Abstract
The increased concentration of greenhouse gases in the atmosphere from human activities traps heat within the climate system and increases ocean heat content (OHC). Here, we provide the first analysis of recent OHC changes through 2021 from two international groups. The world ocean, in 2021, was the hottest ever recorded by humans, and the 2021 annual OHC value is even higher than last year’s record value by 14 ± 11 ZJ (1 zetta J = 1021 J) using the IAP/CAS dataset and by 16 ± 10 ZJ using NCEI/NOAA dataset. The long-term ocean warming is larger in the Atlantic and Southern Oceans than in other regions and is mainly attributed, via climate model simulations, to an increase in anthropogenic greenhouse gas concentrations. The year-to-year variation of OHC is primarily tied to the El Niño-Southern Oscillation (ENSO). In the seven maritime domains of the Indian, Tropical Atlantic, North Atlantic, Northwest Pacific, North Pacific, Southern oceans, and the Mediterranean Sea, robust warming is observed but with distinct inter-annual to decadal variability. Four out of seven domains showed record-high heat content in 2021. The anomalous global and regional ocean warming established in this study should be incorporated into climate risk assessments, adaptation, and mitigation.
摘要
人类活动导致大气中温室气体的浓度上升,造成了地球系统的净热量吸收和海洋热含量增加。本文发布了两个国际机构的2021年海洋热含量数据,数据表明:2021年海洋升温持续——成为有现代海洋观测记录以来海洋最暖的一年。相对于2020年,2021年全球海洋上层2000米热含量上升了14 ± 11 ZJ (1 zetta J = 1021 J)(IAP/CAS数据)、以及16 ± 10 ZJ(NOAA/NCEI数据)。海洋长期变暖趋势在南大洋、中低纬度大西洋区域更强,地球系统模式的单个因子强迫实验证明,温室气体增加是主要的驱动因子;而年际尺度的海洋热含量变化主要受到厄尔尼诺-南方涛动模态调控。此外,本文给出了全球7个主要海域的海洋变暖测算,发现地中海、北大西洋、南大洋、北太平洋海区温度均创历史新高。最后,本文提出需要充分将全球和区域海洋变暖的影响纳入气候风险评估、气候变化影响和应对当中。
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References
Abraham, J., J. R. Stark, and W. J. Minkowycz, 2015: Briefing: Extreme weather: Observed Precipitation Changes in the USA. Proceedings of the Institution of Civil Engineers-Forensic Engineering, 168, 68–70, https://doi.org/10.1680/feng.14.00015.
Abraham, J., L. J. Cheng, and M. E. Mann, 2017: Briefing: Future climate projections allow engineering planning. Forensic Engineering, Proceedings of the Institution of Civil Engineers, 170, 54–57. https://doi.org/10.1680/jfoen.17.00002.
Abram, N., and Coauthors, 2019: Framing and context of the report. IPCC Special Report on the Ocean and Cryosphere in a Changing Climate, H.-O. Pörtner et al., Eds., Intergovernmental Panel on Climate Chang, in press.
Argo, 2020: Argo Float Data and Metadata from Global Data Assembly Centre (Argo GDAC). SEANOE. Available from https://doi.org/10.17882/42182.
Armour, K. C., J. Marshall, J. R. Scott, A. Donohoe, and E. R. Newsom, 2016: Southern Ocean warming delayed by circumpolar upwelling and equatorward transport. Nature Geoscience, 9(7), 549–554, https://doi.org/10.1038/Ngeo2731.
Ben Ismail S., K. Schroeder, J. Chiggiato, S. Sparnocchia, and M. Borghini, 2021: Long term changes monitored in two Mediterranean Channels. Copernicus Marine Service Ocean State Report, Issue 5, K. von Schuckmann et al., Eds., 48–52, https://doi.org/10.1080/1755876X.2021.1946240.
