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For some parameters, ECMWF has been providing values in units which are not the official WMO units. The static sample dataset also includes examples of the same parameters but with values provided in the official WMO units. These parameters are provided in files identified by the ECMWF paramId and shortName in the file name but with the additional tag "_wmo_units". For example, the total precipitation parameter, which ECMWF has been providing in units of "metres" (m), is also provided in units of kg/m2 in a file named 228_od_oper_fc_sfc_tp_2024_0001_regular_ll_wmo_units.grib2.
141_od_oper_an_sfc_sd_2024_0001_reduced_gg.grib2
15_od_oper_an_sfc_aluvp_2024_0001_reduced_gg.grib2
164_od_oper_an_sfc_tcc_2024_0001_reduced_gg.grib2
16_od_oper_an_sfc_aluvd_2024_0001_reduced_gg.grib2
174_od_oper_an_sfc_al_2024_0001_reduced_gg.grib2
17_od_oper_an_sfc_alnip_2024_0001_reduced_gg.grib2
186_od_oper_an_sfc_lcc_2024_0001_reduced_gg.grib2
187_od_oper_an_sfc_mcc_2024_0001_reduced_gg.grib2
188_od_oper_an_sfc_hcc_2024_0001_reduced_gg.grib2
18_od_oper_an_sfc_alnid_2024_0001_reduced_gg.grib2
198_od_oper_an_sfc_src_2024_0001_reduced_gg.grib2
206_od_oper_an_sfc_tco3_2024_0001_reduced_gg.grib2
210186_od_oper_an_sfc_aluvpi_2024_0001_reduced_gg.grib2
210187_od_oper_an_sfc_aluvpv_2024_0001_reduced_gg.grib2
210188_od_oper_an_sfc_aluvpg_2024_0001_reduced_gg.grib2
210189_od_oper_an_sfc_alnipi_2024_0001_reduced_gg.grib2
210190_od_oper_an_sfc_alnipv_2024_0001_reduced_gg.grib2
210191_od_oper_an_sfc_alnipg_2024_0001_reduced_gg.grib2
32_od_oper_an_sfc_asn_2024_0001_reduced_gg.grib2
| class / stream / type / levtype | Parameters encoded with ECMWF units | Parameters encoded with WMO units | ||||||
|---|---|---|---|---|---|---|---|---|
| paramId | shortName | name | units | paramId | shortName | name | units | |
| 141 | sd | Snow depth | m of water equivalent | 3066 | sde | Snow depth | m |
| 142 | lsp | Large-scale precipitation | m | 3062 | lsp | Large-scale precipitation | kg m**-2 |
| 143 | cp | Convective precipitation | m | 228143 | cp | Convective precipitation | kg m**-2 |
| 144 | sf | Snowfall | m of water equivalent | 260025 | asnow | Total snowfall | m |
| 182 | e | ||||||
| 198 | src | Skin reservoir content | m of water equivalent | 160198 | srcon | Skin reservoir content | kg m**-2 |
| 205 | ro | Runoff | m | 231002 | rowe | Runoff water equivalent (surface plus subsurface) | kg m**-2 |
| 228216 | fzra | Accumulated freezing rain | m | 231001 | fzrawe | Accumulated freezing rain water equivalent | .Parameters encoded with ECMWF units | Parameters encoded with WMO units | paramId | shortName | name | units | paramId | shortName | name | units |
| 141 | sd | Snow depth | m of water equivalent | 3066 | sde | Snow depth | m |
| 142 | lsp | Large-scale precipitation | m | 3062 | lsp | Large-scale precipitation | kg m**-2 |
| 143228251 | cppev | Convective precipitationPotential evaporation | m | 228143231005 | cppeva | Convective precipitationPotential evaporation | kg m**-2 |
| 144 | sf | Snowfall | m of water equivalent | 260025 | asnow | Total snowfall | m |
| 182 | e |
| 228 | tp | Total precipitation | m | 228228 | tp | Total precipitation | kg m**-2 |
| ||||||||
| ||||||||
| 44 | src | |||||||
| es | Snow evaporation | |||||||
| m of water equivalent | ||||||||
| 231003 | srcon | |||||||
| eswe | Snow evaporation water equivalent | |||||||
| kg m**-2 | ||||||||
| ||||||||
45 | ||||||||
| smlt | ||||||||
| Snowmelt | m of water equivalent | |||||||
| 3099 | rowe | |||||||
| snom | Snowmelt | |||||||
| kg m**-2 |
| 228216 | fzra | Accumulated freezing rain | m | 231001 | fzrawe | |
| 8 | sro | Surface runoff | m | 231010 | ssurfro | Surface runoff | |
| kg m**-2 | ||||||||
| 228251 | pev | ||||||
| 9 | ssro | Sub-surface runoff | |||||
| m | ||||||||
| 231012 | peva | |||||||
| ssurfro | Sub-surface runoff | |||||||
| kg m**-2 | ||||||||
| class / stream / | oper/fc228 | tp | Total precipitation | m | 228228 | tp | Total precipitation | kg m**-2type / levtype | Parameters encoded with ECMWF units | Parameters encoded with WMO units | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| paramId | shortName | name | units | paramId | shortName | name | units | 243 | fal | |||||||||||||||
| ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| 44 | es | Snow evaporation | m of water equivalent | 231003 | eswe | Snow evaporation water equivalent | |||||||||||||||||
