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ERA5 (Hersbach et al., 2019) est la dernière version des réanalyses de ECMWF. Plusieurs sources d’informations sont assimillées dans le cadre de la réanalyse ERA5 comme les observations de stations de surface, les observations satellitaires, les METAR, etc. Les données ont été téléchargés à partir du Climate Data Store de Copernicus (C3S, 2017).
2-D fields (RPN only)
| TT | 2 metre temperature [°C] | 1-hourly | analysis |
| T5 | 2m min temperature [°K] | daily | derived from 1h 2m TT analysis |
| T9 | 2m max temperature [°K] | daily | derived from 1h TT 2m analysis |
| TD | 2 metre dewpoint temperature [°C] | 1-hourly | analysis |
| PC | Convective precipitation [m/s] | 1-hourly | forecast |
| PR | Total precipitation [m/s] | 1-hourly | forecast |
| UU | 10 metre U wind component [knots] | 1-hourly | analysis |
| VV | 10 metre V wind component [knots] | 1-hourly | analysis |
| EVAP | Evaporation [m/s of water equivalent] | 1-hourly | forecast |
| DN | Snow density [kg m**-3] | 1-hourly | analysis |
| SWE | Snow water equivalent [m of water equivalent] | 1-hourly | analysis |
| SN | Snowfall [m/s of water equivalent] | 1-hourly | forecast |
| J8 | Skin temperature [K] | 1-hourly | analysis |
| PN | Mean sea level pressure [hPa] | 1-hourly | analysis |
| P0 | Surface pressure [hPa] | 1-hourly | analysis |
| ro | Runoff [m] | 1-hourly | forecast |
| TRAF | Surface runoff [mm/s] | 1-hourly | forecast |
| TDRA | Sub-surface runoff [mm/s] | 1-hourly | forecast |
| AV | Surface latent heat flux [W/m**2] | 1-hourly | forecast |
| AH | Surface sensible heat flux [W/m**2] | 1-hourly | forecast |
| AS | Surface net solar radiation [W/m**2] | 1-hourly | forecast |
| AI | Surface net thermal radiation [W/m**2] | 1-hourly | forecast |
| ABE | Available buoyant energy [J/kg] | 1-hourly | analysis |
| IH | Total column water vapour [kg/m**2] | 1-hourly | analysis |
| GZ | Geopotential at 500 hPa [dm] | 1-hourly | analysis |
| TM | Sea surface temperature [K] | daily | analysis |
| LG | Sea ice area fraction [0-1] | daily | analysis |
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Location: RPN format : ~data/ReAnalysis/ERA5/2D_Fields
2-D fields (NetCDF only) (hourly fields)
Fields are in monthly files with one variable per file. Files are compressed with a deflate level of 6 and chunked to the grid dimension. Please note that as 08-09-2021 01 October 2024 all months up to 202106 202405 were downloaded and are the final version of ERA5. The months of 202107, 202108 and 202109 were also downloaded, but they are from the temporary version of ERA5 and will be replaced in the near future.Please note that
Please note :
- msl, sd, tp, t2m, u10, v10, i10fg, z_500, sst and siconc are available from 194001
- even if the output of sst and siconc is available hourly from CDS API, it only change one time a day, so it was downloaded only at 12Z.
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- Due to interpolation from the gaussian grid to the global latlon grid by ECMWF and also due a precision loss when packing the fields into an integer, it can happen to have very small negative precipitation values.
