A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector
An atmospheric general circulation model (AGCM) sensitivity study has been performed with the ECHAM4 model forced by anomalous sea surface temperatures to investigate the role of the horizontal resolution (T42 versus T106) in determining the El Niño/Southern Oscillation (ENSO) response in the North...
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2002
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Online Access: | https://oceanrep.geomar.de/id/eprint/12849/ https://oceanrep.geomar.de/id/eprint/12849/1/2001GL013726.pdf https://doi.org/10.1029/2001GL013726 |
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ftoceanrep:oai:oceanrep.geomar.de:12849 2023-05-15T17:27:44+02:00 A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector Merkel, Ute Latif, Mojib 2002 text https://oceanrep.geomar.de/id/eprint/12849/ https://oceanrep.geomar.de/id/eprint/12849/1/2001GL013726.pdf https://doi.org/10.1029/2001GL013726 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/12849/1/2001GL013726.pdf Merkel, U. and Latif, M. (2002) A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector. Open Access Geophysical Research Letters, 29 (9). p. 1291. DOI 10.1029/2001GL013726 <https://doi.org/10.1029/2001GL013726>. doi:10.1029/2001GL013726 info:eu-repo/semantics/openAccess Article PeerReviewed 2002 ftoceanrep https://doi.org/10.1029/2001GL013726 2023-04-07T15:01:25Z An atmospheric general circulation model (AGCM) sensitivity study has been performed with the ECHAM4 model forced by anomalous sea surface temperatures to investigate the role of the horizontal resolution (T42 versus T106) in determining the El Niño/Southern Oscillation (ENSO) response in the North Atlantic/European region. The higher resolution has been chosen in order to represent more realistically the transient eddy activity that is supposed to play a crucial role in the signal communication to regions remote from the tropical Pacific. In contrast to the T42 experiments, the T106 experiments reveal significant changes both in the mean of selected atmospheric variables (sea level pressure, temperature, precipitation) over Europe and in the transient and stationary wave activity. A cyclone tracking analysis reveals a southward shift of the North Atlantic low pressure systems in the winter season during El Niño events. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Pacific Geophysical Research Letters 29 9 5-1 5-4 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
An atmospheric general circulation model (AGCM) sensitivity study has been performed with the ECHAM4 model forced by anomalous sea surface temperatures to investigate the role of the horizontal resolution (T42 versus T106) in determining the El Niño/Southern Oscillation (ENSO) response in the North Atlantic/European region. The higher resolution has been chosen in order to represent more realistically the transient eddy activity that is supposed to play a crucial role in the signal communication to regions remote from the tropical Pacific. In contrast to the T42 experiments, the T106 experiments reveal significant changes both in the mean of selected atmospheric variables (sea level pressure, temperature, precipitation) over Europe and in the transient and stationary wave activity. A cyclone tracking analysis reveals a southward shift of the North Atlantic low pressure systems in the winter season during El Niño events. |
format |
Article in Journal/Newspaper |
author |
Merkel, Ute Latif, Mojib |
spellingShingle |
Merkel, Ute Latif, Mojib A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector |
author_facet |
Merkel, Ute Latif, Mojib |
author_sort |
Merkel, Ute |
title |
A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector |
title_short |
A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector |
title_full |
A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector |
title_fullStr |
A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector |
title_full_unstemmed |
A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector |
title_sort |
high resolution agcm study of the el niño impact on the north atlantic/european sector |
publisher |
AGU (American Geophysical Union) |
publishDate |
2002 |
url |
https://oceanrep.geomar.de/id/eprint/12849/ https://oceanrep.geomar.de/id/eprint/12849/1/2001GL013726.pdf https://doi.org/10.1029/2001GL013726 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/12849/1/2001GL013726.pdf Merkel, U. and Latif, M. (2002) A high resolution AGCM study of the El Niño impact on the North Atlantic/European sector. Open Access Geophysical Research Letters, 29 (9). p. 1291. DOI 10.1029/2001GL013726 <https://doi.org/10.1029/2001GL013726>. doi:10.1029/2001GL013726 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2001GL013726 |
container_title |
Geophysical Research Letters |
container_volume |
29 |
container_issue |
9 |
container_start_page |
5-1 |
op_container_end_page |
5-4 |
_version_ |
1766120017452072960 |