Climate Forecast System (CFS) Reanalysis is a fully coupled model which incorporates interactions between the Earth’s atmosphere, oceans, land and sea ice (Saha et al., 2010). There exist two versions of this model, version 1 (Saha et al., 2006; Saha et al., 2010) and version 2 (Saha et al., 2014). CFS version 1 began use in August 2004 and CFS version 2 began use in March 2011. CFS provides various primary and derived climate variables.
Max Temperature: Max Daily air temperature at 2m
Min Temperature: Min Daily air temperature at 2m
Mean Temperature: Mean Daily air temperature at 2m
Potential Evaporation: At surface potential evaporation (depth)
Precipitation: Daily Precipitation total (depth)
Specific Humidity: The ratio of the mass of water vapor to the total mass of air for a unit volume (kg/kg)
Max Specific Humidity: The ratio of the mass of water vapor to the total mass of air for a unit volume (kg/kg)
Min Specific Humidity:The ratio of the mass of water vapor to the total mass of air for a unit volume (kg/kg)
Soil Moisture: Volumetric water content (volume of water/volume of soil). Available at 5cm, 25cm, 70cm, or 150cm depths.
Wind: Daily mean horizontal wind speed at 10m height. Available for the northern wind component (v) or the eatsern wind component (u).
Radiation: At surface daily mean radiation (W/m^2). Available for upward shortwave, upward longwave, downward shortwave, downward longwave, and net radiation.
Latent Heat Flux: Component of available energy used for evapotranspiration (W/m^2)
Sensible Heat Flux: Component of available energy used for changing surface temperature (W/m^2)
Period of Record
Saha, Suranjana, and Coauthors, 2010: The NCEP Climate Forecast System Reanalysis. Bull. Amer. Meteor. Soc., 91, 1015.1057. doi: 10.1175/2010BAMS3001.1
Saha, S., Nadiga, S., Thiaw, C., Wang, J., Wang, W., Zhang, Q., … & Stokes, D. (2006). The NCEP climate forecast system. Journal of Climate, 19(15), 3483-3517.
Saha, S., Moorthi, S., Wu, X., Wang, J., Nadiga, S., Tripp, P., … & Ek, M. (2014). The NCEP climate forecast system version 2. Journal of climate, 27(6), 2185-2208.
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