Palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the Nussloch loess sequence (Rhine Valley, Germany)
International audience A modified version of the Biome4 vegetation model for simulation of the mean delta(13)C of plant communities is presented, and used to reconstruct palaeoprecipitation. We treat all fractionations by C3 and C4 plants in all coexistent Plant Functional Types, weighted by their r...
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ftinsu:oai:HAL:hal-01457700v1 2024-04-28T08:16:55+00:00 Palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the Nussloch loess sequence (Rhine Valley, Germany) Hatté, Christine Guiot, Joel 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) Géochrononologie Traceurs Archéométrie (GEOTRAC) 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)) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2005-08 https://hal.science/hal-01457700 https://doi.org/10.1007/s00382-005-0034-3 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-005-0034-3 hal-01457700 https://hal.science/hal-01457700 doi:10.1007/s00382-005-0034-3 ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-01457700 Climate Dynamics, 2005, 25 (2-3), pp.315-327. ⟨10.1007/s00382-005-0034-3⟩ [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2005 ftinsu https://doi.org/10.1007/s00382-005-0034-3 2024-04-05T00:47:53Z International audience A modified version of the Biome4 vegetation model for simulation of the mean delta(13)C of plant communities is presented, and used to reconstruct palaeoprecipitation. We treat all fractionations by C3 and C4 plants in all coexistent Plant Functional Types, weighted by their respective net primary production. We constrain the range of variation in the intracellular versus atmospheric CO2 concentration by fixing a lower limit. Finally, we replace some constant parameters by functions of external forcing to account for their responses to environmental variation. The new version of Biome4 was applied as an inverse model and tested on three modern data sets. The fit between observations and simulations is very close to the 1:1 relationship, with respective slopes of 0.90 +/- 0.02 (r(2) = 0.98, n=29) for delta(13)C and 0.97 +/- 0.06 (r(2) = 0.90, n = 29) for precipitation. Inverse modelling was applied using the Metropolis-Hastings algorithm to the NuBloch loess sequence. Over the last glaciation, simulated palaeoprecipitation varies between 240 mm year(-1) and 400 min year(-1). This study clearly demonstrates atmospheric teleconnections with the Greenland ice-sheet extension, by matching Dansgaard-Oeschger events with precipitation increase of ca. 100-200 min year(-1). Article in Journal/Newspaper Dansgaard-Oeschger events Greenland Ice Sheet Institut national des sciences de l'Univers: HAL-INSU Climate Dynamics 25 2-3 315 327 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes Hatté, Christine Guiot, Joel Palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the Nussloch loess sequence (Rhine Valley, Germany) |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience A modified version of the Biome4 vegetation model for simulation of the mean delta(13)C of plant communities is presented, and used to reconstruct palaeoprecipitation. We treat all fractionations by C3 and C4 plants in all coexistent Plant Functional Types, weighted by their respective net primary production. We constrain the range of variation in the intracellular versus atmospheric CO2 concentration by fixing a lower limit. Finally, we replace some constant parameters by functions of external forcing to account for their responses to environmental variation. The new version of Biome4 was applied as an inverse model and tested on three modern data sets. The fit between observations and simulations is very close to the 1:1 relationship, with respective slopes of 0.90 +/- 0.02 (r(2) = 0.98, n=29) for delta(13)C and 0.97 +/- 0.06 (r(2) = 0.90, n = 29) for precipitation. Inverse modelling was applied using the Metropolis-Hastings algorithm to the NuBloch loess sequence. Over the last glaciation, simulated palaeoprecipitation varies between 240 mm year(-1) and 400 min year(-1). This study clearly demonstrates atmospheric teleconnections with the Greenland ice-sheet extension, by matching Dansgaard-Oeschger events with precipitation increase of ca. 100-200 min year(-1). |
author2 |
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) Géochrononologie Traceurs Archéométrie (GEOTRAC) 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)) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Hatté, Christine Guiot, Joel |
author_facet |
Hatté, Christine Guiot, Joel |
author_sort |
Hatté, Christine |
title |
Palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the Nussloch loess sequence (Rhine Valley, Germany) |
title_short |
Palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the Nussloch loess sequence (Rhine Valley, Germany) |
title_full |
Palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the Nussloch loess sequence (Rhine Valley, Germany) |
title_fullStr |
Palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the Nussloch loess sequence (Rhine Valley, Germany) |
title_full_unstemmed |
Palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the Nussloch loess sequence (Rhine Valley, Germany) |
title_sort |
palaeoprecipitation reconstruction by inverse modelling using the isotopic signal of loess organic matter: application to the nussloch loess sequence (rhine valley, germany) |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-01457700 https://doi.org/10.1007/s00382-005-0034-3 |
genre |
Dansgaard-Oeschger events Greenland Ice Sheet |
genre_facet |
Dansgaard-Oeschger events Greenland Ice Sheet |
op_source |
ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-01457700 Climate Dynamics, 2005, 25 (2-3), pp.315-327. ⟨10.1007/s00382-005-0034-3⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-005-0034-3 hal-01457700 https://hal.science/hal-01457700 doi:10.1007/s00382-005-0034-3 |
op_doi |
https://doi.org/10.1007/s00382-005-0034-3 |
container_title |
Climate Dynamics |
container_volume |
25 |
container_issue |
2-3 |
container_start_page |
315 |
op_container_end_page |
327 |
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1797581808028614656 |