(1) FILE NAME: 9504odsi.slb

 (2) YEAR and MONTH: 1995, April

 (3) PI: Dr Jack Blanton

 (4) OTHERS: Adelaide Ferriera 
 
 (5) BRIEF DESCRIPTION OF DATA FILE: ODIS (surface mapper) file that measured various
     environmental parameters every 15 seconds in the Satilla River during low water
     of a spring tide on April 15, 1995.  

 (6) KEYWORDS: Satilla, ODIS, Spring 

 (7) RESEARCH LOCATION: The Satilla River from SL+006.5 to SL+033.0 (2 digit river code
     + 4 digit code for distance from river mouth in km).

 (8) EXPERIMENTAL DESIGNS and METHODS: The Oceanographic Data Interface System (ODIS)
     was designed to interface with an assortment of instruments that are on a 
     research vessel (see Lane Mitcham at the Skidaway Institute of Oceanography
     for technical details).  The intake for this system is located approximately 
     1.5M below the water's surface.  ODIS is currently connected to a Global
     Positioning System (GPS), a fathometer, a SeaBird Electronics thermosalinograph 
     (SBE21), three Turner fluorometers, and an external temperature sensor.  

 (9) NOTES and COMMENTS: Data lines with missing variable values appear as NaN.

(10) VARIABLE DESCRIPTION:
      
      VARIABLE  VARIABLE DESCRIPTION                      PRES/UNITS    CODED
      -------   --------------------                      ----------    -----

      date      date                                      mm-dd-yy        N
      time      24 hr GMT                                 0000 hr-min     N
      sec       seconds                                   00 seconds      N
      station   station location                          0.01 Km         Y
      depth     depth                                     0.1 M           N
      latd      latitude                                  N deg           N
      latm      latitude                                  N min           N
      lond      longitude                                 W deg           N
      lonm      longitude                                 W min           N
      cond      conductivity                              0.0001 S/m      N
      density   density (sigma-t)                         0.001 Kg/m^3    N
      sal       salinity                                  0.001 PSU       N
      temp21    SBE 21 temperature(inside cabin)          0.001 deg C     N
      temp3     external temperature sensor               0.001 deg C     N
      nephels   uncalibrated nephelometer                 0.001 V         N
      humics    humic fluorescence                        0.01 ?          N

(11) CALCULATIONS:  
		  Salinity=PSS-78
                  Sigma-t=p(s,t,O)-1000
                  Station=distance from river mouth
     Both salinity and sigma-t are computed by the SeaBird software program.  The
     formulas used wre 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.  The station location was interpolated 
     between known stations 2 km apart.

(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) FORMATION OF VARIABLES:

     FILENAME: 9504odsi.slb

        Column #  Column Name  Type    Width  Decimals
        --------  -----------  ----    -----  --------
           1      Date         date      9       0
           2      Time         numeric   6       0
           3      Sec          numeric   3       0
           4      Station      numeric   7       2
           5      Depth        numeric   6       1
           6      Latd         numeric   4       0
           7      Latm         numeric   6       2
           8      Lond         numeric   4       0
           9      Lonm         numeric   6       2
          10      Cond         numeric   8       4
          11      Density      numeric   8       3
          12      Sal          numeric   8       3
          13      Temp21       numeric   8       3
          14      Temp3        numeric   8       3
          15      Nephels      numeric   7       3
          16      Humics       numeric   8       2

(16) NUMBER OF RECORDS: 547 lines

(17) STATUS: Type 2

(18) FOR ARCHIVAL USE: