?9 1 28 127 126 125 124 123 122 121 120 119 116 117 116 115 114 113 112 

 l.aTB.93 



136 135 



133 132 131 130 129 126 127 126 125 124 123 122 



119 118 117 116 115 114 113 112 111 



Figure 7.— Spatial comparison of net heat exchange values for December, estimated from mean monthly surface meteorological properties, Q N (M), versus that com- 

 puted from individual reports, Q N (I). The nondimensional ratio Q N (M)/Q N (I) is plotted and contoured at intervals of 1.0. 



13 



