Abstract
Using the Community Earth System Model (CESM)-Large Ensemble (LE) surface air temperature (SAT) data, we investigate the multidecadal changes in SAT variability over Central Indian landmass, particularly the Indo-Gangetic (IG) river basin. This region comes under the active influence of the Indian summer monsoon, and during the summer monsoon months (JJA), we observe an amplified cooling (< − 3 °C) trend (1961–2000) in SAT. This SAT trend is considered as a superposition of external forcings and natural climatic variability. The forced response is computed by averaging the trend in 35 ensemble members, which displays a moderate cooling trend due to aerosol-, ozone-, and volcano-only forcings. But the internal variability introduces a wide range of uncertainties in SAT, with majority of the members display a strong cooling trend in the Central Indian region. During the entire period, natural climatic variability dominates over the forced response, which strongly overrides the greenhouse gas (GHG) warming. Here, we separate out the influence of global climate variability on regional climate variability and identify the specific internal variability which is responsible for the multidecadal cooling trend in the analyzed region. Furthermore, we investigate the specific physical mechanism driving the cooling trend and analyze the role of Atlantic multidecadal oscillation (AMO) in its negative phase. The covariability is − 0.74, i.e., AMO accounts for ~ 55% of total variance in the multidecadal variability. In the negative phase of AMO, strong signals of Rossby waves emanating from North Atlantic Ocean propagate across the Eurasian continent, and in the latter half of the twentieth century, the effect of this cold sea surface temperature (SST) anomaly is felt in the Central Indian landmass (particularly over IG river basin) through teleconnection. This study will increase the predictability of multidecadal variability in SAT during summer monsoon season over the Central Indian region with AMO as a strong driving component.
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References
Annamalai H, Hamilton H, Sperber KR (2007) The South Asian summer monsoon and its relationship with ENSO in the IPCC AR4 simulations. J Clim 20:1071–1092
Ashok K, Guan ZY, Yamagata T (2001) Impact of the Indian Ocean dipole on the relationship between the Indian monsoon rainfall and ENSO. Geophys Res Lett 28:4499–4502
Bamzai AS, Shukla J (1999) Relation between Eurasian snow cover, snow depth, and the Indian summer monsoon: an observational study. J Clim 12:3117–3132
Bindoff NL et al (2014) Detection and attribution of climate change: from global to regional. Climate Change 2013: The Physical Science Basis. Cambridge University Press 867–952
Bollasina MA, Ming Y, Ramaswamy V (2011) Anthropogenic aerosols and the weakening of the South Asian summer monsoon. Science 334:502e505
Chen GS, Huang RH (2012) Excitation mechanisms of the teleconnection patterns affecting the July precipitation in Northwest China. J Clim 25(22):7834–7851
Chen W, Takahashi M, Graf HF (2003) Interannual variations of stationary planetary wave activity in the northern winter troposphere and stratosphere and their relations to NAM and SST. J Geophys Res 108(D24):4797. https://doi.org/10.1029/2003JD003834
Collins M (2013) Long-term climate change: projections, commitments and irreversibility. Climate Change 2013: The Physical Science Basis. Cambridge University Press 1029–1136
Desar C, Knutti R, Solomon S (2012a) Communication of the role of natural variability in future North American climate. Nat Clim Chang 2:775–779
Desar C, Phillips AS, Bourdette V (2012b) Uncertainty in climate change projections: the role of internal variability. Clim Dyn 38:527–546
Deser C, Phillips A, Alexander MA (2014) Projecting North American climate over the next 50 years: uncertainty due to internal variability. J Clim 27:2271–2296
Enfield DB, Mestas-Nunez AM, Trimble PJ (2001) The Atlantic multidecadal oscillation and its relationship to rainfall and river flows in the continental U.S. Geophys Res Lett 28:2077–2080
Gadgil S, Rajeevan M, Francis PA (2007) Monsoon variability: links to major oscillations over the equatorial Pacific and Indian oceans. Curr Sci 93:182–194
Goswami BN, Madhusoodanan MS, Neema CP (2006) A physical mechanism for North Atlantic SST influence on the Indian summer monsoon. Geophys Res Lett 33:L02706
