20CRv3

From variable 3.7
Summary of observation-based historical datasets with specific and/or relative humidity available
reference

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.