UH LADCP Documentation


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Timetables before and during a CLIVAR cruise

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Installation Agenda (typical)

Tasks that do not need any gear

1- Introduce yourself to the chief scientist, the res. tech., the computer tech., and the opposite watchstander.

2- Ask where we can reserve the space (if needed) in
  • the main lab (3 feet wide),
  • the computer lab or near CTD operators (3 feet wide) and
  • the wet lab or near the rosette (2 feet wide).

NOTE #1: We need the acquisition computer to be less than 5-7 m from the rosette itself (our cable is 7-m long). NOTE #2: It is better for the processing computer to be around CTD operators to help to know what is going on.

3- Ask the sailing time and the expected time to install the LADCP on the rosette.

4- Visit the space allowed and see how to run the cables and where to hang them above the floor.

Tasks to perform when and immediately after recovering the gear

5- locate the boxes (you should know beforehand where the boxes should be):

  • Once SOBs are located, vent all of them.
  • At some point in time, do not forget to add the oil to the battery that is going to be installed on the rosette
6- Measure the voltage of the SOBs, and charge them if needed, using a variety of techniques:
  • AMREL or TDK/LAMBDA battery charger
  • use of a small charger directly

Tasks once the boxes have been recovered and internet cables are available

7- In the main lab:

  • connect the processing (eg. artoo) and the acquisition (eg. lucy) computers to the local network

  • check that each can speak to each other (they can be reached via artoo.local and lucy.local)

  • ensure you have some email and/or phone access in order to discuss potential problem with UH
  • set the ntp clock on both computers: see Computer clock

8- If needed, open the LADCP instruments that are going to be used on the CTD rosette and check that everything seems well connected.

9- Talk to the instrument(s) with the cables that will be used on the CTD rosette. Use:
  • (1#) the 7-pin M/4-pin M SOB-to-Y cable
  • (1#) WHOI-made Y or star cable
  • (2#) 7-pin extensions
  • (1#) long power/comm/PC cable

10- Do a short (10-20 min) cast and download the data. Recharge the battery. Be sure that the time it takes to download the data and to recharge the battery appears normal (minutes for the short cast).

11- Do a long (2-3 hours) cast with each and download the data. Be sure that the time it takes to download the data and to recharge the battery appears normal (20-30 minutes max for downloading, 20-30 minutes to charge the battery if WH300s have been used, longer (?) if a WH150 is used).

12- If 8 to 10 are successful:
  • tell the res. tech. that you are ready to install the instruments and the cables on the CTD rosette

NOTE #1: To install the ADCP on the rosette, (1) use a piece of foam to rest the ADCP on the ground while it is being secured to the frame, (2) use one or several layers of electric tape around the ADCP depending on how loose the ADCP seems to be inside its frame and (3) use a marker to show where the ADCP is in the vertical with respect to the frame to monitor an eventual downward slip of the instrument (in which case, add a layer of electric tape if needed and re-adjust the height of the instrument).

NOTE #2: The instrument should be installed so that the beams are not obstructed by the edges of the rosette frame.

  • install the P/C long cable from the hangar to the wet lab
  • install the mechanism that hangs the cable in the air
  • install the battery charger (AMREL or TDK/LAMBDA) and the acquisition computer in the wet lab and put the processing computer in the computer lab
  • install the back-up disks

13- Finish the computer installation

  • connect the computers to the internet if available.

  • if possible, check that they can speak to the computer currents (the UH computer processing the SADCP data)

  • look at the SADCP website http://currents/ (will enable you during the currents to check the quality of SADCP data; although Jules is responsible for these data, because of your presence there you might be asked questions about it)

  • check that the computer can speak to the CTD computer if there is any (the Scripps computer processing the CTD data for instance)

    NOTE: This might not happen until several days into the cruise.

  • set up email (follow the ship instructions)

    NOTE #1: For lucy, keep the ingoing server as mail.hawaii.edu but the outgoing server should be mail.hawaii.edu in the hotel and the Melville server on the Melville.

    NOTE #2: set up email on artoo

  • set up the printer

  • print acquisition log sheets

14- Prepare

  • the list of steps to back up and download ancillary data (see an example)
  • set_cast_params.m (see how to)

Just before the ship leaves

15- Get boxes to secure things on your desk

16- Put things away and secure them.

17- Secure items (computers, disks, etc) in the different labs.

18- Prepare an inventory list for during the cruise. Most importantly, write down which item (SN?) is out its box (what is in the main lab, on the rosette, etc?) in which box it was, and the exact locations of each box.

19- Run through all the steps involved during a cast with opposite watchstander.

20- Clean the bench you used for testing and put away boxes. Assure that you have a relatively easy access to the boxes with SOBs to check on them during the cruise.

Secondary tasks

21- If necessary, copy the SADCP data from previous transit onto lucy?

22- Copy the inventory lists done on lucy onto artoo.

23- Label UH LADCP all the gear that is outside the boxes

24- Start the acquisition/processing journal

25- Help to load food

26- Attend the science meeting

Few days into the cruise

27- Ask the computer technician how to get the SADCP, CTD and GPS data

28- Test all back-up instruments and cables before putting everything away

29- Check on the batteries that the bubble does not build up too much. If it does, release the bubble regularly.