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 depth. The analyses will be built dovnivra.rd from the surface (where the 



most reports are available) . 



The previous day's analysis will first be modified by mechanical and 

 convective mixing, where applicable, and large-scale convergence and 

 divergence in the surface layers. Climatological (hydroclime) restraints 

 will be used to keep computed changes within reasonable limits . Finally, BT 

 observations will be introduced by means of a median seeking technique such as 

 used in the SST analysis program. 



Most of the components needed to assemble the complete subsurface 

 analysis and prediction package have been programmed for numerical solution. 

 The first major portion to be completed is expected to be a hemispheric 

 analysis and prediction of mixed- layer depth. 



