EMTRIES FOR SUBSURFACE OBSERVATIONS (DETAIL CARD) 



(See Appendix f, page 105, for aampU Physical and Chemical Data Form.) 



COLUMNS 1-24 IDENTIFICATION ENTRIES 



These columns are identical to the Master Card and need not be filled in. 

 The information is automatically reproduced in the Observed Detail Card 

 from the Master Card. 



COLUMNS 25 - 27 MESSENGER TIME 



Enter hour and tenths of hour in GMT at time of release of messenger 

 applicable to the observational level. Table 2 converts minutes to 

 tenths of an hour. The time entry also serves to distinguish multiple 

 casts at one station. If a single cast constitutes the station, the 

 messenger time need be entered only at the shallowest (O-raeter) level. 



COLUMNS 28 - 32 DEPTH OF SAMPLE 



Enter depth of a sample in meters in Columns 28 - 31 • Column 32 may be 

 used to enter tenths of a meter, if desired, or the alphabetic precision 

 indicator (see general instructions). To indicate thermometrically 

 determined depths place a cross (t ) in Column 32. The entries in the 

 depth field should be corrected depths only. Standard depths are 

 normally interpolated by the computer and need not be entered on the 

 data form. 



If interpolated standard depths are entered, leave messenger time blank and insert a 7 in Column 80. 



COLUMNS 33 - 37 TEMPERATURE 



Enter temperature in "C to hundredths in Columns 33-3^; Column 37 is 

 for an additional decimal or precision indicator coded according to 

 Table 29« To Indicate a negative temperature, place a prominent minus 

 sign in red before the nimieral entry in Column 33- (Column 33 has 

 extra width for this purpose.) 



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