March 12th, 2015: judging from the way the compass directions settled down, the buoy was redeployed on site at about 2300 UTC. This would have been at about 6pm local time on this Thursday evening.
March 31st, 2015: in catching up my data spreadsheets before preparing our CoRIS metadata submissions, I noticed that the buoy's WXT appear to be mostly uncommunicative. The WXT is the instrument made by Vaisala that measures winds and rains (both acoustically) as well as air temperature and pressure and relative humidity. The few measurements that did make it through appeared to agree with readings from the analog sensors, so this looks like primarily an issue of communications with the instrument. In fact there are signs of WXT trouble dating back to last December so this problem may have developed concurrently with the corrosion that caused the December power outage, and may have more or less the same underlying cause (terminal corrosion).
At the same time I mentioned that the panel humidity diagnostic seems to be running high, in the 30% - 40% range, which may indicate an improper seal on that chamber or perhaps insufficient desiccant packs.
April 17th, 2015: I was reminded by Kristi Foster of CCMI that the data feeds had never been restarted from this buoy post-redeployment. Rather than pass along the bad WXT data in our feeds I'd been waiting for word about a possible fix for the WXT problem. In talking over the status again, Jon Clamp stated that the WXT issue would likely not be resolved before early June at the earliest, and that resolving that problem would probably involve recovering the buoy to land again for repair. That being the case, I undertook to work around the WXT failure as much as possible and restart the data feeds.
April 24th, 2015: feeds of Cayman data have restarted to NDBC, the CHAMP database and CHAMP Portal, and CHAMP's G2 Ecoforecasting system. NDBC often chooses to withold data from a new or long-silent station while they perform their own QA process, so our data may not appear on their site until next week. The CHAMP Portal once again should be loading buoy data in near real-time, although fields sourced from the WXT will continue to be missing or (in some cases) corrupted. Data loads into G2 have already resumed although this may have limited effect because there does not at this time seem to be any ecoforecasts defined in G2 for this site.
Some links:
- the last 12 hours of data as posted on the CHAMP web page
- the NDBC page for this station
- the CHAMP Portal, which features data from this site
- the G2 Ecoforecasting page for this site (under construction)
Mike Jankulak
