Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso
International audience Ice core studies have proved the d 18 O in Greenland precipitation to be correlated to the phase of the North Atlantic Oscillation (NAO). This subject has also been investigated in modeling studies. However, these studies have either had severe biases in the d 18 O levels, or...
Published in: | Journal of Geophysical Research |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2011
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Online Access: | https://hal.science/hal-03103349 https://hal.science/hal-03103349/document https://hal.science/hal-03103349/file/2010JD015287.pdf https://doi.org/10.1029/2010JD015287 |
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ftuniversailles:oai:HAL:hal-03103349v1 |
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openpolar |
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Open Polar |
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Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
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ftuniversailles |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Sjolte, J. Hoffmann, G. Johnsen, S. Vinther, B. Masson-Delmotte, Valérie Sturm, C. Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Ice core studies have proved the d 18 O in Greenland precipitation to be correlated to the phase of the North Atlantic Oscillation (NAO). This subject has also been investigated in modeling studies. However, these studies have either had severe biases in the d 18 O levels, or have not been designed to be compared directly with observations. In this study we nudge a meso-scale climate model fitted with stable water isotope diagnostics (REMO-iso) to follow the actual weather patterns for the period 1959-2001. We evaluate this simulation using meteorological observations from stations along the Greenland coast, and d 18 O from several Greenland ice core stacks and Global Network In Precipitation (GNIP) data from Greenland, Iceland and Svalbard. The REMO-iso output explains up to 40% of the interannual d 18 O variability observed in ice cores, which is comparable to the model performance for precipitation. In terms of reproducing the observed variability the global model, ECHAM4-iso performs on the same level as REMO-iso. However, REMO-iso has smaller biases in d 18 O and improved representation of the observed spatial d 18 O-temperature slope compared to ECHAM4-iso. Analysis of the main modes of winter variability of d 18 O shows a coherent signal in Central and Western Greenland similar to results from ice cores. The NAO explains 20% of the leading d 18 O pattern. Based on the model output we suggest that methods to reconstruct the NAO from Greenland ice cores employ both d 18 O and accumulation records. |
author2 |
Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Institute for Marine and Atmospheric Research Utrecht (IMAU) Universiteit Utrecht / Utrecht University Utrecht Stockholm University |
format |
Article in Journal/Newspaper |
author |
Sjolte, J. Hoffmann, G. Johnsen, S. Vinther, B. Masson-Delmotte, Valérie Sturm, C. |
author_facet |
Sjolte, J. Hoffmann, G. Johnsen, S. Vinther, B. Masson-Delmotte, Valérie Sturm, C. |
author_sort |
Sjolte, J. |
title |
Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso |
title_short |
Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso |
title_full |
Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso |
title_fullStr |
Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso |
title_full_unstemmed |
Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso |
title_sort |
modeling the water isotopes in greenland precipitation 1959–2001 with the meso-scale model remo-iso |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.science/hal-03103349 https://hal.science/hal-03103349/document https://hal.science/hal-03103349/file/2010JD015287.pdf https://doi.org/10.1029/2010JD015287 |
genre |
Greenland Greenland ice core Greenland ice cores ice core Iceland North Atlantic North Atlantic oscillation Svalbard |
genre_facet |
Greenland Greenland ice core Greenland ice cores ice core Iceland North Atlantic North Atlantic oscillation Svalbard |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-03103349 Journal of Geophysical Research, 2011, 116 (D18), ⟨10.1029/2010JD015287⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JD015287 hal-03103349 https://hal.science/hal-03103349 https://hal.science/hal-03103349/document https://hal.science/hal-03103349/file/2010JD015287.pdf doi:10.1029/2010JD015287 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2010JD015287 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
D18 |
_version_ |
1797583413631254528 |
spelling |
ftuniversailles:oai:HAL:hal-03103349v1 2024-04-28T08:20:35+00:00 Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso Sjolte, J. Hoffmann, G. Johnsen, S. Vinther, B. Masson-Delmotte, Valérie Sturm, C. Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Institute for Marine and Atmospheric Research Utrecht (IMAU) Universiteit Utrecht / Utrecht University Utrecht Stockholm University 2011 https://hal.science/hal-03103349 https://hal.science/hal-03103349/document https://hal.science/hal-03103349/file/2010JD015287.pdf https://doi.org/10.1029/2010JD015287 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JD015287 hal-03103349 https://hal.science/hal-03103349 https://hal.science/hal-03103349/document https://hal.science/hal-03103349/file/2010JD015287.pdf doi:10.1029/2010JD015287 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-03103349 Journal of Geophysical Research, 2011, 116 (D18), ⟨10.1029/2010JD015287⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2011 ftuniversailles https://doi.org/10.1029/2010JD015287 2024-04-11T00:03:41Z International audience Ice core studies have proved the d 18 O in Greenland precipitation to be correlated to the phase of the North Atlantic Oscillation (NAO). This subject has also been investigated in modeling studies. However, these studies have either had severe biases in the d 18 O levels, or have not been designed to be compared directly with observations. In this study we nudge a meso-scale climate model fitted with stable water isotope diagnostics (REMO-iso) to follow the actual weather patterns for the period 1959-2001. We evaluate this simulation using meteorological observations from stations along the Greenland coast, and d 18 O from several Greenland ice core stacks and Global Network In Precipitation (GNIP) data from Greenland, Iceland and Svalbard. The REMO-iso output explains up to 40% of the interannual d 18 O variability observed in ice cores, which is comparable to the model performance for precipitation. In terms of reproducing the observed variability the global model, ECHAM4-iso performs on the same level as REMO-iso. However, REMO-iso has smaller biases in d 18 O and improved representation of the observed spatial d 18 O-temperature slope compared to ECHAM4-iso. Analysis of the main modes of winter variability of d 18 O shows a coherent signal in Central and Western Greenland similar to results from ice cores. The NAO explains 20% of the leading d 18 O pattern. Based on the model output we suggest that methods to reconstruct the NAO from Greenland ice cores employ both d 18 O and accumulation records. Article in Journal/Newspaper Greenland Greenland ice core Greenland ice cores ice core Iceland North Atlantic North Atlantic oscillation Svalbard Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Journal of Geophysical Research 116 D18 |