no. 3 



RADIATION OF THE ATMOSPHERE ANGSTROM 



145 



The records obtained in the balloon ascensions are given in tabular form in 

 table 13. Figures 13 and 14 show the temperature and absolute humidity 

 gradients, respectively. There was always a marked inversion of tempera- 

 ture between the surface and 200 meters above it, amounting on the average 

 to 6° C. (See table 14.) From 200 to 300 meters there was practically no 

 change, but above 300 meters the temperature decreased with altitude at a 



Fig. 14. — Absolute humidity gradients, grams per cubic meter, above Lone Pine, 

 Cal., August 1, 2, and 3, 1914. 



Table 14. — Temperature differences at 100-meter intervals above Lone Pine, 

 Cal., August 1-4, 1913 



Altitude (meters) 



fairly uniform rate, the mean difference per 100 meters being 0.73. On 

 August 2 there was about equal cooling with time at all levels ; on the 4th 

 the temperature changed but little at upper levels and increased somewhat at 

 the surface. 



The absolute humidity (fig. 14) diminished rapidly from the surface to the 

 altitude at which the highest temperature was recorded. Above this, on 

 August 2, the only night in which a record of humidity at higher levels was 

 obtained, it diminished slowly. 



