Station 27 Oceanographic Monitoring Station

In recent years, Station 27 has been sampled about 2 - 4 times per month on average, primarily by oceanographic and fisheries research vessels, as part of the Atlantic Zone Monitoring Program (AZMP). Due to the length of the hydrographic time series at Station 27 sampling methods vary, and include instrumentation such as water-sampling bottles equipped with reversing thermometers, mechanical and electronic bathythermographs, and more recently conductivity-temperature-depth (CTD) recorders have been used extensively.

Therefore the accuracy of the data varies depending on which data collection method was used. In recent years, data collection at Station 27 has expanded to include a year-round high-resolution temperature-salinity mooring, an acoustic zooplankton fish profiler (AZFP) mooring which is deployed for 9 months each year from November - July, and a Viking buoy (AZMP-STA27) equipped with meteorological and surface oceanographic sensor suite, as well as a profiling CTD winch, which is deployed in late-spring through mid-fall.