δ 18 O water isotope in the i LOVECLIM model (version 1.0) – Part 1: Implementation and verification
A new 18 O stable water isotope scheme is developed for three components of the i LOVECLIM coupled climate model: atmospheric, oceanic and land surface. The equations required to reproduce the fractionation of stable water isotopes in the simplified atmospheric model ECBilt are developed consistentl...
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ftdoajarticles:oai:doaj.org/article:d5d3edbc76734663ac4bfaca9efbf564 2023-05-15T13:35:05+02:00 δ 18 O water isotope in the i LOVECLIM model (version 1.0) – Part 1: Implementation and verification D. M. Roche 2013-09-01T00:00:00Z https://doi.org/10.5194/gmd-6-1481-2013 https://doaj.org/article/d5d3edbc76734663ac4bfaca9efbf564 EN eng Copernicus Publications http://www.geosci-model-dev.net/6/1481/2013/gmd-6-1481-2013.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-6-1481-2013 1991-959X 1991-9603 https://doaj.org/article/d5d3edbc76734663ac4bfaca9efbf564 Geoscientific Model Development, Vol 6, Iss 5, Pp 1481-1491 (2013) Geology QE1-996.5 article 2013 ftdoajarticles https://doi.org/10.5194/gmd-6-1481-2013 2022-12-31T03:25:09Z A new 18 O stable water isotope scheme is developed for three components of the i LOVECLIM coupled climate model: atmospheric, oceanic and land surface. The equations required to reproduce the fractionation of stable water isotopes in the simplified atmospheric model ECBilt are developed consistently with the moisture scheme. Simplifications in the processes are made to account for the simplified vertical structure including only one moist layer. Implementation of these equations together with a passive tracer scheme for the ocean and a equilibrium fractionation scheme for the land surface leads to the closure of the (isotopic-) water budget in our climate system. Following the implementation, verification of the existence of usual δ 18 O to climatic relationships are performed for the Rayleigh distillation, the Dansgaard relationship and the δ 18 O –salinity relationship. Advantages and caveats of the approach taken are outlined. The isotopic fields simulated are shown to reproduce most expected oxygen-18–climate relationships with the notable exception of the isotopic composition in Antarctica. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Geoscientific Model Development 6 5 1481 1491 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 D. M. Roche δ 18 O water isotope in the i LOVECLIM model (version 1.0) – Part 1: Implementation and verification |
topic_facet |
Geology QE1-996.5 |
description |
A new 18 O stable water isotope scheme is developed for three components of the i LOVECLIM coupled climate model: atmospheric, oceanic and land surface. The equations required to reproduce the fractionation of stable water isotopes in the simplified atmospheric model ECBilt are developed consistently with the moisture scheme. Simplifications in the processes are made to account for the simplified vertical structure including only one moist layer. Implementation of these equations together with a passive tracer scheme for the ocean and a equilibrium fractionation scheme for the land surface leads to the closure of the (isotopic-) water budget in our climate system. Following the implementation, verification of the existence of usual δ 18 O to climatic relationships are performed for the Rayleigh distillation, the Dansgaard relationship and the δ 18 O –salinity relationship. Advantages and caveats of the approach taken are outlined. The isotopic fields simulated are shown to reproduce most expected oxygen-18–climate relationships with the notable exception of the isotopic composition in Antarctica. |
format |
Article in Journal/Newspaper |
author |
D. M. Roche |
author_facet |
D. M. Roche |
author_sort |
D. M. Roche |
title |
δ 18 O water isotope in the i LOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_short |
δ 18 O water isotope in the i LOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_full |
δ 18 O water isotope in the i LOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_fullStr |
δ 18 O water isotope in the i LOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_full_unstemmed |
δ 18 O water isotope in the i LOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_sort |
δ 18 o water isotope in the i loveclim model (version 1.0) – part 1: implementation and verification |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/gmd-6-1481-2013 https://doaj.org/article/d5d3edbc76734663ac4bfaca9efbf564 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Geoscientific Model Development, Vol 6, Iss 5, Pp 1481-1491 (2013) |
op_relation |
http://www.geosci-model-dev.net/6/1481/2013/gmd-6-1481-2013.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-6-1481-2013 1991-959X 1991-9603 https://doaj.org/article/d5d3edbc76734663ac4bfaca9efbf564 |
op_doi |
https://doi.org/10.5194/gmd-6-1481-2013 |
container_title |
Geoscientific Model Development |
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6 |
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5 |
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1481 |
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1491 |
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1766060782719598592 |