| t2m | 2 metre temperature | ||||
| t2m | 2 metre temperature [K] | 1-hourly | analysis | ||
| d2m | 2 metre dewpoint temperature [K] | 1-hourly | analysis | ||
| d2m | 2 metre dewpoint temperature [K] | 1-hourly | analysis | ||
| q2m | 2 metre specific humidity1 [kg/kg] | 1-hourly | analysis | ||
| r2m | 2 metre relative humidity2 [% | cp | Convective precipitation [m] | 1-hourly | forecast analysis |
| tp cape | Total precipitation [mConvective available potential energy [J kg**-1] | 1-hourly | forecast analysis | ||
| u10 cp | 10 metre U wind component Convective precipitation [m/s] | 1-hourly | analysis forecast | ||
| v10 tp | 10 metre V wind component Total precipitation [m/s] | 1-hourly | analysis forecast | ||
| e ptype | Evaporation [m of water equivalentPrecipitation type [dimensionless] | 1-hourly | forecast | ||
| rsn u10 | Snow density [kg m**-310 metre U wind component [m/s] | 1-hourly | analysis | ||
| sd v10 | Snow depth (snow water equivalent) [m of water equivalent10 metre V wind component [m/s] | 1-hourly | analysis | ||
| sf i10fg | Snowfall Instantaneous 10 metre wind gust [m of water equivalent/s] | 1-hourly | forecast | ||
| fg10 | Maximum 10m wind gust since previous post-processing[m/s | skt | Skin temperature [K] | 1-hourly | analysis forecast |
| msl e | Mean sea level pressure [PaEvaporation [m of water equivalent] | 1-hourly | analysis forecast | ||
| sp rsn | Surface pressure [PaSnow density [kg m**-3] | 1-hourly | analysis | ||
| ro sd | Runoff Snow depth (snow water equivalent) [m of water equivalent] | 1-hourly | forecast analysis | ||
| sro sf | Surface runoff Snowfall [m of water equivalent] | 1-hourly | forecast | ||
| ssro smelt | Sub-surface runoff Snowmelt [m of water equivalent] | 1-hourly | forecast | ||
| slhf skt | Surface latent heat flux [J m**-2Skin temperature [K] | 1-hourly | forecast analysis | ||
| sshf stl1 | Surface sensible heat flux [J m**-2Soil temperature level 1 [K] | 1-hourly | forecast analysis | ||
| ssr stl2 | Surface net solar radiation [J m**-2 Soil temperature level 2 [K] | 1-hourly | forecast analysis | ||
| str msl | Surface net thermal radiation [J m**-2Mean sea level pressure [Pa] | 1-hourly | forecast analysis | ||
| cape sp | Convective available potential energy [J kg**-1Surface pressure [Pa] | 1-hourly | analysis | tcc | Total cloud cover [0-1|
| ro | Runoff [m] | 1-hourly | forecast | ||
| sro | Surface runoff [m] | 1-hourly | analysisforecast | ||
| tcwv ssro | Total column water vapour [kg m**-2Sub-surface runoff [m] | 1-hourly | analysis forecast | ||
| slhf | Vertically integrated moisture divergence [kg | Surface latent heat flux [J m**-2] | 1-hourly | forecast | |
| sshf | Vertical velocity at 500 hPa [Pa s | Surface sensible heat flux [J m**- | 12] | 1-hourly | analysisforecast |
| mslhf | Mean surface latent heat flux [W m**-2 | z_500 | Geopotential at 500 hPa [m2/s2] | 1-hourly | analysis forecast |
| sst msshf | Sea Mean surface temperature [K] | daily | analysis | ||
| siconc | Sea ice area fraction [0-1] | daily | analysis |
1q2m was computed from d2m and sp with Teten's formula using equations 7.4 and 7.5 from Part IV, Physical processes section (Chapter 7, section 7.2.1b) in the documentation of the IFS for CY41R2
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SST & sea ice fraction (RPN only)
Even though these fields are available 1-hourly, they change over ocean only once a day between 22Z and 23Z. Therefore we only have these fields once per day at 12Z.
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Note: Units are given for RPN format. For units in NetCDF format check inside files!
Location:
UQAM:
RPN format : ~data/ReAnalysis/ERA5/SST_SeaIce
Beluga:
RPN format : ~winger/projects/rrg-laprise/GEM_Data/SST_SeaIce_degK/ERA5
3-D fields (RPN only)
1-hourly from 1979 to current. We keep adding recent months upon request.
