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CERA-20C
CERA-20C (Laloyaux et al., 2016) est une réanalyse couplée produite par ECMWF couvrant le 20e siècle (1901-2010). Elle est basée sur le système d'assimilation CERA qui assimile seulement les observations de pressions de surface et de vents de surface sur l'océan ainsi que les profils de salinités et de température de l'océan. Bien qu'étant une analyse ensembliste à la base, seul le membre contrôle est disponible dans la présente base de données.
Period : 190101 - 201012
Horizontal grid : 288x145 (1.25 deg) Global Lat/lon
Vertical info : 37 pressure levels from 1 hPa to 1000 hPa
Data source : https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/cera-20c
Documentation : httpsPeriod : 190101 - 201012
Horizontal grid : 288x145 (1.25 deg) Global LL
Vertical info : 37 pressure levels from 1 hPa to 1000 hPa
Data source : https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/cera-20c
Documentation : https://www.ecmwf.int/en/newsletter/150/meteorology/cera-20c-earth-system-approach-climate-reanalysis
All files are in netcdf4 format.
3D Fields (3-hourly)
| GZ | Geopotential [m**2 s**-2] | 3-hourly | analysis |
| HR | Relative humidity [%] | 3-hourly | analysis |
| TT | Temperature [K] | 3-hourly | analysis |
| UU | U component of wind [m s**-1] | 3-hourly | analysis |
| VV | U component of wind [m s**-1] | 3-hourly | analysis |
Location : ~archive/REANALYSES/cera20c/3h
2D Fields (3-hourly)
| MSLP | Mean sea level pressure [Pa] |
| 3-hourly |
| analysis | |||
| SIC | Sea-ice cover [0-1] | 3-hourly | analysis |
| SST | Sea surface temperature [K] | 3-hourly | analysis |
| TAS | 2 metre temperature [K] | 3-hourly | analysis |
Location : ~archive/REANALYSES/cera20c/3h
2D Fields (daily)
| MSLP | Mean sea level pressure [Pa] | daily | analysis |
| PR | Total precipitation [m] | daily | forecast |
| SIC | Sea-ice cover [0-1] | daily | analysis |
| SST | Sea surface temperature [K] | daily | analysis |
| SUND | Sunshine duration [s] | daily | analysis |
| TAS | 2 metre temperature [K] | daily | analysis |
Location : ~archive/REANALYSES/cera20c/daily
...
Location : ~data/Driving_data/Offline/ERA-Interim_0.75/3h_Forecast
Data source : http://apps.ecmwf.int/datasets
3-hourly forecast, 2-D NetCDF (only year 2019 for now)
| NAME | DESCRIPTION | UNIT |
|---|---|---|
| tp | Total precipitation | m |
Location : ~archive/REANALYSES/ERA-Interim/3h
Data source : http://apps.ecmwf.int/datasets
2-D monthly mean fields
Period monthly mean fieldsPeriod : 197901 - 201412
Horizontal grid : 481x241 (0.75 deg) B grid (CMC/RPN)
Data source : http://apps.ecmwf.int/datasets/data/interim-full-moda/
...
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 |
| ES 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 Convective available potential 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 |
...
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 04-03-2021 01 October 2024 all months in the database from 202101 up to 202102 are considered ERA5T.Please note that 202405 were downloaded and are the final version of ERA5.
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.
...
