The Buccoo Buoy was inspected on 11 May 2015. While the anchor ropes and
metal base required cleaning, the sonde, probes and protective case
were relatively unfouled. Badic maintenace was conducted on the sonde. None of the probes required the copper antifouling tape to be replaced. The sacrificial anode was replaced.
A calibration was not conducted on this trip, and the sonde was cleaned and re-installed.
Data from the Sontek ADP was collected. The unit seems to be working fine and the data looks good.
The status of RMY RH sensor remains the same.
Wednesday, May 27, 2015
March 2015 maintenance - Angel Reef
ARTO1 was inspected ans serviced over the period 14-17 March 2015. Minimal cleaning was required at this site. Anchor ropes and buoy base were cleaned.
The copper coating on the sonde probes was still intact and in good condition and was not replaced. Calibration of probes was conducted. However, the sonde was in re-installed until a 7 days later. The probes were maintained in a moist environment until the sonde could bere-installed.
The RMY temp/RH installed the previous month was not collecting data. The unit was inpsected and reinstalled, but the problem persists. On further correspondence with C-ARMs two other options will be looked at to correct the problem.
The Sontek ADP was also deployed on this trip.
Cellular communication was confirmed, but no RF communication could be achieved on the day.
The next visit is scheduled for the end of May 2015
The copper coating on the sonde probes was still intact and in good condition and was not replaced. Calibration of probes was conducted. However, the sonde was in re-installed until a 7 days later. The probes were maintained in a moist environment until the sonde could bere-installed.
The RMY temp/RH installed the previous month was not collecting data. The unit was inpsected and reinstalled, but the problem persists. On further correspondence with C-ARMs two other options will be looked at to correct the problem.
The Sontek ADP was also deployed on this trip.
Cellular communication was confirmed, but no RF communication could be achieved on the day.
The next visit is scheduled for the end of May 2015
Tuesday, February 10, 2015
February 2015 maintenance
Following the annual maintenance check conducted over the period 10-13 November 2014, a further check was conducted from 4-5 February 2015. The buoy was brought to shore and most instruments were
functioning and we had no problem connecting via RF but there was no
cellular connection. TheRMY tem/RH MET sensor previously removed in Nov 2014 for servicing was successfully re-installed.
The EXO2 sonde was calibrated and reinstalled. The Conductivity/Temp sensor seems to be defective. Temperature reading were quite low (as much as 15 deg C below ambient- ambient was checked against a handhelp YSI temp/conductivity probe). This seems to be a recurring problem. OIn september 2014 the Cond/Temp probe was found to be faulty, which was eventually returned to and replaced by YSI.
Minimal fouling was noted, but the unit was repainted with anti-fouling paint. All anodes and copper coating seemed intact. and the probe would not calibrate conductivity. All was downloaded from both loggers.
The EXO2 sonde was calibrated and reinstalled. The Conductivity/Temp sensor seems to be defective. Temperature reading were quite low (as much as 15 deg C below ambient- ambient was checked against a handhelp YSI temp/conductivity probe). This seems to be a recurring problem. OIn september 2014 the Cond/Temp probe was found to be faulty, which was eventually returned to and replaced by YSI.
Minimal fouling was noted, but the unit was repainted with anti-fouling paint. All anodes and copper coating seemed intact. and the probe would not calibrate conductivity. All was downloaded from both loggers.
Tuesday, December 2, 2014
Speyside CREWSannual maintenance
The Speyside CREWS was given an annual maintenance check over the period 10-13 Nov 2014. The buoy was brought to shore and all instruments were functioning and we had no problem connecting via RF but there was no cellular connection. All
data for the last year was downloaded from both loggers and is now in the hands
of TT IMA. The programs were re-loaded and the electronics were reset.
Cellular communications was restored immediately afterward. The RMY temp/RH is
in need of service/calibration but all other MET sensors seem to be measuring
accurately. The Temp/RH was removed for service and sonde recalibrated
prior to re-deployment on the 11 Nov 2014.
On the previous basic servicing (September 2014), the sonde was not functional due to erupted batteries in the battery well. These were replaced. The Temp/Cond was also found to be faulty, which was eventually returned to and replaced by YSI.
The breakage of the wiper parking garage has been noted as a regular problem with the CREWS inhibiting the proper settling of the wipers, and may be something the design team should look at.
On the previous basic servicing (September 2014), the sonde was not functional due to erupted batteries in the battery well. These were replaced. The Temp/Cond was also found to be faulty, which was eventually returned to and replaced by YSI.
The breakage of the wiper parking garage has been noted as a regular problem with the CREWS inhibiting the proper settling of the wipers, and may be something the design team should look at.
