Columns 3^-37 DEPTH TO BOTTOM 



Enter depth to tiottom (sounding) in whole meters (corrected or uncor- 

 rected). Table 5 converts fathoms to meters; Table 6 converts feet to meters. 

 Although Table 6 is given to tenths of a meter, values obtained from this 

 table should be rounded to the nearest whole meter. (When soundings are 

 greater than 9999 meters, enter the extra digit in Column 3^« ) 



Columns 38-39 MAXIMUM SAMPLE DEPTH 



Enter the depth of the deepest sample (temperature, salinity, or 

 chemical) to the nearest hundred-meter interval. Round as follows: 

 0-50 = 00, 51-150 = 01, 151-250 = 02, etc. 



Columns kO-kl NUMBER OF OBSERVED DEPTHS 



Enter the total number of observed sampled depths entered on the detailed 

 portion of the coding form. 



Columns 42-^5 WATER COLOR AND TRANSPARENCY 



Enter water color in Columns k2 and ^3 according to the code (based on 

 the Forel-Ule scale) given in Table 7. Additionally, Table 7 converts per- 

 cent yellow (based on Forel Scale) and percent brown to the proper code. 

 Enter transparency values obtained by using a standard white Secchi disc 

 in whole meters in Columns 4^1 and ^5« 



Columns h6-h9 WAVE DIRECTION, HEIGHT, AND PERIOD 



Enter the direction from which the dominant waves come in Columns k6 

 and 1+7 according to the code shown in Table 8, (if wave height is 16 feet 

 or greater, 50 must be added to the code value of direction. ) Enter the 

 height of the dominant waves in Column k8 according to WMO Code 1555 shown 

 in Table 10 and cross out the letter A at the top of Column ^8. Enter the 

 period of the dominant waves in Column kg according to WMO Code 3^55 shown 

 in Table 11. If Sea State is reported rather than wave height and period, 

 enter the state of sea (or amount) in Column kQ according to WMO Code 3700 

 as shown in Table 12 and cross out H at the top of Column k&, leaving 

 Column ii9 blank. 



Columns 50-53 WIND DIRECTION AND SPEED (FORCE) 



Enter direction from which the wind blows in Columns 50 and 51 according 

 to the code shown in Table 8. Table 9 is for conversion from points, quarter 

 points, or a scale of 32. There is a choice of entering either wind speed 

 or force in Columns 52-53: 



