資料庫

Brief Description:

ERA-20C was produced with IFS version Cy38r1 and the same surface and atmospheric forcings as the final version of the atmospheric model integration ERA-20CM. A coupled Atmosphere/Land-surface/Ocean-waves model is used to reanalyse the weather, by assimilating surface observations. The ERA-20C products describe the spatio-temporal evolution of the atmosphere (on 91 vertical levels, between the surface and 0.01 hPa), the land-surface (on 4 soil layers), and the ocean waves (on 25 frequencies and 12 directions).

The horizontal resolution is approximately 125 km (spectral truncation T159). Note, atmospheric data are not only available on the native 91 model levels, but also on 37 pressure levels (as inERA-Interim), 16 potential temperature levels, and the 2 PVU potential vorticity level.

Temporal Coverage:

Monthly
ERA-20CM: Jan 1899 - Dec 2010

Spatial Coverage:

1° x 1° Global grids (232 x 360).
From -81.5°N to 89.5°N、-279.5°E to 79.5°E.

Levels:

Sea Surface
pressure level and single level files. 37 pressure levels (hPa):
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

Data Format:

NetCDF

 

20th

Data variable and Path:

SFC /archive/Reanalysis/ECMWF/20C/mon/SFC
PRF /archive/Reanalysis/ECMWF/20C/mon/PRF

Variable:

Surface 10 metre U wind component 10 metre V wind component 2 metre dewpoint temperature 2 metre temperature
Albedo Boundary layer height Cloud base height Convective precipitation
Eastward gravity wave surface stress Eastward turbulent surface stress Evaporation High cloud cover
Instantaneous moisture flux Large-scale precipitation Low cloud cover Mean sea level pressure
Medium cloud cover Northward turbulent surface stress Sea surface temperature Sea-ice cover
Skin temperature Surface latent heat flux Surface net solar radiation Surface net solar radiation, clear sky
Surface net thermal radiation Surface net thermal radiation, clear sky Surface pressure Surface sensible heat flux
Surface solar radiation downwards Surface thermal radiation downwards TOA incident solar radiation Top net solar radiation
Top net solar radiation, clear sky Top net thermal radiation Top net thermal radiation, clear sky Total cloud cover
Total column liquid water Total column rain water Total column water Total column water vapour
Total precipitation Total sky direct solar radiation at surface Vertical integral of divergence of moisture flux Vertically integrated moisture divergence
pressure Divergence Geopotential Relative humidity Specific humidity
Temperature U component of wind V component of wind Vertical velocity
Vorticitiy (relative)      

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