#DATA_DATES: 2004/06/15 06:33:00 --- to --- 2004/07/25 02:54:00
 #LON_RANGE: 133.11 E --- to --- 159.79 W
 #LAT_RANGE:  22.36 N --- to ---  35.45 N
 #DEPTH_RANGE:     20 --- to --- 811 m
 #SAC_CRUISE_ID: 00804 
 #PLATFORM_NAME: R/V Melville
 #PRINCIPAL_INVESTIGATOR_NAME: Eric Firing, Jules Hummon
 #PI_INSTITUTION: University of Hawaii
 #PI_COUNTRY: USA
 #PROJECT: CLIVAR Global Carbon Program;repeat of WOCE One-time Line
 #CRUISE_NAME: ship_tag=VANC32MVos75 woce_tag=P02_2004A EXPOCODE=318M200406
 #PORTS: Yokohama to Honolulu
 #GEOGRAPHIC_REGION: Northwest and North Central Pacific Ocean
 #PROCESSED_BY: University of Hawaii
 #NAVIGATION: GPS
 #QUALITY_NAV: good
 #GENERAL_INFORMATION: 
CRUISE NOTES
  CHIEF SCIENTIST ON SHIP       : P.Robbins, Jim Swift
    INSTITUTE                   : Scripps Institute of Oceanography
    COUNTRY                     : USA
  SIGNIFICANT DATA GAPS         : 
  SPECIAL SHIP TRACK PATTERNS   :
  COMMENTS                      :
This dataset is derived from the OS75 instrument, which allows
greater depth penetration.  For greater resolution yet for
less penetration, see SAC ID 00803, the same cruise, yet
with the NB150 instrument.

ADCP INSTRUMENTATION
    MANUFACTURER                : RD Instruments (RDI)
    HARDWARE MODEL              : Ocean Surveyer 75
    SERIAL NUMBERS              :
    FIRMWARE VERSION            : 23.11
    COMMENTS                    :

ADCP INSTALLATION
    METHOD/DESCRIPTION OF THE
      ATTACHMENT TO THE HULL    : 
    LOCATION/DEPTH ON HULL      : 3m used in processing
    REPEATABLE ATTACHMENT       : 
    DATE OF MOST RECENT ATTACH. : May 2004
    ACOUSTIC WINDOW             : 
    COMMENTS                    : mounted with the ADCP pointing roughly  
                                  45 degrees starboard of forward

ADCP INSTRUMENT CONFIGURATION     
    DEPTH RANGE                 : 20m to 652m (bin centers)
    BIN LENGTH                  : 8m
    NUMBER OF BINS              : 80
    TRANSMIT PULSE LENGTH       : 8m 
    BLANKING INTERVAL           : 8m
    ENSEMBLE AVERAGING INTERVAL : 300 seconds
    SOUND SPEED CALCULATION     : FUNCTION OF TEMP AT TRANSDUCER
    BOTTOM TRACKING             : limited periods
    DIRECT COMMANDS             :
    COMMENTS                    : ping type:  broadband + bottom track
  (1) something is a little strange in the middle for a short time:
          stripes in u (only) exist at on-off station transitions .
          Not all were edited out.
  (2) data mostly collected with 80 bins 8mBB+BT
      except 2 files with 80m NB16 only
  (3) not much ringing at all compared to second half of cruise
  (4) data coverage affected by weather conditions (more than leg 2 nb16)
  (5) some possible underway bias in bb (edited out).

ADCP DATA ACQUISITION SYSTEM
    SOFTWARE DEVELOPERS         : RDI
    SOFTWARE VERSIONS           : VmDAS 1.40
    DATA LOGGER, MAKE/MODEL     : 
    ADCP/LOGGER COMMUNICATION   : 
    USER BUFFER VERSION         : UE4
    CLOCK                       : PC clock synch'ed to GPS time by UE4
    COMMENTS                    : 

SHIP HEADING
    INSTRUMENT MAKE/MODEL       : Sperry MK37, MK 23
    SYNCHRO OR STEPPER          : synchro
    SYNCHRO RATIO               : 1:1
    COMPENSATION APPLIED        :
    GPS ATTITUDE SYSTEM         : Ashtech
       LOCATION OF ANTENNAS     :
       RIGID ATTACHMENT         : yes
       LOGGING RATE             :

ANCILLARY MEASUREMENTS            
  SURFACE TEMP AND SALINITY   :   
  PITCH/ROLL MEASUREMENTS     : collected from Ashtech, not used to correct ADCP
  HYDRO CAST MEASUREMENTS     : yes
  BIOMASS DETERMINATION       : no
    DATE OF LAST CALIBRATION  :
    CALIBRATION COEFFICIENTS  :
    BEAM-AVERAGED AGC AVAILABLE?: < NO > < YES >
    CALIBRATION NET TOWS?     :   < NO > < YES >
  COMMENTS                    :

ADCP DATA PROCESSING/EDITING
    PERSONNEL IN CHARGE         : Jules Hummon
    ADDED TO NODC DB            : December 2004
    SOUND SPEED CORRECTIONS     : 
    DATE OF PROCESSING          : Fall 2004
    NOTABLE SCATTERING LAYERS   : 
    COMMENTS                    :  

NAVIGATION
   GPS                          : YES
      MAKE/MODEL                : Trimble Tasmon P-code
                                  Trimble NT200 DGPS
      SELECTIVE AVAILABILITY    : 
      P-CODE                    : yes
      DIFFERENTIAL              : yes, when available
      SAMPLE INTERVAL           : 1 Hz
      LOCATION OF ANTENNA
        RELATIVE TO TRANSDUCER  :
      TIME OBTAINED RELATIVE TO
        START/END OF ENSEMBLE   : start and end
      AVERAGING/EDITING APPLIED : ensemble position is average of start and 
                                  end fix for the ensemble
      LOGGED WITH ADCP DATA     : YES
      LOGGED INDEPENDENTLY      : YES, by ship's logging system.
      COMMENTS                  : 
   OTHER                        : bottom tracking available for limited periods

CALIBRATION
    GYROCOMPASS CORRECTION      : YES, with Ashtech,  
                                  use NB150 heading correction for os75
    BOTTOM TRACK METHOD         : NO
    WATER TRACK METHOD          : YES
    FINAL SELECTION             : final angle of transducers relative to ashtech:
                   transducer orientation  + 3.62 + (-2.14) = 45 + 3.62 + (-2.14)
    AGREEMENT WITH PREVIOUS
      CRUISES                   :
    COMMENTS                    :

NAVIGATION CALCULATION
    NAVIGATION USED             :  GPS
    REFERENCE LAYER DEPTH RANGE :  2 to 20, adaptive
    FILTERING METHOD FOR
      SMOOTHING REFERENCE LAYER
      VELOCITY (FORM/WIDTH)     :  Blackman w(t)=0.42-0.5*cos(2pi*t/T)+.08*cos(4pi*t/T), 1-hr halfwidth
    FINALIZED SHIP VEL/POSITIONS
      STORED IN DATABASE        : YES
    COMMENTS                    :

 GENERAL_ASSESSMENT             : OK 
    ON-STATION VS. UNDERWAY     :  OK
    VECTOR, CONTOUR, STICK PLOTS:  OK
    COMMENTS                    : 

 REFERENCES (DATA REPORTS,ETC.) :