Monday, May 5, 2014
April 2014 scheduled maintenance
The Angel Reef CREWS given a basic maintenance service on 21st April 2014. No obvious physical damage was noted. Fouling was minimal and consisted of 3 barnacle spat. The wiper "garage" was replaced, and the coper coating on the CT probe. The failure of the Turbidity probe to pass the QC test remains unresolved (the same issue exist for BUTO1), even though it all seems right during the cal. Recommended action is a firmware upgrade.
Possible error with barometric readings. Pressure ranges from 1013-1015 millibar throughout the day. A 1millibar change suggest a 10m displacement.
Possible error with barometric readings. Pressure ranges from 1013-1015 millibar throughout the day. A 1millibar change suggest a 10m displacement.
Tuesday, March 25, 2014
Angel Reef (ARTO1) Scheduled CREWS Maintenance
The Angel Reef CREWS (ARTO1) was serviced on 20/03/2014 after
several months of basic maintenance. In January 2014 anomalous temperature and conductivity reading were detected and it was scheduled for maintenance in March 2014.
Pre-cal CTD
Depth: 1.11m
Temperature: 26.98
Conductivity: 55352
Salinity: 35.14
Little fouling was noted at this site. Mooring lines, the buoy and the hardware attached to the buoy remained intact and with no noticeable damage. Mooring lines and the buoy were fouled with few gooseneck barnacles, sessile barnacles and tufts of green filamentous algae. The anchors remained intact with no cracks or weaknesses noticed. The western most subsurface buoy has shifted up to the surface of the water, and will be adjust on next visit.
Little fouling was noted on the EXO2 and on the protective casing. Most of the copper coating surrounding the probes remained intact, but given the lenth of time since the last service they were changed. The probes were thoroughly cleaned of all barnacles, algae and other encrustations. All debris removed from the threading and krytox gel reapplied to all ports prior to reconnection to the base unit. On recalibration it was noted that the conductivity/temperature probe was faulty (during calibration it registered temperature of 1.xx e-9 and conductivity readings of 96500 in the conductivity standard) and has been replaced with a new probe. The faulty probe has been sent to YSI from examination. The new probe passed calibration process. A QC result was generated during the TSS calibration process for reasons undetermined. This also occurred during the first installation of the CREWS.
Pre-cal CTD
Depth: 1.11m
Temperature: 26.98
Conductivity: 55352
Salinity: 35.14
Little fouling was noted at this site. Mooring lines, the buoy and the hardware attached to the buoy remained intact and with no noticeable damage. Mooring lines and the buoy were fouled with few gooseneck barnacles, sessile barnacles and tufts of green filamentous algae. The anchors remained intact with no cracks or weaknesses noticed. The western most subsurface buoy has shifted up to the surface of the water, and will be adjust on next visit.
Little fouling was noted on the EXO2 and on the protective casing. Most of the copper coating surrounding the probes remained intact, but given the lenth of time since the last service they were changed. The probes were thoroughly cleaned of all barnacles, algae and other encrustations. All debris removed from the threading and krytox gel reapplied to all ports prior to reconnection to the base unit. On recalibration it was noted that the conductivity/temperature probe was faulty (during calibration it registered temperature of 1.xx e-9 and conductivity readings of 96500 in the conductivity standard) and has been replaced with a new probe. The faulty probe has been sent to YSI from examination. The new probe passed calibration process. A QC result was generated during the TSS calibration process for reasons undetermined. This also occurred during the first installation of the CREWS.
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| Exterior of base of sonde on removal from CREWS |
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| Exterior of top of sonde on removal from CREWS |
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| Inside of protective cover of sonde on removal from CREWS |
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| Some colonisation on sonde and state of sacrificial anode |
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| Still intact copper coating |
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| Some colonisers on cleaning brush and probes |
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| barnacle growing on cleaning brush |
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| Minor tear on copper coating |
Monday, November 25, 2013
Welcome to the Maintenance Log for the ARTO1 CREWS station!
This station was installed on November 25th, 2013. It is an anchored buoy located off the northeast coast of Tobago not far from Speyside, and is owned and operated by Caribbean Community Climate Change Centre (CCCCC or 5Cs) in collaboration with the Coral Reef Early Warning System (CREWS). CREWS handles the data stream and ecoforecasting for this station, and operates out of the National Oceanic and Atmospheric Administration's (NOAA's) Atlantic Oceanographic and Meteorological Laboratory (AOML).
We are informally referring to the buoy as ARTO1 (Angel's Reef, Tobago the 1st) although the National Weather Service in the US will also be giving it an all-numeric buoy designation.
For more information about CCCCC, please visit its website at this location: http://www.caribbeanclimate.bz/
The new buoy's exact coordinates are
We are informally referring to the buoy as ARTO1 (Angel's Reef, Tobago the 1st) although the National Weather Service in the US will also be giving it an all-numeric buoy designation.
For more information about CCCCC, please visit its website at this location: http://www.caribbeanclimate.bz/
The new buoy's exact coordinates are
N 11.301°
W 60.521°
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