Late-glacial to late-Holocene shifts in global precipitation δ 18 O
International audience Reconstructions of Quaternary climate are often based on the isotopic content of paleo-precipitation preserved in proxy records. While many paleo-precipitation isotope records are available, few studies have synthesized these dispersed records to explore spatial patterns of la...
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ftinsu:oai:HAL:hal-04114714v1 2023-06-18T03:41:11+02:00 Late-glacial to late-Holocene shifts in global precipitation δ 18 O Jasechko, S. Lechler, A. Pausata, F. S. R. Fawcett, P. J. Gleeson, T. Cendón, D. I. Galewsky, J. Legrande, A. N. Risi, C. Sharp, Z. D. Welker, J. M. Werner, M. Yoshimura, K. Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) 2015 https://hal.science/hal-04114714 https://doi.org/10.5194/cp-11-1375-201510.5194/cpd-11-831-2015 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-11-1375-201510.5194/cpd-11-831-2015 hal-04114714 https://hal.science/hal-04114714 BIBCODE: 2015CliPa.11.1375J doi:10.5194/cp-11-1375-201510.5194/cpd-11-831-2015 Climate of the Past https://hal.science/hal-04114714 Climate of the Past, 2015, 11, pp.1375-1393. ⟨10.5194/cp-11-1375-201510.5194/cpd-11-831-2015⟩ Earth Science [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2015 ftinsu https://doi.org/10.5194/cp-11-1375-201510.5194/cpd-11-831-2015 2023-06-05T19:25:57Z International audience Reconstructions of Quaternary climate are often based on the isotopic content of paleo-precipitation preserved in proxy records. While many paleo-precipitation isotope records are available, few studies have synthesized these dispersed records to explore spatial patterns of late-glacial precipitation δ 18 O. Here we present a synthesis of 86 globally distributed groundwater (n = 59), cave calcite (n = 15) and ice core (n = 12) isotope records spanning the late-glacial (defined as ~ 50 000 to ~ 20 000 years ago) to the late-Holocene (within the past ~ 5000 years). We show that precipitation δ 18 O changes from the late-glacial to the late-Holocene range from -7.1 ‰ (δ 18 O late-Holocene > δ 18 O late-glacial ) to +1.7 ‰ (δ 18 O late-glacial > δ 18 O late-Holocene ), with the majority (77 %) of records having lower late-glacial δ 18 O than late-Holocene δ 18 O values. High-magnitude, negative precipitation δ 18 O shifts are common at high latitudes, high altitudes and continental interiors (δ 18 O late-Holocene > δ 18 O late-glacial by more than 3 ‰). Conversely, low-magnitude, positive precipitation δ 18 O shifts are concentrated along tropical and subtropical coasts (δ 18 O late-glacial > δ 18 O late-Holocene by less than 2 ‰). Broad, global patterns of late-glacial to late-Holocene precipitation δ 18 O shifts suggest that stronger-than-modern isotopic distillation of air masses prevailed during the late-glacial, likely impacted by larger global temperature differences between the tropics and the poles. Further, to test how well general circulation models reproduce global precipitation δ 18 O shifts, we compiled simulated precipitation δ 18 O shifts from five isotope-enabled general circulation models simulated under recent and last glacial maximum climate states. Climate simulations generally show better inter-model and model-measurement agreement in temperate regions than in the tropics, highlighting a need for further research to better understand how inter-model spread in ... Article in Journal/Newspaper ice core Institut national des sciences de l'Univers: HAL-INSU |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Earth Science [SDU]Sciences of the Universe [physics] |
spellingShingle |
Earth Science [SDU]Sciences of the Universe [physics] Jasechko, S. Lechler, A. Pausata, F. S. R. Fawcett, P. J. Gleeson, T. Cendón, D. I. Galewsky, J. Legrande, A. N. Risi, C. Sharp, Z. D. Welker, J. M. Werner, M. Yoshimura, K. Late-glacial to late-Holocene shifts in global precipitation δ 18 O |
