ATHENA (IMET)


R/V OCEANUS DATA LOG - 1 minute log file
Primary Data File (ASCII)
05/28/01   00:00:01
Julian Seconds = 10054540801
ATHENA V5.3

001| JSECONDS  Date & time (Julian seconds)
002| CDATE     Computer date
003| CTIME     Computer time
004| GYRO      Ship's heading (Gyro syncro)
005| SPDLOG    Ship's speed (Sperry)
011| GPS_GGA   GPS NMEA GGA data string
012| GPS_VTG   GPS NMEA VTG data string
019| GPS_TYPE  GPS type (Std, Diff, P-Code)
020| IMET      IMET data {Wnd,Bar,Hum,SWR,Prc}
030| SSTMP     Sea surface temperature (C)
031| SSCND     Sea surface conductivity (mmho/cm)
032| SALINITY  Surface salinity, UNESCO 44
034| FLUORD    Fluorometer (MetraByte #3)
040| WIND      True wind speed (m/s) & direction
092| DEPTHRAW  Bathymetery raw depth data
104| GPS1_GGA  GPS NMEA GGA data string

The imet rain sensor registered 0 the entire trip. It did rain several times, 
the sensor was not working and will be changed out at the conclusion of this
cruise.

The voltages of the underway fluorometer were suspect. The fluorometer tube 
was cleaned May 12, 2001, and the voltages returned to normal. 

The athena data was converted into 'column' or 'matlab compatible' files 
(*.dat).  The original and the converted files are both located in 
/athena/asciilog. The header information for the columnized data is located
in columnhdr.


NARROW BAND ADCP (150ADCP)

The ASHTEC was not working during the cruise.

The pingdata files are located in /adcp. The generic adcp248  
configuration was used, and was copied to /adcp/adcp248.


CTD

The transmissometer started acting up at station 13, after trying it
out on deck and finding it working, performed one more cast. The 
transmissometer read very wierd numbers so unplugged and dummied off for
future casts. The seacable ground and power cable were changed out for
good measure. 

During cast 16, both conductivity sensors diplayed a step like behaviour below 
400 meters. After the cast the sea cable was ohmed out and found to have
an high resistance. The ground on the slip ring end of the seacable 
was found to be corroded. The termination end was respliced and the 
slip ring ground was redone. The seacable was re-ohmed and the resistance was
found to be normal for the legnth. 

The transmissometer was plugged back in for station 21, however the data
was still bizarre, it was again unplugged for station 22.


Directory Structure of the CDROM:

/CRUISE_ID                        present cruise id
/adcp                             150 pingdata adcp files
/adcp/adcp248                     150 adcp configuration files
/athena/asciilog                  imet data 
/ctd                              raw ctd data
/ctd/process			  processed ctd data
/ctd/seasave                      seasoft software
/docs                             n/a
/images                           n/a 
/pictures                         pictures 
/scripts                          helpful scripts
/share                            n/a
/src	                          n/a
/xbt                              n/a