Can Oxygen Utilization Rate Be Used to Track the Long‐Term Changes of Aerobic Respiration in the Mesopelagic Atlantic Ocean?
Quantifying changes in oceanic aerobic respiration is essential for understanding marine deoxygenation. Here we use an Earth system model to investigate if and to what extent oxygen utilization rate (OUR) can be used to track the temporal change of true respiration (Rtrue). Rtrue results from the de...
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American Geophysical Union (AGU)
2023
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Online Access: | https://doi.org/10.1029/2022GL102645 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2024-00119-4 https://macau.uni-kiel.de/receive/macau_mods_00004400 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005643/Geophysical%20Research%20Letters%20-%202023%20-%20Guo%20-%20Can%20Oxygen%20Utilization%20Rate%20Be%20Used%20to%20Track%20the%20Long‐Term%20Changes%20of%20Aerobic.pdf |
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ftunivkiel:oai:macau.uni-kiel.de:macau_mods_00004400 2024-06-23T07:55:07+00:00 Can Oxygen Utilization Rate Be Used to Track the Long‐Term Changes of Aerobic Respiration in the Mesopelagic Atlantic Ocean? Guo, Haichao Kriest, Iris Oschlies, Andreas Koeve, Wolfgang 2023 https://doi.org/10.1029/2022GL102645 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2024-00119-4 https://macau.uni-kiel.de/receive/macau_mods_00004400 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005643/Geophysical%20Research%20Letters%20-%202023%20-%20Guo%20-%20Can%20Oxygen%20Utilization%20Rate%20Be%20Used%20to%20Track%20the%20Long‐Term%20Changes%20of%20Aerobic.pdf eng eng American Geophysical Union (AGU) Geophysical research letters : GRL / American Geophysical Union. Ed. Noel W. Hinners -- Geophysical Research Letters -- 0094-8276 -- 1944-8007 https://doi.org/10.1029/2022GL102645 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2024-00119-4 https://macau.uni-kiel.de/receive/macau_mods_00004400 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005643/Geophysical%20Research%20Letters%20-%202023%20-%20Guo%20-%20Can%20Oxygen%20Utilization%20Rate%20Be%20Used%20to%20Track%20the%20Long‐Term%20Changes%20of%20Aerobic.pdf https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess article ScholarlyArticle Published Version ddc:550 mesopelagic respiration oxygen utilization rate Earth system model ocean deoxygenation article Text doc-type:Article 2023 ftunivkiel https://doi.org/10.1029/2022GL102645 2024-06-12T14:18:00Z Quantifying changes in oceanic aerobic respiration is essential for understanding marine deoxygenation. Here we use an Earth system model to investigate if and to what extent oxygen utilization rate (OUR) can be used to track the temporal change of true respiration (Rtrue). Rtrue results from the degradation of particulate and dissolved organic matter in the model ocean, acting as ground truth to evaluate the accuracy of OUR. Results show that in thermocline and intermediate waters of the North Atlantic Subtropical Gyre (200–1,000 m), vertically integrated OUR and Rtrue both decrease by 0.2 molO2/m2/yr from 1850 to 2100 under global warming. However, in the mesopelagic Tropical South Atlantic, integrated OUR increases by 0.2 molO2/m2/yr, while the Rtrue integral decreases by 0.3 molO2/m2/yr. A possible reason for the diverging OUR and Rtrue is ocean mixing, which affects water mass composition and maps remote respiration changes to the study region. Article in Journal/Newspaper North Atlantic MACAU: Open Access Repository of Kiel University Climate of the Past 14 10 1529 1542 |
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Open Polar |
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MACAU: Open Access Repository of Kiel University |
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ftunivkiel |
language |
English |
topic |
