Table A. (Concluded. 



File format 



Key names 



Variable names 



SPECS Load/Sort File 



-- Phys/Chem (Date is Year/ 

 Month Only) 



SPECS CALC Output File 



AREA 



YRMON 



STATION 



TOD 



DEPTHCODE 



AREA 



DATE (YYMMDD) 



STATION 



TOD 



large data base will only be read once. The SLECT command can then be used to 

 create smaller load/sort files, which contain the data for specific analyses. 

 When these smaller files are input to MATRIX, GENERATE will only have to read 

 in relevant data points and the collapse specifications will be easy to enter. 



Currently, all SPECS commands have been placed within the MATRIX operating 

 system, and the SPECS system has been reduced to a data access system. 



143 



