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ecCodes doesn't allow writing some parameters in GRIB2 (e.g. param=49) regardless a definition exists for them in the param DB

(possible cause? 49 not present in paraId.def file, in addition, 151225, 151219, 151145, 262010, 174098)

Sea-ice temperature (param=260649) can't be used: restricted to some origins?

ECCODES ERROR   :  concept: no match for paramId=260649

ECCODES ERROR   :  concept: input handle edition=2, centre=ecmf

ECCODES ERROR   :  Please check the Parameter Database 'https://apps.ecmwf.int/codes/grib/param-db/?id=260649'

It is currently in use for CARRA/CERRA Using paramid = 262010 the ecCodes couldn't find the GRIB short name (sitemp) as it is in the parameter's DB

Is this the right paramId to use? what about the recently added 262010?

Snow-depth:

param=141 (used by C3S in GRIB1) produces "unknown" name

param=228141 (used by CARRA) has different units (kg/m2 instead of m) involving a factor of 1000 (i.e. users would see different numbers depending on the GRIB edition)

Also... what typeOfFirstFixedSurface value? 1 (ground) or 103 (above ground) at 0m?

shouldn't this be included in GRIB2 parameter definition?

snow density

param=33 produces "unknown" name

Also... what typeOfFirstFixedSurface value? 1 (ground) or 103 (above ground) at 0m?

shouldn't this be included in GRIB2 parameter definition?

Radiation fluxes
(params = 147/146/175/177/179/169/212/178/179)

units in GRIB1 = J/m2; in GRIB2 = W/m2

what's the approach for accumulations in GRIB2? (from the beginning of forecast?)

Wind stresses (param = 180/181)

produces "unknown" name

(potentially same units/accumulation issue as above)

Precipitation (228/142/143)

shouldn't typeOfFirstFixedSurface=1 value be forced by the parameter definition?

• for 143 (convective precipitation): name changes from GRIB1 (cp) to GRIB2 (acpcp) (the GRIB2 short name is different from the Parameters DB) 
• 142 (stratiform precipitation): yet to be fully tested/checked
• 228 (total precipitationparameterNumber = 193 ) produces "unknown" name

snowfall (param 144) and evaporation (param 182)

produce "unknown" name

runoff (8/9/205)

• surface runoff (8) produces "unknown" name
• sub-surface runoff (9) produces "unknowon" Discipline, etc...
  • what typeOfFirstFixedSurface should be used here?
• total runoff (205): yet to be fully tested/checked

Soil Temperature

ParamId = 139

parameterCategory = 128 produces "unknown" name