Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge
We explore pan-Arctic climate connectivity by examining historical time series of satellite-based measurements of Eurasian snow cover extent and of observed Canadian snow water equivalent (SWE) and freshwater discharge, with a focus on the Churchill River Basin of Labrador and the Chesterfield Inlet...
Published in: | Journal of Geophysical Research |
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Language: | English |
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2005
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ftsouthampton:oai:eprints.soton.ac.uk:480729 2023-08-27T04:07:44+02:00 Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge Déry, Stephen J. Sheffield, Justin Wood, Eric F. 2005-12-16 https://eprints.soton.ac.uk/480729/ English eng Déry, Stephen J., Sheffield, Justin and Wood, Eric F. (2005) Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge. Journal of Geophysical Research Atmospheres, 110 (23), [D23106]. (doi:10.1029/2005JD006173 <http://dx.doi.org/10.1029/2005JD006173>). Article PeerReviewed 2005 ftsouthampton https://doi.org/10.1029/2005JD006173 2023-08-10T22:20:02Z We explore pan-Arctic climate connectivity by examining historical time series of satellite-based measurements of Eurasian snow cover extent and of observed Canadian snow water equivalent (SWE) and freshwater discharge, with a focus on the Churchill River Basin of Labrador and the Chesterfield Inlet Basin of Nunavut. Analysis of the data reveals statistically significant positive (negative) correlations between spring and summer Eurasian standardized snow cover extent anomalies and annual maximum monthly SWE as well as freshwater discharge in the Churchill River (Chesterfield Inlet) Basin the following year. A spatially coherent response to the forcing is observed since 19 rivers draining more than 0.6 × 10 6 km 2 of northern Quebec and Labrador and with a mean annual total discharge of 320 km 3 yr -1 show statistically significant positive correlations to the annual Eurasian standardized snow cover extent anomalies. The origin of this pan-Arctic climate connectivity is related to the persistent nature of the Eurasian snow cover extent anomalies and the associated accumulated gains or deficits in the surface radiation and water budgets that impose a memory in the climate system. The Eurasian snow cover extent anomalies provide some degree of predictability (up to 1 year in advance) of the surface water budget in the Churchill River and Chesterfield Inlet Basins. They further suggest that a declining trend in Eurasian snow cover extent will yield decreasing (increasing) SWE and river discharge in the Churchill River (Chesterfield Inlet) Basin in the 21st century. Article in Journal/Newspaper Arctic Chesterfield Inlet Churchill River Nunavut University of Southampton: e-Prints Soton Arctic Chesterfield Inlet ENVELOPE(-90.705,-90.705,63.342,63.342) Nunavut Journal of Geophysical Research 110 D23 |
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Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
We explore pan-Arctic climate connectivity by examining historical time series of satellite-based measurements of Eurasian snow cover extent and of observed Canadian snow water equivalent (SWE) and freshwater discharge, with a focus on the Churchill River Basin of Labrador and the Chesterfield Inlet Basin of Nunavut. Analysis of the data reveals statistically significant positive (negative) correlations between spring and summer Eurasian standardized snow cover extent anomalies and annual maximum monthly SWE as well as freshwater discharge in the Churchill River (Chesterfield Inlet) Basin the following year. A spatially coherent response to the forcing is observed since 19 rivers draining more than 0.6 × 10 6 km 2 of northern Quebec and Labrador and with a mean annual total discharge of 320 km 3 yr -1 show statistically significant positive correlations to the annual Eurasian standardized snow cover extent anomalies. The origin of this pan-Arctic climate connectivity is related to the persistent nature of the Eurasian snow cover extent anomalies and the associated accumulated gains or deficits in the surface radiation and water budgets that impose a memory in the climate system. The Eurasian snow cover extent anomalies provide some degree of predictability (up to 1 year in advance) of the surface water budget in the Churchill River and Chesterfield Inlet Basins. They further suggest that a declining trend in Eurasian snow cover extent will yield decreasing (increasing) SWE and river discharge in the Churchill River (Chesterfield Inlet) Basin in the 21st century. |
format |
Article in Journal/Newspaper |
author |
Déry, Stephen J. Sheffield, Justin Wood, Eric F. |
spellingShingle |
Déry, Stephen J. Sheffield, Justin Wood, Eric F. Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge |
author_facet |
Déry, Stephen J. Sheffield, Justin Wood, Eric F. |
author_sort |
Déry, Stephen J. |
title |
Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge |
title_short |
Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge |
title_full |
Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge |
title_fullStr |
Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge |
title_full_unstemmed |
Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge |
title_sort |
connectivity between eurasian snow cover extent and canadian snow water equivalent and river discharge |
publishDate |
2005 |
url |
https://eprints.soton.ac.uk/480729/ |
long_lat |
ENVELOPE(-90.705,-90.705,63.342,63.342) |
geographic |
Arctic Chesterfield Inlet Nunavut |
geographic_facet |
Arctic Chesterfield Inlet Nunavut |
genre |
Arctic Chesterfield Inlet Churchill River Nunavut |
genre_facet |
Arctic Chesterfield Inlet Churchill River Nunavut |
op_relation |
Déry, Stephen J., Sheffield, Justin and Wood, Eric F. (2005) Connectivity between Eurasian snow cover extent and Canadian snow water equivalent and river discharge. Journal of Geophysical Research Atmospheres, 110 (23), [D23106]. (doi:10.1029/2005JD006173 <http://dx.doi.org/10.1029/2005JD006173>). |
op_doi |
https://doi.org/10.1029/2005JD006173 |
container_title |
Journal of Geophysical Research |
container_volume |
110 |
container_issue |
D23 |
_version_ |
1775348465123983360 |