Instantaneous. values of solar radiation received on unit area of the 
sea surface in the absence of clouds. 
extreme values of water vanor content in the atmosohere likely to 
Values are given for the two 
occur commonly, namely 0.5 em and 5 em of precipitable water d/of-cnr , 
ee rn ee ee 
Solar altitude | O. Pome- ag Po Berea bang 
ae Oe em i oem (le Oe a tem le Laer 
7 90° Gee) see it BAS OF ar 78 
| BO ana) WeeOm | Ma tB 7s 95 "7 
i eo earn a 750 90 73 
| 30 aa Zo | 1980 | 1580 82 | 66 
| 50° yO | p20 | 1350 eu 56 
| Be ee? el og)" hoo 58 | 44 
| Bar) Wee, “toae amen 43 | 31 
| POR RIERA | 660 Be h429 2 en 18 
| 10° gb | 278 | 127 nae 
NUN ESRPENT SDN et ne Ora IRC USSR ONS « VOOM Me ae NGS sete 
Computed using 2800 cal en72 day~1 as the solar constant and the 
atmospheric transmissions given by Kimball (Fis. 
Review, Vol. 56, pp. 393-398, 1929). 
Te Gabon] weymein ein © 
“eal em-2 nour-L 
1 
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1, Monthly Weather 
