20CRv3
From variable 3.7
Summary of observation-based historical datasets with specific and/or relative humidity available
- reference Compo et al. (2011)
- source
- CIRES; NOAA; DOE
- data type
- Global atmospheric reanalysis
- spatial domain
- Global
- spatial resolution
- T254 (approximately 75 km at the equator)
- temporal coverage
- 20CRv3.SI is available for years 1836-1980 and 20CRv3.MO is available for years 1981-2015
- time step
- 3h; Daily; Monthly
- data format
- NetCDF
- comments
- Assimilates only surface observations of synoptic pressure and boundary conditions of pentad sea surface temperature and monthly sea ice concentration and time-varying solar, volcanic, and carbon dioxide radiative forcings are prescribed. Provides 2 m specific humidity and 2 m relative humidity.