Impact of precipitation intermittency on NAO-temperature signals in proxy records
International audience In mid and high latitudes, the stable isotope ratio in precipitation is driven by changes in temperature, which control atmospheric distillation. This relationship forms the basis for many continental paleoclimatic reconstructions using direct (e.g. ice cores) or indirect (e.g...
Published in: | Climate of the Past |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2013
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Online Access: | https://hal.archives-ouvertes.fr/hal-01096293 https://hal.archives-ouvertes.fr/hal-01096293/document https://hal.archives-ouvertes.fr/hal-01096293/file/cp-9-871-2013.pdf https://doi.org/10.5194/cp-9-871-2013 |
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[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology |
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[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology Casado, M. Ortega, P. Masson-Delmotte, Valérie Risi, C. Swingedouw, D. Daux, V. Genty, D. Maignan, F. Solomina, O. Vinther, B. Viovy, N. Yiou, P. Impact of precipitation intermittency on NAO-temperature signals in proxy records |
topic_facet |
[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology |
description |
International audience In mid and high latitudes, the stable isotope ratio in precipitation is driven by changes in temperature, which control atmospheric distillation. This relationship forms the basis for many continental paleoclimatic reconstructions using direct (e.g. ice cores) or indirect (e.g. tree ring cellulose, speleothem calcite) archives of past precipitation. However, the archiving process is inherently biased by intermittency of precipitation. Here, we use two sets of atmospheric reanalyses (NCEP (National Centers for Environmental Prediction) and ERA-interim) to quantify this precipitation intermittency bias, by comparing seasonal (winter and summer) temperatures estimated with and without precipitation weighting.We show that this bias reaches up to 10 C and has large interannual variability. We then assess the impact of precipitation intermittency on the strength and stability of temporal correlations between seasonal temperatures and the North Atlantic Oscillation (NAO). Precipitation weighting reduces the correlation between winter NAO and temperature in some areas (e.g. Quebec, South-East USA, East Greenland, East Siberia, Mediterranean sector) but does not alter the main patterns of correlation. The correlations between NAO, 18O in precipitation, temperature and precipitation weighted temperature are investigated using outputs of an atmospheric general circulation model enabled with stable isotopes and nudged using reanalyses (LMDZiso (Laboratoire de Meteorologie Dynamique Zoom)). In winter, LMDZiso shows similar correlation values between the NAO and both the precipitation weighted temperature and 18O in precipitation, thus suggesting limited impacts of moisture origin. Correlations of comparable magnitude are obtained for the available observational evidence (GNIP (Global Network of Isotopes in Precipitation) and Greenland ice core data). Our findings support the use of archives of past 18O for NAO reconstructions. © 2013 Author(s). |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École des Ponts ParisTech (ENPC)-École polytechnique (X)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC) Géochrononologie Traceurs Archéométrie (GEOTRAC) Modélisation des Surfaces et Interfaces Continentales (MOSAIC) Institute of Geography, Russian Academy of Sciences, Moscow, Russian Federation Centre for Ice and Climate Copenhagen Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (KU)-University of Copenhagen = Københavns Universitet (KU)-Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (KU)-University of Copenhagen = Københavns Universitet (KU) Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR) |
format |
Article in Journal/Newspaper |
author |
Casado, M. Ortega, P. Masson-Delmotte, Valérie Risi, C. Swingedouw, D. Daux, V. Genty, D. Maignan, F. Solomina, O. Vinther, B. Viovy, N. Yiou, P. |
author_facet |
Casado, M. Ortega, P. Masson-Delmotte, Valérie Risi, C. Swingedouw, D. Daux, V. Genty, D. Maignan, F. Solomina, O. Vinther, B. Viovy, N. Yiou, P. |
author_sort |
Casado, M. |
title |
Impact of precipitation intermittency on NAO-temperature signals in proxy records |
title_short |
Impact of precipitation intermittency on NAO-temperature signals in proxy records |
title_full |
Impact of precipitation intermittency on NAO-temperature signals in proxy records |
title_fullStr |
Impact of precipitation intermittency on NAO-temperature signals in proxy records |
title_full_unstemmed |
Impact of precipitation intermittency on NAO-temperature signals in proxy records |
title_sort |