The following fields are available on these pressure levels:
1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 700, 650, 600, 550, 500,
450, 400, 350, 300, 250, 225, 200, 175, 150, 125, 100, 70, 50, 30, 20, 10, 7, 5, 3, 2, 1
...
| sensible heat flux [W m**-2] | 1-hourly | forecast | |
| ssr | Surface net solar radiation [J m**-2] | 1-hourly | forecast |
| str | Surface net thermal radiation [J m**-2] | 1-hourly | forecast |
| ssrd | Surface solar radiation downwards [J m**-2] | 1-hourly | forecast |
| strd | Surface thermal radiation downwards [J m**-2] | 1-hourly | forecast |
| ttr | Top net long-wave (thermal) radiation [J m**-2] | 1-hourly | forecast |
| tcc | Total cloud cover [0-1] | 1-hourly | analysis |
| tcwv | Total column water vapour [kg m**-2] | 1-hourly | analysis |
| vimd | Vertically integrated moisture divergence [kg m**-2] | 1-hourly | forecast |
| w_500 | Vertical velocity at 500 hPa [Pa s**-1] | 1-hourly | analysis |
| z_500 | Geopotential at 500 hPa [m2/s2] | 1-hourly | analysis |
| sst | Sea surface temperature [K] | daily | analysis |
| siconc | Sea ice area fraction [0-1] | daily | analysis |
1q2m was computed from d2m and sp with Teten's formula using equations 7.4 and 7.5 from Part IV, Physical processes section (Chapter 7, section 7.2.1b) in the documentation of the IFS for CY41R2
2r2m was computed from d2m and t2m with Teten's formula using equation 7.5 from Part IV, Physical processes section (Chapter 7, section 7.2.1b) in the documentation of the IFS for CY41R2
Location:
UQAM:
NetCDF format: ~archive/REANALYSES/ERA5/1h
2-D fields (NetCDF only) (daily fields)
Daily fields are not directly available from ERA5. The daily minimum, maximum and average of the instantaneous hourly fields were computed with [00Z,23Z] of a given day. The data is available from 1940.
| tavg | 2 metre daily average temperature [K] | daily | analysis |
| tmax | 2 metre daily maximum temperature [K] | daily | analysis |
| tmin | 2 metre daily minimum temperature [K] | daily | analysis |
Location:
UQAM:
RPN NetCDF format : ~data~archive/ReAnalysisREANALYSES/ERA5/Pilots
Beluga:
RPN format : ~/projects/rrg-laprise/GEM_Data/Driving_data/ERA5
ERA5 Preliminary backextension 1950-1978
Period : 195001 to 197812
Horizontal grid : 0.25° global Temporal resolution : 1-hourly for all variables except sst and siconc which are daily
ERA5 (Hersbach et al., 2019) est la dernière version des réanalyses de ECMWF. Plusieurs sources d’informations sont assimillées dans le cadre de la réanalyse ERA5 comme les observations de stations de surface, les observations satellitaires, les METAR, etc. Les données ont été téléchargés à partir du Climate Data Store de Copernicus (C3S, 2017). L'extension 1950-1978 est considérée comme étant préliminaire dû à un problème avec la vitesse des vents dans les cyclones tropicaux. L'utilisation de ces données pour l'étude des cyclones tropicaux n'est donc pas appropriée.
2-D fields (NetCDF only)
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daily
Invariant fields (NetCDF only)
Some invariant fields are dowloaded by user request. You can find a list of those downloaded fields below :
| lsm | Land-sea mask [0-1] |
| z | Surface geopotential [m2 s-2] |
Location:
UQAM:
NetCDF format: ~archive/REANALYSES/ERA5/Invariant_fields
SST & sea ice fraction (RPN only)
Even though these fields are available 1-hourly, they change over ocean only once a day between 22Z and 23Z. Therefore we only have these fields once per day at 12Z.
| TM | sea surface temperature [°K] |
| GL | sea ice fraction [0-1] |
Note: Units are given for RPN format. For units in NetCDF format check inside files!