Boers, N., 2021: Observation-based early-warning signals for a collapse of the Atlantic Meridional Overturning Circulation. Nature Climate Change, 11, 680–688, https://doi.org/10.1038/s41558-021-01097-4.
Böning, C. W., A. Dispert, M. Visbeck, S. R. Rintoul, and F. U. Schwarzkopf, 2008: The response of the Antarctic Circumpolar Current to recent climate change. Nature Geoscience, 1(12), 864–869, https://doi.org/10.1038/ngeo362.
Boyer, T. P., and Coauthors, 2018: World Ocean Database 2018. A. V. Mishonov, Technical Editor, NOAA Atlas NESDIS 87.
Cheng, L., Zhu, J., Cowley, R., Boyer, T., & Wijffels, S., 2014: Time, Probe Type, and Temperature Variable Bias Corrections to Historical Expendable Bathythermograph Observations. Journal of Atmospheric and Oceanic Technology, 31(8), 1793–1825, https://doi.org/10.1175/JTECH-D-13-00197.1.
Cheng, L. J., J. Abraham, Z. Hausfather, and K. E. Trenberth, 2019a: How fast are the oceans warming.. Science, 363, 128–129, https://doi.org/10.1126/science.aav7619.
Cheng, L. J., K. E. Trenberth, J. Fasullo, T. Boyer, J. Abraham, and J. Zhu, 2017: Improved estimates of ocean heat content from 1960 to 2015. Science Advances, 3, e1601545, https://doi.org/10.1126/sciadv.1601545.
Cheng, L. J., K. E. Trenberth, J. T. Fasullo, M. Mayer, M. Balmaseda, and J. Zhu, 2019b: Evolution of ocean heat content related to ENSO. J. Climate, 32(12), 3529–3556, https://doi.org/10.1175/JCLI-D-18-0607.1.
Cheng, L. J., K. Trenberth, J. Fasullo, J. Abraham, T. Boyer, K. von Schuckmann, and J. Zhu, 2018: Taking the pulse of the planet. Eos, 99, 14–16, https://doi.org/10.1029/2017EO081839.
Cornwall, W., 2019: A new ‘Blob’ menaces Pacific ecosystems. Science, 365, 1233, https://doi.org/10.1126/science.365.6459.1233.
Deser, C., and Coauthors, 2020: Isolating the evolving contributions of anthropogenic aerosols and greenhouse gases: A new CESM1 large ensemble community resource. J. Climate, 33(18), 7835–7858, https://doi.org/10.1175/JCLI-D-20-0123.1.
Duan, J., and Coauthors, 2021: Rapid sea level rise in the Southern Hemisphere subtropical oceans. J. Climate, 34(23), 9401–9423, https://doi.org/10.1175/JCLI-D-21-0248.1.
Emanuel, K., 2021a: Response of global tropical cyclone activity to increasing CO2: Results from downscaling CMIP6 models. J. Climate, 34(1), 57–70, https://doi.org/10.1175/JCLID-20-0367.1.
Emanuel, K., 2021b: Atlantic tropical cyclones downscaled from climate reanalyses show increasing activity over past 150 years.. Nat Commun., 12, 7027, https://doi.org/10.1038/s41467-021-27364-8.
Fasullo, J. T., 2020: Evaluating simulated climate patterns from the CMIP archives using satellite and reanalysis datasets using the Climate Model Assessment Tool (CMATv1). Geoscientific Model Development, 13, 3627–3642, https://doi.org/10.5194/gmd-13-3627-2020.
Fasullo, J. T., and R. S. Nerem, 2018: Altimeter-era emergence of the patterns of forced sea-level rise in climate models and implications for the future. Proceedings of the National Academy of Sciences of the United States of America, 115, 12 944–12 949, https://doi.org/10.1073/pnas.1813233115.
