#DATA_DATES: 2004/04/28 14:32:00 --- to --- 2004/05/16 08:58:00 #LON_RANGE: 139.47 W --- to --- 106.05 W #LAT_RANGE: 9.00 S --- to --- 18.18 N #DEPTH_RANGE: 29 --- to --- 973 m #SAC_CRUISE_ID: 00889 #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: KA0402a (GP204a TAO Mooring Cruise) #PORTS: Manzanillo, Mexico - Nuku Hiva, Marquises #GEOGRAPHIC_REGION: eastern equatorial Pacific #PROCESSED_BY: University of Hawaii #NAVIGATION: GPS #QUALITY_NAV: excellent #GENERAL_INFORMATION: CRUISE NOTES CHIEF SCIENTIST ON SHIP : Andrew Shepherd INSTITUTE : NOAA/PMEL COUNTRY : USA SIGNIFICANT DATA GAPS : SPECIAL SHIP TRACK PATTERNS : COMMENTS : Mooring cruise crossing the EQ along 125W ADCP INSTRUMENTATION MANUFACTURER : RDI HARDWARE MODEL : OS75 SERIAL NUMBERS : FIRMWARE VERSION : TRANSMIT FREQUENCY : 75 KHz ACOUSTIC BEAM WIDTH : TRANSDUCER BEAM ANGLE : COMMENTS : 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 58.0 degrees ADCP DATA ACQUISITION SYSTEM SOFTWARE DEVELOPERS : RDI SOFTWARE VERSIONS : VMDAS DATA LOGGER, MAKE/MODEL : ADCP/LOGGER COMMUNICATION : USER BUFFER VERSION : CLOCK : COMMENTS : 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 : COMMENTS : posmv was working the whole time, but only $PRDID messages : were acquired during the first half. $PRDID (first half) : and $PASHR (second half) were patched together, deglitched, : boxfilt, ... seems OK (calibration value and stddev, and : eyeball test during editing) 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 : Redo processing from ens files; apply POSMV correction manually. Lots of bad serial feeds ("bad navigation" in ENS files); Only $PRDID messages; often computer time was reset to local time 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: 71 out of 74 amp = 1.0041 + -0.0001 (t - 127.5) phase = -0.82 + 0.0091 (t - 127.5) median mean std amplitude 1.0040 1.0041 0.0088 phase -0.8420 -0.8183 0.4848 FINAL SELECTION : AMPLITUDE= 1.000 PHASE= -0.80 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