#DATA_DATES: 2004/10/27 01:45:00 --- to --- 2004/11/20 20:22:00
 #LON_RANGE: 167.62 E --- to --- 154.87 W
 #LAT_RANGE:   8.05 S --- to ---  21.36 N
 #DEPTH_RANGE:     34 --- to --- 978 m
 #SAC_CRUISE_ID: 00894 
 #PLATFORM_NAME: R/V Ka'imimoana
 #PRINCIPAL_INVESTIGATOR_NAME: M.McPhaden,E.Firing*,J.Hummon*
 #PI_INSTITUTION:  NOAA/PMEL and University of Hawaii*
 #PI_COUNTRY:      USA
 #PROJECT: TAO Tropical Atmosphere-Ocean
 #CRUISE_NAME: KA0406:os75nb (GP704 TAO Mooring Cruise)
 #PORTS: Honolulu to Kwajalein, RMI
 #GEOGRAPHIC_REGION: central equatorial Pacific
 #PROCESSED_BY: University of Hawaii
 #NAVIGATION: GPS
 #QUALITY_NAV: excellent
 #GENERAL_INFORMATION: 
CRUISE NOTES
  CHIEF SCIENTIST ON SHIP     : Linda Stratton
    INSTITUTE                 : NOAA/PMEL
    COUNTRY                   : USA
  SIGNIFICANT DATA GAPS       : 
  SPECIAL SHIP TRACK PATTERNS : 
  COMMENTS                    : Mooring cruise crossing the EQ along 
                                170W and 155W

ADCP INSTRUMENTATION
  MANUFACTURER                : RDI
  HARDWARE MODEL              : OS75
  SERIAL NUMBERS              :
  FIRMWARE VERSION            :
  TRANSMIT FREQUENCY          : 75 KHz
  ACOUSTIC BEAM WIDTH         :
  TRANSDUCER BEAM ANGLE       :
  COMMENTS                    : narrowband

ADCP INSTALLATION
  METHOD/DESCRIPTION OF THE
    ATTACHMENT TO THE HULL    :
  LOCATION/DEPTH ON HULL      : about 1m port of centerline of hull;
                                transducer depth nominally at 5m
  REPEATABLE ATTACHMENT       : YES 
  DATE OF MOST RECENT ATTACH. : 
  ACOUSTIC WINDOW             : NO 
  COMMENTS                    : 

ADCP INSTRUMENT CONFIGURATION     
  DEPTH RANGE                 :  29 to 973m
  BIN LENGTH                  : 16 m
  NUMBER OF BINS              : 60
  TRANSMIT PULSE LENGTH       : 16 m
  BLANKING INTERVAL           : 8 m
  ENSEMBLE AVERAGING INTERVAL : 300 s
  SOUND SPEED CALCULATION     : Function of transducer temperature (see below)
  BOTTOM TRACKING             :
  DIRECT COMMANDS             :
  COMMENTS                    : orginal transducer angle correction 58.73 degrees

ADCP DATA ACQUISITION SYSTEM
  SOFTWARE DEVELOPERS         : RDI
  SOFTWARE VERSIONS           : VMDAS
  DATA LOGGER, MAKE/MODEL     : 
  ADCP/LOGGER COMMUNICATION   : 
  USER BUFFER VERSION         : 
  CLOCK                       : 
COMMENTS        : problems with acquisition:
                       - posmv was flaky;
                       - choices of heading kept switching: gyro, posmv
                       - data were averaged with 1200s ensembles.
                  had to redo processing from ens files; apply
                  posmv correction manually.  data coverage to about 800m 
                  for most of the cruise

SHIP HEADING                      
  INSTRUMENT MAKE/MODEL       : Sperry Rand mk227 gyrocompass
  SYNCHRO OR STEPPER          : stepper
  SYNCHRO RATIO               :
  COMPENSATION APPLIED        :
  GPS ATTITUDE SYSTEM         : YES, POSMV
    LOCATION OF ANTENNAS      :  
    RIGID ATTACHMENT          : 
    LOGGING RATE              : 

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         : Jules Hummon
  DATE OF PROCESSING          : Sep 2005
  NOTABLE SCATTERING LAYERS   : 
  ADDED TO NODC DB            : Oct 2005 
  COMMENTS                    : 
 
NAVIGATION
  GPS                         : Yes, Trimble Centurion P-code
    MAKE/MODEL                : 
    SELECTIVE AVAILABILITY    : no
    P-CODE                    : 
    DIFFERENTIAL              : 
    SAMPLE INTERVAL           : 1 hz
    LOCATION OF ANTENNA
      RELATIVE TO TRANSDUCER  : 
    TIME OBTAINED RELATIVE TO
      START/END OF ENSEMBLE   :
    AVERAGING/EDITING APPLIED :
    LOGGED WITH ADCP DATA     : yes
    LOGGED INDEPENDENTLY      : yes, 1 Hz stream
    COMMENTS                  :
  OTHER                       : 

CALIBRATION 
    GYROCOMPASS CORRECTION      : POSMV corrections
    BOTTOM TRACK METHOD         : no bottom tracking
    WATER TRACK METHOD          : YES
Number of edited points:  98 out of 109
   amp   = 1.0007  + 0.0000 (t - 311.0)
   phase =  -0.21  + -0.0243 (t - 311.0)
            median     mean      std
amplitude   1.0010   1.0007   0.0087
phase      -0.2390  -0.2066   0.4895
    FINAL SELECTION             : AMPLITUDE=  1.000     PHASE=  -0.20
    SOUND SPEED CORRECTIONS     : yes
    COMMENTS                    :  
Heading corrections for these cruises were created during post-processing from
(1) synchro gyro feed to deck unit;
    extracted gyro headings from ENS files
(2) N2R file ascii messages with POSMV headings 

NAVIGATION CALCULATION             
    NAVIGATION USED             : extract GPS data using nmea_gps
    REFERENCE LAYER DEPTH RANGE : bins 2 to 20
    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.) : pending