Abstract
The build-up of decadal timescale upper ocean heat content in the off-equatorial western tropical Pacific can provide necessary conditions for interannual El Niño/Southern Oscillation (ENSO) events to contribute to decadal timescale transitions of tropical Pacific SSTs to the opposite phase of the Interdecadal Pacific Oscillation (IPO). This can be viewed as a corollary to subseasonal westerly wind burst events contributing to El Niño interannual timescale transitions. A long pre-industrial control run with CESM1 is analyzed to show that there is a greater chance of ENSO activity to contribute to an IPO transition when off-equatorial western Pacific Ocean heat content reaches either a maximum (for El Niño to contribute to a transition to positive IPO) or minimum (for La Niña to contribute to a transition to negative IPO) as seen in observations. If above a necessary ocean heat content threshold, the convergence associated with westerly anomaly near-equatorial surface winds associated with El Niño activity can draw that heat content equatorward to sustain anomalously warm western and central Pacific SSTs. These are associated with positive precipitation and convective heating anomalies, a Gill-type response and wind stress curl anomalies that continue to feed warm water into the near-equatorial western Pacific. These conditions then sustain the decadal-timescale transition to positive IPO (with the opposite sign for transition to negative IPO). Associated central equatorial Pacific convective heating anomalies produce SLP and wind stress anomalies in the North and South Pacific that can excite westward-propagating off-equatorial oceanic Rossby waves to contribute to the western Pacific thermocline depth and consequent heat content anomalies.
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Data availability
The HadISST data are available from: https://www.metoffice.gov.uk/hadobs/hadisst/. The CESM solutions / datasets used in this study are freely available from the NCAR Digital Asset Services Hub (DASH) at data.ucar.edu or from the links provided from the CESM web site at www.cesm.ucar.edu.
Code availability
Previous and current CESM versions are freely available at www.cesm.ucar.edu:/models/cesm2/.
References
Amaya DJ (2019) The pacific meridional mode and ENSO: a review. Current Climate Change Reports. https://doi.org/10.1007/s40641-019-00142-x
Angell JK (1981) Comparison of variations in atmospheric quantities with sea surface temperature variations in the equatorial eastern Pacific. Mon Weather Rev 109:230–243
Bordbar MH et al. (2019) Uncertainty in near-term global surface warming linked to tropical Pacific climate variability. Nat Comms 10:1990 doi: https://doi.org/10.1038/s41467-019-09761-2
Capotondi A, Alexander MA (2001) Rossby waves in the tropical North Pacific and their role in decadal thermocline variability. J Phys Oceanogr 31:3496–3515
Capotondi A, Sardeshmukh PD (2015) Optimal precursors of different types of ENSO events. Geophys Res Lett 42:9952–9960. https://doi.org/10.1002/2015GL066171
Capotondi A, Alexander MA, Deser C (2003) Why are there Rossby wave maxima in the Pacific at 10°S and 13°N? J Phys Oceanogr 33:1549–1563
Capotondi A et al (2015) Understanding ENSO diversity. Bull Amer Meteorol Soc 96:921–938
Capotondi A, Sardeshmukh PD, Ricciardulli L (2018) The nature of the stochastic wind forcing of ENSO. J Climate 31:8081–8099
Capotondi A, Deser C, Phillips AS, Okumura Y, Larson SM (2020) ENSO and Pacific decadal variability in the Community Earth System Model version 2. J Adv Modelling Earth Syst. https://doi.org/10.1029/2019MS002022
Chiang JCH, Vimont DJ (2004) Analogous Pacific and Atlantic Meridional Modes of tropical atmosphere-ocean variability. J Clim 17:4143–4158
Di Lorenzo E, Liguori G, Schneider N, Furtado JC, Anderson BT, Alexander MA (2015) ENSO and meridional modes: a null hypothesis for Pacific climate variability. Geophys Res Lett 42:9440–9448
England MH et al (2014) Slowdown of surface greenhouse warming due to recent Pacific trade wind acceleration. Nat Clim Chang 4:222–227. https://doi.org/10.1038/NCLIMATE2106
Farneti R, Molteni F, Kucharski F (2014) Pacific interdecadal variability driven by tropical-extratropical interactions. Clim Dyn 42:3337–3355