Halder S, Saha SK, Dirmeyer PA, Chase TN, Goswami BN (2016) Investigating the impact of land-use land-cover change on Indian summer monsoon daily rainfall and temperature during 1951–2005 using a regional climate model. Hydrol and Earth Syst Sci 20(5):1765
Harris I, Jones PD, Osborn TJ, Lister DH (2014) Updated high-resolution grids of monthly climatic observations - the CRU TS3.10 Dataset. Int J Climatol 34:623–642
Hawkins E, Sutton E (2009) The potential to narrow uncertainty in regional climate predictions. Bull Am Meteorol Soc 90:1095–1107
Hurrell J et al (2013) The Community Earth System Model: a framework for collaborative research. Bull Am Meteorol Soc 94:1339–1360
Intergovernmental Panel on Climate Change (IPCC) (2014) Climate Change 2014: synthesis report. Fifth Assessment Report
Joshi MK, Rai A (2015) Combined interplay of the Atlantic multidecadal oscillation and the interdecadal Pacific oscillation on rainfall and its extremes over Indian subcontinent. Clim Dyn 44:3339–3359
Kalnay E, Kanamitsu M, Kistler R, Collins W, Deaven D, Gandin L, Iredell M, Saha S, White G, Woollen J, Zhu Y, Leetmaa A, Reynolds R, Chelliah M, Ebisuzaki W, Higgins W, Janowiak J, Mo KC, Ropelewski C, Wang J, Jenne R, Joseph D (1996) The NCEP/NCAR 40-year reanalysis project. Bull Am Meteorol Soc 77:437–471
Kay JE, Deser C, Phillips A, Mai A, Hannay C, Strand G, Arblaster JM, Bates SC, Danabasoglu G, Edwards J, Holland M, Kushner P, Lamarque JF, Lawrence D, Lindsay K, Middleton A, Munoz E, Neale R, Oleson K, Polvani L, Vertenstein M (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-13-00255.1:1333-1349
Kirtman B et al (2014) Near-term climate change: Projections and predictability. Climate Change 2013: The Physical Science Basis. Cambridge University Press, pp 953–1028
Knutson TR, Zeng F, Wittenberg AT (2013) Multimodel assessment of regional surface temperature trends: CMIP3 and CMIP5 twentieth-century simulations. J Clim 26:8709–8743
Kripalani RH, Kulkarni AA (1996) Assessing the impacts of El Niño and non-El Niño-related droughts over India. Drought News 8:11–13
Kripalani RH, Kulkarni AA (1999) Climatology and variability of historical Soviet snow depth data: some new perspectives in snow-Indian monsoon teleconnections. Clim Dyn 15:475–489
Krishna KK, Rajgopalan B, Cane MK (1999) On the weakening relationship between the Indian monsoon and ENSO. Science 284:2156–2159
Lamarque JF, Bond TC, Eyring V, Granier C, Heil A, Klimont Z, Lee D, Liousse C, Mieville A, Owen B, Schultz MG, Shindell D, Smith SJ, Stehfest E, van Aardenne J, Cooper OR, Kainuma M, Mahowald N, McConnell JR, Naik V, Riahi K, van Vuuren DP (2010) Historical (1850–2000) gridded anthropogenic and biomass burning emissions of reactive gases and aerosols: methodology and application. Atmos Chem Phys 10:7017–7039
Lamarque JF, Kyle GP, Meinshausen M, Riahi K, Smith SJ, van Vuuren DP, Conley AJ, Vitt F (2011) Global and regional evolution of short-lived radiatively-active gases and aerosols in the representative concentration pathways. Clim Chang 109:191–212
Lawrence DM, Oleson KW, Flanner MG, Fletcher CG, Lawrence PJ, Levis S, Swenson SC, Bonan GB (2012) The CCSM4 land simulation, 1850–2005: assessment of surface climate and new capabilities. J Clim 25:2240–2260
Lindsay K, Bonan GB, Doney SC, Hoffman FM, Lawrence DM, Long MC, Mahowald NM, Keith Moore J, Randerson JT, Thornton PE (2014) Preindustrial-control and twentieth-century carbon cycle experiments with the Earth System Model CESM1 (BGC). J Clim 27:8981–9005
Liu YY, Wang L, Zhou W, Chen W (2014) Three Eurasian teleconnection patterns: spatial structures, temporal variability, and associated winter climate anomalies. Clim Dyn 42(11–12):2817–2839
Long MC, Lindsay K, Peacock S, Moore JK, Doney SC (2013) Twentieth-century oceanic carbon uptake and storage in CESM1 (BGC). J Clim 26:6775–6800
Lorenz EN (1963) Deterministic nonperiodic flow. J Atmos Sci 20:130–141
Meehl GA, Hu A, Arblaster J (2013) Externally forced and internally generated decadal climate variability associated with the interdecadal Pacific oscillation. J Clim 26:7298–7310
Meinshausen M, Smith SJ, Calvin K, Daniel JS, Kainuma MLT, Lamarque JF, Matsumoto K, Montzka SA, Raper SCB, Riahi K, Thomson A, Velders GJM, van Vuuren DPP (2011) The RCP greenhouse gas concentrations and their extension from 1765 to 2300. Clim Chang 109:213–241
Moore JK, Lindsay K, Doney SC, Long MC, Misumi K (2013) Marine ecosystem dynamics and biogeochemical cycling in the Community Earth System Model [CESM1 (BGC)]: comparison of the 1990s with the 2090s under the RCP4.5 and RCP8.5 scenarios. J Clim 26:9291–9312
