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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 04 November 2023 01 October 2024 all months up to 202308 202405 were downloaded and are the final version of ERA5.
Please note :
- msl, sd, tp and t2m , 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.
- 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 [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 [%] | 1-hourly | analysis |
| cape | Convective available potential energy [J kg**-1] | 1-hourly | analysis |
| cp | Convective precipitation [m] | 1-hourly | forecast |
| tp | Total precipitation [m] | 1-hourly | forecast |
| ptype | Precipitation type [dimensionless] | 1-hourly | forecast |
| u10 | 10 metre U wind component [m/s] | 1-hourly | analysis |
| v10 | 10 metre V wind component [m/s] | 1-hourly | analysis |
| i10fg | Instantaneous 10 metre wind gust [m/s] | 1-hourly | forecast |
| fg10 | Maximum 10m wind gust since previous post-processing[m/s] | 1-hourly | forecast |
| e | Evaporation [m of water equivalent] | 1-hourly | forecast |
| rsn | Snow density [kg m**-3] | 1-hourly | analysis |
| sd | Snow depth (snow water equivalent) [m of water equivalent] | 1-hourly | analysis |
| sf | Snowfall [m of water equivalent] | 1-hourly | forecast |
| smelt | Snowmelt [m of water equivalent] | 1-hourly | forecast |
| skt | Skin temperature [K] | 1-hourly | analysis |
| stl1 | Soil temperature level 1 [K] | 1-hourly | analysis |
| stl2 | Soil temperature level 2 [K] | 1-hourly | analysis |
| msl | Mean sea level pressure [Pa] | 1-hourly | analysis |
| sp | Surface pressure [Pa] | 1-hourly | analysis |
| ro | Runoff [m] | 1-hourly | forecast |
| sro | Surface runoff [m] | 1-hourly | forecast |
| ssro | Sub-surface runoff [m] | 1-hourly | forecast |
| slhf | Surface latent heat flux [J m**-2] | 1-hourly | forecast |
| sshf | Surface sensible heat flux [J m**-2] | 1-hourly | forecast |
| mslhf | Mean surface latent heat flux [W m**-2] | 1-hourly | forecast |
| msshf | Mean surface 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 |
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Location:
UQAM:
RPN format : ~data/ReAnalysis/ERA5/Pilots
Beluga:
RPN format : ~/projects/rrg-laprise/GEM_Data/Driving_data/ERA5
ERA5.1
Period : 200001 to 200612
Horizontal grid : 0.25° global B grid (CMC/RPN) Temporal resolution : 1-hourly or daily (for SST/SIC)
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 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
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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
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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
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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/SST_SeaIce_degK/ERA5.1
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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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, 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!
Location:
UQAM:
NetCDF RPN format : ~data/SST_SeaIce_degK/ERA5.1
Beluga:
RPN format : ~winger/projects/rrg-adl561/GEM_Data/SST_SeaIce_degK/ERA5.1 ~archive/REANALYSES/ERA5_prel_back_extension
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). En date du 4 mai 202319 avril 2024, les données >= 202302 sont issus jusqu'en 202312 sont issues de la version temporaire finale de ERA5-Land et seront remplacées.Landé
Period : 195001-202304202312
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 | ||
| 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 | analysis 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].
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
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