A     Cruise Report: PR14

A.1   Cruise Narrative

A.1.1 Highlights

WOCE Section:     20VDPR1494_1
ExpoCode:         Crucero WOCE  PR14, 1994

Chief Scientist:  Ximena Jara Urbistondo.
                  Servicio Hidrográfico y Oceanográfico de la Armada (SHOA).
                  Errázuriz 232, Playa Ancha.
                  Valparaíso, Chile.
                  Teléfono: 56-032-266666
                  Fax:      56-032-266542

Ship:             AGOR60 - Vidal Gormaz.
Port of call:     Puerto Montt, CHILE
Cruise Dates:     October 4 - 25 / 1994

A.1.2 Cruise Summary

Cruise Track: 
The cruise track and station locations are shown in figure 1.

Number of stations: 
A total of 50 hydrographic stations were performed using a sealogger 19 CTD 
model 1240.

Sampling:  
continuos profiles of temperature and salinity were made using a CTD. 

Floats, Drifters, and Moorings: 
(None)


A.1.3 List of principal Investigators

NAME                     RESPONSIBILITY                              INSTITUTION
-----------------------  ------------------------------------------  -----------
EaC. Sra Wanda García.   Chief of Watch 1, Computer Operator,               SHOA
                           Cruise Logger, Form filer.   
EaC. Sra. X. Jara U.     Chief of Watch  2, Computer and Seabeam,           SHOA
                           cruise logger ,  METEO/S.H.I.P 
                           message sender  


A.1.4  Scientific Programme and methods

The principal objectives of the cruise were:
To collect necessary information to develop ocean circulation models to predict 
decade climatic changes  in order to contribute to international WOCE program.


Preliminary Results

A.1.5  Major Problems Encountered on the Cruise
     - Hydrographic winch wire showed "knots" at stations25,26 28 and 30.
     - Winch power failure at station 27.
     - Winch display problems .
     - PC 486 showed malfunctions many times.

A.1.6  Other Observations of Note

A.1.7  List Of Cruise Participants

NAME                                  RESPONSIBILITY                 INSTITUTION
------------------------------------  -----------------------------  -----------
EaC. Sra. Wanda García L.             Chief of watch 1                      SHOA
S2.Serv (Oc) A. Sanchez R.            Winch operator                        SHOA
C1.Serv. (Db. Catr) J. Freire V.      Sampling assistant, XBT launcher      SHOA
M. Serv. (Oc.Bas.) D. Meza O.         Chemical analysi                      SHOA
M. Serv. (Oc. Bas.) M. Higueras M     Rossette maneuver , salinity sampler  SHOA
C2. (ME. Naveg.) P. Hernández G.      Seabeam-Ecosounder-Pinger operator,   SHOA
                                        Rossette maneuver   
S2. Serv. (Oc) A. Olivares I.         XBT launcher                          SHOA
M. Serv. (Oc. Bas.) P. Altamirano F.  Rossette maneuver, chemical analysis  SHOA
M. Serv. (Oc. Bas.) C. Saavedra M.    Rossette maneuver , water sampler     SHOA

A.2    Underway Measurements

A.2.1  Navigation: 
       (Not available)
A.2.2  Echosounding: 
       (Not available)
A.2.3  Acoustic Doppler Current Profiler (ADCP): 
       (None)
A.2.4  Thermosalinograph Measurements: 
       (None)
A.2.5  XBTs
       A total of  40  XBT launches (T5 and T7) were performed.
A.2.6  Meteorological Measurements
       Meteorological data measured were : wind speed and direction, air
       temperature, atmospheric pressure.


A.3    Hydrographic Measurement Techniques and Calibration

A.3.1  Sample Salinity Measurements: 
       (Not sampled)
A.3.2  Sample Oxygen Measurements: 
       (Not sampled)
A.3.3  Nutrients: 
       (Not sampled)
A.3.4  CFC: 
       (Not sampled)
A.3.5  Samples taken for other chemical measurements: 
       (None)

A.3.6  CTD Measurements
       The CTD used was a Sealogger-19 model 1240 bought by SHOA in 1992, whose 
       first calibration was made in 1995.  
A.3.7  CTD Data collection and processing

       Data registry  
       
       DATE      STATION 
       --------  -------------------
       10/6/94   1, 3
       10/7/94   2, 4, 5, 50, 49, 48
       10/8/94   47, 46, 32, 33
       10/9/94   34, 31, 30
       10/10/94  29, 28, 27, 26, 25
       10/11/94  24, 23, 22
       10/12/94  21, 20, 19, 18
       10/13/94  17, 39, 38
       10/14/94  37, 36, 35
       10/18/94  45, 44
       10/19/94  43, 42, 41, 40
       10/20/94  16, 15, 14
       10/21/94  13, 12, 11, 10
       10/22/94  9, 8, 7, 6
                
		
CTD SBE-19 model 1240 

It arrived in 1992 and it first calibration was made in 1995. Therefore, the 
calibration coefficients used were the ones from 1992. Slope and offset were 
obtained according to the time drift.

