Weather: Cool and breezy. Slightly hazy with occasional wispy cumulus throughout the day

Tasking:

  • Started the day with data check showing one issue:
    • uconv 0.2m Gill sonic was inop, showing 999,999.99 for both component fields but otherwise streaming as expected. Upon inspection we found heavy corrosion between the connector pins due to moisture ingress. To be safe we replaced both the sonic and cable, leaving the old cable waterproofed and zip tied to the tower. Do we have a s/n table anywhere set up yet? (Just so I don't lose it, Gill 1536012 is now inop and replaced with 1335016)
  • We did a quick visual check of the power monitor board at relm and the fuse did not seem to be seated due to being angled. I removed and reseated it. After doing a double check of the data this appeared to have killed all streams from the serial board at relm. Returned to the tower and found the serial board fuse had blown. Replaced it and data streams returned to nominal with a loss of less than 15 minutes.
  • Decided to attempt to waterproof all Gill connectors a bit more with ziplock baggies and some electrical tape. Hopefully this will stop pooling of water in the boom mount which ultimately may be the culprit of the last two dead gills.
  • Continued theodolite survey of the UW temperature profiles. This is now mostly complete, one more survey position should be sufficient. I will create or add to an existing page explaining our methods and nomenclature for shooting them.
  • Spent the lion's share of the afternoon assisting April with the alignment of her LIDAR (lasers woot!). The manufacturer sent her an incomplete assembly so we helped with a makeshift temporary fix and got to learn about aligning the device.
  • Ended the day with another data check due to an IOP this evening, looking good.

Forgot about picking up the batteries until we were almost at site this morning, so that will be first thing tomorrow. Also it has been quite dry and rain is in the forecast for Thursday, so we plan on taking soil samples tomorrow. Good luck to all of the IOPers tonight!

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2 Comments

  1. Steve Oncley

    The "Staging and Field IDs" page is our ID list for this project.

    We had Gill corrosion issues on uconv, which was why I taped up all of the connectors.  Apparently, this is not sufficient??  The Gill connectors seem to not like being upside-down.

  2. Daniel Buonome AUTHOR

    If it is seeping in at the mating surface, then it would be difficult to tape due to the way the male cable connector overhangs the female bulkhead connector. Your tape job sealed all other possible points of ingress so it must be that one. The bags in conjunction with the tape should be sufficient waterproofing for the remainder of the project.