topic_facet |
Earth Science [SDU]Sciences of the Universe [physics] |
description |
International audience Reconstructions of Quaternary climate are often based on the isotopic content of paleo-precipitation preserved in proxy records. While many paleo-precipitation isotope records are available, few studies have synthesized these dispersed records to explore spatial patterns of late-glacial precipitation δ 18 O. Here we present a synthesis of 86 globally distributed groundwater (n = 59), cave calcite (n = 15) and ice core (n = 12) isotope records spanning the late-glacial (defined as ~ 50 000 to ~ 20 000 years ago) to the late-Holocene (within the past ~ 5000 years). We show that precipitation δ 18 O changes from the late-glacial to the late-Holocene range from -7.1 ‰ (δ 18 O late-Holocene > δ 18 O late-glacial ) to +1.7 ‰ (δ 18 O late-glacial > δ 18 O late-Holocene ), with the majority (77 %) of records having lower late-glacial δ 18 O than late-Holocene δ 18 O values. High-magnitude, negative precipitation δ 18 O shifts are common at high latitudes, high altitudes and continental interiors (δ 18 O late-Holocene > δ 18 O late-glacial by more than 3 ‰). Conversely, low-magnitude, positive precipitation δ 18 O shifts are concentrated along tropical and subtropical coasts (δ 18 O late-glacial > δ 18 O late-Holocene by less than 2 ‰). Broad, global patterns of late-glacial to late-Holocene precipitation δ 18 O shifts suggest that stronger-than-modern isotopic distillation of air masses prevailed during the late-glacial, likely impacted by larger global temperature differences between the tropics and the poles. Further, to test how well general circulation models reproduce global precipitation δ 18 O shifts, we compiled simulated precipitation δ 18 O shifts from five isotope-enabled general circulation models simulated under recent and last glacial maximum climate states. Climate simulations generally show better inter-model and model-measurement agreement in temperate regions than in the tropics, highlighting a need for further research to better understand how inter-model spread in ... |
author2 |
Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Jasechko, S. Lechler, A. Pausata, F. S. R. Fawcett, P. J. Gleeson, T. Cendón, D. I. Galewsky, J. Legrande, A. N. Risi, C. Sharp, Z. D. Welker, J. M. Werner, M. Yoshimura, K. |
author_facet |
Jasechko, S. Lechler, A. Pausata, F. S. R. Fawcett, P. J. Gleeson, T. Cendón, D. I. Galewsky, J. Legrande, A. N. Risi, C. Sharp, Z. D. Welker, J. M. Werner, M. Yoshimura, K. |
author_sort |
Jasechko, S. |
title |
Late-glacial to late-Holocene shifts in global precipitation δ 18 O |
title_short |
Late-glacial to late-Holocene shifts in global precipitation δ 18 O |
title_full |
Late-glacial to late-Holocene shifts in global precipitation δ 18 O |
title_fullStr |
Late-glacial to late-Holocene shifts in global precipitation δ 18 O |
title_full_unstemmed |
Late-glacial to late-Holocene shifts in global precipitation δ 18 O |
title_sort |
late-glacial to late-holocene shifts in global precipitation δ 18 o |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-04114714 https://doi.org/10.5194/cp-11-1375-201510.5194/cpd-11-831-2015 |
genre |
ice core |
genre_facet |
ice core |
op_source |
Climate of the Past https://hal.science/hal-04114714 Climate of the Past, 2015, 11, pp.1375-1393. ⟨10.5194/cp-11-1375-201510.5194/cpd-11-831-2015⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-11-1375-201510.5194/cpd-11-831-2015 hal-04114714 https://hal.science/hal-04114714 BIBCODE: 2015CliPa.11.1375J doi:10.5194/cp-11-1375-201510.5194/cpd-11-831-2015 |
op_doi |
https://doi.org/10.5194/cp-11-1375-201510.5194/cpd-11-831-2015 |
_version_ |
1769006659476127744 |