#DATA_DATES: 2004/03/26 22:30:00 --- to --- 2004/04/22 13:58:00 #LON_RANGE: 115.84 W --- to --- 94.88 W #LAT_RANGE: 8.02 S --- to --- 28.13 N #DEPTH_RANGE: 29 --- to --- 813 m #SAC_CRUISE_ID: 00888 #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/PACS: Tropical Atmosphere-Ocean; Pan American Climate Studies #CRUISE_NAME: KA0401 (GP104 TAO Mooring Cruise) #PORTS: San Diego, CA to Manzanillo, Mexic #GEOGRAPHIC_REGION: eastern equatorial Pacific #PROCESSED_BY: University of Hawaii #NAVIGATION: GPS #QUALITY_NAV: excellent #GENERAL_INFORMATION: CRUISE NOTES CHIEF SCIENTIST ON SHIP : Dave Zimmerman INSTITUTE : NOAA/PMEL COUNTRY : USA SIGNIFICANT DATA GAPS : SPECIAL SHIP TRACK PATTERNS : COMMENTS : Mooring cruise crossing the EQ along 110W and 95W 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 813m BIN LENGTH : 16 m NUMBER OF BINS : 50 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 56.6 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 : COMMENT : 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: 67 out of 111 amp = 1.0029 + 0.0000 (t - 101.0) phase = -3.05 + -0.0945 (t - 101.0) median mean std amplitude 1.0030 1.0029 0.0099 phase -3.1930 -3.0493 1.2725 After POSMV Corrections: Number of edited points: 93 out of 112 amp = 1.0027 + 0.0000 (t - 100.7) phase = -2.29 + 0.0474 (t - 100.7) median mean std amplitude 1.0030 1.0027 0.0099 phase -2.3340 -2.2894 0.7263 FINAL SELECTION : AMPLITUDE= 1.000 PHASE= -2.400 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