Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1)
Neodymium (Nd) isotopic composition (εNd) is an important tracer for water mass mixing and the reconstruction of past ocean circulation. To allow for a direct model‐data comparison, we have implemented Nd isotopes in the ocean component of the Community Earth System Model (CESM1.3). The model is abl...
Published in: | Journal of Advances in Modeling Earth Systems |
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American Geophysical Union
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Online Access: | https://boris.unibe.ch/127645/8/gu19james.pdf https://boris.unibe.ch/127645/ |
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ftunivbern:oai:boris.unibe.ch:127645 2023-08-20T04:08:23+02:00 Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1) Gu, Sifan Liu, Zhengyu Jahn, Alexandra Rempfer, Johannes Zhang, Jiaxu Joos, Fortunat 2019 application/pdf https://boris.unibe.ch/127645/8/gu19james.pdf https://boris.unibe.ch/127645/ eng eng American Geophysical Union https://boris.unibe.ch/127645/ info:eu-repo/semantics/openAccess Gu, Sifan; Liu, Zhengyu; Jahn, Alexandra; Rempfer, Johannes; Zhang, Jiaxu; Joos, Fortunat; Rempfer, Johannes (2019). Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1). Journal of advances in modeling earth systems : JAMES, 11(3), pp. 624-640. American Geophysical Union 10.1029/2018MS001538 <http://dx.doi.org/10.1029/2018MS001538> 530 Physics 550 Earth sciences & geology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2019 ftunivbern https://doi.org/10.1029/2018MS001538 2023-07-31T21:50:48Z Neodymium (Nd) isotopic composition (εNd) is an important tracer for water mass mixing and the reconstruction of past ocean circulation. To allow for a direct model‐data comparison, we have implemented Nd isotopes in the ocean component of the Community Earth System Model (CESM1.3). The model is able to capture the major features of the observed modern distribution of both εNd and Nd concentrations. Our model provides a useful tool for the interpretation of εNd reconstructions. For example, we show that in an idealized North Atlantic freshwater hosing experiment, εNd changes in the Atlantic are documenting primarily the changes in water mass mixing and are hardly affected by the concomitant and large changes in the marine biological productivity and organic matter fluxes. However, the hosing experiment also shows that the end‐member changes due to the change of ocean circulation can influence the interpretation of εNd in the Atlantic, depending on the location. The implementation of Nd, together with other existing tracers, such as δ¹⁸O, ²³¹Pa/²³⁰Th, δ¹³C, and radiocarbon in the same model, can improve our understanding of past ocean circulation significantly. Article in Journal/Newspaper North Atlantic BORIS (Bern Open Repository and Information System, University of Bern) Journal of Advances in Modeling Earth Systems 11 3 624 640 |
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Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
530 Physics 550 Earth sciences & geology |
spellingShingle |
530 Physics 550 Earth sciences & geology Gu, Sifan Liu, Zhengyu Jahn, Alexandra Rempfer, Johannes Zhang, Jiaxu Joos, Fortunat Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1) |
topic_facet |
530 Physics 550 Earth sciences & geology |
description |
Neodymium (Nd) isotopic composition (εNd) is an important tracer for water mass mixing and the reconstruction of past ocean circulation. To allow for a direct model‐data comparison, we have implemented Nd isotopes in the ocean component of the Community Earth System Model (CESM1.3). The model is able to capture the major features of the observed modern distribution of both εNd and Nd concentrations. Our model provides a useful tool for the interpretation of εNd reconstructions. For example, we show that in an idealized North Atlantic freshwater hosing experiment, εNd changes in the Atlantic are documenting primarily the changes in water mass mixing and are hardly affected by the concomitant and large changes in the marine biological productivity and organic matter fluxes. However, the hosing experiment also shows that the end‐member changes due to the change of ocean circulation can influence the interpretation of εNd in the Atlantic, depending on the location. The implementation of Nd, together with other existing tracers, such as δ¹⁸O, ²³¹Pa/²³⁰Th, δ¹³C, and radiocarbon in the same model, can improve our understanding of past ocean circulation significantly. |
format |
Article in Journal/Newspaper |
author |
Gu, Sifan Liu, Zhengyu Jahn, Alexandra Rempfer, Johannes Zhang, Jiaxu Joos, Fortunat |
author_facet |
Gu, Sifan Liu, Zhengyu Jahn, Alexandra Rempfer, Johannes Zhang, Jiaxu Joos, Fortunat |
author_sort |
Gu, Sifan |
title |
Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1) |
title_short |
Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1) |
title_full |
Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1) |
title_fullStr |
Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1) |
title_full_unstemmed |
Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1) |
title_sort |
modeling neodymium isotopes in the ocean component of the community earth system model (cesm1) |
publisher |
American Geophysical Union |
publishDate |
2019 |
url |
https://boris.unibe.ch/127645/8/gu19james.pdf https://boris.unibe.ch/127645/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Gu, Sifan; Liu, Zhengyu; Jahn, Alexandra; Rempfer, Johannes; Zhang, Jiaxu; Joos, Fortunat; Rempfer, Johannes (2019). Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1). Journal of advances in modeling earth systems : JAMES, 11(3), pp. 624-640. American Geophysical Union 10.1029/2018MS001538 <http://dx.doi.org/10.1029/2018MS001538> |
op_relation |
https://boris.unibe.ch/127645/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2018MS001538 |
container_title |
Journal of Advances in Modeling Earth Systems |
container_volume |
11 |
container_issue |
3 |
container_start_page |
624 |
op_container_end_page |
640 |
_version_ |
1774720616850522112 |