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UNDERWAY
Deployment
- The underway system consists of a Seabird thermosalinograph, and a Wetlabs’ transmissometer and fluoromter. The equipment is currently plumbed to the boat.
System Setup
- Clean the transmissometer windows with ethanol and water.
- Open the through-hull valve on the intake side.
- Open valve to seachest.
- Bleed air out of seachest through valve on top of seachest.
- Turn on pump.
- Check to see if water is discharging over the side.
- Open valve to transmissometer and fluorometer.
- Slowly close seachest valve until flow meter reads 2 liters/minute.
Software Setup
- Delete TempSal.dat from the Windacs directory.
- Close Windacs.
- Power box for thermosalinograph.
- Open Term1621 program.
- Push F6 to wake-up terminal.
- Set date and time.
- Set sampling interval.
- Start logging data.
- Push Shift @
- Select 2: Adds Lat/Lon data.
- Push Shift @
- Push F10 to exit Term1621
Data Processing
- FTP the Underway file to /home/data65/pb/UNDERWAY/`cruise’.
- Logon to Simbios.
- Copy the *.DAT file to /home/data65/pb/UNDERWAY/work
- At the prompt type: dacs_matrix.s
- At the Matlab prompt type: sta_mn=underway(`file_name’)
- file_name will have the form mF`cruise_date’.dat
- Once the file has been processed type: save –ascii –tabs save_file sta_mn
- save_file should have the form `cruise’
- Exit Matlab
- Move all underway files to the respective cruise folder in /home/data65/pb/UNDERWAY.