Fasullo, J. T., N. Rosenbloom, R. R. Buchholz, G. Danabasoglu, D. M. Lawrence, and J.-F. Lamarque, 2021: Coupled climate responses to recent Australian wildfire and COVID-19 emissions anomalies estimated in CESM2. Geophys Res. Lett., 48, e2021GL093841, https://doi.org/10.1029/2021GL093841.
Frölicher, T. L., J. L. Sarmiento, D. J. Paynter, J. P. Dunne, J. P. Krasting, and M. Winton, 2015: Dominance of the Southern Ocean in anthropogenic carbon and heat uptake in CMIP5 models. J. Climate, 28(2), 862–886, https://doi.org/10.1175/JCLI-D-14-00117.1.
Fyfe, J. C., V. V. Kharin, N. Swart, G. M. Flato, M. Sigmond, and N. P. Gillett, 2021: Quantifying the influence of short-term emission reductions on climate. Science Advances, 7(10), eabf7133, https://doi.org/10.1126/sciadv.abf7133.
Gao, L. B., S. R. Rintoul, and W. D. Yu, 2018: Recent wind-driven change in Subantarctic Mode Water and its impact on ocean heat storage. Nature Climate Change, 8(1), 58–63, https://doi.org/10.1038/s41558-017-0022-8.
Gille, S. T., 2002: Warming of the Southern Ocean since the 1950s. Science, 295(5558), 1275–1277, https://doi.org/10.1126/science.1065863.
Gouretski, V., J. H. Jungclaus, and H. Haak, 2013: Revisiting the Meteor 1925–1927 hydrographic dataset reveals centennial full-depth changes in the Atlantic Ocean. Geophys. Res. Lett., 40, 2236–2241, https://doi.org/10.1002/grl.50503.
Johnson, G., and Coauthors, 2018: Ocean heat content [in State of the Climate in 2017]. Bull. Amer. Meteor. Soc., 99, S72–S77.
Hansen, J., M. Sato, P. Kharecha, and K. Von Schuckmann, 2011: Earth’s energy imbalance and implications. Atmospheric Chemistry and Physics, 11, 13 421–13 449, https://doi.org/10.5194/acp-11-13421-2011.
Holbrook, N. J., and Coauthors, 2019: A global assessment of marine heatwaves and their drivers. Nature Communications, 10, 2624, https://doi.org/10.1038/s41467-019-10206-z.
Hu, S. N., and A. V. Fedorov, 2020: Indian Ocean warming as a driver of the North Atlantic warming hole. Nature Communications, 11, 4785, https://doi.org/10.1038/s41467-020-18522-5.
IPCC, 2013: Climate Change 2013: The physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, 1535 pp.
IPCC, 2019: Summary for policymakers. IPCC Special Report on the Ocean and Cryosphere in a Changing Climate, H.-O. Pörtner et al., Eds. In press
IPCC, 2021: Summary for policymakers. Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, V. Masson-Delmotte et al., Eds., IPCC.
Kay, J. E., and Coauthors, 2015: The Community Earth System Model (CESM) large ensemble project: A community resource for studying climate change in the presence of internal climate variability. Bull. Amer. Meteor. Soc., 96(8), 1333–1349, https://doi.org/10.1175/BAMS-D-13-00255.1.
Keil, P., T. Mauritsen, J. Jungclaus, C. Hedemann, D. Olonscheck, and R. Ghosh, 2020: Multiple drivers of the North Atlantic warming hole. Nature Climate Change, 10, 667–671, https://doi.org/10.1038/s41558-020-0819-8.
Lee, S.-K., W. Park, M. O. Baringer, A. L. Gordon, B. Huber, and Y. Y. Liu, 2015: Pacific origin of the abrupt increase in Indian Ocean heat content during the warming hiatus. Nature Geoscience, 8(6), 445–449, https://doi.org/10.1038/ngeo2438.
Levitus, S., J. I. Antonov, T. P. Boyer, and C. Stephens, 2000: Warming of the world ocean. Science, 287(5461), 2225–2229, https://doi.org/10.1126/science.287.5461.2225.