Fasullo JT, Phillips AS, Deser C (2020) Evaluation of leading modes of climate variability in the CMIP archives. J Climate. https://doi.org/10.1175/JCLI-D-19-1024.1
Gill A (1980) Some simple solutions for heat-induced tropical circulation. Quart J R Meteor Soc 106:447–462. https://doi.org/10.1002/qj.49710644905
Han W et al (2014) Intensification of decadal and multi-decadal sea level variability in the western tropical Pacific during recent decades. Clim Dyn 43:1357–1379
Jin F-F (2001) Low frequency modes of the tropical ocean dynamics. J Clim 14:3872–3881
Kay JE et al (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 Am Meteorol Soc 96:1333–1349. https://doi.org/10.1175/BAMS-D-13-00255.1
Kosaka Y, Xie S-P (2013) Recent global-warming hiatus tied to equatorial Pacific surface cooling. Nature 501:403–407. https://doi.org/10.1038/nature12534
Kug J-S, Jin F-F, An S-I (2009) Two types of El Niño events: cold tongue El Niño and warm pool El Niño. J Clim 22:1499–1515. https://doi.org/10.1175/2008JCLI2624.1
Lawrence D, Webster P (2002) The boreal summer intraseasonal oscillation: relationship between northward and eastward movement of convection. J Atmos Sci 59:1593–1606
Lengaigne M, Guilyardi E, Boulanger JP, Menkes C, Delecluse P, Inness P, Cole J, Slingo J (2004) Triggering of El Niño by westerly wind events in a coupled general circulation model. Clim Dyn 23:601–620
Lian T, Chen D, Tang Y, Wu Q (2014) Effects of westerly wind bursts on El Niño: a new perspective. Geophys Res Lett 41:3522–3527. https://doi.org/10.1002/2014GL059989
Liu Z, Di Lorenzo E (2018) Mechanisms and predictability of Pacific decadal variability. Curr Clim Change Rep 4(2):128–144
McPhaden MJ et al (2006) Large scale dynamics and MJO forcing of ENSO variability. Geophys Res Lett 33:L16702. https://doi.org/10.1029/2006GL026786
Meehl GA (1987) The annual cycle and interannual variability in the tropical Pacific and Indian Ocean regions. Mon Weather Rev 115:27–50
Meehl GA, Hu A (2006) Megadroughts in the Indian monsoon region and southwest North America and a mechanism for associated multi-decadal Pacific sea surface temperature anomalies. J Climate 19:1605–1623
Meehl GA, Lukas R, Kiladis GN, Wheeler M, Matthews A, Weickmann KM (2001) A conceptual framework for time and space scale interactions in the climate system. Clim Dyn 17:753–775
Meehl GA, Hu A, Santer BD (2009) The mid-1970s climate shift in the Pacific and the relative roles of forced versus inherent decadal variability. J Climate 22:780–792
Meehl GA, Hu A, Santer BD, Xie S-P (2016a) Contribution of the Interdecadal Pacific Oscillation to twentieth-century global surface temperature trends. Nat Clim Change 6, DOI:https://doi.org/10.1038/nclimate3107
Meehl GA, Hu A, Teng H, (2016b) Initialized decadal prediction for transition to positive phase of the Interdecadal Pacific Oscillation. Nat Commun 7, doi:https://doi.org/10.1038/NCOMMS11718
Meehl GA, Arblaster JM, Bitz C, Chung CTY, Teng H (2016c) Antarctic sea ice expansion between 2000–2014 driven by tropical Pacific decadal climate variability. Nat Geosci. https://doi.org/10.1038/NGEO2751
Meehl GA, Hu A, Castruccio F, England MH, Bates SC, Donabasoglu G, McGregor S, Arblaster JM, Xie S-P, Rosenbloom N (2020) Atlantic and Pacific tropics connected by mutually interactive decadal-timescale processes. Nature Geo. https://doi.org/10.1038/s41561-020-00669-x
Newell RE, Weare BC (1976) Factors governing tropospheric mean temperature. Science 194:1413–1414
Newman M et al (2016) The Pacific decadal oscillation, revisited. J Clim 29:4399–4427. https://doi.org/10.1175/JCLI-D-15-0508.1
Ogata T, Xie S-P, Wittenberg A, Sun D-Z (2013) Interdecadal amplitude modulation of El Niño-Southern Oscillation and its impact on tropical Pacific decadal variability. J Climate 26(18):7280–7297. https://doi.org/10.1175/JCLI-D-12-00415.1
Puy M, Vialard J, Lengaigne M, Guilyardi E (2016) Modulation of equatorial Pacific westerly/easterly wind events by the Madden-Julian Oscillation and convectively coupled Rossby waves. Clim Dyn 46:2155–2178
Rayner NA, Parker DE, Horton EB, Folland CK, Alexander LV, Rowell DP, Kent EC, Kaplan A (2003) Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century. J Geophys Res 108(D14):4407. https://doi.org/10.1029/2002JD002670
