Appendix Table B-2. — Values by month and by latitude of the percent of incoming 

 solar radiation that is reflected. [Adapted from Budyko, 1956.] 



JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 



55N .190 .150 .105 .077 .077 .067 .077 .085 .095 .132 .177 .197 



50N .170 .130 .095 .072 .072 .062 .072 .075 .085 .117 .152 .172 



45N .147 .112 .087 .067 .067 ,060 .067 .067 .077 .102 .132 .150 



40N .122 .097 .082 .062 .062 .060 .062 .062 .072 .087 .117 .130 



35N .105 .087 .077 .060 .060 .060 .060 .060 .067 .077 .102 .112 



30N .095 .082 .072 .060 .060 .060 .060 .060 .062 .072 .087 .097 



25N *085 .077 .067 .060 .060 .060 .060 .060 .060 .067 .077 .085 



20N »075 .072 .062 .060 .060 .060 .060 .060 .060 .062 .072 .075 



15N «067 .067 .060 .060 .060 .060 .060 .060 .060 .060 .067 .070 



ION «062 .062 .060 .060 .060 .060 .060 .060 .060 .060 .062 .070 



5N .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .067 



ON «060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .062 



OS .060 .060 .060 .060 .060 .062 .060 .060 .060 .060 .060 .060 



5S .060 .060 .060 .060 .060 .067 .060 .060 .060 .060 .060 .060 



10S .060 .060 .060 .060 .062 .070 .062 .062 .060 .060 .060 .060 



15S .060 .060 .060 .060 .067 .070 .067 ,067 .060 .060 .060 .060 



20S .060 .060 .060 .062 .072 .075 .075 .072 .062 .060 .060 .060 



25S .060 .060 .060 .067 .077 .085 .085 .077 .067 .060 .060 .060 



30S .060 .060 .062 .072 .087 .097 ,095 .082 .072 .060 .060 .060 



35S .060 .060 .067 .077 .102 .112 ,105 .087 .077 .060 .060 .060 



40S .062 .062 .072 .087 .117 .130 .122 .097 .082 .062 .062 .060 



45S .067 .067 .077 .102 .132 .150 .1*7 ,112 ,087 .067 .067 .060 



50S .072 .075 .085 .117 .152 .172 .170 .130 .095 .072 .072 .062 



55 S .077 .085 .095 .132 .177 .197 ,190 ,150 ,105 .077 .077 .067 



66 



