#DATA_DATES: 2000/05/20 19:30:00 --- to --- 2000/06/04 14:13:00
 #LON_RANGE: 158.75 W --- to --- 122.64 W
 #LAT_RANGE:  48.07 N --- to ---  57.74 N
 #DEPTH_RANGE:     17 --- to --- 489 m
 #SAC_CRUISE_ID: 01000 
 #PLATFORM_NAME: R/V Ron Brown
 #PRINCIPAL_INVESTIGATOR_NAME: E.Firing, J.Hummon
 #PI_INSTITUTION:  University of Hawaii
 #PI_COUNTRY:      USA
 #PROJECT: NOAA Ocean Explorer-- Sound in the Sea
 #CRUISE_NAME: rb0004 (+rb003L3)
 #PORTS:  Seattle, WA to Newport, OR
 #GEOGRAPHIC_REGION: Washington, Alaska, north Pacific
 #PROCESSED_BY: University of Hawaii
 #NAVIGATION: GPS 
 #QUALITY_NAV: good (no ashtech)
 #GENERAL_INFORMATION: 
CRUISE NOTES
  CHIEF SCIENTIST ON SHIP     : H.Matsumoto, A.Bobbitt, A.Lau
    INSTITUTE                 : Oregon State University
  SIGNIFICANT DATA GAPS       : 
  SPECIAL SHIP TRACK PATTERNS : 
  COMMENTS                    : 

ADCP INSTRUMENTATION
  MANUFACTURER                : RDI
  HARDWARE MODEL              : NB 150 (VM-150-18HP)
  SERIAL NUMBERS              :
  FIRMWARE VERSION            :
  TRANSMIT FREQUENCY          : 153.6 KHz
  ACOUSTIC BEAM WIDTH         :
  TRANSDUCER BEAM ANGLE       :
  COMMENTS                    : 

ADCP INSTALLATION
  METHOD/DESCRIPTION OF THE
    ATTACHMENT TO THE HULL    : Position roughly midship on hull.
                                Bolted onto stand inside seachest.
  LOCATION/DEPTH ON HULL      : transducer depth nominally at 5m (19')
  REPEATABLE ATTACHMENT       : yes
  DATE OF MOST RECENT ATTACH. : 1997
  ACOUSTIC WINDOW             :  no
  COMMENTS                    : 

ADCP INSTRUMENT CONFIGURATION     
  DEPTH RANGE                 : 17 to 489 m
  BIN LENGTH                  : 8 m
  NUMBER OF BINS              : 50
  TRANSMIT PULSE LENGTH       : 8 m
  BLANKING INTERVAL           : 4 m
  ENSEMBLE AVERAGING INTERVAL : 300 s
  SOUND SPEED CALCULATION     : Function of transducer temperature 
  BOTTOM TRACKING             :
  DIRECT COMMANDS             :
  COMMENTS                    :

ADCP DATA ACQUISITION SYSTEM
  SOFTWARE DEVELOPERS         : RDI
  SOFTWARE VERSIONS           : RDI DAS 2.48 with UE4
  DATA LOGGER, MAKE/MODEL     : 100 mb zip drive
  ADCP/LOGGER COMMUNICATION   : 
  USER BUFFER VERSION         : 1920
  CLOCK                       : 
  COMMENTS                    :

SHIP HEADING                      
  INSTRUMENT MAKE/MODEL       : Sperry Mark 37 gyro, a Sperry Mark 39 Mod 0 laser 
                                ring gyro, and a Seatex GPS antenna pair
  SYNCHRO OR STEPPER          : synchro
  SYNCHRO RATIO               :
  COMPENSATION APPLIED        :
  GPS ATTITUDE SYSTEM         : no
    LOCATION OF ANTENNAS      :  
    RIGID ATTACHMENT          : 
    LOGGING RATE              : 
  COMMENT                     : The Mark 37 gyro relies on manual latitude 
and speed corrections, the Mark 39 gyro relies on automatic speed log corrections.

   Heading was fed in from a laser ring gyro, not an ashtech, so there is no
   ashtech correction.
 
   Another heading source was the Seatex gps antenna pair.   Data were
   collected during the second star to compare these two heading sources
   (Seatex and Ring Laser Gyro).  A subset (subsampling at 10s) was compared
   and suggests differences within one cycle and between cycles of 0.1-0.15deg
   with larger differences due to causes unknown. 
       
ANCILLARY MEASUREMENTS            
  SURFACE TEMP AND SALINITY   : yes
  PITCH/ROLL MEASUREMENTS     : 
  HYDRO CAST MEASUREMENTS     : 
  BIOMASS DETERMINATION       :
    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         : J.Hummon
  DATE OF PROCESSING          : unconfirmed
  NOTABLE SCATTERING LAYERS   : 
  ADDED TO NODC DB            : Aug 2006 
  COMMENTS                    : 
Temperature data look fine.
Editing with gautoedit. 

NAVIGATION
  GPS                         : Three primary - a Trimble Centurian P-code GPS, 
                                a Magnavox MX-200 GPS, 
                                and a Northstar 941x differential GPS
    MAKE/MODEL                :
    SELECTIVE AVAILABILITY    : yes
    P-CODE                    : yes
    DIFFERENTIAL              : yes
    SAMPLE INTERVAL           : 
    LOCATION OF ANTENNA
      RELATIVE TO TRANSDUCER  : 
                                    4 ft. 4 in. to starboard
                                    86 ft. 7 in. aft
                                    59 ft. 9 in. vertical
                                    this is the p-code gps antenna 
    TIME OBTAINED RELATIVE TO
      START/END OF ENSEMBLE   : start and end of ensemble
    AVERAGING/EDITING APPLIED : ensemble position is average of end of present
                                ensemble and start of following ensemble
    LOGGED WITH ADCP DATA     : yes
    LOGGED INDEPENDENTLY      : yes
    COMMENTS                  :
  OTHER                       : 

CALIBRATION 
    GYROCOMPASS CORRECTION    : no
    BOTTOM TRACK METHOD         : no 
    WATER TRACK METHOD          : yes
    FINAL SELECTION             : AMPLITUDE=  1.00     PHASE= -1.80
    SOUND SPEED CORRECTIONS     : 
    COMMENTS                    : 

NAVIGATION CALCULATION             
    NAVIGATION USED             : extract GPS data using nmea_gps
    REFERENCE LAYER DEPTH RANGE : bins 4 to 12
    FILTERING METHOD FOR 
      SMOOTHING REFERENCE LAYER 
      VELOCITY (FORM/WIDTH)     : Blackman window function of width T ( .5 hr):
         w(t) = 0.42 - 0.5 * cos(2 * pi *t / T) + 0.08 * cos(4 * pi * t / T).
    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.) :