The triple oxygen isotope tracer of primary productivity in a dynamic ocean model
Author Posting. © American Geophysical Union, 2014. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycle 28 (2014): 538–552, doi:10.1002/2013GB004704. The triple oxygen is...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/6763 2023-05-15T17:36:11+02:00 The triple oxygen isotope tracer of primary productivity in a dynamic ocean model Nicholson, David P. Stanley, Rachel H. R. Doney, Scott C. 2014-05-23 application/pdf text/plain application/postscript application/msword https://hdl.handle.net/1912/6763 en_US eng John Wiley & Sons https://doi.org/10.1002/2013GB004704 Global Biogeochemical Cycle 28 (2014): 538–552 https://hdl.handle.net/1912/6763 doi:10.1002/2013GB004704 Global Biogeochemical Cycle 28 (2014): 538–552 doi:10.1002/2013GB004704 Primary production Triple oxygen isotope Photosynthesis Gross primary production Carbon Oxygen Article 2014 ftwhoas https://doi.org/10.1002/2013GB004704 2022-05-28T22:59:07Z Author Posting. © American Geophysical Union, 2014. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycle 28 (2014): 538–552, doi:10.1002/2013GB004704. The triple oxygen isotopic composition of dissolved oxygen (17Δdis) was added to the ocean ecosystem and biogeochemistry component of the Community Earth System Model, version 1.1.1. Model simulations were used to investigate the biological and physical dynamics of 17Δdis and assess its application as a tracer of gross photosynthetic production (gross oxygen production (GOP)) of O2 in the ocean mixed layer. The model reproduced large-scale patterns of 17Δdis found in observational data across diverse biogeographical provinces. Mixed layer model performance was best in the Pacific and had a negative bias in the North Atlantic and a positive bias in the Southern Ocean. Based on model results, the steady state equation commonly used to calculate GOP from tracer values overestimated the globally averaged model GOP by 29%. Vertical entrainment/mixing and the time rate of change of 17Δdis were the two largest sources of bias when applying the steady state method to calculate GOP. Entrainment/mixing resulted in the largest overestimation in midlatitudes and during summer and fall and almost never caused an underestimation of GOP. The tracer time rate of change bias resulted both in underestimation of GOP (e.g., during spring blooms at high latitudes) and overestimation (e.g., during the summer following a bloom). Seasonally, bias was highest in the fall (September-October-November in the Northern Hemisphere, March-April-May in the Southern), overestimating GOP by 62%, globally averaged. Overall, the steady state method was most accurate in equatorial and low-latitude regions where it estimated GOP to within ±10%. Field applicable correction terms are derived for entrainment and mixing that capture 86% of model vertical bias and require only ... Article in Journal/Newspaper North Atlantic Southern Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Pacific Southern Ocean Global Biogeochemical Cycles 28 5 538 552 |
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Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Primary production Triple oxygen isotope Photosynthesis Gross primary production Carbon Oxygen |
spellingShingle |
Primary production Triple oxygen isotope Photosynthesis Gross primary production Carbon Oxygen Nicholson, David P. Stanley, Rachel H. R. Doney, Scott C. The triple oxygen isotope tracer of primary productivity in a dynamic ocean model |
topic_facet |
Primary production Triple oxygen isotope Photosynthesis Gross primary production Carbon Oxygen |
description |
Author Posting. © American Geophysical Union, 2014. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycle 28 (2014): 538–552, doi:10.1002/2013GB004704. The triple oxygen isotopic composition of dissolved oxygen (17Δdis) was added to the ocean ecosystem and biogeochemistry component of the Community Earth System Model, version 1.1.1. Model simulations were used to investigate the biological and physical dynamics of 17Δdis and assess its application as a tracer of gross photosynthetic production (gross oxygen production (GOP)) of O2 in the ocean mixed layer. The model reproduced large-scale patterns of 17Δdis found in observational data across diverse biogeographical provinces. Mixed layer model performance was best in the Pacific and had a negative bias in the North Atlantic and a positive bias in the Southern Ocean. Based on model results, the steady state equation commonly used to calculate GOP from tracer values overestimated the globally averaged model GOP by 29%. Vertical entrainment/mixing and the time rate of change of 17Δdis were the two largest sources of bias when applying the steady state method to calculate GOP. Entrainment/mixing resulted in the largest overestimation in midlatitudes and during summer and fall and almost never caused an underestimation of GOP. The tracer time rate of change bias resulted both in underestimation of GOP (e.g., during spring blooms at high latitudes) and overestimation (e.g., during the summer following a bloom). Seasonally, bias was highest in the fall (September-October-November in the Northern Hemisphere, March-April-May in the Southern), overestimating GOP by 62%, globally averaged. Overall, the steady state method was most accurate in equatorial and low-latitude regions where it estimated GOP to within ±10%. Field applicable correction terms are derived for entrainment and mixing that capture 86% of model vertical bias and require only ... |
format |
Article in Journal/Newspaper |
author |
Nicholson, David P. Stanley, Rachel H. R. Doney, Scott C. |
author_facet |
Nicholson, David P. Stanley, Rachel H. R. Doney, Scott C. |
author_sort |
Nicholson, David P. |
title |
The triple oxygen isotope tracer of primary productivity in a dynamic ocean model |
title_short |
The triple oxygen isotope tracer of primary productivity in a dynamic ocean model |
title_full |
The triple oxygen isotope tracer of primary productivity in a dynamic ocean model |
title_fullStr |
The triple oxygen isotope tracer of primary productivity in a dynamic ocean model |
title_full_unstemmed |
The triple oxygen isotope tracer of primary productivity in a dynamic ocean model |
title_sort |
triple oxygen isotope tracer of primary productivity in a dynamic ocean model |
publisher |
John Wiley & Sons |
publishDate |
2014 |
url |
https://hdl.handle.net/1912/6763 |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_source |
Global Biogeochemical Cycle 28 (2014): 538–552 doi:10.1002/2013GB004704 |
op_relation |
https://doi.org/10.1002/2013GB004704 Global Biogeochemical Cycle 28 (2014): 538–552 https://hdl.handle.net/1912/6763 doi:10.1002/2013GB004704 |
op_doi |
https://doi.org/10.1002/2013GB004704 |
container_title |
Global Biogeochemical Cycles |
container_volume |
28 |
container_issue |
5 |
container_start_page |
538 |
op_container_end_page |
552 |
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1766135593810526208 |