386 F. W. Very — Shy Radiation and Isothermal Layer. 



a 

 A 11-3 ft (R. S. deviation = 36°) 1 



TV - Ta 4 1 



\ 9-60 ft (R. S. deviation = 37°) 1 



1 7-42 fi( " " = 38°) 1 



TV - TV 1 



I 4*28 fi (R. S. deviation = 39°) _ . 1 



TV - TV 1 



a 0*98 fi (R. S. deviation = 40°) 1 



TV - TV 1 



The same thing may be shown from results at somewhat higher tempera- 

 tures obtained by Paschen (Astrophysical Journal, vol. x, p. 52, June, 1899), 

 from which I take radiation ratios for the temperature-excesses : 



a = 89-4° = T 2 - % = 462-4° - 373-0° abs. C. 

 b = 204-1 = 577-1 - 3730 



6 C = 3500 = 723-0 - 373-0 



b 



c 



2-7 



4-7 



2-7 



5-5 



3-2 



6-3 



2-9 



6-4 



3-1 



6-9 



4-2 



11-2 



4-0 



11-5 



8-7 



22*7 



6-1 



26-2 



A 7-783// 



T 9 2 - TV. 



A 6-263// 



TV - TV. 



A4-663// 



TV - TV. 



1 



1 



1 



1 



1 



1 



A3-355// 1 



TV 



73 



48 



76 



4-84 



6-32 



5-78 



If we compute homogeneous radiations by Wien's law for T 

 7000° abs. C, the ratios in the next table are obtained : 



2, = 



TV 

 l'Ofi. 



TV 



I = 0-8 fi. 

 TV 



TV 



A = 0-6^ 1 



TV - TV 1 



I = 0-5 fi 1 



TV -TV ---- 1 



2, = 0-4/*.__ 1 



b 

 1-73 

 1-72 



1-80 

 2-07 

 2-26 

 2-49 

 2-62 

 2-99 

 3-36 



c 



4-38 



5-13 



6-18 



9-63 

 11-14 

 19-79 

 27-99 

 29-07 



= 5000°, 6000 c 



2-74 

 2-42 

 2-76 

 3-84 

 4-00 

 5-38 

 5-17 

 7-53 

 8-05 



If we draw the curve of absolute temperature from the 

 highest point of observation up to an altitude of 80 km. and 

 compare it with the extension of the observed curve from 

 to 10 km., also continued to 80 km. as in iig. 1, the included 

 area above 10 km. has been nearly doubled (2'11 : 1*00), or the 

 heat stored in the. isothermal layer has been increased to some 

 such extent by the protective mechanism of the atmosphere. 



Altitude (km.) 







5 



10 



15 



20 



25 



30 



35 



40 



T (isothermal) 



T (by regular fall) . 



266 

 266 



241 

 241 



206 

 206 



198 

 179 



203 

 150 



212 

 125 



212 

 100 



210 



78 



200 

 55 



Difference 















19 



53 



87 



112 



132 



145 