- 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 | ||
| cp | Convective precipitation [m] | 1-hourly | forecast | ||
| tp | Total precipitation [m] | 1-hourly | forecast | ||
| u10 | 10 metre U wind component [m/s] | 1-hourly | analysis | ||
| v10 d2m | 10 metre V wind component [m/s2 metre dewpoint temperature [K] | 1-hourly | analysis | ||
| q2m | 2 metre specific humidity1 [kg/kg | e | Evaporation [m of water equivalent] | 1-hourly | forecast analysis |
| r2m | 2 metre relative humidity2 [% | rsn | Snow density [kg m**-3] | 1-hourly | analysis |
| sd cape | Snow depth (snow water equivalent) [m of water equivalentConvective available potential energy [J kg**-1] | 1-hourly | analysis | ||
| sf cp | Snowfall Convective precipitation [m of water equivalent] | 1-hourly | forecast | ||
| skt tp | Skin temperature Total precipitation [Km] | 1-hourly | analysis forecast | ||
| msl ptype | Mean sea level pressure [PaPrecipitation type [dimensionless] | 1-hourly | analysis forecast | ||
| sp u10 | Surface pressure [Pa10 metre U wind component [m/s] | 1-hourly | analysis | ||
| ro v10 | Runoff 10 metre V wind component [m/s] | 1-hourly | forecast analysis | ||
| sro i10fg | Surface runoff Instantaneous 10 metre wind gust [m/s] | 1-hourly | forecast | ||
| fg10 | Maximum 10m wind gust since previous post-processing[m/s | ssro | Sub-surface runoff [m] | 1-hourly | forecast |
| slhf e | Surface latent heat flux Evaporation [J m**-2m of water equivalent] | 1-hourly | forecast | ||
| sshf rsn | Surface sensible heat flux [J Snow density [kg m**-23] | 1-hourly | forecast analysis | ||
| ssr sd | Snow depth (snow water equivalent) [m of water equivalent] | 1-hourly | analysis | ||
| sf | Snowfall [m of water equivalentSurface net solar radiation [J m**-2] | 1-hourly | forecast | ||
| str smelt | Surface net thermal radiation Snowmelt [J m**-2m of water equivalent] | 1-hourly | forecast | ||
| cape skt | Convective available potential energy [J kg**-1Skin temperature [K] | 1-hourly | analysis | ||
| tcwv stl1 | Total column water vapour [kg m**-2Soil temperature level 1 [K] | 1-hourly | analysis | ||
| z stl2 | Geopotential at 500 hPa (z_500) [m2/s2Soil temperature level 2 [K] | 1-hourly | analysis | ||
| sst msl | Sea surface temperature [K]Mean sea level pressure [Pa] | 1-hourly daily | analysis | ||
| siconc sp | Sea ice area fraction [%Surface pressure [Pa] | daily 1-hourly | analysis |
...
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.
...
| 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 |
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:
NetCDF format: ~archive/REANALYSES/ERA5/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, 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
...
Note: Units are given for RPN format. For units in NetCDF format check inside files!
Location:
UQAM:
RPN format : ~data/ReAnalysis/ERA5/Pilots:
BelugaUQAM:
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)
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:
RPN format : ~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). En date du 19 avril 2024, les données jusqu'en 202312 sont issues de la version finale de ERA5-Landé
Period : 195001-202312
Spacial coverage : global
Spacial resolution : 0.1°
Temporal resolution : 1-hourly
2-D fields (NetCDF only)
| t2m | 2 metre temperature [K | ||||
| t2m | 2 metre temperature [K] | 1-hourly | analysis | ||
| d2m | 2 metre dewpoint temperature [K] | 1-hourly | analysis | ||
| cp | Convective precipitation [m] | 1-hourly | forecast | ||
| tp | Total precipitation [m] | 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 | ||
| msl | Mean sea level pressure [Pa] | 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 | ||
| skt | Skin temperature [K] | 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 d2m | Surface sensible heat flux [J m**-22 metre dewpoint temperature [K] | 1-hourly | forecast | ||
| ssr tp | Surface net solar radiation [J m**-2Total precipitation1 [m] | 1-hourly | forecast | ||
| tp_deaccum | Deaccumulated total precipitation2 [mm | str | Surface net thermal radiation [J m**-2] | 1-hourly | forecast |
| cape u10 | Convective available potential energy [J kg**-110 metre U wind component [m/s] | 1-hourly | analysis forecast | ||
| z v10 | Geopotential at 500 hPa (z_500) [m2/s210 metre V wind component [m/s] | 1-hourly | analysis forecast | ||
| sst e | Evaporation3 Sea surface temperature [K[m of water equivalent] | daily 1-hourly | analysis forecast | ||
| siconc | Sea ice area fraction [%] | daily | analysis |
...
| e_deaccum | Deaccumulated evaporation4 [mm] | 1-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 | forecast |
| ssrd_deaccum | Deaccumulated surface solar radiation downwards6 [W m-2 |
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)
Period : 198101-202011
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 precipitation [m] | 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 |
| 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 |
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 download directly from ERA5-Land which accumulate daily up to 00Z. tp at 00Z is then the total accumulation for the previous day.
4e_deaccum is the deaccumulated evaporation which was locally computed. The output of e_deaccum at hZ is then the accumulated 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.
6ssrd_deaccum is the deaccumulated 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:
...