(1) FILE NAME:  9504ctdb.alb

 (2) YEAR and MONTH:  1995, April

 (3) PI:  Dr. Jack Blanton

 (4) OTHERS:  Adelaide Ferriera

 (5) BRIEF DESCRIPTION of DATA FILE:  1m vertical bin averages of 15 CTD casts,
     including OBS and uncalibrated chlorophyll a fluorescence, taken aboard the
     R/V Blue Fin Altamaha River during a spring tide at both high and
     low water on April 17, 1995.

 (6) KEYWORDS:  Altamaha, CTD, Spring

 (7) RESEARCH LOCATION:  The Altamaha river from AL-003.0 to AL+015.0 (2 digit river
     code + 4 digit code for distance from river mouth in km).

 (8) EXPERIMENTAL DESIGNS AND METHODS: Casts were taken with a SeaBird Electronics CTD25
     (S/N 64).  After soaking at the surface for approximately 45 seconds, the CTD was
     lowered to the bottom by a power winch and then raised to the surface.  The
     collected data's downcasts were processed using standard SeaBird software to
     produce the 1m vertical bin averages.

 (9) NOTES AND COMMENTS:  Each cast has a header that contains information in the  
     following order: cast number, station location, date, time (EST), max water
     depth (M), latitude (N in degrees and minutes), and 
     longitude (W in degrees and minutes).  Estimated predicted tidal height at station
     AL+010: High Water at 0950 EST, Low Water at 1655 EST.

(10) VARIABLE DESCRIPTION:

      VARIABLE  VARIABLE DESCRIPTION          PRES/UNITS        CODED	
      --------  --------------------          ----------        -----

      cast      cast number                                       N 
      depth     depth                         0.1 M               N
      temp      temperature                   0.01 deg C          N
      sal       salinity                      0.01 PSU            N
      sig       sigma-t (density)             0.01 Kg/M^3         N
      fluor     uncalibrated chlorophyll a   
                fluorescence                  0.01 V*6            N
      obs       optical backscatterence       0.1 mg/L            N
        
(11) CALCULATIONS:
                  Salinity=PSS-78
                  Sigma-t=p(s,t,O)-1000
     Both salinity and sigma-t were computed by the SeaBird software program.  The 
     formulas used were obtained from "Algorithms for Computation of Fundamental    
     Properties of Seawater" by N.P. Fofonoff and R.C. Millard Jr.; Unesco technical
     papers in marine science #44, 1983.

(12) FOR MORE INFORMATION CONTACT: Julie Amft
                                   Skidaway Institute of Oceanography	
                                   10 Ocean Science Circle
                                   Savannah, GA 31411

(13) OTHER DATA FILES TO REFERENCE:

(14) REFERENCE CITATIONS: None

(15) FORMAT OF VARIABLES:
	
     FILENAME: 9510ctdb.alb
     
      Column #  Column Name  Type      Width  Decimals
      --------  -----------  ----      -----  -------- 
         1      Cast         numeric     7       0
         2      Depth        numeric     9       1
         3      Temp         numeric     8       2
         4      Sal          numeric     8       2
         5      Sig          numeric     8       2
         6      Fluor        numeric     8       2
         7      OBS          numeric     8       1

(16) NUMBER of RECORDS:  82 lines         

(17) STATUS: Type 2

(18) FOR ARCHIVAL USE: