CRUISE NARRATIVE: PR17
      (Updated 2005 MAR 22)
      
                               CRUISE SUMMARY INFORMATION
      
      A.  HIGHLIGHTS

               WOCE section designation  PR17
      Expedition designation (EXPOCODE)  49SU9202_4
                       Chief Scientists  Nobuo SATO/KMO
                           Cruise Dates  1992 FEB 25  to  1992 FEB 29
                                   Ship  R/V Shumpu Maru
                          Ports of Call  Kobe to Kochi

                                                31¼ 12.07'N
      Geographic boundaries of stations  131¼ 30.27'E             133¼ 29.5E
                                                29¼ 27.95'N
                     Number of stations  10     
           Floats and drifters deployed  0
         Moorings deployed or recovered  0
      
                           Chief Scientist's Contact Information
                                        Nobuo Sato
                                  Kobe Marine Observatory
                                     7-14-1 Nakayamate
                                   Chuo-ku Kobe-shi, 650
                                     JAPAN
      
      
      
      B.  CRUISE SUMMARY
      
      The cruise track and station locations of leg 4 are shown in Figure 1. The ship 
      departed Kobe on February 25, 1992, and made 6 CTD/rosette stations of  
      section PR17. 4 XBT stations were made between CTD/rosette stations. To the 
      first CTD/rosette station the ship reached at 1030 UTC on February 26, from the 
      last station departed at 1214 UTC on February 27.
      
      The CTD is EG&G NBIS Mark III B (6500 db type, no oxygen sensor). Water samples 
      were collected from 1.7 liter Niskin bottles mounted on the General Oceanics
      Rosette multisampler. However, surface water samples were collected by a 
      bucket.
      
      
      TABLE 1: Principal Investigators for All Measurements
      
                     Name                Responsibility         Affiliation
                     ------------------  ---------------------  ----------
                     Sukeyoshi TAKATANI  Oxygen, Nutrients, PH  KMO
                     Ryohei OKADA        CTD, Salinity          KMO
      
      
      TABLE 2: Cruise Participants for leg 4
      
                     Name                Responsibility         Affiliation
                     ------------------  ---------------------  ----------
                     Nobuo SATO          Chief Scientist        KMO
                                         Oxygen, Nutrients, PH
                     Ryohei OKADA        CTD Hardware           KMO
                                         CTD Software
                     Sukeyoshi TAKATANI  Oxygen, Nutrients, PH  KMO
                     Hiroki SUZUKI       Oxygen, Nutrients, PH  KMO
                     Shunta NAITO        Watch Stander          KMO
                     Keiichi SATO        Watch Stander          KMO
                     Jun OBATA           Watch Stander          KMO
                     Akiyoshi AWANO      Watch Stander          KMO
                     Yasuji HATA         Watch Stander          KMO
      
      
      
      C.  MEASUREMENT TECHNIQUES AND CALIBRATIONS
      
      C.1  CTD
      
      The CTD is EG&G NBIS Mark III B (6500 db type, no oxygen sensor). A HP 9000 
      Series 300 model 330 (Hewlett Packard) with 4 MB of memory was used as the 
      primary data collection device. 
      
      The temperature and pressure sensor were calibrated at the calibration facility 
      of SðEðA CO., LTD before the cruise. The results are shown in Table 3.
      
      Temperature and pressure (increasing) calibration values are used to correct CTD 
      data, by linear interpolation inside the calibrated regime. CTD data outside of 
      the regime is corrected by the calibration values on the boundary, at the each 
      side.
      
      Notice that the upcast pressure data is corrected by Pressure (increasing), not 
      Pressure (decreasing) in Table 3.
      
      
      TABLE 3: The temperature and pressure sensor calibration values
      
      
                   TEMPERATURE 
                     (Calibrated on January 31, pre-cruise)
                     --------------------------------------------------
                     Standard     CTD
                     Temperature  Temperature  Difference
                     -----------  -----------  ----------
                      1.9726       1.9872      -0.0146
                      3.5818       3.5966      -0.0148
                      5.2368       5.2514      -0.0146
                      7.4751       7.4903      -0.0152
                     10.2274      10.2434      -0.0160
                     12.5938      12.6111      -0.0173
                     15.0394      15.0582      -0.0188
                     20.1280      20.1500      -0.0220
                     25.1896      25.2145      -0.0248
                     30.1553      30.1818      -0.0265
      
