Location note: the M/V Alec Owen Maitland grounded on a reef in the Key Largo National Marine Sanctuary in 1989. Additional data for this location are filed under NODC accession number 0010585.
Resource Description: NODC Accession Number 0039987. Additional data for this location are filed under NODC accession number 0010585.
A hollow, pre-cast concrete coral head or concrete and PVC monument have been used to protect and conceal thermographs. Where appropriate, bolt-on stainless steel brackets were used to secure instruments to structural supports (e.g. concrete or steel pilings) of fixed bridges or navigational aids.
Experience has shown that a 2 hour recording mode is adequate to monitor changes in reef tract bottom water temperature. Data has been collected, on average, annually from all instruments. Due to mechanical problems with some instruments, there are occasional gaps in the data streams from some of the monitoring stations.