224 



PRESSURE, WINDS AND WEATHER. 



(«) {b) 



Fig. 68. Modified pressure distribution. = 135°. 



e = 135°, figure 68.— D^^'ing the interval the pressure distribution has undergone an 

 important change, the lowest pressure is now over the south-east corner of the Ross Sea near 

 to Framheim. There is still an appreciable gradient for south-west winds over the east of the 

 Ross Sea and the pressure decreases from north to south along the Western Mountains so 

 that the west of the Barrier has a lower pressure than the west of the Ross Sea. Northerly 

 winds will therefore continue near the mountains. The pressure is now nearly uniform over 

 the Barrier where there can be little or no air movement. 