Levitus, S., J. I. Antonov, T. P. Boyer, R. A. Locarnini, H. E. Garcia, and A. V. Mishonov, 2009: Global ocean heat content 1955–2008 in light of recently revealed instrumentation problems. Geophys. Res. Lett., 36, L07608, https://doi.org/10.1029/2008GL037155.
Levitus, S., and Coauthors, 2012: World ocean heat content and thermosteric sea level change (0–2000 m), 1955–2010. Geophys Res. Lett., 39, L10603, https://doi.org/10.1029/2012GL051106.
Li, G. C., L. J. Cheng, J. Zhu, K. E. Trenberth, M. E. Mann, and J. P. Abraham, 2020a: Increasing ocean stratification over the past half-century. Nature Climate Change, 10, 1116–1123, https://doi.org/10.1038/s41558-020-00918-2.
Li, L. F., M. S. Lozier, and F. L. Li, 2021: Century-long cooling trend in subpolar North Atlantic forced by atmosphere: An alternative explanation. Climate Dyn., in press, https://doi.org/10.1007/s00382-021-06003-4.
Li, Y. L., W. Q. Han, A. X. Hu, G. A. Meehl, and F. Wang, 2018: Multi-decadal changes of the Upper Indian Ocean heat content during 1965–2016.. J Climate, 31(19), 7863–7884, https://doi.org/10.1175/JCLI-D-18-0116.1.
Li, Y. L., W. Q. Han, F. Wang, L. Zhang, and J. Duan, 2020b: Vertical structure of the Upper-Indian Ocean thermal variability. J. Climate, 33(17), 7233–7253, https://doi.org/10.1175/JCLI-D-19-0851.1.
Marshall, J., and K. Speer, 2012: Closure of the meridional overturning circulation through Southern Ocean upwelling. Nature Geoscience, 5(3), 171–180, https://doi.org/10.1038/Ngeo1391.
Piecuch, C. G., 2020: Likely weakening of the Florida Current during the past century revealed by sea-level observations. Nature Communications, 11, 3973, https://doi.org/10.1038/s41467-020-17761-w.
Pinardi, N., and Coauthors, 2015: Mediterranean Sea large-scale low-frequency ocean variability and water mass formation rates from 1987 to 2007: A retrospective analysis. Progress in Oceanography, 132, 318–332, https://doi.org/10.1016/j.pocean.2013.11.003.
Purich, A., M. H. England, W. J. Cai, A. Sullivan, and P. J. Durack, 2018: Impacts of broad-scale surface freshening of the Southern Ocean in a coupled climate model. J. Climate, 31(7), 2613–2632, https://doi.org/10.1175/JCLI-D-17-0092.1.
Purkey, S. G., and G. C. Johnson, 2010: Warming of global abyssal and deep southern ocean waters between the 1990s and 2000s: Contributions to global heat and sea level rise budgets. J. Climate, 23, 6336–6351, https://doi.org/10.1175/2010JCLI3682.1.
Purkey, S. G., and G. C. Johnson, 2013: Antarctic Bottom Water warming and freshening: Contributions to sea level rise, ocean freshwater budgets, and global heat gain. J. Climate, 26(16), 6105–6122, https://doi.org/10.1175/JCLI-D-12-00834.1.
Rahmstorf, S., J. E, Box, G. Feulner, M. E. Mann, A. Robinson, S. Rutherford, and E. Schaffernicht, 2015: Exceptional twentieth-century slowdown in Atlantic Ocean overturning circulation. Nature Climate Change, 5, 475–480, https://doi.org/10.1038/nclimate2554.
Rhein, M., and Coauthors, 2013: Observations: Ocean. Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, T. F. Stocker et al., Eds., Cambridge University Press.
Roemmich, D., J. Church, J. Gilson, D. Monselesan, P. Sutton, and S. Wijffels, 2015: Unabated planetary warming and its ocean structure since 2006. Nature Climate Change, 5(3), 240–245. https://doi.org/10.1038/nclimate2513.
