Temperature, salinity and acoustic backscatter observations and tidal model output in McMurdo Sound, Antarctica in 2016 and 2017

Acoustic volume backscatter measurements were made by an ASL Environmental Sciences Acoustic Zooplankton Fish Profiler (AZFP) operating at four-frequencies (125 kHz, 200 kHz, 455 kHz and 769 kHz). The AZFP profiled the top 25 m of the water column in 0.1 m bins.

All instruments were deployed through a landfast sea ice cover that was approximately 2 m thick. The WWW Tide and Current Predictor model was used to generate tidal height forecasts for the deployment periods.