Articles | Volume 9, issue 2
https://doi.org/10.5194/esd-9-383-2018
https://doi.org/10.5194/esd-9-383-2018
Research article
 | 
18 Apr 2018
Research article |  | 18 Apr 2018

Quantifying changes in spatial patterns of surface air temperature dynamics over several decades

Dario A. Zappalà, Marcelo Barreiro, and Cristina Masoller

Data sets

An algorithm for fast Hilbert transform of real functions R. Bilato, O. Maj, and M. Brambilla https://doi.org/10.1007/s10444-014-9345-4

NCEP-DOE AMIP-II Reanalysis (R-2) M. Kanamitsu, W. Ebisuzaki, J. Woollen, S.-K. Yang, J. J. Hnilo, M. Fiorino, and G. L. Potter https://doi.org/10.1175/BAMS-83-11-1631

The ERA-Interim reanalysis: configuration and performance of the data assimilation system D. P. Dee, S. M. Uppala, A. J. Simmons, P. Berrisford, P. Poli, S. Kobayashi, U. Andrae, M. A. Balmaseda, G. Balsamo, P. Bauer, P. Bechtold, A. C. M. Beljaars, L. van de Berg, J. Bidlot, N. Bormann, C. Delsol, R. Dragani, M. Fuentes, A. J. Geer, L. Haimberger, S. B. Healy, H. Hersbach, E. V. Hólm, L. Isaksen, P. Kållberg, M. Köhler, M. Matricardi, A. P. McNally, B. M. Monge-Sanz, J.-J. Morcrette, B.-K. Park, C. Peubey, P. de Rosnay, C. Tavolato, J.-N. Thépaut, and F. Vitart https://doi.org/10.1002/qj.8282011

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Short summary
The dynamics of our climate involves multiple timescales, and while a lot of work has been devoted to quantifying variations in time-averaged variables or variations in their seasonal cycles, variations in daily variability that occur over several decades still remain poorly understood. Here we analyse daily surface air temperature and demonstrate that inter-decadal changes can be precisely identified and quantified with the Hilbert analysis tool.
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