Scambos T, J. Abraham, 2015: Briefing: Antarctic ice sheet mass loss and future sea-level rise. Proceedings of the Institution of Civil Engineers — Forensic Engineering, 168, 81–84, https://doi.org/10.1680/feng.14.00014.
Scannell, H. A., G. C. Johnson, L. Thompson, J. M. Lyman, and S. C. Riser, 2020: Subsurface evolution and persistence of marine heatwaves in the Northeast Pacific. Geophys. Res. Lett., 47, e2020GL090548, https://doi.org/10.1029/2020GL090548.
Schmidtko, S., and G. C. Johnson, 2012: Multi-decadal warming and shoaling of Antarctic intermediate water. J. Climate, 25(1), 207–221, https://doi.org/10.1175/Jcli-D-11-00021.1.
Schmidtko, S., K. J. Heywood, A. F. Thompson, and S. Aoki, 2014: Multi-decadal warming of Antarctic waters. Science, 346(6214), 1227–1231, https://doi.org/10.1126/science.1256117.
Schroeder, K., J. Chiggiato, S. A. Josey, M. Borghini, S. Aracri, and S. Sparnocchia, 2017: Rapid response to climate change in a marginal sea. Scientific Reports, 7, 4065, https://doi.org/10.1038/s41598-017-04455-5.
Seidov, D., A. Mishonov, and R. Parsons, 2021: Recent warming and decadal variability of Gulf of Maine and Slope Water. Limnology and Oceanography, 66, 3472–3488, https://doi.org/10.1002/lno.11892.
Seidov, D., A. Mishonov, J. Reagan, and R. Parsons, 2017: Multi-decadal variability and climate shift in the North Atlantic Ocean. Geophys. Res. Lett., 44, 4985–4993, https://doi.org/10.1002/2017GL073644.
Seidov, D., A. Mishonov, J. Reagan, and R. Parsons, 2019: Resilience of the Gulf Stream path on decadal and longer timescales. Scientific Reports, 9, 11549, https://doi.org/10.1038/s41598-019-48011-9.
Silvy, Y., E. Guilyardi, J. B. Sallée, and P. J. Durack, 2020: Human-induced changes to the global ocean water masses and their time of emergence. Nature Climate Change, 10(11), 1030–1036, https://doi.org/10.1038/s41558-020-0878-x.
Simoncelli, S., C. Fratianni, and G. Mattia, 2019: Monitoring and long-term assessment of the Mediterranean Sea physical state through ocean reanalyses. INGV Workshop on Marine Environment, L. Sagnotti et al., Eds., Rome, IVGV, 62–64, https://doi.org/10.13127/misc/51.
Simoncelli, S., N. Pinardi, C. Fratianni, C. Dubois, and G. Notarstefano, 2018: Water mass formation processes in the Mediterranean Sea over the past 30 years. Copernicus Marine Service Ocean State Report, Issue 2. K. von Schuckmann et al., Eds., s96–s100, https://doi.org/10.1080/1755876X.2018.1489208.
Smith, C. J., and P. M. Forster, 2021: Suppressed late-20th Century warming in CMIP6 models explained by forcing and feedbacks. Geophys. Res. Lett., 48, e2021GL094948, https://doi.org/10.1029/2021GL094948.
Sriver, R. L., and M. Huber, 2007: Observational evidence for an ocean heat pump induced by tropical cyclones. Nature, 447, 577–580, https://doi.org/10.1038/nature05785.
Storto, A., and Coauthors, 2019: The added value of the multi-system spread information for ocean heat content and steric sea level investigations in the CMEMS GREP ensemble reanalysis product. Climate Dyn., 53, 287–312, https://doi.org/10.1007/s00382-018-4585-5.
