Hydroecological responses of the Athabasca Delta, Canada, to changes in river flow and climate during the 20th century
International audience We employ water-isotope tracers and multi-proxy paleolimnological records to characterize contemporary controls onwater balances of floodplain lakes in the Athabasca Delta. Canada, within the context of its hydroecological evolution over the 20th century. The insight gained fr...
Published in: | Ecohydrology |
---|---|
Main Authors: | , , , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2008
|
Subjects: | |
Online Access: | https://hal.science/hal-01795358 https://doi.org/10.1002/eco.13 |
id |
ftcollegfrance:oai:HAL:hal-01795358v1 |
---|---|
record_format |
openpolar |
spelling |
ftcollegfrance:oai:HAL:hal-01795358v1 2024-06-23T07:51:00+00:00 Hydroecological responses of the Athabasca Delta, Canada, to changes in river flow and climate during the 20th century Wolfe, Brent B. Hall, Roland I. Edwards, Thomas W. D. Vardy, Sheila R. Falcone, Matthew D. Sjunneskog, Charlotte Sylvestre, Florence Mcgowan, Suzanne Leavitt, Peter R. Driel, Peter, Van Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2008 https://hal.science/hal-01795358 https://doi.org/10.1002/eco.13 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/eco.13 hal-01795358 https://hal.science/hal-01795358 doi:10.1002/eco.13 ISSN: 1936-0584 EISSN: 1936-0592 Ecohydrology https://hal.science/hal-01795358 Ecohydrology, 2008, 1 (2), pp.131-148. ⟨10.1002/eco.13⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2008 ftcollegfrance https://doi.org/10.1002/eco.13 2024-06-13T23:39:52Z International audience We employ water-isotope tracers and multi-proxy paleolimnological records to characterize contemporary controls onwater balances of floodplain lakes in the Athabasca Delta. Canada, within the context of its hydroecological evolution over the 20th century. The insight gained from these approaches is necessary to gauge the hydroecological resiliency of the Athabasca Delta to past and future changes in Athabasca River flow regime. Results obtained from three lakes located in different regions of the Athabasca Delta indicate that hydroecological conditions were strongly affected by an engineered meander cut-off on the Athabasca River in 1972 intended to maintain flow in the river main stem, and a natural bifurcation of one of the major distributaries (Embarras River) in 1982 in response to progressive overextension of the delta to the east. Climate warming and naturally declining river discharge have also contributed to directional change. Recent drying trends reconstructed from sediment cores at two of the three lakes are likely representative of rapidly evolving hydroecological conditions in the south-eastern sector based on mappoing of a recent high-magnitude ice-jam flood that failed to recharge this portion of the delta, while wetting in the region of the third lake due to increased frequency of river flooding reflects increasing of the magnitude and timing of discharge in the Athabasca River and heighten the need for informed management strategies to safeguard the integrity of this unique wetland ecosystem. Copyright (C) 2008 John Wiley & Sons, Ltd. Article in Journal/Newspaper Athabasca River Collège de France: HAL Athabasca River Canada Embarras ENVELOPE(-111.385,-111.385,58.217,58.217) Embarras River ENVELOPE(-111.052,-111.052,58.684,58.684) Ecohydrology 1 2 131 148 |
institution |
Open Polar |
collection |
Collège de France: HAL |
op_collection_id |
ftcollegfrance |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Wolfe, Brent B. Hall, Roland I. Edwards, Thomas W. D. Vardy, Sheila R. Falcone, Matthew D. Sjunneskog, Charlotte Sylvestre, Florence Mcgowan, Suzanne Leavitt, Peter R. Driel, Peter, Van Hydroecological responses of the Athabasca Delta, Canada, to changes in river flow and climate during the 20th century |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience We employ water-isotope tracers and multi-proxy paleolimnological records to characterize contemporary controls onwater balances of floodplain lakes in the Athabasca Delta. Canada, within the context of its hydroecological evolution over the 20th century. The insight gained from these approaches is necessary to gauge the hydroecological resiliency of the Athabasca Delta to past and future changes in Athabasca River flow regime. Results obtained from three lakes located in different regions of the Athabasca Delta indicate that hydroecological conditions were strongly affected by an engineered meander cut-off on the Athabasca River in 1972 intended to maintain flow in the river main stem, and a natural bifurcation of one of the major distributaries (Embarras River) in 1982 in response to progressive overextension of the delta to the east. Climate warming and naturally declining river discharge have also contributed to directional change. Recent drying trends reconstructed from sediment cores at two of the three lakes are likely representative of rapidly evolving hydroecological conditions in the south-eastern sector based on mappoing of a recent high-magnitude ice-jam flood that failed to recharge this portion of the delta, while wetting in the region of the third lake due to increased frequency of river flooding reflects increasing of the magnitude and timing of discharge in the Athabasca River and heighten the need for informed management strategies to safeguard the integrity of this unique wetland ecosystem. Copyright (C) 2008 John Wiley & Sons, Ltd. |
author2 |
Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Wolfe, Brent B. Hall, Roland I. Edwards, Thomas W. D. Vardy, Sheila R. Falcone, Matthew D. Sjunneskog, Charlotte Sylvestre, Florence Mcgowan, Suzanne Leavitt, Peter R. Driel, Peter, Van |
author_facet |
Wolfe, Brent B. Hall, Roland I. Edwards, Thomas W. D. Vardy, Sheila R. Falcone, Matthew D. Sjunneskog, Charlotte Sylvestre, Florence Mcgowan, Suzanne Leavitt, Peter R. Driel, Peter, Van |
author_sort |
Wolfe, Brent B. |
title |
Hydroecological responses of the Athabasca Delta, Canada, to changes in river flow and climate during the 20th century |
title_short |
Hydroecological responses of the Athabasca Delta, Canada, to changes in river flow and climate during the 20th century |
title_full |
Hydroecological responses of the Athabasca Delta, Canada, to changes in river flow and climate during the 20th century |
title_fullStr |
Hydroecological responses of the Athabasca Delta, Canada, to changes in river flow and climate during the 20th century |
title_full_unstemmed |
Hydroecological responses of the Athabasca Delta, Canada, to changes in river flow and climate during the 20th century |
title_sort |
hydroecological responses of the athabasca delta, canada, to changes in river flow and climate during the 20th century |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-01795358 https://doi.org/10.1002/eco.13 |
long_lat |
ENVELOPE(-111.385,-111.385,58.217,58.217) ENVELOPE(-111.052,-111.052,58.684,58.684) |
geographic |
Athabasca River Canada Embarras Embarras River |
geographic_facet |
Athabasca River Canada Embarras Embarras River |
genre |
Athabasca River |
genre_facet |
Athabasca River |
op_source |
ISSN: 1936-0584 EISSN: 1936-0592 Ecohydrology https://hal.science/hal-01795358 Ecohydrology, 2008, 1 (2), pp.131-148. ⟨10.1002/eco.13⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/eco.13 hal-01795358 https://hal.science/hal-01795358 doi:10.1002/eco.13 |
op_doi |
https://doi.org/10.1002/eco.13 |
container_title |
Ecohydrology |
container_volume |
1 |
container_issue |
2 |
container_start_page |
131 |
op_container_end_page |
148 |
_version_ |
1802641996366479360 |