Arctic Ocean Response to Greenland Sea Wind Anomalies in a Suite of Model Simulations
Multimodel Arctic Ocean “climate response function” experiments are analyzed in order to explore the effects of anomalous wind forcing over the Greenland Sea (GS) on poleward ocean heat transport, Atlantic Water (AW) pathways, and the extent of Arctic sea ice. Particular emphasis is placed on the se...
Main Authors: | , , , , , , , , , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | https://era.library.ualberta.ca/items/a43588ac-57f7-466f-bf38-68e300532f6e https://doi.org/10.7939/r3-c6mn-fb50 |
id |
ftunivalberta:oai:era.library.ualberta.ca:a43588ac-57f7-466f-bf38-68e300532f6e |
---|---|
record_format |
openpolar |
spelling |
ftunivalberta:oai:era.library.ualberta.ca:a43588ac-57f7-466f-bf38-68e300532f6e 2024-06-23T07:49:35+00:00 Arctic Ocean Response to Greenland Sea Wind Anomalies in a Suite of Model Simulations Muilwijk, Morven Ilicak, Mehmet Cornish, Sam B. Danilov, Sergey Gelderloos, Renske Gerdes, Rudiger Haid, Verena Haine, Thomas W. N. Johnson, Helen L. Kostov, Yavor Kovacs, Tamas Lique, Camille Marson, Juliana M. Myers, Paul G. Scott, Jeffery Smedsrud, Lars H. Talandier, Claude Wang, Qiang 2019-01-01 https://era.library.ualberta.ca/items/a43588ac-57f7-466f-bf38-68e300532f6e https://doi.org/10.7939/r3-c6mn-fb50 English eng https://era.library.ualberta.ca/items/a43588ac-57f7-466f-bf38-68e300532f6e doi:10.7939/r3-c6mn-fb50 © 2019. American Geophysical Union. All Rights Reserved. Arctic Ocean Atlantic Water FAMOS Model intercomparison Sea ice Wind forcing Article (Published) 2019 ftunivalberta https://doi.org/10.7939/r3-c6mn-fb50 2024-06-03T03:09:00Z Multimodel Arctic Ocean “climate response function” experiments are analyzed in order to explore the effects of anomalous wind forcing over the Greenland Sea (GS) on poleward ocean heat transport, Atlantic Water (AW) pathways, and the extent of Arctic sea ice. Particular emphasis is placed on the sensitivity of the AW circulation to anomalously strong or weak GS winds in relation to natural variability, the latter manifested as part of the North Atlantic Oscillation. We find that anomalously strong (weak) GS wind forcing, comparable in strength to a strong positive (negative) North Atlantic Oscillation index, results in an intensification (weakening) of the poleward AW flow, extending from south of the North Atlantic Subpolar Gyre, through the Nordic Seas, and all the way into the Canadian Basin. Reconstructions made utilizing the calculated climate response functions explain ∼50% of the simulated AW flow variance; this is the proportion of variability that can be explained by GS wind forcing. In the Barents and Kara Seas, there is a clear relationship between the wind-driven anomalous AW inflow and the sea ice extent. Most of the anomalous AW heat is lost to the atmosphere, and loss of sea ice in the Barents Sea results in even more heat loss to the atmosphere, and thus effective ocean cooling. Release of passive tracers in a subset of the suite of models reveals differences in circulation patterns and shows that the flow of AW in the Arctic Ocean is highly dependent on the wind stress in the Nordic Seas. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Nordic Seas North Atlantic North Atlantic oscillation Sea ice University of Alberta: Era - Education and Research Archive Arctic Arctic Ocean Barents Sea Greenland |
institution |
Open Polar |
collection |
University of Alberta: Era - Education and Research Archive |
op_collection_id |
ftunivalberta |
language |
English |
topic |
Arctic Ocean Atlantic Water FAMOS Model intercomparison Sea ice Wind forcing |
spellingShingle |
