                         CRUISE : CLIONE 5B/1987                           
                                                                           
Date   : April 1987                                                        
Area   : Eastern Irish Sea                                                 
CTD    : Shallow water unit                                                
                                                                           
                                                                           
Details of Lowerings                                                       
Altimeter fitted, Transmissometer fitted.                                  
(a) 11 profiles at designated stations on 3 sections N, S, E of Isle of Man
(b) 28 profiles at two anchored stations                                   
(c)  5  profiles at designed thorium stations (3 others  included  in  (a))
(Total = 44 profiles)                                                      
                                                                           
                                                                           
Calibration Details                                                        
Water samples collected for salinity analysis.                             
DSRT used to compare field corrections with laboratory.                    
Calibration of March 1987 but better fit with laboratory calibration of May
1987 and latter used.                                                      
                                                                           
Pressure  calibration  of  February 1987 (not  March)  after  cf  altimeter
readings.                                                                  
                                                                           
                                                                           
Corrections applied                                                        
 Pressure:                                                                 
     P(cor) = P(ctd) + 0.00338 * P(ctd) - 2.70                             
                                                                           
 Temperature:                                                              
     T(cor) = T(ctd) + dT                                                  
 where   dT = a*T(ctd)**2 + b*T(ctd) + c                                   
 and      a =  0.000149201                                                 
          b = -0.00277035                                                  
          c =  0.0691                                                      
                                                                           
 Salinity:                                                                 
     S(cor) = S(ctd) - 0.010                                               
