ERA-20C Project (ECMWF Atmospheric Reanalysis of the 20th Century) ...

• Main Author: European Centre For Medium-Range Weather Forecasts
• Format: Dataset
• Language: English
• Published: UCAR/NCAR - Research Data Archive 2014
• Subjects: EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vorticity; EARTH SCIENCE > Land Surface > Topography > Terrain Elevation; EARTH SCIENCE > Atmosphere > Altitude > Geopotential Height; EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Air Temperature; EARTH SCIENCE > Atmosphere > Atmospheric Winds > Upper Level Winds; EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Humidity; EARTH SCIENCE > Land Surface > Topography > Surface Roughness; EARTH SCIENCE > Biosphere > Vegetation > Vegetation Cover; EARTH SCIENCE > Biosphere > Vegetation > Vegetation Species; EARTH SCIENCE > Land Surface > Soils > Soil Classification; EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Surface Pressure; EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vertical Wind Motion; EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Precipitable Water; EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Water Vapor; EARTH SCIENCE > Atmosphere > Atmospheric Pressure > Sea Level Pressure; EARTH SCIENCE > Atmosphere > Atmospheric Winds > Convergence/Divergence; EARTH SCIENCE > Atmosphere > Altitude > Planetary Boundary Layer Height; EARTH SCIENCE > Atmosphere > Clouds > Cloud Amount/Frequency; EARTH SCIENCE > Atmosphere > Atmospheric Winds > Surface Winds; EARTH SCIENCE > Land Surface > Surface Radiative Properties > Albedo; EARTH SCIENCE > Land Surface > Soils > Soil Moisture/Water Content; EARTH SCIENCE > Atmosphere > Air Quality > Tropospheric Ozone; EARTH SCIENCE > Atmosphere > Clouds > Cloud Liquid Water/Ice; EARTH SCIENCE > Hydrosphere > Snow/Ice > Albedo; EARTH SCIENCE > Cryosphere > Snow/Ice > Snow/Ice Temperature; EARTH SCIENCE > Atmosphere > Atmospheric Winds > Convection; EARTH SCIENCE > Land Surface > Soils > Soil Temperature; EARTH SCIENCE > Hydrosphere > Snow/Ice > Snow Depth; EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Surface Air Temperature; EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Dew Point Temperature; EARTH SCIENCE > Atmosphere > Atmospheric Winds > Wind Stress; EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Heat Flux; EARTH SCIENCE > Land Surface > Land Temperature > Skin Temperature; EARTH SCIENCE > Hydrosphere > Snow/Ice > Snow/Ice Temperature; EARTH SCIENCE > Oceans > Sea Ice > Ice Extent; EARTH SCIENCE > Hydrosphere > Snow/Ice > Snow Density; EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature; Sea ice
• Online Access: https://dx.doi.org/10.5065/d6vq30qg; http://rda.ucar.edu/datasets/ds626.0/

ERA-20C is ECMWF's first atmospheric reanalysis of the 20th century, from 1900-2010. It assimilates observations of surface pressure and surface marine winds only. It is an outcome of the ERA-CLIM project. 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 and ocean wave model is used to reanalyze the weather, by assimilating surface observations. The ERA-20C products describe the spatial-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 that atmospheric data are not only available on the native 91 model levels, but also on 37 pressure levels (as in ERA-Interim), 16 potential temperature levels, and the 2 potential vorticity unit level. NCAR's Data ...