| Title: |
Simulations of ocean deoxygenation in the historical era: insights from forced and coupled models |
| Authors: |
Takano, Yohei; Ilyina, Tatiana; Tjiputra, Jerry; Eddebbar, Yassir, A; Berthet, Sarah; Bopp, Laurent; Buitenhuis, Erik; Butenschön, Momme; Christian, James, R; Dunne, John, P; Hayashida, Hakase; Gröger, Matthias; Hieronymus, Jenny; Koenigk, Torben; Krasting, John, P; Long, Mathew, C; Lovato, Tomas; Nakano, Hideyuki; Palmieri, Julien; Schwinger, Jörg; Séférian, Roland; Suntharalingam, Parvadha; Tatebe, Hiroaki; Tsujino, Hiroyuki; Urakawa, Shogo; Watanabe, Michio; Yool, Andrew |
| Contributors: |
Los Alamos National Laboratory (LANL); Max Planck Institute for Meteorology (MPI-M); Max-Planck-Gesellschaft; British Antarctic Survey (BAS); Natural Environment Research Council (NERC); Center for Earth System Research and Sustainability (CEN); Universität Hamburg = University of Hamburg (UHH); Helmholtz-Zentrum Hereon; Bjerknes Centre for Climate Research (BCCR); Department of Biological Sciences Bergen (BIO / UiB); University of Bergen (UiB)-University of Bergen (UiB); Scripps Institution of Oceanography (SIO - UC San Diego); University of California San Diego (UC San Diego); University of California (UC)-University of California (UC); Centre national de recherches météorologiques (CNRM); Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP); Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3); Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3); Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Météo-France; Laboratoire de Météorologie Dynamique (UMR 8539) (LMD); Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X); Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École nationale des ponts et chaussées (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS-PSL; École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL); School of Environmental Sciences Norwich; University of East Anglia Norwich (UEA); Centro Euro-Mediterraneo per i Cambiamenti Climatici Bologna (CMCC); Fisheries and Oceans Canada = Pêches et Océans Canada Ottawa (DFO-MPO); Canadian Centre for Climate Modelling and Analysis (CCCma); Environment and Climate Change Canada (ECCC); NOAA Geophysical Fluid Dynamics Laboratory (GFDL); National Oceanic and Atmospheric Administration (NOAA); Japan Agency for Marine-Earth Science and Technology (JAMSTEC); Institute for Marine and Antarctic Studies Hobart (IMAS); University of Tasmania Hobart (UTAS); Leibniz Institute for Baltic Sea Research Warnemünde (IOW); Swedish Meteorological and Hydrological Institute (SMHI); Bolin Centre for Climate Research; Stockholm University; National Center for Atmospheric Research Boulder (NCAR); Meteorological Research Institute Tsukuba (MRI); Japan Meteorological Agency (JMA); National Oceanography Centre Southampton (NOC); University of Southampton |
| Source: |
ISSN: 2296-7745 ; Frontiers in Marine Science ; https://meteofrance.hal.science/meteo-04443485 ; Frontiers in Marine Science, 2023, 10, ⟨10.3389/fmars.2023.1139917⟩. |
| Publisher Information: |
CCSD; Frontiers Media |
| Publication Year: |
2023 |
| Collection: |
Université Toulouse III - Paul Sabatier: HAL-UPS |
| Subject Terms: |
ocean deoxygenation; ocean warming; model spin-up; model’s equilibrium states; ocean and coupled model simulations; [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation |
| Description: |
International audience ; Ocean deoxygenation due to anthropogenic warming represents a major threat to marine ecosystems and fisheries. Challenges remain in simulating the modern observed changes in the dissolved oxygen (O 2 ). Here, we present an analysis of upper ocean (0-700m) deoxygenation in recent decades from a suite of the Coupled Model Intercomparison Project phase 6 (CMIP6) ocean biogeochemical simulations. The physics and biogeochemical simulations include both ocean-only (the Ocean Model Intercomparison Project Phase 1 and 2, OMIP1 and OMIP2) and coupled Earth system (CMIP6 Historical) configurations. We examine simulated changes in the O 2 inventory and ocean heat content (OHC) over the past 5 decades across models. The models simulate spatially divergent evolution of O 2 trends over the past 5 decades. The trend (multi-model mean and spread) for upper ocean global O 2 inventory for each of the MIP simulations over the past 5 decades is 0.03 ± 0.39×1014 [mol/decade] for OMIP1, −0.37 ± 0.15×10 14 [mol/decade] for OMIP2, and −1.06 ± 0.68×10 14 [mol/decade] for CMIP6 Historical, respectively. The trend in the upper ocean global O 2 inventory for the latest observations based on the World Ocean Database 2018 is −0.98×10 14 [mol/decade], in line with the CMIP6 Historical multi-model mean, though this recent observations-based trend estimate is weaker than previously reported trends. A comparison across ocean-only simulations from OMIP1 and OMIP2 suggests that differences in atmospheric forcing such as surface wind explain the simulated divergence across configurations in O 2 inventory changes. Additionally, a comparison of coupled model simulations from the CMIP6 Historical configuration indicates that differences in background mean states due to differences in spin-up duration and equilibrium states result in substantial differences in the climate change response of O 2 . Finally, we discuss gaps and uncertainties in both ocean biogeochemical simulations and observations and explore possible future ... |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.3389/fmars.2023.1139917 |
| Availability: |
https://meteofrance.hal.science/meteo-04443485; https://meteofrance.hal.science/meteo-04443485v1/document; https://meteofrance.hal.science/meteo-04443485v1/file/fmars-10-1139917.pdf; https://doi.org/10.3389/fmars.2023.1139917 |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.832CCC2F |
| Database: |
BASE |