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Long-term Oceanographic Observations in Western Massachusetts Bay, Offshore of Boston
U.S. Geological Survey Digital Data Series DDS-74, Version 2.0

Mooring Identification and Mooring Log

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Every mooring (surface, subsurface, or bottom tripod platform) deployed by the Sediment Transport Group at the USGS Woods Hole Field Center is assigned a 3-digit mooring number that is used to key all information about the mooring and the data. The mooring numbers are assigned in anticipated order of mooring deployment in the field and are roughly sequential, although logistics may alter mooring deployment schedules. An Excel spread sheet mooring log is maintained that summarizes mooring deployments and recoveries. The entries in the mooring log include USGS mooring number, date deployed, date recovered, instrument serial numbers, calibration constants, and other documentation of each mooring and the instrumentation on it. A subset of the electronic mooring log is included in this report for moorings deployed at Site A (referred to as Boston in the location column of the mooring log) and Site B (referred to as Scituate in the location column of the mooring log). For each deployment at Sites A and B, the surface and subsurface moorings are assigned one mooring number, and each bottom tripod is assigned a different mooring number. Mooring numbers and data file identifiers are shown on plots of data available.

In addition to the electronic mooring log, paper logbooks are maintained to track instrumentation and field deployments. The Field Mooring Log is the notebook of the field team that physically deploys the instrumentation at sea. The Field Mooring Log includes: USGS mooring number, date and time deployed, date and time recovered, three dimensional spatial location, instrument serial numbers, deployment platform, and descriptions of significant events which occurred during field operations (for example was a mooring or tripod damaged, were divers necessary for recovery, were sensors fouled). In addition to the Field Mooring Logs, Instrument Logbooks are also kept for each instrument to record upgrades, failures, calibrations and other maintenance actions. These instrument logs are not included in this report.


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