHYSICAL AND ANALYTICAL CHEMISTRY 58 GEOSCIENCES 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 |
topic_facet |
37 INORGANIC ORGANIC PHYSICAL AND ANALYTICAL CHEMISTRY 58 GEOSCIENCES |
description |
Concentration–discharge dynamics were evaluated in a small (~ 2.25 km2) 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. |
author |
Conroy, Nathan A. Dann, Julian B. Newman, Brent D. Heikoop, Jeffrey M. Arendt, Carli Busey, Bob Wilson, Cathy J. Wullschleger, Stan D. |
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 |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1893663 https://www.osti.gov/biblio/1893663 https://doi.org/10.1002/hyp.14591 |
genre |
permafrost Seward Peninsula Alaska |
genre_facet |
permafrost Seward Peninsula Alaska |
op_relation |
http://www.osti.gov/servlets/purl/1893663 https://www.osti.gov/biblio/1893663 https://doi.org/10.1002/hyp.14591 doi:10.1002/hyp.14591 |
op_doi |
https://doi.org/10.1002/hyp.14591 |
container_title |
Hydrological Processes |
container_volume |
36 |
container_issue |
5 |
_version_ |
1772818802385354752 |