RADIO METEOROLOGY 



211 



IN MB PER 100 METERS 



Figure 27. Temperature and humidity gradients. 



found from meteorological tables when relative 

 humidity and temperature are known.) The ordinate 

 is the rate of increase of temperature with height 

 (dT/dh) . The slanting lines represent various values of 

 temperature and relative humidity at some particular 

 height h. The lines passing through the same point 

 at the upper right of the diagram correspond to the 



same mean temperature; lines of different slopes 

 represent different mean relative humidities. 



In order to determine the rate of change of M at 

 a given level, find the point in the diagram corre- 

 sponding to the actual rates of change of moisture 

 and temperature. Also pick out the straight line 

 representing the actual mean values of temperature 



