The ensembles members are obtained by lagged runtimes depending on release date. There are 12 release dates, corresponding to the 15th of each month. The members for the mid-january 1982 are the following runtime:

Year	Month	Day	Hour
1981	12	12	at 00, 06, 12 and 18 UTC
1981	12	17	at 00, 06, 12 and 18 UTC
1981	12	22	at 00, 06, 12 and 18 UTC
1981	12	27	at 00, 06, 12 and 18 UTC
1982	01	1	at 00, 06, 12 and 18 UTC
1982	01	6	at 00, 06, 12 and 18 UTC|

Thus the runtimes for the 12 release dates, on each year, are indicated in the tables below (the default 16 initializations defining members are indicated in boldface, as taken by the R package for data access:

Mid-January
Month	Day	Hour	Runtime axis index(*)
12 (Y-1)	12	at 00, 06*, 12 and 18 UTC	2337 (12 Dec 1989 06:00:00 UTC)
12 (Y-1)	17	at 00, 06*, 12 and 18 UTC	2341 (17 Dec 1989 06:00:00 UTC)
12 (Y-1)	22	at 00, 06*, 12 and 18 UTC	2345 (22 Dec 1989 06:00:00 UTC)
12 (Y-1)	27	at 00, 06*, 12 and 18 UTC	2349 (27 Dec 1989 06:00:00 UTC)
01	1	at 00, 06, 12 and 18 UTC
01	6	at 00, 06, 12 and 18 UTC
Mid-February
Month	Day	Hour
01	11	at 00, 06, 12 and 18 UTC
01	16	at 00, 06, 12 and 18 UTC
01	21	at 00, 06, 12 and 18 UTC
01	26	at 00, 06, 12 and 18 UTC
01	31	at 00, 06, 12 and 18 UTC
02	5	at 00, 06, 12 and 18 UTC
Mid-March
Month	Day	Hour	Runtime axis index (**)
02	10	at 00, 06, 12 and 18 UTC
02	15	at 00, 06, 12 and 18 UTC
02	20	at 00, 06, 12 and 18 UTC
02	25	at 00, 06, 12 and 18 UTC
03	2	at 00**, 06, 12 and 18 UTC	4736 (2 Mar 1998 00:00:00 UTC)
03	7	at 00, 06, 12 and 18 UTC
Mid-April
Month	Day	Hour
03	12	at 00, 06, 12 and 18 UTC
03	17	at 00, 06, 12 and 18 UTC
03	22	at 00, 06, 12 and 18 UTC
03	27	at 00, 06, 12 and 18 UTC
04	1	at 00, 06, 12 and 18 UTC
04	6	at 00, 06, 12 and 18 UTC
Mid-May
Month	Day	Hour
04	11	at 00, 06, 12 and 18 UTC
04	16	at 00, 06, 12 and 18 UTC
04	21	at 00, 06, 12 and 18 UTC
04	26	at 00, 06, 12 and 18 UTC
05	1	at 00, 06, 12 and 18 UTC
05	6	at 00, 06, 12 and 18 UTC
Mid-June
Month	Day	Hour
05	11	at 00, 06, 12 and 18 UTC
05	16	at 00, 06, 12 and 18 UTC
05	21	at 00, 06, 12 and 18 UTC
05	26	at 00, 06, 12 and 18 UTC
05	31	at 00, 06, 12 and 18 UTC
06	5	at 00, 06, 12 and 18 UTC
Mid-July
Month	Day	Hour
06	10	at 00, 06, 12 and 18 UTC
06	15	at 00, 06, 12 and 18 UTC
06	20	at 00, 06, 12 and 18 UTC
06	25	at 00, 06, 12 and 18 UTC
06	30	at 00, 06, 12 and 18 UTC
07	5	at 00, 06, 12 and 18 UTC
Mid-August
Month	Day	Hour
07	10	at 00, 06, 12 and 18 UTC
07	15	at 00, 06, 12 and 18 UTC
07	20	at 00, 06, 12 and 18 UTC
07	25	at 00, 06, 12 and 18 UTC
07	30	at 00, 06, 12 and 18 UTC
08	4	at 00, 06, 12 and 18 UTC
Mid-September
Month	Day	Hour
08	9	at 00, 06, 12 and 18 UTC
08	14	at 00, 06, 12 and 18 UTC
08	19	at 00, 06, 12 and 18 UTC
08	24	at 00, 06, 12 and 18 UTC
08	29	at 00, 06, 12 and 18 UTC
09	3	at 00, 06, 12 and 18 UTC
Mid-October
Month	Day	Hour
09	8	at 00, 06, 12 and 18 UTC
09	13	at 00, 06, 12 and 18 UTC
09	18	at 00, 06, 12 and 18 UTC
09	23	at 00, 06, 12 and 18 UTC
09	28	at 00, 06, 12 and 18 UTC
10	3	at 00, 06, 12 and 18 UTC
Mid-November
Month	Day	Hour
10	8	at 00, 06, 12 and 18 UTC
10	13	at 00, 06, 12 and 18 UTC
10	18	at 00, 06, 12 and 18 UTC
10	23	at 00, 06, 12 and 18 UTC
10	28	at 00, 06, 12 and 18 UTC
11	2	at 00*, 06, 12 and 18 UTC
11	7	at 00*, 06, 12 and 18 UTC
Mid-December
Month	Day	Hour	Runtime axis index(*)
11	12	at 00*, 06, 12 and 18 UTC	2312 (12 Nov 1989 00:00:00 UTC)
11	17	at 00*, 06, 12 and 18 UTC	2316 (17 Nov 1989 00:00:00 UTC)
11	22	at 00*, 06, 12 and 18 UTC	2320 (22 Nov 1989 00:00:00 UTC)
11	27	at 00*, 06, 12 and 18 UTC	2324 (27 Nov 1989 00:00:00 UTC)
12	2	at 00, 06*, 12 and 18 UTC	2329 (2 Dec 1989 06:00:00 UTC)
12	7	at 00, 06*, 12 and 18 UTC	2333 (7 Dec 1989 06:00:00 UTC)

* These initializations are missing from the original dataset for year 1989.

** This initialization is missing for year 1998

NOTE: The index of the missing initializations is indicated in the corresponding rows in the table.