Rodgers KB, Friederichs P, Latif M (2004) Tropical Pacific decadal variability and its relation to decadal modulations of ENSO. J Climate 17:3761–3774. https://doi.org/10.1175/1520-0442(2004)017%3c3761:TPDVAI%3e2.0.CO;2
Sun C, Kucharski F, Li J, Jin F-F, Kang I-S, Ding R (2017) Western tropical Pacific multidecadal variability forced by the Atlantic multidecadal oscillation. Nat Comms 8:15998. https://doi.org/10.1038/ncomms15998
Trenberth KE, Caron JM, Stepaniak DP, Worley S (2002) Evolution of El Niño-southern oscillation and global atmospheric surface temperatures. J Geophys Res 107:4065
Vimont DJ (2005) The contribution of the interannual ENSO cycle to the spatial pattern of ENSO-like decadal variability. J Climate 18:2080–2092
Vimont D, Alexander MA, Newman M (2014) Optimal growth of central and east Pacific ENSO events. Geophys Res Lett 41:4027–4034
Wang X, Jin F-F, Wang Y (2003) A tropical ocean recharge-mechanism for climate variability. Part II: a unified theory for decadal and ENSO modes. J Climate 16:3599–3616
Yeager SG, Danabasoglu G, Rosenbloom N, Strand W, Bates SC, Meehl GA, Karspeck A, Lindsay K, Long MC, Teng H, Lovenduski N (2018) Predicting near-term changes in the earth system: a large ensemble of initialized decadal prediction simulations using the Community Earth System Model. Bull Amer Meteorol Soc 99:1867–1886. https://doi.org/10.1175/BAMS-D-17-0098.1
Yeh S-W, Kug J-S, Dewitte B, Kwon M-H, Kirtman BP, Jin F-F (2009) El Niño in a changing climate. Nature 461:511–514. https://doi.org/10.1038/nature08316
Yin J, Overpeck J, Peyser C, Stouffer R (2018) Big jump of record warm global mean surface temperature in 2014–2016 related to unusually large oceanic heat releases. Geophys Res Lett 45:1069–1078. https://doi.org/10.1002/2017GL076500
Yu J-Y, Zou Y, Kim ST, Lee T (2012) The changing impact of El Niño on US winter temperatures. Geophys Res Lett 39:L15702. https://doi.org/10.1029/2012GL052483
Zhang H, Clement A, Di Nezio P (2014) The South Pacific meridional mode: a mechanism for ENSO-like variability. J Climate 27:769–783. https://doi.org/10.1175/JCLI-D-13-00082.1
Acknowledgements
The authors acknowledge insightful discussions with Dr. Fei-Fei Jin. Portions of this study were supported by the Regional and Global Model Analysis (RGMA) component of Earth and Environmental Systems Modeling in the Earth and Environmental Systems Sciences Division of the U.S. Department of Energy's Office of Biological & Environmental Research (BER) via National Science Foundation IA 1947282, and also by RGMA support of the HiLAT project at Pacific Northwest National Laboratory which is operated by Battelle for the U.S. Department of Energy under contract DE-AC05-76RLO1830. This work also was supported by the National Center for Atmospheric Research, which is a major facility sponsored by the National Science Foundation (NSF) under Cooperative Agreement No. 1852977. A. C. was supported by the NOAA Climate Program Office Climate Variability and Predictability (CVP), and Modeling, Analysis, Predictions and Projections (MAPP) Programs.
Funding
Portions of this study were supported by the Regional and Global Model Analysis (RGMA) component of Earth and Environmental Systems Modeling in the Earth and Environmental Systems Sciences Division of the U.S. Department of Energy's Office of Biological & Environmental Research (BER) via National Science Foundation IA 1947282, and also by RGMA support of the HiLAT project at Pacific Northwest National Laboratory which is operated by Battelle for the U.S. Department of Energy under contract DE-AC05-76RLO1830. This work also was supported by the National Center for Atmospheric Research, which is a major facility sponsored by the National Science Foundation (NSF) under Cooperative Agreement No. 1852977. A. C. was supported by the NOAA Climate Program Office Climate Variability and Predictability (CVP), and Modeling, Analysis, Predictions and Projections (MAPP) Programs.
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Meehl, G.A., Teng, H., Capotondi, A. et al. The role of interannual ENSO events in decadal timescale transitions of the Interdecadal Pacific Oscillation. Clim Dyn 57, 1933–1951 (2021). https://doi.org/10.1007/s00382-021-05784-y
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DOI: https://doi.org/10.1007/s00382-021-05784-y