| generatingProcessIdentifier | Version | Startdate | Starttime | Enddate | Endtime | Comment |
|---|
| 1 | 3.1 | 20030304 | 12Z | 20030521 | 12Z | (on IBDM power4 |
| 2 | 3.3 | 20030522 | 12Z | 20030930 | 12Z | (included) |
| 3 | 3.5 | 20031001 | 12Z | 20040531 | 12Z | (included) |
| 4 | 3.9 | 20040601 | 12Z | 20050417 | 12Z | (included) |
| 5 | 3.15 | 20050418 | 12Z | 20060131 | 12Z | (included) |
| 6 | 3.17 | 20060201 | 12Z | 20061113 | 12Z | (included) |
| 7 | 3.20 | 20061114 | 12Z | 20071130 | 12Z | (included) |
| 8 | 4.0 | 20071201 | 12Z | 20090224 | 12Z | (included) |
| 9 | 4.7.1 | 20090225 | 12Z | 20091129 | 12Z | (included) |
| 10 | 4.8 | 20091130 | 12Z | 20100711 | 12Z | (included) |
| 11 | 4.12 | 20100712 | 12Z | 20120702 | 00Z | (included) |
| 12 | 4.21 | 20120702 | 12Z | 20130121 | 12Z | (included) |
| 13 | 4.26 | 20130122 | 00Z | 20140118 | 00Z | (included) |
| 14 | 5.0 | 20140218 | 12Z | 20150331 | 12Z | (included) |
| 15 | 5.01 | 20150401 | 00Z | 20160131 | 12Z | (included) |
| 16 | 5.03 | 20160201 | 00Z | 20160607 | 12Z | (included ivybridge processors) |
| 17 | 5.03 | 20160608 | 00Z | 20161130 | 12Z | (included broadwell processors) |
| 18 | ? | 20161201 | 00Z | present |
| Ensemble members increased to 20 |
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