                   PRESSURE 
                     (increasing, Calibrated on January 31, pre-cruise)
                     --------------------------------------------------
                     Standard     CTD
                     Pressure     Pressure     Difference
                     -----------  -----------  ----------
                        0.0          4.5       -4.5
                       98.0        102.1       -4.1
                      293.9        297.8       -3.8
                      489.9        494.3       -4.3
                      979.8        986.2       -6.3
                     1959.6       1966.6       -7.0
                     2939.5       2944.1       -4.6
                     3919.3       3921.3       -2.1
                     4899.1       4899.8       -0.7
                     5878.9       5879.7       -0.8
      
                   PRESSURE 
                     (decreasing, calibrated on January 31, pre-cruise)
                     --------------------------------------------------
                     Standard     CTD
                     Pressure     Pressure      Difference
                     -----------  -----------  ----------
                        0.0           5.1        -5.1
                       98.0         104.1        -6.1
                      293.9         302.0        -8.1
                      489.9         499.6        -9.7
                      979.8         991.4       -11.6
                     1959.6        1969.0        -9.3
                     2939.5        2944.8        -5.4
                     3919.3        3921.4        -2.1
                     4899.1        4899.7        -0.6
                     5878.9        5879.7        -0.8
      
      
      We collected water samples at 5 stations to decide the conductivity sensor 
      calibration constants, and done salinity analyses by using the salinometer,
      AUTO-LAB model 1601. But the measured salinity value of the water samples were
      too low to decide the calibration constants, for example, 34.634 (pss) for the 
      sample collected at the depth of 3782 decibar in pressure.
      
      In the result, we assume the conductivity sensor calibration constants in Table 
      4, not using the measured salinity value of the water samples.
      
      
      TABLE 4: The conductivity sensor calibration constants
      
                                        Bias  Slope
                                        -------------
                                        0     1.00000
      
      
      The temperature of "SU9202.SEA" and "SU????_?.CTD" files are described with the 
      international temperature scale of 1990, ITS-90.
      
      
      C.2  OXYGEN MEASUREMENTS
      
      The determination of dissolved oxygen was done by the modified version of the 
      Winkler method described in "Kaiyo Kansoku Shishin (Manual of Oceanographic 
      Observation)" published by the Oceanographical Society of Japan (1970). No 
      estimation of accuracy and precision and reagent blank has been done.
      
      
      C.3  NUTRIENTS ANALYSES
      
      The nutrients analyses were done by the Technicon Auto Analyzer II described in 
      "Kaiyo Kansoku Shishin (Manual of Oceanographic Observation)" published by the 
      Oceanographical Society of Japan (1970). No estimation of accuracy and precision 
      has been done.
      
      
      C.4  pH MEASUREMENTS
      
      The pH measurements were done by the pH meter (Denki Kagaku Keiki co., LTD) 
      described in "Kaiyo Kansoku Shishin (Manual of Oceanographic Observation)" 
      published by the Oceanographical Society of Japan (1970). No estimation of 
      accuracy and precision has been done. Notice that the order of measurements is 
      0.01.
      
      
      C.5  NOTES FOR THE SU9202.SUM, SU9202.SEA AND SU????_?.CTD FILES
      
      The first 2 characters of the file name of *.SUM, *.SEA and *.CTD files are SU 
      for R/V Shumpu Maru of Kobe Marine Observatory. These characters are followed by 
      the last two digits of the year and the month for the *.SUM and *.SEA files. 
      For the *.CTD files, the characters SU are followed by the unique station 
      number and the cast number given by the Japan Meteorological Agency.
      
      In "SU9202.SUM", we leave some position column blank (when bucket was used)
      because not recorded.
      
      In "SU9202.SEA", we leave "sample number (SAMPNO)" column of the surface layer 
      blank, because of using bucket.
      
      All water sample quality flags during this cruise were "3" (or "4", "5", "9"), 
      because no estimation of accuracy and precision has been made.
      
      In "SU????_?.CTD", we give the value -9 to "NUMBER OBS.", because we lost the 
      CTD raw data and data number of the observation stations when the earthquake 
      occurred in Kobe, Japan, on January 17, 1995.
      
