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Figure 2.36 shows changes in ENSO variability over time. The upper panel shows multi-centennial changes while the lower panel shows changes during the instrumental period.


---------------------------------------------------
 How to cite this dataset
 ---------------------------------------------------
 When citing this dataset, please include both the data citation below (under &#x27;Citable as&#x27;) and the following citation for the report component from which the figure originates:
Gulev, S.K., P.W. Thorne, J. Ahn, F.J. Dentener, C.M. Domingues, S. Gerland, D. Gong, D.S. Kaufman, H.C. Nnamchi, J. Quaas, J.A. Rivera, S. Sathyendranath, S.L. Smith, B. Trewin, K. von Schuckmann, and R.S. Vose, 2021: Changing State of the Climate System. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change[Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 287–422, doi:10.1017/9781009157896.004.

---------------------------------------------------
 Sources of additional information
 ---------------------------------------------------
 The following weblinks are provided in the Related Documents section of this catalogue record:
 - Link to the report component containing the figure (Chapter 2)
 - Link to the Supplementary Material for Chapter 2, which contains details on the input data used in Table 2.SM.1
 


---------------------------------------------------
 Figure subpanels
 ---------------------------------------------------
 There are two subpanels. Data are provided for lower panel. Links to the data used for the upper panel are provided as part of the Supplementary Material for Chapter 2


---------------------------------------------------
 List of data provided
 ---------------------------------------------------
 This dataset contains 30-year standard deviations in instrumental Nino 3.4, the proxy mean, and the Southern Oscillation Index (SOI), beginning from the first SOI data (1876-1905).


---------------------------------------------------
 Data provided in relation to figure
 ---------------------------------------------------
 Panel b:
 
 - Data file: Figure_2_36-instrumental_period_data.csv, second column blue line
 - Data file: Figure_2_36-instrumental_period_data.csv, third column cyan line
 - Data file: Figure_2_36-instrumental_period_data.csv, fourth column orange line</gco:CharacterString>
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