Nath R, Cui X, Nath D, Graf HF, Chen W, Wang L, Gong H, Li Q (2016) CMIP5 multimodel projections of extreme weather events in the humid subtropical Gangetic Plain region of India. Earth’s Future 5:224–239. https://doi.org/10.1002/2016EF000482
Nath R, Nath D, Li Q, Chen W, Cui X (2017) Impact of drought on agriculture in the Indo-Gangetic Plain, India. Adv Atmos Sci 34:335–346
Nath R, Luo Y, Chen W, Cui X (2018) On the contribution of internal variability and external forcing factors to the cooling trend over the humid subtropical Indo-Gangetic Plain in India. Sci Rep 8:18047. https://doi.org/10.1038/s41598-018-36311-5
Paul S, Ghosh S, Oglesby R, Pathak A, Chandrasekharan A, Ramsankaran RA (2016) Weakening of Indian summer monsoon rainfall due to changes in land use land cover. Sci Reports 6:32177
Plumb RA (1985) On the three-dimensional propagation of stationary waves. J Atmos Sci 42:217–229
Pokhrel S, Chaudhari HS, Saha SK (2012) ENSO, IOD and Indian summer monsoon in NCEP climate forecast system. Clim Dyn 39:2143–2165
Ramanathan V, Carmichael G (2008) Global and regional climate changes due to black carbon. Nat Geosci:221e227
Ramanathan V, Li F, Ramana MV (2007) Atmospheric brown clouds: hemispherical and regional variations in long-range transport, absorption, and radiative forcing. J Geophys Res 112:D22S21
Rao BB, Sandeep VM, Rao VUM et al (2012) Potential evapotranspiration estimation for Indian conditions: improving accuracy through calibration coefficients. NICRA 112:Tech. Bull No 1/2012
Ricke KL, Caldeira K (2014) Natural climate variability and future climate policy. Nat Clim Chang 4:333–338
Saji NH, Goswami BN, Vinayachandran PN (1999) A dipole mode in the tropical Indian Ocean. Nature 401:360–363
Santer BD, Mears C, Doutriaux C, Caldwell P, Gleckler PJ, Wigley TML, Solomon S, Gillett NP, Ivanova D, Karl TR, Lanzante JR, Meehl GA, Stott PA, Taylor KE, Thorne PW, Wehner MF, Wentz FJ (2011) Separating signal and noise in atmospheric temperature changes: the importance of timescale. J Geophys Res 116(D22105). https://doi.org/10.1029/2011JD016263
Sengupta A, Rajeevan M (2013) Uncertainty quantification and reliability analysis of CMIP5 projections for the Indian summer monsoon. Curr Sci 105:1692–1703
Slingo J (1999) The Indian summer monsoon and its variability. beyond El Niño, Springer, Chapter 5, https://doi.org/10.1007/2F978-3-642-58369-8
Tebaldi C, Arblaster JM, Knutti R (2011) Mapping model agreement on future climate projections. Geophys Res Lett 38(L23701). https://doi.org/10.1029/2011GL049863
Wallace JM, Zhang Y, Renwick JA (1995) Dynamic contribution to hemispheric mean temperature trends. Science 270:780–783
Wallace JM, Deser C, Smoliak BV (2014) Attribution of climate change in the presence of internal variability. Climate Change: Multidecadal and Beyond. Asia-Pacific Weather and Climate Series, World Scientific 6
Xu ZQ, Fan K, Wang HJ (2015) Decadal variation of summer precipitation over China and associated atmospheric circulation after the late 1990s. J Clim 28(10):4086–4106
Yadav RK (2009a) Changes in the large-scale features associated with the Indian summer monsoon in the recent decades. Int J Climatol 29:117–133
Yadav RK (2009b) Role of equatorial Central Pacific and northwest of North Atlantic 2-metre surface temperatures in modulating Indian summer monsoon variability. Clim Dyn 32:549–563
Zhu YL, Wang HJ, Zhou W, Ma JH (2011) Recent changes in the summer precipitation pattern in East China and the background circulation. Clim Dyn 36(7–8):1463–1473
Acknowledgements
We are thankful to Earth System Grid at NCAR for providing the CESM-LE data. This work is supported by the National Key Research and Development Program of China (2017YFA0603703) and National Natural Science Foundation of China International Cooperation and Exchange Program (41850410491).
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R.N. has designed, analyzed, and interpret the results, and Y.L. gave valuable suggestions during this research. All authors contributed ideas in developing the research, discussed the results, and wrote the paper.
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Nath, R., Luo, Y. Disentangling the influencing factors driving the cooling trend in boreal summer over Indo-Gangetic river basin, India: role of Atlantic multidecadal oscillation (AMO). Theor Appl Climatol 138, 1–12 (2019). https://doi.org/10.1007/s00704-019-02779-y
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DOI: https://doi.org/10.1007/s00704-019-02779-y