Location:
UQAM:
RPN format : ~data/ReAnalysis/ERA5/SST_SeaIce
Beluga:
RPN format : ~winger/projects/rrg-laprise/GEM_Data/SST_SeaIce_degK/ERA5
3-D fields (RPN only)
1-hourly from 1979 to current. We keep adding recent months upon request.
The following fields are available on these pressure levels:
1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 700, 650, 600, 550, 500,
450, 400, 350, 300, 250, 225, 200, 175, 150, 125, 100, 70, 50, 30, 20, 10, 7, 5, 3, 2, 1
| TT | air temperature [°C] |
| HU | specific humidity [0-1] |
| GZ | geopotential [dm] |
| UU | u-wind [knots] |
| VV | v-wind [knots] |
Note: Units are given for RPN format. For units in NetCDF format check inside files!
Location:
UQAM:
RPN format : ~data/ReAnalysis/ERA5/Pilots
Beluga:
RPN format : ~/projects/rrg-laprise/GEM_Data/Driving_data/ERA5
Storm tracking fields (RPN only)
Fields that can get used for storm tracking.
| PN | sea level pressure [hPa] |
| PNS | smoothed sea level pressure [hPa] |
| VORT | relative vorticity at 850 hPa [1/s] |
| VORS | smoothed relative vorticity at 850 hPa [1/s] |
| UGEO | geostrophic u-wind at 500 hPa [m/s] |
| VGEO | geostrophic v-wind at 500 hPa [m/s] |
| UU | 10m u-wind [knots] |
| VV | 10m v-wind [knots] |
Location:
UQAM: ~data/ReAnalysis/ERA5/Stormfields
ERA5.1
Period : 200001 to 200612
Horizontal grid : 0.25° global B grid (CMC/RPN) Temporal resolution : 1-hourly or daily (for SST/SIC)
ERA5 (Hersbach et al., 2019) est la dernière version des réanalyses de ECMWF. Plusieurs sources d’informations sont assimillées dans le cadre de la réanalyse ERA5 comme les observations de stations de surface, les observations satellitaires, les METAR, etc. Les données ont été téléchargés à partir du Climate Data Store de Copernicus (C3S, 2017). Une correction a été faites par ECMWF pour les années 2000 à 2006 dû à un biais froid dans la stratosphère. Voir https://www.ecmwf.int/en/elibrary/81149-global-stratospheric-temperature-bias-and-other-stratospheric-aspects-era5-and
3-D fields (RPN only)
1-hourly from 1979 to current. We keep adding recent months upon request.
The following fields are available on these pressure levels:
1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 700, 650, 600, 550, 500,
450, 400, 350, 300, 250, 225, 200, 175, 150, 125, 100, 70, 50, 30, 20, 10, 7, 5, 3, 2, 1
| TT | air temperature [°C] |
| HU | specific humidity [0-1] |
| GZ | geopotential [dm] |
| UU | u-wind [knots] |
| VV | v-wind [knots] |
Note: Units are given for RPN format. For units in NetCDF format check inside files!
Location:
UQAM:
RPN format : ~data/Driving_data/ERA5/ERA5.1
Beluga:
RPN format : ~/projects/rrg-adl561/GEM_Data/Driving_data/ERA5.1
SST & sea ice fraction (RPN only)
Even though these fields are available 1-hourly, they change over ocean only once a day between 22Z and 23Z. Therefore we only have these fields once per day at 12Z.
| TM | sea surface temperature [°K] |
| GL | sea ice fraction [0-1] |
Note: Units are given for RPN format. For units in NetCDF format check inside files!
