A      CRUISE REPORT:  SR01

A.1    CRUISE NARRATIVE

A.1.1  HIGHLIGHTS

WOCE Line         SR01
Expocode          20VDSR0198_1
Chief Scientist:  JUAN ANDUEZA C
                  Servicio Hidrográfico y Oceanográfico de la Armada (SHOA).
                  Errázuriz 232, Playa Ancha.
                  Valparaíso, Chile.
                  Teléfono:  56-032-266675
                  Fax:       56-032-266542
Ship              AGOR60 - Vidal Gormaz.
Ports of call     Punta Arenas, Chile
Cruise Dates      November 26 - December 15, 1998


A.1.2  CRUISE SUMMARY

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

Number of stations
A total of 15 hydrographic stations were performed using a CTD sealogger 25.

Sampling:  
continuous 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
-----------------------------------------------------------------------
E.C. Sr Juan Andueza           Chief Scientist                     SHOA
E a C. Srta. Jenny Maturana    Chief of watch 1,computer operator  SHOA
E a C. Srta. Carolina Calvete  Chief of watch 2,computer operator  SHOA


A.1.4  Scientific Programme and methods

The principal objective of the cruise was to collect necessary information to 
increase the scientific knowledge of the dynamic of the Antarctic Circumpolar 
Current at Drake Passage in order to contribute to international WOCE program.


PRELIMINARY RESULTS

A.1.5 Major Problems Encountered on the Cruise

The major problem was the Pylon malfunction due to the breaking of a pin 
connector of the CTD-19. This CTD was replaced by the CTD-25 working just in the 
self-contained mode.

A.1.6  Other Observations of Note
       (none)

A.1.7  LIST OF CRUISE PARTICIPANTS

NAME                           RESPONSIBILITY                 INSTITUTION
-------------------------------------------------------------------------
E. C. Juan Andueza C.          Chief Scientist                       SHOA
E.C. Srta. Jenny Maturana A.   Chief of watch  1, computer operator  SHOA
E a C. Srta. Carolina Calvete  Chief of watch  2, computer operator  SHOA
S1° M. Placencia               Winch operator, XBT launcher          SHOA
S2° E. Ferrada                 CTD maneuver                          SHOA
S2° J. Caro                    CTD assistant                         SHOA
S2° J. Freire                  CTD assistant                         SHOA
M. S. N. Orellana              CTD assistant                         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 15 XBT launches  ( 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 instrument used was a CTD Sealogger-25, used in the self-contained 
       mode


A.3.7  CTD DATA COLLECTION AND PROCESSING


PROCESSING

Step 1
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 Aling CTD program to correct temperature and conductivity time 
   response shift  from the CTD sensors.

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

Step 3
   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 Center 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. 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.  Position of stations during WOCE SR1 1998.