      
      
      DATA PROCESSING NOTES
      
      Date      Contact         Data Type      Data Status Summary  
      --------  --------------  -------------  ---------------------------------------
      10/20/99  Bartolacci      CTD/BTL/SUM    Submitted; to be reformatted by S. Anderson  
                These data were obtained and sent to the WHPO by Jim Crease on 
                  1999.10.19.  All original data resides in the subdirectory called 
                  original.  Sum and Sea files need minor reformatting and will be 
                  sent to S. Anderson.  Sea pr17_JCrease.notes for email 
                  correspondence.
                Files present are:
                  SU9202.CTD.ZIP			
                  SU9202.DOC
                  SU9202.SEA
                  SU9202.SUM
                  pr17_JCrease.notes	
      
      08/04/00  Saiki           CTD/BTL        Data are Public    
                I am pleased to inform you that the PIs and participants of the one-
                time and repeat cruises conducted by the Japan Meteorological Agency's 
                vessels agreed to change most of the data status to public.
                
      08/15/00  Bartolacci      CTD/BTL/SUM    Data Reformatted, encrypted files taken offline
                Email sent by Masaro Saiki to release these data into the public 
                domain.  Encrypted files were moved to original directory.  
                  Note:  Encrypted files contain original unformatted data.  
                         Unencrypted copies were then edited to conform to WOCE 
                         format as follows:
                
                SUM:  removed hard carriage returns.
                      Added dashed header line below units.
                      Removed leading spaces before expocode.
                      Aligned *all* columns to conform with WOCE format.
                      Capitalized all headers. 
                      Added date/name stamp.
                      Changed expocode from 49SU9202/4 to 49SU9202_4.
                      Ran sumchk:  warnings pertain to missing lat/lon for 
                      following stations/ station combinations:
                        SU4617       2
                        SU4618       1, 2
                        SU4619       1, 2
                        SU4620       1, 2
                        SU4622       1, 2
                      
                      NOTE:  A copy of the formatted sumfile was edited to fill in 
                      missing cast code lats/lons.  Because lat/lons were sporatically
                      missing from all BE, BO, EN cast codes, lat/lons were copied 
                      from BE or EN to BO when needed to make one complete set of 
                      cast codes for a navigation file.  The station track was 
                      generated from this edited sumfile.  This copy resides in the 
                      original directory and is called pr17sum_for_nav.txt.
                      
                HYD:  removed hard carriage returns.
                      Changed expocode from 49SU9202/4 to 49SU9202_4.
                      Added leading zero to decimal values CTDPRS for
                      the following station/cast/samps:
                        SU4617       2      10
                        SU4618       3      20 
                        SU4619       3      21
                        SU4620       3      21
                        SU4621       3      22
                        SU4622       3      22
                      
                      Moved asterisks from bottle number column to sample number
                      column, since no bottle numbers were given, yet a quality
                      flag was designated.  Since sample numbers were supplied
                      the asterisks were moved to the top of this column.
                      
                      BTLNBR column is empty.  No values or missing data values.
                      CTDRAW column is also entirely empty (no missing data value)
                      
                      Ran wocecvt:  errors produced as a result of missing lat/lon
                                      in sumfile as well as missing bottle and ctdraw 
                                      fields.
                                    No other errors produced.
                      Added time/name stamp.
                	
                CTD:  Changed expocode from 49SU9202/4 to 49SU9202_4.
                      added two spaces in parameter header to line columns up with 
                        units columns.
                      Ran wctcvt.   Errors produced due to missing date/time 
                                      information in sumfile.
                                    no other format errors produced.
                      rezipped formatted files.
                 
      04/20/01  Uribe           BTL/SUM        Website Updated  CSV File Added  
                Bottle file was converted into Exchange format.  Website now contains 
                a link to the Exchange file.  #Station/Cast SU4617/2, SU4618/3, 
                SU4619/3, SU4620/3, SU4621/3, SU4622/3 were removed because of missing 
                navigational data.
                
      06/18/01  Uribe           CTD            Website Updated  CSV File Added, 
                sumfiles need to have gaps filled, see note:  CTD was converted to 
                exchange format. New files were put online. Sumfiles needed to go 
                through fix_sum_file.pl to fill in data gaps in order to run exchange 
                code.
                
      03/22/05  Kappa           Cruise Report  Updated
                Added Station Location Plot
                Added PDF version of the report
                Added these Data Processing Notes