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Linus says ensemble is sensitive to SST. This particular case was in fact used as part of the argument for coupling the ocean model (NEMO) from day 1 in the ensemble forecast rather than day 10 as used in 2012; days 1-9 used persisted SST anomalies.

Data

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Datasets

From last year's workshop, each field ~ 100Kb. Total size of 'data' and 'data_ls' directories was:5.5G, 1.4G respectively , total of 7Gb.

2015 workshop VM, df reports 40Gb /, 28% used (27G)

Priority is the analyses, oper ens & expt gioi

Analyses:

T1279 T1279L137 20120915 00Z - (single start date), 10 days (to 20120925 00Z), 3hrly? (if not 6hrly)  (note start date for AN is different to forecasts - if starting from 15th Sept is too much, start from 18th)

Operational ensemble as used in 2012:

TL639TL639L91. 20120920 00Z - (single start date), 5 days (to 20120925 00Z), 3/6hrly? (all members)

Current operational ensemble (with NEMO on day 1) (expt id: TBDgioi)

T639TCo639L91. 20120920 00Z - (single start date), 5 days (to 20120925 00Z), 3/6hrly (all members)

Uncertainty runs:

T319L91TL319L91. No NEMO coupling, wave model off (OpenIFS config)

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(c) SPPT/SKEB only - exptid 'gin7'

Dates/steps as above.

Grid resolution (post-processed)

Needs to be good enough to resolve Hurricane Nadine in the plotting. What did we use last year?

Fields : 

MSLP, T2m, 10m winds, 6hrly accum. total precipitation

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