article ScholarlyArticle Published Version ddc:550 mesopelagic respiration oxygen utilization rate Earth system model ocean deoxygenation |
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article ScholarlyArticle Published Version ddc:550 mesopelagic respiration oxygen utilization rate Earth system model ocean deoxygenation Guo, Haichao Kriest, Iris Oschlies, Andreas Koeve, Wolfgang Can Oxygen Utilization Rate Be Used to Track the Long‐Term Changes of Aerobic Respiration in the Mesopelagic Atlantic Ocean? |
topic_facet |
article ScholarlyArticle Published Version ddc:550 mesopelagic respiration oxygen utilization rate Earth system model ocean deoxygenation |
description |
Quantifying changes in oceanic aerobic respiration is essential for understanding marine deoxygenation. Here we use an Earth system model to investigate if and to what extent oxygen utilization rate (OUR) can be used to track the temporal change of true respiration (Rtrue). Rtrue results from the degradation of particulate and dissolved organic matter in the model ocean, acting as ground truth to evaluate the accuracy of OUR. Results show that in thermocline and intermediate waters of the North Atlantic Subtropical Gyre (200–1,000 m), vertically integrated OUR and Rtrue both decrease by 0.2 molO2/m2/yr from 1850 to 2100 under global warming. However, in the mesopelagic Tropical South Atlantic, integrated OUR increases by 0.2 molO2/m2/yr, while the Rtrue integral decreases by 0.3 molO2/m2/yr. A possible reason for the diverging OUR and Rtrue is ocean mixing, which affects water mass composition and maps remote respiration changes to the study region. |
format |
Article in Journal/Newspaper |
author |
Guo, Haichao Kriest, Iris Oschlies, Andreas Koeve, Wolfgang |
author_facet |
Guo, Haichao Kriest, Iris Oschlies, Andreas Koeve, Wolfgang |
author_sort |
Guo, Haichao |
title |
Can Oxygen Utilization Rate Be Used to Track the Long‐Term Changes of Aerobic Respiration in the Mesopelagic Atlantic Ocean? |
title_short |
Can Oxygen Utilization Rate Be Used to Track the Long‐Term Changes of Aerobic Respiration in the Mesopelagic Atlantic Ocean? |
title_full |
Can Oxygen Utilization Rate Be Used to Track the Long‐Term Changes of Aerobic Respiration in the Mesopelagic Atlantic Ocean? |
title_fullStr |
Can Oxygen Utilization Rate Be Used to Track the Long‐Term Changes of Aerobic Respiration in the Mesopelagic Atlantic Ocean? |
title_full_unstemmed |
Can Oxygen Utilization Rate Be Used to Track the Long‐Term Changes of Aerobic Respiration in the Mesopelagic Atlantic Ocean? |
title_sort |
can oxygen utilization rate be used to track the long‐term changes of aerobic respiration in the mesopelagic atlantic ocean? |
publisher |
American Geophysical Union (AGU) |
publishDate |
2023 |
url |
https://doi.org/10.1029/2022GL102645 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2024-00119-4 https://macau.uni-kiel.de/receive/macau_mods_00004400 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005643/Geophysical%20Research%20Letters%20-%202023%20-%20Guo%20-%20Can%20Oxygen%20Utilization%20Rate%20Be%20Used%20to%20Track%20the%20Long‐Term%20Changes%20of%20Aerobic.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Geophysical research letters : GRL / American Geophysical Union. Ed. Noel W. Hinners -- Geophysical Research Letters -- 0094-8276 -- 1944-8007 https://doi.org/10.1029/2022GL102645 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2024-00119-4 https://macau.uni-kiel.de/receive/macau_mods_00004400 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005643/Geophysical%20Research%20Letters%20-%202023%20-%20Guo%20-%20Can%20Oxygen%20Utilization%20Rate%20Be%20Used%20to%20Track%20the%20Long‐Term%20Changes%20of%20Aerobic.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2022GL102645 |
container_title |
Climate of the Past |
container_volume |
14 |
container_issue |
10 |
container_start_page |
1529 |
op_container_end_page |
1542 |
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1802647566450425856 |