NO. 6 



SOLAR RADIATION AND WEATHER CLAYTON 



27 



In table 8 are given the mean maximum temperatures at Winnipeg 

 and New York for the interval from two days preceding to twelve 

 days following- observed high and low solar radiation values, between 

 July, 1918, and September, 1922, inclusive, for the winter and summer 

 half-years separately. At the bottom of this table is given the dif- 



Table 8. — Mean of the Daily Maximum of Temperature from Two Days Before to 12 

 Days Following Observed Solar-Radiation J'alne-, Temperature Means 

 Given in Degrees and Tenths Fahrenheit. 



ference between the mean temperatures with low solar radiation and 

 that with high solar radiation. These results are plotted for the 

 winter months in figure 19. It is seen from the table that at Winnipeg 

 and New York, it is warmer both in winter and in summer with low 

 solar radiation than with high solar radiation. The maximum difit'er- 

 ence in winter at Winnipeg is 11.5° F. This is a very large difference, 

 showing that even a moderate increase of solar radiation mav bring 



