news and photo from Jonathan Gomez

[Note: the following is a slightly edited version of an email received from Jonathan Gomez (who, along with Addison Titus, have been maintaining the two CREWS buoys in Tobago since Jahson Alemu's departure last March) on May 23, 2016. This post is back-dated to that date.]

Click on image to see original size.

I'll give you some updates on the two CREWS.  Myself and Addison removed the EXOs in March for servicing and calibration. Also, both CREWS's support lines and buoy were cleaned of fouling and inspected for wear. Also, in early May the BIC hardware was installed and we took the opportunity to service and calibrate the Buccoo EXO again. The software still needs to be installed for the BIC sensor to be added to the data stream however. We plan to do this in the next few weeks with guidance from Jon Fajans.

There are a couple issues with data from the EXOs however. For the Buccoo EXO, all parameters are functioning fine while doing the calibrations, but when connected to the CREWS we aren't seeing Dissolved Oxygen and pH in the data streams.

It also turned out there was a mix-up with the DO sensor. It was accidentally installed on the Speyside EXO during the December 2015 servicing. This with be corrected on our next trip mentioned above.

I think those are the main issues we have at the moment, if we have any others I'll let you know.

Both ADCPs are deployed and running. We downloaded the last set of data in March. I believe Jahson would do this every 6 months so we are continuing with that schedule for now.

I've attached two photos of the CREWS for you, 'Picture 303' is the Speyside one, and 'Picture 255' is the Buccoo one.

posted by Mike Jankulak