418 Table 132 



TOTAL DAILY SOLAR RADIATION AT THE TOP OF THE ATMOSPHERE 



(Explanation on p. 417.) 

 The solar constant /o is assumed to be 1.94 cal. cm."' min. -1 Values apply to a horizontal surface. 



Longitude of the sun 

 0° 22J° 45° 67^° 90° 112*/ 135° 157*° 180° 202*° 225° 247*/ 270° 292*° 315° 337*° 



Approximate date 

 Mar. Apr. May May June July Aug. Aug. Sept. Oct. Nov. Nov. Dec. Jan. Feb. Feb. 

 21 13 6 29 22 15 8 31 23 16 8 30 22 13 4 26 



Lati- 

 tude 



90° 

 80 



70 

 60 

 50 



40 

 30 

 20 

 10 

 



-10 

 -20 

 -30 

 -40 

 -50 



cal. cm. -2 



423 772 999 1077 994 765 418 



155 423 760 984 1060 980 754 418 153 7 



307 525 749 939 1012 934 742 519 303 129 24 



447 635 809 934 979 929 801 629 442 273 146 



575 732 867 958 989 954 859 725 568 414 286 



686 807 910 972 



775 865 929 967 



841 894 923 935 



882 897 893 881 



895 873 837 804 



882 824 760 707 



841 750 660 593 



775 654 543 465 



686 538 413 329 



575 408 276 193 



991 967 901 798 677 545 429 



975 960 921 856 765 663 564 



935 930 916 884 831 760 685 



873 877 886 887 871 835 789 



790 800 830 863 885 886 870 



687 704 753 814 871 910 927 



567 590 654 741 831 907 959 



436 463 538 646 765 877 964 1020 1041 1025 973 888 



297 328 409 533 677 819 944 1027 1059 1032 953 828 



165 192 274 404 568 743 901 1014 1056 1018 909 752 



-60 447 269 140 



-70 307 127 23 



-80 155 7 

 -90 



68 47 68 139 266 442 644 840 987 1046 992 847 652 



23 126 303 532 778 993 1081 998 785 539 



7 153 429 790 1041 1132 1046 796 434 



429 801 1056 1149 1062 809 434 



Table 1 33 



TOTAL ANNUAL AND SEASONAL SOLAR RADIATION AT THE TOP 

 OF THE ATMOSPHERE 



(Explanation on p. 417.) 



The solar constant Jo is assumed to be 1.94 cal. cm." 2 min. -1 Values apply to a 



horizontal surface. 



SMITHSONIAN METEOROLOGICAL TABLES 



