Table 8. — Estimated errors of depth measurement associated with measurement of attenuation 

 coefficient at two SCOT Expedition stations in the eastern tropical Pacific, April 1958 



[Station 6: lat. 21013' N. , long. H7°23 • W. Station 8: lat. 18041' N. , long. 1U0 53'W.] 



Station 



Wire 



Wire 



Depth 



Depth interval 



length angle Computed Observed Difference Computed Observed Difference 



Table 9. --The transmission (percentage T/m. ) of different sea water types at 25-m// intervals in 



the visible region of spectrum 



[Transmission characteristics of Type I, II, and III from Jerlov (1951). 

 Intermediate water types obtained by interpolation from Jerlov Types I, II, and III] 



■'■ These values are somewhat uncertain; they are based on an empirical extrapolation of the 

 Jerlov (1951) data. 



14 