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Location:
UQAM:
NetCDF RPN format : ~archive/REANALYSES/ERA5_prel_back_extension ~data/SST_SeaIce_degK/ERA5.1
Beluga:
RPN format : ~winger/projects/rrg-adl561/GEM_Data/SST_SeaIce_degK/ERA5.1
ERA5-Land
ERA5-Land (Muñoz Sabater, 2019) est une simulation hors-ligne du modèle de surface à 0.1° qui est forcé par les réanalyses ERA5. Il n’y a pas d’assimilation de données. Toutefois, les observations atmosphériques s’y retrouvent indirectement via le forçage. Ces données peuvent être très utiles dans des endroits où il y a peu d’observations au niveau de la surface. Les données ont été téléchargés à partir du Climate Data Store de Copernicus (C3S, 2019)Store de Copernicus (C3S, 2019). En date du 19 avril 2024, les données jusqu'en 202312 sont issues de la version finale de ERA5-Landé
Period : 198101195001-202106202312
Spacial coverage : global
Spacial resolution : 0.1°
Temporal resolution : 1-hourly
2-D fields (NetCDF only)
| t2m | 2 metre temperature [K] | 1-hourly | forecast | ||
| d2m | 2 metre dewpoint temperature [K] | 1-hourly | forecast | ||
| tp | Total precipitation1 [m] | 1-hourly | forecast | ||
| tp_deaccum | Deaccumulated total precipitation2 [mm] | 1-hourly | forecast | ||
| u10 | 10 metre U wind component [m/s] | 1-hourly | forecast | ||
| v10 | 10 metre V wind component [m/s] | 1-hourly | forecast | ||
| e | EvaporationEvaporation3 [m of water equivalent] | 1-hourly | forecast | ||
| e_deaccum | Deaccumulated | evaporationevaporation4 [mm] | 31-hourly | forecast | |
| sd | Snow depth (snow water equivalent) [m of water equivalent] | 1-hourly | analysis | analysis | |
| sde | Snow depth (physical snow depth) [m] | 1-hourly | forecast | ||
| skt | Skin temperature [K] | 1-hourly | analysis | ||
| ssrd | Surface solar radiation downwards5 [J m-2] | 1-hourly | forecast | ||
| ssrd_deaccum | Deaccumulated surface solar radiation downwards6 [W m-2 | sde | Snow depth (physical snow depth) [m] | 1-hourly | forecast |
| skt | Skin temperature [K] | 1-hourly | analysis |
1tp is the total precipitation download directly from ERA5-Land which accumulate daily up to 00Z. tp at 00Z is then the total accumulation for the previous day.
2tp_deaccum is the deaccumulated total precipitation which was locally computed. The output of tp_deaccum at hZ is then the accumulated precipitation from ]h-1,h].
3e is the evaporation 1tp is the total precipitation download directly from ERA5-Land which accumulate daily up to 00Z. tp at 00Z is then the total accumulation for the previous day.
2tp4e_deaccum is the deaccumulated total precipitation evaporation which was locally computed. The output of tpe_deaccum at hZ is then the accumulated precipitation evaporation from ]h-1,h],h].
5ssrd is the surface solar radiation downwards download directly from ERA5-Land which accumulate daily up to 00Z. tp at 00Z is then the total accumulation for the previous day.
6ssrd3e_deaccum is the deaccumulated evaporation surface solar radiation downwards which was locally computed. The output of e_deaccum at hZ is then the accumulated evaporation from ]h-1,h].
Location:
UQAM:
NetCDF format: ~archive/REANALYSES/ERA5-Land
Invariant fields (NetCDF only)
Some invariant fields are dowloaded by user request. You can find a list of those downloaded fields below :
| lsm | Land-sea mask [0-1] |
| z | Surface geopotential [m2 s-2] |
| cl | Lake cover [0-1] |
AMMA
Period : 200605 - 200609
Horizontal grid : Atlantic Africa area, 0.5x0.5deg
Data source : http://bddamma.ipsl.polytechnique.fr/ecmwf-amma-re-analysis-2.html
Location : ~data/Validation/AMMA
Data policy: http://bddamma.ipsl.polytechnique.fr/data-policy.html
Before using these data please read the CONDITIONS OF USE
2-D fields:
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