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Data and metadata defficiencies
Known issue number | Centre | Forecasts or Hindcasts | Start dates(1) | Description |
---|---|---|---|---|
D1. | Met Office | Both | All | Near-surface temperatures (6-hourly and daily minimum and maximum) and dew-point temperature are encoded as being calculated at a height of 2m. |
D2. | Met Office | Both | Previous to February 2018 | Global grid is uncomplete (just 180 latitude points between 90S and 89N) |
D3. | Parameters in pressure levels are not globally complete, having "missing value indicators" in points below the orography | |||
D4. | Météo-France (system=5) | Forecasts | All | There is an issue with the postprocessing used at origin of the lagged start dates. Only members #27 to #51 are affected having data with a time shift of 7 days (168 hours). For instance, data with date/time labelled as YYYYMM08 00h would in fact correspond to YYYYMM01 00h. |
D5. | CMCC (system=3) | Hindcasts | Years between 1993 and 1999 | There are anomalous values of SST (and associated parameters, e.g. fluxes, and vertical oceanic temperature profiles) appearing in the first hours of a very limited number of ensemble members of forecasts. The issue is caused by a bug in the oceanic perturbation generation tools used at origin to produce the ocean initial conditions. The errors/perturbations appear initially as excessively high SST values, they are confined to the reported hindcast years, in a limited number of grid points all in the tropical Pacific. They are very quickly dissipated by the coupled model physics and dynamics, affecting, therefore, only the first 24 hours of the forecasts at most. |
D6. | CMCC (system=3) | Both | All | There are some variables affected by a spin-up issue. This affect just some ensemble members depending on the initial conditions each member started from. Unfortunately as the selection of the forecast members is done randomly from a bigger pool of initial conditions, there is no metadata available about that in the current service based on GRIB files stored at ECMWF's MARS archive. |
D7. | DWD | Hindcasts | All 2017 start dates | For this forecasting system, year 2017 start dates have been computed as hindcasts and not real-time forecasts |
Data gaps
Known issue number | Centre | Forecasts or Hindcasts | Start dates(1) | Description |
---|---|---|---|---|
G1. | Met Office | Forecasts | 20180102 | No data is available |
G2. | Met Office | Forecasts | Nominal start dates previous to November 2018 | Monthly statistics and anomalies are just available for 50 members. Specifically, the 50 members closest and previous or equal to the 1st of the nominal start month |
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