Link between the North Atlantic Oscillation and the surface mass balance components of the Greenland Ice Sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model
The relationship between the surface mass balance (SMB) components (accumulation and melting) of the Greenland Ice Sheet (GrIS) and the North Atlantic Oscillation (NAO) is examined from numerical simulations performed with a new atmospheric stretched grid configuration of the Centre National de Rech...
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ftdoajarticles:oai:doaj.org/article:aba2a0dec8cc4639a154a68af5d5af4c 2023-05-15T15:35:07+02:00 Link between the North Atlantic Oscillation and the surface mass balance components of the Greenland Ice Sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model S. Ramos Buarque D. Salas y Melia 2018-11-01T00:00:00Z https://doi.org/10.5194/cp-14-1707-2018 https://doaj.org/article/aba2a0dec8cc4639a154a68af5d5af4c EN eng Copernicus Publications https://www.clim-past.net/14/1707/2018/cp-14-1707-2018.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-14-1707-2018 1814-9324 1814-9332 https://doaj.org/article/aba2a0dec8cc4639a154a68af5d5af4c Climate of the Past, Vol 14, Pp 1707-1725 (2018) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2018 ftdoajarticles https://doi.org/10.5194/cp-14-1707-2018 2022-12-31T03:06:04Z The relationship between the surface mass balance (SMB) components (accumulation and melting) of the Greenland Ice Sheet (GrIS) and the North Atlantic Oscillation (NAO) is examined from numerical simulations performed with a new atmospheric stretched grid configuration of the Centre National de Recherches Météorologiques Coupled Model (CNRM-CM) version 5.2 under three periods: preindustrial climate, a warm phase (early Eemian, 130 ka BP) and a cool phase (late Eemian, 115 ka BP) of the last interglacial. The horizontal grid of the atmospheric component of CNRM-CM5.2 is stretched from the tilted pole on Baffin Bay (72° N, 65° W) in order to obtain a higher spatial resolution on Greenland. The correlation between simulated SMB anomalies averaged over Greenland and the NAO index is weak in winter and significant in summer (about 0.6 for the three periods). In summer, spatial correlations between the NAO index and SMB components display different patterns from one period to another. These differences are analyzed in terms of the respective influence of the positive and negative phases of the NAO on accumulation and melting. Accumulation in south Greenland is significantly correlated with the positive (negative) phase of the NAO in a warm (cold) climate. Under preindustrial and 115 ka BP climates, melting along the margins is more correlated with the positive phase of the NAO than with its negative phase, whereas at 130 ka BP it is more correlated with the negative phase of the NAO in north and northeast Greenland. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Greenland Ice Sheet North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Baffin Bay Greenland Climate of the Past 14 11 1707 1725 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 S. Ramos Buarque D. Salas y Melia Link between the North Atlantic Oscillation and the surface mass balance components of the Greenland Ice Sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
The relationship between the surface mass balance (SMB) components (accumulation and melting) of the Greenland Ice Sheet (GrIS) and the North Atlantic Oscillation (NAO) is examined from numerical simulations performed with a new atmospheric stretched grid configuration of the Centre National de Recherches Météorologiques Coupled Model (CNRM-CM) version 5.2 under three periods: preindustrial climate, a warm phase (early Eemian, 130 ka BP) and a cool phase (late Eemian, 115 ka BP) of the last interglacial. The horizontal grid of the atmospheric component of CNRM-CM5.2 is stretched from the tilted pole on Baffin Bay (72° N, 65° W) in order to obtain a higher spatial resolution on Greenland. The correlation between simulated SMB anomalies averaged over Greenland and the NAO index is weak in winter and significant in summer (about 0.6 for the three periods). In summer, spatial correlations between the NAO index and SMB components display different patterns from one period to another. These differences are analyzed in terms of the respective influence of the positive and negative phases of the NAO on accumulation and melting. Accumulation in south Greenland is significantly correlated with the positive (negative) phase of the NAO in a warm (cold) climate. Under preindustrial and 115 ka BP climates, melting along the margins is more correlated with the positive phase of the NAO than with its negative phase, whereas at 130 ka BP it is more correlated with the negative phase of the NAO in north and northeast Greenland. |
format |
Article in Journal/Newspaper |
author |
S. Ramos Buarque D. Salas y Melia |
author_facet |
S. Ramos Buarque D. Salas y Melia |
author_sort |
S. Ramos Buarque |
title |
Link between the North Atlantic Oscillation and the surface mass balance components of the Greenland Ice Sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model |
title_short |
Link between the North Atlantic Oscillation and the surface mass balance components of the Greenland Ice Sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model |
title_full |
Link between the North Atlantic Oscillation and the surface mass balance components of the Greenland Ice Sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model |
title_fullStr |
Link between the North Atlantic Oscillation and the surface mass balance components of the Greenland Ice Sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model |
title_full_unstemmed |
Link between the North Atlantic Oscillation and the surface mass balance components of the Greenland Ice Sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model |
title_sort |
link between the north atlantic oscillation and the surface mass balance components of the greenland ice sheet under preindustrial and last interglacial climates: a study with a coupled global circulation model |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-14-1707-2018 https://doaj.org/article/aba2a0dec8cc4639a154a68af5d5af4c |
geographic |
Baffin Bay Greenland |
geographic_facet |
Baffin Bay Greenland |
genre |
Baffin Bay Baffin Bay Baffin Greenland Ice Sheet North Atlantic North Atlantic oscillation |
genre_facet |
Baffin Bay Baffin Bay Baffin Greenland Ice Sheet North Atlantic North Atlantic oscillation |
op_source |
Climate of the Past, Vol 14, Pp 1707-1725 (2018) |
op_relation |
https://www.clim-past.net/14/1707/2018/cp-14-1707-2018.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-14-1707-2018 1814-9324 1814-9332 https://doaj.org/article/aba2a0dec8cc4639a154a68af5d5af4c |
op_doi |
https://doi.org/10.5194/cp-14-1707-2018 |
container_title |
Climate of the Past |
container_volume |
14 |
container_issue |
11 |
container_start_page |
1707 |
op_container_end_page |
1725 |
_version_ |
1766365409310670848 |