- Poli, P, H Hersbach, DP Dee, P Berrisford, AJ Simmons, F Vitart, P Laloyaux, DGH Tan, C Peubey, J-N Thépaut, Y Trémolet, E V Hólm, M Bonavita, L Isaksen, and M Fisher, 2016: ERA-20C: An Atmospheric Reanalysis of the Twentieth Century. J. Climate, 29, 4083–4097, doi: 10.1175/JCLI-D-15-0556.1.
- Poli, P, Hersbach, H, Berrisford, P, Dee, DP, Simmons, A, Laloyaux, P. (2015) ERA-20C Deterministic. ERA Report Series 20
The following references describe system components:
- Initial, ensemble production, from which background errors were derived:
Poli, P, Hersbach, H, Tan, DGH, Dee, DP, Thepaut, J-J, Simmons, A, Peubey, C, Laloyaux, P, Komori, T, Berrisford, P, Dragani, R, Trémolet, Y, Hólm, EV, Bonavita, M, Isaksen, L, Fisher, M. (2013) The data assimilation system and initial performance evaluation of the ECMWF pilot reanalysis of the 20th-century assimilating surface observations only (ERA-20C). ERA Report Series 14 - Observation feedback:
Poli, P, Hersbach, H, Berrisford, P, Dee, DP. (2015) The observation feedback archive for the ICOADS and ISPD data sets. ERA Report Series 18