SKCT. 2] 



Fig 



LARGE-SCALE INTERACTIONS 



277 



86 {on facing page). Atmospheric flow patterns and their departures from seasonal 

 normal for fall, 1957. (After Namias, 1959, Fig. 9.) 



( a) Solid lines are contours of 700-mb pressure surface in tens of ft. Dashed lines are 

 departures from seasonal normal in tens of ft. 



(b) Solid lines are isobars of surface pressure in mb above 1000 mb. Dashed lines 

 are departures from seasonal normal ; anomaly centers labelled in mb. 



(a) 



(b) 



Fig. 87. Computation and result of sea-surface temperature-anomaly pattern resultmg 

 from advection by abnormal wind drag on normal surface water. (After Namias, 1959, 

 Figs. 13 and 14.) 



(a) Anomalous surface-water displacements (arrows) computed from mean seasonal 

 sea-level pressure anomalies for fall, 1957. Isotherms (solid lines) show normal sea- 

 surface temperatures (°F) for October. 



(b) Computed sea-surface temperature anomalies (°F) for fall, 1957, using advective 

 method described in (a) and text. Shaded area represent above-normal temperatures. 

 Compare with Fig. 85. 



