Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso
Numerical simulations employing prognostic stable water isotopes can not only facilitate our understanding of hydrological processes and climate change but also allow for a direct comparison between isotope signals obtained from models and various archives. In the current work, we describe the perfo...
Published in: | Geoscientific Model Development |
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Copernicus Publications
2023
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Online Access: | https://oceanrep.geomar.de/id/eprint/59794/ https://oceanrep.geomar.de/id/eprint/59794/7/gmd-16-5153-2023-supplement.pdf https://oceanrep.geomar.de/id/eprint/59794/8/gmd-16-5153-2023.pdf https://doi.org/10.5194/gmd-16-5153-2023 |
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ftoceanrep:oai:oceanrep.geomar.de:59794 2024-02-11T09:57:21+01:00 Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso Shi, Xiaoxu Cauquoin, Alexandre Lohmann, Gerrit Jonkers, Lukas Wang, Qiang Yang, Hu Sun, Yuchen Werner, Martin 2023-09-08 text https://oceanrep.geomar.de/id/eprint/59794/ https://oceanrep.geomar.de/id/eprint/59794/7/gmd-16-5153-2023-supplement.pdf https://oceanrep.geomar.de/id/eprint/59794/8/gmd-16-5153-2023.pdf https://doi.org/10.5194/gmd-16-5153-2023 en eng Copernicus Publications https://oceanrep.geomar.de/id/eprint/59794/7/gmd-16-5153-2023-supplement.pdf https://oceanrep.geomar.de/id/eprint/59794/8/gmd-16-5153-2023.pdf Shi, X., Cauquoin, A., Lohmann, G., Jonkers, L., Wang, Q., Yang, H., Sun, Y. and Werner, M. (2023) Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso. Open Access Geoscientific Model Development, 16 (17). pp. 5153-5178. DOI 10.5194/gmd-16-5153-2023 <https://doi.org/10.5194/gmd-16-5153-2023>. doi:10.5194/gmd-16-5153-2023 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2023 ftoceanrep https://doi.org/10.5194/gmd-16-5153-2023 2024-01-22T00:22:40Z Numerical simulations employing prognostic stable water isotopes can not only facilitate our understanding of hydrological processes and climate change but also allow for a direct comparison between isotope signals obtained from models and various archives. In the current work, we describe the performance and explore the potential of a new version of the Earth system model AWI-ESM (Alfred Wegener Institute Earth System Model), labeled AWI-ESM-2.1-wiso, in which we incorporated three isotope tracers into all relevant components of the water cycle. We present here the results of pre-industrial (PI) and mid-Holocene (MH) simulations. The model reproduces the observed PI isotope compositions in both precipitation and seawater well and captures their major differences from the MH conditions. The simulated relationship between the isotope composition in precipitation (δ18Op) and surface air temperature is very similar between the PI and MH conditions, and it is largely consistent with modern observations despite some regional model biases. The ratio of the MH–PI difference in δ18Op to the MH–PI difference in surface air temperature is comparable to proxy records over Greenland and Antarctica only when summertime air temperature is considered. An amount effect is evident over the North African monsoon domain, where a negative correlation between δ18Op and the amount of precipitation is simulated. As an example of model applications, we studied the onset and withdrawal date of the MH West African summer monsoon (WASM) using daily variables. We find that defining the WASM onset based on precipitation alone may yield erroneous results due to the substantial daily variations in precipitation, which may obscure the distinction between pre-monsoon and monsoon seasons. Combining precipitation and isotope indicators, we suggest in this work a novel method for identifying the commencement of the WASM. Moreover, we do not find an obvious difference between the MH and PI periods in terms of the mean onset of the WASM. However, an ... Article in Journal/Newspaper Antarc* Antarctica Greenland OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Greenland Geoscientific Model Development 16 17 5153 5178 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Numerical simulations employing prognostic stable water isotopes can not only facilitate our understanding of hydrological processes and climate change but also allow for a direct comparison between isotope signals obtained from models and various archives. In the current work, we describe the performance and explore the potential of a new version of the Earth system model AWI-ESM (Alfred Wegener Institute Earth System Model), labeled AWI-ESM-2.1-wiso, in which we incorporated three isotope tracers into all relevant components of the water cycle. We present here the results of pre-industrial (PI) and mid-Holocene (MH) simulations. The model reproduces the observed PI isotope compositions in both precipitation and seawater well and captures their major differences from the MH conditions. The simulated relationship between the isotope composition in precipitation (δ18Op) and surface air temperature is very similar between the PI and MH conditions, and it is largely consistent with modern observations despite some regional model biases. The ratio of the MH–PI difference in δ18Op to the MH–PI difference in surface air temperature is comparable to proxy records over Greenland and Antarctica only when summertime air temperature is considered. An amount effect is evident over the North African monsoon domain, where a negative correlation between δ18Op and the amount of precipitation is simulated. As an example of model applications, we studied the onset and withdrawal date of the MH West African summer monsoon (WASM) using daily variables. We find that defining the WASM onset based on precipitation alone may yield erroneous results due to the substantial daily variations in precipitation, which may obscure the distinction between pre-monsoon and monsoon seasons. Combining precipitation and isotope indicators, we suggest in this work a novel method for identifying the commencement of the WASM. Moreover, we do not find an obvious difference between the MH and PI periods in terms of the mean onset of the WASM. However, an ... |
format |
Article in Journal/Newspaper |
author |
Shi, Xiaoxu Cauquoin, Alexandre Lohmann, Gerrit Jonkers, Lukas Wang, Qiang Yang, Hu Sun, Yuchen Werner, Martin |
spellingShingle |
Shi, Xiaoxu Cauquoin, Alexandre Lohmann, Gerrit Jonkers, Lukas Wang, Qiang Yang, Hu Sun, Yuchen Werner, Martin Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso |
author_facet |
Shi, Xiaoxu Cauquoin, Alexandre Lohmann, Gerrit Jonkers, Lukas Wang, Qiang Yang, Hu Sun, Yuchen Werner, Martin |
author_sort |
Shi, Xiaoxu |
title |
Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso |
title_short |
Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso |
title_full |
Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso |
title_fullStr |
Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso |
title_full_unstemmed |
Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso |
title_sort |
simulated stable water isotopes during the mid-holocene and pre-industrial periods using awi-esm-2.1-wiso |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://oceanrep.geomar.de/id/eprint/59794/ https://oceanrep.geomar.de/id/eprint/59794/7/gmd-16-5153-2023-supplement.pdf https://oceanrep.geomar.de/id/eprint/59794/8/gmd-16-5153-2023.pdf https://doi.org/10.5194/gmd-16-5153-2023 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_relation |
https://oceanrep.geomar.de/id/eprint/59794/7/gmd-16-5153-2023-supplement.pdf https://oceanrep.geomar.de/id/eprint/59794/8/gmd-16-5153-2023.pdf Shi, X., Cauquoin, A., Lohmann, G., Jonkers, L., Wang, Q., Yang, H., Sun, Y. and Werner, M. (2023) Simulated stable water isotopes during the mid-Holocene and pre-industrial periods using AWI-ESM-2.1-wiso. Open Access Geoscientific Model Development, 16 (17). pp. 5153-5178. DOI 10.5194/gmd-16-5153-2023 <https://doi.org/10.5194/gmd-16-5153-2023>. doi:10.5194/gmd-16-5153-2023 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/gmd-16-5153-2023 |
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Geoscientific Model Development |
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