impact of precipitation intermittency on nao-temperature signals in proxy records |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.archives-ouvertes.fr/hal-01096293 https://hal.archives-ouvertes.fr/hal-01096293/document https://hal.archives-ouvertes.fr/hal-01096293/file/cp-9-871-2013.pdf https://doi.org/10.5194/cp-9-871-2013 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland Greenland Greenland ice core ice core North Atlantic North Atlantic oscillation Siberia |
genre_facet |
East Greenland Greenland Greenland ice core ice core North Atlantic North Atlantic oscillation Siberia |
op_source |
ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.archives-ouvertes.fr/hal-01096293 Climate of the Past, European Geosciences Union (EGU), 2013, 9 (2), pp.871-886. ⟨10.5194/cp-9-871-2013⟩ |
op_relation |
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info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/cp-9-871-2013 |
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Climate of the Past |
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9 |
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871 |
op_container_end_page |
886 |
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ftccsdartic:oai:HAL:hal-01096293v1 2023-05-15T16:03:52+02:00 Impact of precipitation intermittency on NAO-temperature signals in proxy records Casado, M. Ortega, P. Masson-Delmotte, Valérie Risi, C. Swingedouw, D. Daux, V. Genty, D. Maignan, F. Solomina, O. Vinther, B. Viovy, N. Yiou, P. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École des Ponts ParisTech (ENPC)-École polytechnique (X)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC) Géochrononologie Traceurs Archéométrie (GEOTRAC) Modélisation des Surfaces et Interfaces Continentales (MOSAIC) Institute of Geography, Russian Academy of Sciences, Moscow, Russian Federation Centre for Ice and Climate Copenhagen Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (KU)-University of Copenhagen = Københavns Universitet (KU)-Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (KU)-University of Copenhagen = Københavns Universitet (KU) Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR) 2013 https://hal.archives-ouvertes.fr/hal-01096293 https://hal.archives-ouvertes.fr/hal-01096293/document https://hal.archives-ouvertes.fr/hal-01096293/file/cp-9-871-2013.pdf https://doi.org/10.5194/cp-9-871-2013 en eng HAL CCSD European Geosciences Union (EGU) info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-9-871-2013 hal-01096293 https://hal.archives-ouvertes.fr/hal-01096293 https://hal.archives-ouvertes.fr/hal-01096293/document https://hal.archives-ouvertes.fr/hal-01096293/file/cp-9-871-2013.pdf doi:10.5194/cp-9-871-2013 info:eu-repo/semantics/OpenAccess ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.archives-ouvertes.fr/hal-01096293 Climate of the Past, European Geosciences Union (EGU), 2013, 9 (2), pp.871-886. ⟨10.5194/cp-9-871-2013⟩ [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology info:eu-repo/semantics/article Journal articles 2013 ftccsdartic https://doi.org/10.5194/cp-9-871-2013 2021-12-19T02:59:28Z International audience In mid and high latitudes, the stable isotope ratio in precipitation is driven by changes in temperature, which control atmospheric distillation. This relationship forms the basis for many continental paleoclimatic reconstructions using direct (e.g. ice cores) or indirect (e.g. tree ring cellulose, speleothem calcite) archives of past precipitation. However, the archiving process is inherently biased by intermittency of precipitation. Here, we use two sets of atmospheric reanalyses (NCEP (National Centers for Environmental Prediction) and ERA-interim) to quantify this precipitation intermittency bias, by comparing seasonal (winter and summer) temperatures estimated with and without precipitation weighting.We show that this bias reaches up to 10 C and has large interannual variability. We then assess the impact of precipitation intermittency on the strength and stability of temporal correlations between seasonal temperatures and the North Atlantic Oscillation (NAO). Precipitation weighting reduces the correlation between winter NAO and temperature in some areas (e.g. Quebec, South-East USA, East Greenland, East Siberia, Mediterranean sector) but does not alter the main patterns of correlation. The correlations between NAO, 18O in precipitation, temperature and precipitation weighted temperature are investigated using outputs of an atmospheric general circulation model enabled with stable isotopes and nudged using reanalyses (LMDZiso (Laboratoire de Meteorologie Dynamique Zoom)). In winter, LMDZiso shows similar correlation values between the NAO and both the precipitation weighted temperature and 18O in precipitation, thus suggesting limited impacts of moisture origin. Correlations of comparable magnitude are obtained for the available observational evidence (GNIP (Global Network of Isotopes in Precipitation) and Greenland ice core data). Our findings support the use of archives of past 18O for NAO reconstructions. © 2013 Author(s). Article in Journal/Newspaper East Greenland Greenland Greenland ice core ice core North Atlantic North Atlantic oscillation Siberia Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Greenland Climate of the Past 9 2 871 886 |