Swart, N. C., S. T. Gille, J. C. Fyfe, and N. P. Gillett, 2018: Recent Southern Ocean warming and freshening driven by greenhouse gas emissions and ozone depletion. Nature Geoscience, 11(11), 836–841, https://doi.org/10.1038/s41561-018-0226-1.
Trenberth, K. E., J. T. Fasullo, and M. A. Balmaseda, 2014: Earth’s energy imbalance. J. Climate, 27, 3129–3144, https://doi.org/10.1175/JCLI-D-13-00294.1.
Trenberth, K. E., A. G. Dai, R. M. Rasmussen, and D. B. Parsons, 2003: The changing character of precipitation. Bull. Amer. Meteor. Soc., 84(9), 1205–1218, https://doi.org/10.1175/BAMS-84-9-1205.
Trenberth, K. E., J. T. Fasullo, K. von Schuckmann, and L. J. Cheng, 2016: Insights into Earth’s energy imbalance from multiple sources. J. Climate, 29, 7495–7505, https://doi.org/10.1175/JCLI-D-16-0339.1.
Trenberth, K. E., L. J. Cheng, P. Jacobs, Y. X. Zhang, and J. Fasullo, 2018: Hurricane Harvey links to ocean heat content and climate change adaptation. Earth’s Future, 6, 730–744, https://doi.org/10.1029/2018EF000825.
Trenberth, K. E., G. W. Branstator, D. Karoly, A. Kumar, N.-C. Lau, and C. Ropelewski, 1998: Progress during TOGA in understanding and modeling global teleconnections associated with tropical sea surface temperatures. J. Geophys. Res.: Oceans, 103, 14 291–14 324, https://doi.org/10.1029/97JC01444.
Ummenhofer, C. C., S. Ryan, M. H. England, M. Scheinert, P. Wagner, A. Biastoch, and C. W. Böning, 2020: Late 20th century Indian Ocean heat content gain masked by wind forcing. Geophys. Res. Lett., 47(22), e2020GL088692, https://doi.org/10.1029/2020GL088692.
Ummenhofer, C. C., S. A. Murty, J. Sprintall, T. Lee, and N. J. Abram, 2021: Heat and freshwater changes in the Indian Ocean region. Nature Reviews Earth & Environment, 2(8), 525–541, https://doi.org/10.1038/s43017-021-00192-6.
United Nations, 2021: Sustainable Development Goals. Available from https://sdgs.un.org/goals.
Volkov, D. L., S.-K. Lee, A. L. Gordon, and M. Rudko, 2020: Unprecedented reduction and quick recovery of the South Indian Ocean heat content and sea level in 2014–2018. Science Advances, 6(36), eabc1151, https://doi.org/10.1126/sciadv.abc1151.
von Schuckmann, K., E. Holland, P. Haugan, and P. Thomson, 2020a: Ocean science, data, and services for the UN 2030 Sustainable Development Goals. Marine Policy, 121, 104154, https://doi.org/10.1016/j.marpol.2020.104154.
von Schuckmann, K., and Coauthors, 2016a: An imperative to monitor Earth’s energy imbalance. Nature Climate Change, 6, 138–144, https://doi.org/10.1038/nclimate2876.
von Schuckmann, K., and Coauthors, 2016b: The Copernicus marine environment monitoring service ocean state report. Journal of Operational Oceanography, 9, s235–s320, https://doi.org/10.1080/1755876X.2016.1273446.
von Schuckmann, K., and Coauthors, 2020b: Heat stored in the Earth system: Where does the energy go.. Earth System Science Data, 12, 2013–2041, https://doi.org/10.5194/essd-12-2013-2020.
Wang, C. Z., 2019: Three-ocean interactions and climate variability: A review and perspective. Climate Dyn., 53, 5119–5136, https://doi.org/10.1007/s00382-019-04930-x.
Wang, X. D., C. Z. Wang, G. J. Han, W. Li, and X. R. Wu, 2014: Effects of tropical cyclones on large-scale circulation and ocean heat transport in the South China Sea. Climate Dyn., 43, 3351–3366, https://doi.org/10.1007/s00382-014-2109-5.