Arctic Ocean Atlantic Water FAMOS Model intercomparison Sea ice Wind forcing Muilwijk, Morven Ilicak, Mehmet Cornish, Sam B. Danilov, Sergey Gelderloos, Renske Gerdes, Rudiger Haid, Verena Haine, Thomas W. N. Johnson, Helen L. Kostov, Yavor Kovacs, Tamas Lique, Camille Marson, Juliana M. Myers, Paul G. Scott, Jeffery Smedsrud, Lars H. Talandier, Claude Wang, Qiang Arctic Ocean Response to Greenland Sea Wind Anomalies in a Suite of Model Simulations |
topic_facet |
Arctic Ocean Atlantic Water FAMOS Model intercomparison Sea ice Wind forcing |
description |
Multimodel Arctic Ocean “climate response function” experiments are analyzed in order to explore the effects of anomalous wind forcing over the Greenland Sea (GS) on poleward ocean heat transport, Atlantic Water (AW) pathways, and the extent of Arctic sea ice. Particular emphasis is placed on the sensitivity of the AW circulation to anomalously strong or weak GS winds in relation to natural variability, the latter manifested as part of the North Atlantic Oscillation. We find that anomalously strong (weak) GS wind forcing, comparable in strength to a strong positive (negative) North Atlantic Oscillation index, results in an intensification (weakening) of the poleward AW flow, extending from south of the North Atlantic Subpolar Gyre, through the Nordic Seas, and all the way into the Canadian Basin. Reconstructions made utilizing the calculated climate response functions explain ∼50% of the simulated AW flow variance; this is the proportion of variability that can be explained by GS wind forcing. In the Barents and Kara Seas, there is a clear relationship between the wind-driven anomalous AW inflow and the sea ice extent. Most of the anomalous AW heat is lost to the atmosphere, and loss of sea ice in the Barents Sea results in even more heat loss to the atmosphere, and thus effective ocean cooling. Release of passive tracers in a subset of the suite of models reveals differences in circulation patterns and shows that the flow of AW in the Arctic Ocean is highly dependent on the wind stress in the Nordic Seas. |
format |
Article in Journal/Newspaper |
author |
Muilwijk, Morven Ilicak, Mehmet Cornish, Sam B. Danilov, Sergey Gelderloos, Renske Gerdes, Rudiger Haid, Verena Haine, Thomas W. N. Johnson, Helen L. Kostov, Yavor Kovacs, Tamas Lique, Camille Marson, Juliana M. Myers, Paul G. Scott, Jeffery Smedsrud, Lars H. Talandier, Claude Wang, Qiang |
author_facet |
Muilwijk, Morven Ilicak, Mehmet Cornish, Sam B. Danilov, Sergey Gelderloos, Renske Gerdes, Rudiger Haid, Verena Haine, Thomas W. N. Johnson, Helen L. Kostov, Yavor Kovacs, Tamas Lique, Camille Marson, Juliana M. Myers, Paul G. Scott, Jeffery Smedsrud, Lars H. Talandier, Claude Wang, Qiang |
author_sort |
Muilwijk, Morven |
title |
Arctic Ocean Response to Greenland Sea Wind Anomalies in a Suite of Model Simulations |
title_short |
Arctic Ocean Response to Greenland Sea Wind Anomalies in a Suite of Model Simulations |
title_full |
Arctic Ocean Response to Greenland Sea Wind Anomalies in a Suite of Model Simulations |
title_fullStr |
Arctic Ocean Response to Greenland Sea Wind Anomalies in a Suite of Model Simulations |
title_full_unstemmed |
Arctic Ocean Response to Greenland Sea Wind Anomalies in a Suite of Model Simulations |
title_sort |
arctic ocean response to greenland sea wind anomalies in a suite of model simulations |
publishDate |
2019 |
url |
https://era.library.ualberta.ca/items/a43588ac-57f7-466f-bf38-68e300532f6e https://doi.org/10.7939/r3-c6mn-fb50 |
geographic |
Arctic Arctic Ocean Barents Sea Greenland |
geographic_facet |
Arctic Arctic Ocean Barents Sea Greenland |
genre |
Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Nordic Seas North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Nordic Seas North Atlantic North Atlantic oscillation Sea ice |
op_relation |
https://era.library.ualberta.ca/items/a43588ac-57f7-466f-bf38-68e300532f6e doi:10.7939/r3-c6mn-fb50 |
op_rights |
© 2019. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.7939/r3-c6mn-fb50 |
_version_ |
1802640065216643072 |