MEINARDUS'S THEORY. 



255 



be plotted with some certainty by aid of past observations. The drawing is planned to 

 present only the jrwbable form of the isobars, considering tbe observed sea-level winds. 

 H, high pressure ; L, low pressiu-e ; arrows, average wind direction.' 



This diagram then represents what the sea-level pressure would be if the existing sea-level 

 pressure could be extrapolated under the high continent which is supposed to cover two-thirds 

 of the area. The anticyclonic distribution is clearly slio\vn with the maximum of the high 

 pressure near to the South Pole. 



Figure 77 is a reproduction of Meinardus's remaining diagram, it is described as ' Sketch 

 of the isobars at the 4,000 metre level within the south Polar region. Arrows show the 





1^ °^"^- ^ 



Fio. 77. Meiiiaidus's diagram of Antarctic pressure, 4,U00 metres. 



average direction of the upper clouds and the prevailing winds on the plateau.' As stated 

 in the text, this diagram has been drawn by making the isobars run parallel to the winds 

 keeping the low pressure on the right of the air motion. The diagram is convincing and the 



