APPENDIX I 

 Monthly Surface Heat Flux Distributions 



Long-term composite monthly mean surface heat flux distributions are displayed in Charts 1-60. Charts 1-12 are the monthly values of 

 incident solar radiation corrected for cloud cover and reflection. Charts 13-24 the monthly effective back radiation, Charts 25-36 the monthly 

 latent heat flux. Charts 37-48 the monthly sensible heat flux, and Charts 49-60 the monthly net heat exchange across the sea surface. Values 

 are plotted in units of watts per square meter. The distributions are contoured with a contour interval of 25 W/m 2 , except in Charts 13-24 and 

 Charts 37-48 where a contour interval of 10 W/m- has been used. Positive values denote oceanic heat gain in Charts 1-12 and Charts 49-60 

 and oceanic heat loss in Charts 13-48. Negative values are shaded and indicate heat transfer from atmosphere to ocean in Charts 37-48 and 

 heat loss from ocean to atmosphere in Charts 49-60. 



The month is indicated in the figure legend in the upper right cornerof the charts. The long-term mean monthly values were computed for 

 the approximate time period 1 92 1 to 1 972 . Scattered reports were available between 1 92 1 and 1 940 but the bulk of the data was collected after 

 1945. The coastline configuration is superimposed on the grid as a visual aid and does not represent a conformal mapping. 



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