186 



HYDROGRAPHIC MANUAL 



PRESSURE CORRECTIONS IN FATHOMS 

 10 +8 +6 +4 +2 , 



^wl M ii li' i iiiiiiifii 



2000 



+.20 +.15 +.10 +.05 -.05 -.10 -.15 -.20 -.25 -.30 -.35 -.40 5 Fathom Layers 



+.80 +.60 +.40 +20 -.20 -.40 -.60 -.80 -1.00 -1.20 -1.40 -1.60 20 Fathom Layers 



t8.00 +6.00 +4.00 +2.00 -2.00 -4.00 -6.00 -8.00 -10.00 -12.00 -14.00 -16.00 200 Fathom Layers 

 TEMPERATURE AND SALINITY CORRECTIONS IN FATHOMS 



Figure 72. — Velocity correction graph, Form 117C. (Reduced about one-third. Do not use this figure 



derive corrections.) 



to 



