positional codes) which require more than 3 columns to record, use the 

 additional columns in the Special Observations field. Columns 68-72. 

 In this case, put a red dash in Column 68. 



COLUMNS 3^ - 37 DEPTH TO BOTTOM 



Enter corrected or uncorrected soundings (as determined at the location 

 given in Columns 5-15) in meters. For corrected soundings, put a red 

 dash in Column 37- Table 5 converts fathoms to meters; Table 6 converts 

 feet to meters. Although Table 6 is given to tenths of a meter for 

 added accuracy in recording observed depths in the detail card, depth 

 to bottom, Columns 3^-37^ is rounded to the nearest whole meter. 



COLUMNS 38 - 39 MAXIMUM SAMPLE DEPTH 



Enter the depth of the deepest sample (temperature or salinity or both) 

 to the nearest hundred-meter interval. Round as follows: O-5O = 00, 

 51-150 = 01, 151-250 = 02, etc. 



COLUMNS kO - kl ADDITIONAL OBSERVATIONS CODE 



A two digit code to indicate various kinds of additional data collected 

 at the station but not recorded on the Ma,ster or Detail Card is to be 

 entered in this space. The code currently is under development; when 

 completed it will be issued as Table J. 



COLUMNS 42 - if 5 WATER COLOR AND TRANSPARENCY 



Enter water color in Columns k2 and ^3 according to the Forel-Ule scale. 

 Table 8 shows the Forel-Ule scale and conversions from other color scales. 

 Enter transparency values in whole meters in Columns hk and k'^ obtained 

 by using a white, 30 cm. Secchi disc. 



