Water isotope variations in the global ocean model MPI-OM
The stable water isotopes H218O and HDO are incorporated as passive tracers into the oceanic general circulation model MPI-OM, and a control simulation under present-day climate conditions is analyzed in detail. Both δ18O and δD distributions at the ocean surface and deep ocean are generally consist...
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Copernicus Publications
2012
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Online Access: | https://epic.awi.de/id/eprint/31207/ https://epic.awi.de/id/eprint/31207/1/gmd-5-809-2012.pdf http://www.geosci-model-dev.net/5/809/2012/gmd-5-809-2012.html https://hdl.handle.net/10013/epic.40034 https://hdl.handle.net/10013/epic.40034.d001 |
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ftawi:oai:epic.awi.de:31207 2023-05-15T15:05:18+02:00 Water isotope variations in the global ocean model MPI-OM Xu, Xu Werner, Martin Butzin, Martin Lohmann, Gerrit 2012 application/pdf https://epic.awi.de/id/eprint/31207/ https://epic.awi.de/id/eprint/31207/1/gmd-5-809-2012.pdf http://www.geosci-model-dev.net/5/809/2012/gmd-5-809-2012.html https://hdl.handle.net/10013/epic.40034 https://hdl.handle.net/10013/epic.40034.d001 unknown Copernicus Publications https://epic.awi.de/id/eprint/31207/1/gmd-5-809-2012.pdf https://hdl.handle.net/10013/epic.40034.d001 Xu, X. , Werner, M. orcid:0000-0002-6473-0243 , Butzin, M. orcid:0000-0002-9275-7304 and Lohmann, G. orcid:0000-0003-2089-733X (2012) Water isotope variations in the global ocean model MPI-OM , Geoscientific Model Development, 5 , pp. 809-818 . doi:10.5194/gmd-5-809-2012 <https://doi.org/10.5194/gmd-5-809-2012> , hdl:10013/epic.40034 EPIC3Geoscientific Model Development, Copernicus Publications, 5, pp. 809-818 Article isiRev 2012 ftawi https://doi.org/10.5194/gmd-5-809-2012 2021-12-24T15:37:58Z The stable water isotopes H218O and HDO are incorporated as passive tracers into the oceanic general circulation model MPI-OM, and a control simulation under present-day climate conditions is analyzed in detail. Both δ18O and δD distributions at the ocean surface and deep ocean are generally consistent with available observations on the large scale. The modelled δD-δ 18O relations in surface waters slightly deviates from the slope of the global meteoric water line in most basins, and a much steeper slope is detected in Arctic Oceans. The simulated deuterium excess of ocean surface waters shows small variations between 80° S and 55° N, and a strong decrease north of 55° N. The model is also able to capture the quasi-linear relationship between δ18O and salinity S, as well as δD and S, as seen in observational data. Both in the model results and observations, the surface δ−S relations show a steeper slope in extra-tropical regions than in tropical regions, which indicates relatively more addition of isotopically depleted water at high latitudes. Article in Journal/Newspaper Arctic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Geoscientific Model Development 5 3 809 818 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The stable water isotopes H218O and HDO are incorporated as passive tracers into the oceanic general circulation model MPI-OM, and a control simulation under present-day climate conditions is analyzed in detail. Both δ18O and δD distributions at the ocean surface and deep ocean are generally consistent with available observations on the large scale. The modelled δD-δ 18O relations in surface waters slightly deviates from the slope of the global meteoric water line in most basins, and a much steeper slope is detected in Arctic Oceans. The simulated deuterium excess of ocean surface waters shows small variations between 80° S and 55° N, and a strong decrease north of 55° N. The model is also able to capture the quasi-linear relationship between δ18O and salinity S, as well as δD and S, as seen in observational data. Both in the model results and observations, the surface δ−S relations show a steeper slope in extra-tropical regions than in tropical regions, which indicates relatively more addition of isotopically depleted water at high latitudes. |
format |
Article in Journal/Newspaper |
author |
Xu, Xu Werner, Martin Butzin, Martin Lohmann, Gerrit |
spellingShingle |
Xu, Xu Werner, Martin Butzin, Martin Lohmann, Gerrit Water isotope variations in the global ocean model MPI-OM |
author_facet |
Xu, Xu Werner, Martin Butzin, Martin Lohmann, Gerrit |
author_sort |
Xu, Xu |
title |
Water isotope variations in the global ocean model MPI-OM |
title_short |
Water isotope variations in the global ocean model MPI-OM |
title_full |
Water isotope variations in the global ocean model MPI-OM |
title_fullStr |
Water isotope variations in the global ocean model MPI-OM |
title_full_unstemmed |
Water isotope variations in the global ocean model MPI-OM |
title_sort |
water isotope variations in the global ocean model mpi-om |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/31207/ https://epic.awi.de/id/eprint/31207/1/gmd-5-809-2012.pdf http://www.geosci-model-dev.net/5/809/2012/gmd-5-809-2012.html https://hdl.handle.net/10013/epic.40034 https://hdl.handle.net/10013/epic.40034.d001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
EPIC3Geoscientific Model Development, Copernicus Publications, 5, pp. 809-818 |
op_relation |
https://epic.awi.de/id/eprint/31207/1/gmd-5-809-2012.pdf https://hdl.handle.net/10013/epic.40034.d001 Xu, X. , Werner, M. orcid:0000-0002-6473-0243 , Butzin, M. orcid:0000-0002-9275-7304 and Lohmann, G. orcid:0000-0003-2089-733X (2012) Water isotope variations in the global ocean model MPI-OM , Geoscientific Model Development, 5 , pp. 809-818 . doi:10.5194/gmd-5-809-2012 <https://doi.org/10.5194/gmd-5-809-2012> , hdl:10013/epic.40034 |
op_doi |
https://doi.org/10.5194/gmd-5-809-2012 |
container_title |
Geoscientific Model Development |
container_volume |
5 |
container_issue |
3 |
container_start_page |
809 |
op_container_end_page |
818 |
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