Accessing CEMS-Flood data through MARS requires an understanding of how the data is structured to be able to retrieve it. The tables below show how CEMS-Flood data is organised in MARS. For more information see the MARS data access pages.
Table 1: EFAS MARS terminology and associated keys. The keys can be used to script automatic retrievals from MARS.
| stream | efas | efcl | ||||
|---|---|---|---|---|---|---|
| Description | EFAS operational medium-range forecasts | EFAS historical simulations | ||||
| Data | EFAS daily forecasts | EFAS fillup (operational analysis driven by forecasts) | EFAS operational simulations forced by observations | EFAS historical simulations forced by observations | ||
| class | ce | ce | ce | ce | ||
| expver | 1 | 1 | 1 | 1 | ||
| types | fc | cf | pf | fu | sfo | sfo |
| Comments | Deterministic forecast | Control forecast member (single run) | Perturbed forecast members (several runs) | Fill-up runs are linked with forecast origin. See documentation below | Best analysis (i.e. driven by meteorological observations) at the time of the forecast, run with the current operational system and forcing data at 06:00UTC. | Analysis over the past 25+ years, run with the latest operational system and best available, consolidated meteorological observation. Used as reference to generate the forecast products |
Table 2: GloFAS MARS terminology and associated keys. The keys can be used to script automatic retrievals from MARS. This table is still under development.
| stream | wfas | wfcl | |||
|---|---|---|---|---|---|
| Description | GloFAS daily forecasts, including operational analysis and fillup | GloFAS reanalysis | |||
| Data | GloFAS daily forecasts, perturbed and control forecast | GloFAS fillup using control forecast as forcing | GloFAS simulations forced with reanalysis | GloFAS daily analysis forced with ECMWF reanalysis | |
| class | ce | ce | ce | ce | |
| expver | 1 | 1 | 1 | 1 | |
| types | cf | pf | fu | sfo | sfo |
| Comments | Control forecast member (single run) NOTE: GloFAS is extended beyond day 15 by using the latest available extended-range forecasts | ens numbers 1,2,...,N-1 for type pf NOTE: GloFAS is extended beyond day 15 by using the latest available extended-range forecasts | No ensemble, one simulation per time step, forced with ECMWF cf. | Currently this is forced by the unconsolidated reanalysis | Analysis over the past 25+ years, run with the latest operational system and best available, consolidated meteorological proxy-observation. Used as reference to generate the forecast products |