Wijffels, S., D. Roemmich, D. Monselesan, J. Church, and J. Gilson, 2016: Ocean temperatures chronicle the ongoing warming of Earth. Nature Climate Change, 6, 116–118, https://doi.org/10.1038/nclimate2924.
Xiao, F. A., D. X. Wang, and L. Yang, 2020: Can tropical Pacific winds enhance the footprint of the Interdecadal Pacific Oscillation on the upper-ocean heat content in the South China Sea. J. Climate, 33(10), 4419–4437, https://doi.org/10.1175/JCLI-D-19-0679.1.
Xie, S.-P., H. Annamalai, F. A. Schott, and J. P. McCreary Jr., 2002: Structure and mechanisms of south Indian Ocean climate variability. J. Climate, 15(8), 864–878, https://doi.org/10.1175/1520-0442(2002)015<0864:SAMOSI2.0.CO;2.
Yang, L., S. Chen, C. Z. Wang, D. X. Wang, and X. Wang, 2018: Potential impact of the Pacific Decadal Oscillation and sea surface temperature in the tropical Indian Ocean-Western Pacific on the variability of typhoon landfall on the China coast. Climate Dyn., 51, 2695–2705, https://doi.org/10.1007/s00382-017-4037-7.
Yang, L. N., R. Murtugudde, L. Zhou, and P. Liang, 2020: A potential link between the Southern Ocean warming and the South Indian Ocean heat balance. J. Geophys. Res.: Oceans, 125(12), e2020JC016132, https://doi.org/10.1029/2020JC016132.
Acknowledgements
The IAP/CAS analysis is supported by the National Natural Science Foundation of China (Grant No. 42122046, 42076202), Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB42040402), National Natural Science Foundation of China (Grant No. 42076202), National Key R&D Program of China (Grant No. 2017YFA0603202), and Key Deployment Project of Centre for Ocean Mega-Research of Science, CAS (Grant Nos. COMS2019Q01 and COMS2019Q07). NCAR is sponsored by the US National Science Foundation. The efforts of Dr. Fasullo in this work were supported by NASA Award 80NSSC17K0565, and by the Regional and Global Model Analysis (RGMA) component of the Earth and Environmental System Modeling Program of the U.S. Department of Energy’s Office of Biological & Environmental Research (BER) via National Science Foundation IA 1844590. The efforts of Dr. Mishonov and Mr. Reagan were partially supported by NOAA (Grant NA14NES4320003 to CISESSMD at the University of Maryland). The IAP/CAS data are available at http://www.ocean.iap.ac.cn/ and https://msdc.qdio.ac.cn/. The NCEI/NOAA data are available at https://www.ncei.noaa.gov/products/climate-data-records/global-ocean-heat-content. The historical XBT data along the MX04 line (Genova-Palermo) are available through SeaDataNet - Pan-European infrastructure (http://www.seadatanet.org) for ocean and marine data management. Since 2021, XBT data have been collected in the framework of the MACMAP project funded by the Istituto Nazionale di Geofisica e Vulcanologia in agreement between INGV, ENEA, and GNV SpA shipping company that provides hospitality on their commercial vessels.
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Article Highlights
• The world ocean, in 2021, was the hottest ever recorded by humans.
• The warming pattern is mainly attributed to increased anthropogenic greenhouse gas concentrations, offset by the impact of aerosols.
• Ocean warming has far-reaching consequences and should be incorporated into climate risk assessments, adaptation, and mitigation.
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Cheng, L., Abraham, J., Trenberth, K.E. et al. Another Record: Ocean Warming Continues through 2021 despite La Niña Conditions. Adv. Atmos. Sci. 39, 373–385 (2022). https://doi.org/10.1007/s00376-022-1461-3
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DOI: https://doi.org/10.1007/s00376-022-1461-3