Temperature:				

 A =    3.67439294E-03  slope= 1
 B =    5.79923710E-04  offset= -0.0011
 C =    8.23609887E-06
 D =   -1.55263735E-06
F0 = 2408.120

Day  B    n      b/n    post-delta(t)  offset
--- ---  ---  --------- ------------- -------
 6  705  850  0.8294117   0.00129     -0.0011
 7  706  850  0.8305882   0.00129     -0.0011
 8  707  850  0.8317647   0.00129     -0.0011
 9  708  850  0.8329411   0.00129     -0.0011
10  709  850  0.8341176   0.00129     -0.0011
11  710  850  0.8352941   0.00129     -0.0011
12  711  850  0.8364705   0.00129     -0.0011
13  712  850  0.8376470   0.00129     -0.0011
14  713  850  0.8388235   0.00129     -0.0011
18  717  850  0.8435294   0.00129     -0.0011
19  718  850  0.8447058   0.00129     -0.0011
20  719  850  0.8458823   0.00129     -0.0011
21  720  850  0.8470588   0.00129     -0.0011
22  721  850  0.8482352   0.00129     -0.0011

            b:  number of days between calibration and the day of CTD cast.
            n:  number of days between calibrations.
Post-delta (T): temperature-drift value according calibration certificate.


Conductivity:
 
M =  2.6             offset = 0
A =  2.33127200E-03  slope1 = 0.999796
B =  4.91763158E-01  slope2 = 0.999795
C = -4.12966273E+00  slope3 = 0.999794
D =  5.64959638E-04  slope4 = 0.999792
E = -9.5700E-08      slope5 = 0.999791

Day  b    n      b/n   (Pre-slope)-1   Slope
--- ---  ---  --------- ------------  --------
 6  705  850  0.8294117  -0.000246    0.999796
 7  706  850  0.8305882  -0.000246    0.999796
 8  707  850  0.8317647  -0.000246    0.999795
 9  708  850  0.8329411  -0.000246    0.999795
10  709  850  0.8341176  -0.000246    0.999795
11  710  850  0.8352941  -0.000246    0.999795
12  711  850  0.8364705  -0.000246    0.999794
13  712  850  0.8376470  -0.000246    0.999794
14  713  850  0.8388235  -0.000246    0.999794
18  717  850  0.8435294  -0.000246    0.999792
19  718  850  0.8447058  -0.000246    0.999792
20  719  850  0.8458823  -0.000246    0.999792
21  720  850  0.8470588  -0.000246    0.999792
22  721  850  0.8482352  -0.000246    0.999791

Therefore, five *.con configuration files were created 
(PR14 A.con to PR14E.con)

Pressure

A0 = 4966.795
A1 =   -1.301054E+00
A2 =    1.217797E-08

Step1
1. Convert data from  *.hex to  *.cnv format using DATCNV program and  
   *.con configuration file.
2. Deleting negatives velocities using the leewoce.bas program 
3. Checking and cleaning the header files.
4. Computing the average down velocity value (X).
5. to apply the AlingCTD program to correct temperature and conductivity time 
   response shift  from the CTD'sensors.

Step 2
a) To apply DATCNV program to average observed values meter by meter.

Step 3
a) To apply  Winfilter program to filter data after step 2 , using a flexible 
   windows determined by the user.

A.3.8  Satellite image acquisition and processing: 
       (None)
A.3.9  Shipboard computing: 
       (None)


Note: All data from WOCE PR14 and SR1 cruises, have been passed to the National 
      Oceanographic Data Centre of Chile (CENDOC) for data management 
      purposes and to be quality controlled according to normal WHPO 
      procedures. Once finished they have been sent to the WOCE Hydrographic 
      Program Office at the Scripps Institution of Oceanography for 
      archival. The data remain non-public access  until new notification. 
      However, specific authorization will be forwarded to interested 
      scientist  if their goals do not overlap SHOA's goals. For major 
      information write to:
 
                                 Ricardo Rojas
                                Chief of CENDOC
                                  Casilla 324
                                  Valparaiso
                                    CHILE
                              e-mail rrojas@shoa.cl

      who can direct your request to the appropriate  decision channels. Do not 
      write directly to Principal Investigators. 



Figure 1. Location of Hydrographic stations during PR14-94