| 164 | tcc | Total cloud cover | (0 - 1) | 228164 | tcc | Total cloud cover | % | ||||||||||||||||
| ||||||||||||||||||||||||
| 45 | smlt | Snowmelt | m of water equivalent | 3099 | snom | Snowmelt | kg m**-2 | ||||||||||||||||
| 186 | lcc | Low cloud cover | (0 - 1) | 3073 | lcc | Low cloud cover | % | ||||||||||||||||
|
| 8 | sro | Surface runoff | m | 231010 | ssurfro | Surface runoff | kg m**-2||||||||||||||||
| 9 | ssro | Sub-surface runoff | m | 231012 | ssurfro | Sub-surface runoff | kg m**-2 | ||||||||||||||||
| 187 | mcc | Medium cloud cover | (0 - 1) | 3074 | mcc | Medium cloud cover | % | ||||||||||||||||
| 188 | hcc | High cloud cover | (0 - 1) | 3075 | hcc | High cloud cover | % | Parameters encoded with ECMWF units | Parameters encoded with WMO units | paramId | shortName | name | units | paramId | shortName | name | units|||||||
| ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| 15 | tcc | |||||||||||||||||||||||
| aluvp | UV visible albedo for direct radiation (climatological) | |||||||||||||||||||||||
| (0 - 1) | ||||||||||||||||||||||||
| 210199 | tcc | Total cloud cover | ||||||||||||||||||||||
| aluvp_p | UV visible albedo for direct radiation (climatological) | % | ||||||||||||||||||||||
| 186 | lcc | ||||||||||||||||||||||
| 16 | aluvd | UV visible albedo for diffuse radiation (climatological) | |||||||||||||||||||||
| (0 - 1) | ||||||||||||||||||||||||
| 210198 | lcc | |||||||||||||||||||||||
| aluvd_p | UV visible albedo for diffuse radiation (climatological) | |||||||||||||||||||||||
| % | ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| 17 | mcc | |||||||||||||||||||||||
| alnip | Near IR albedo for direct radiation (climatological) | |||||||||||||||||||||||
| (0 - 1) | ||||||||||||||||||||||||
| 210261 | mcc | |||||||||||||||||||||||
| alnip_p | Near IR albedo for direct radiation (climatological) | |||||||||||||||||||||||
| % | ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| 18 | hcc | |||||||||||||||||||||||
| alnid | Near IR albedo for diffuse radiation (climatological) | |||||||||||||||||||||||
| (0 - 1) | ||||||||||||||||||||||||
| 210260 | hcc | |||||||||||||||||||||||
| alnid_p | Near IR albedo for diffuse radiation (climatological) | |||||||||||||||||||||||
| % | ||||||||||||||||||||||||
| 15 | aluvp |
| 16 | aluvd |
| 17 | alnip |
| 32 | asn | Snow albedo | (0 - 1) | 228032 | asn | Snow albedo | % |
| 18 | alnid | ||||
| ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| 174 | asn | |||||||||||||||||||||||
| al | Albedo (climatological) | |||||||||||||||||||||||
| (0 - 1) | ||||||||||||||||||||||||
| 260509 | ||||||||||||||||||||||||
| al | ||||||||||||||||||||||||
| Forecast albedo | % | |||||||||||||||||||||||
| 174243 | al | fal | Forecast albedoAlbedo (climatological) | (0 - 1) | 260509 | al | Forecast albedo | % | |||||||||||||||
| 210186 | aluvpi | UV visible albedo for direct radiation, isotropic component (climatological) | (0 - 1) | 210201 | aluvpi_p | UV visible albedo for direct radiation, isotropic component (climatological) | % | ||||||||||||||||
| 210187 | aluvpv | UV visible albedo for direct radiation, volumetric component (climatological) | (0 - 1) | 210202 | aluvpv_p | UV visible albedo for direct radiation, volumetric component (climatological) | % | ||||||||||||||||
| 210188 | aluvpg | UV visible albedo for direct radiation, geometric component (climatological) | (0 - 1) | 210200 | aluvpg_p | UV visible albedo for direct radiation, geometric component (climatological) | % | ||||||||||||||||
| 210189 | alnipi | Near IR albedo for direct radiation, isotropic component (climatological) | (0 - 1) | 210263 | alnipi_p | Near IR albedo for direct radiation, isotropic component (climatological) | % | ||||||||||||||||
| 210190 | alnipv | Near IR albedo for direct radiation, volumetric component (climatological) | (0 - 1) | 210264 | alnipv_p | Near IR albedo for direct radiation, volumetric component (climatological) | % | ||||||||||||||||
| 210191 | alnipg | Near IR albedo for direct radiation, geometric component (climatological) | (0 - 1) | 210262 | alnipg_p | Near IR albedo for direct radiation, geometric component (climatological) | % | ||||||||||||||||
| 206 | tco3 | Total column ozone | kg m**-2 | 260132 | tcioz | Total column integrated ozone | Dobson Units (DU) | ||||||||||||||||