CDIAC Climate Holdings Containing Sunshine Duration Data

Data Set Name	Investigators	Data Type/Format	Period of Record
Historical Sunshine and Cloud Data in the United States (CDIAC NDP-021)	P.M. Steurer and T.R. Karl	Station data; monthly and annual sunshine duration (SD), max. possible SD, and percentage of possible SD	Varies by station; as long as 1891-1987
Two Long-Term Instrumental Climatic Data Bases of the People's Republic of China (CDIAC NDP-039)	S. Tao et al.	Station data; monthly sunshine duration	Varies by station; through 1993

08/2007