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    Ocean current speed and direction were recorded at 5-minute intervals at a nominal depth of 100 m in McMurdo Sound at 77.7667 °S, 165.2000 °E by an Aanderaa Seaguard single-point current meter. The dates covered by the ocean current observations are from 3-11-2017 06:35:02 UTC to 20-11-2017 22:55:02 UTC. Current speed is provided in units of cm/s. Current direction is provided in degree relative to true north and is the direction the current is flowing towards.

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    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). README: https://store.pangaea.de/Publications/Robinson-etal_2020/AZFP2016_README.pdf Further details are provided at: Frazer, E. K., Langhorne, P. J., Leonard, G. H., Robinson, N. J., & Schumayer, D. (2020). Observations of the size distribution of frazil ice in an Ice Shelf Water plume. Geophysical Research Letters, 47, e2020GL090498. https://doi.org/10.1029/2020GL090498

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    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). README: https://store.pangaea.de/Publications/Robinson-etal_2020/AZFP2017_README.pdf Further details are provided at: Frazer, E. K., Langhorne, P. J., Leonard, G. H., Robinson, N. J., & Schumayer, D. (2020). Observations of the size distribution of frazil ice in an Ice Shelf Water plume. Geophysical Research Letters, 47, e2020GL090498. https://doi.org/10.1029/2020GL090498

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    Ocean salinity was recorded at 10 second intervals by a Seabird Electronics SBE 37 microCAT CTD at a nominal depth of 100 m in McMurdo Sound at 77.6152 °S, 164.8821 °E. The dates covered by the salinity observations at 100 m depth are from 28-10-2016 06:43:11 UTC to 13-11-2016 21:59:51 UTC. The salinity is reported in units of practical salinity. Ocean temperature was recorded at 10 second intervals by a Seabird Electronics SBE 56 thermistor at a nominal depth of 75 m in McMurdo Sound at 77.6152 °S, 164.8821 °E. The dates covered by the temperature observations at 75 m depth are from 3-11-2017 08:26:01 UTC to 20-11-2017 23:00:01 UTC. The temperature is reported in units of °C in the ITS-90 temperature scale.

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    Temperature and salinity observations were made at nominal depths of 75 m and 100 m, respectively, by Sea Bird Electronics sensors. 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. Ocean salinity was recorded at 10 second intervals by a Seabird Electronics SBE 37 microCAT CTD at a nominal depth of 100 m in McMurdo Sound at 77.6152 °S, 164.8821 °E. The dates covered by the salinity observations at 100 m depth are from 28-10-2016 06:43:11 UTC to 13-11-2016 21:59:51 UTC. The salinity is reported in units of practical salinity. Ocean temperature was recorded at 10 second intervals by a Seabird Electronics SBE 56 thermistor at a nominal depth of 75 m in McMurdo Sound at 77.6152 °S, 164.8821 °E. The dates covered by the temperature observations at 75 m depth are from 28-10-2016 06:43:11 UTC to 13-11-2016 21:59:51 UTC and 3-11-2017 08:26:01 UTC to 20-11-2017 23:00:01 UTC. The temperature is reported in units of °C in the ITS-90 temperature scale. Tidal height forecast data were produced from the WWW Tide and Current Predictor (http://tbone.biol.sc.edu/tide/tideshow.cgi?site=Ross+Island%2C+Antarctica) for Ross Island, Antarctica, for the period of the 2016 AZFP deployments. Related publication: Frazer, E. K., Langhorne, P. J., Leonard, G. H., Robinson, N. J., & Schumayer, D. (2020). Observations of the size distribution of frazil ice in an Ice Shelf Water plume. Geophysical Research Letters, 47, e2020GL090498. https://doi.org/10.1029/2020GL090498 GET DATA: https://doi.org/10.1594/PANGAEA.923762

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    Tidal height forecast data were produced from the WWW Tide and Current Predictor (http://tbone.biol.sc.edu/tide/tideshow.cgi?site=Ross+Island%2C+Antarctica) for Ross Island, Antarctica, for the period of the 2017 AZFP deployments. The dates covered by the tidal height forecast are from 8-11-2017 00:00 UTC to 13-11-2017 23:50 UTC.

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    Ocean salinity was recorded at 10 second intervals by a Seabird Electronics SBE 37 microCAT CTD at a nominal depth of 100 m in McMurdo Sound at 77.6152 °S, 164.8821 °E. The dates covered by the salinity observations at 100 m depth are from 28-10-2016 06:43:11 UTC to 13-11-2016 21:59:51 UTC. The salinity is reported in units of practical salinity. Ocean temperature was recorded at 10 second intervals by a Seabird Electronics SBE 56 thermistor at a nominal depth of 75 m in McMurdo Sound at 77.6152 °S, 164.8821 °E. The dates covered by the temperature observations at 75 m depth are from 28-10-2016 06:43:11 UTC to 13-11-2016 21:59:51 UTC. The temperature is reported in units of °C in the ITS-90 temperature scale.

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    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). README: https://store.pangaea.de/Publications/Robinson-etal_2020/AZFP2016_README.pdf Further details are provided at: Frazer, E. K., Langhorne, P. J., Leonard, G. H., Robinson, N. J., & Schumayer, D. (2020). Observations of the size distribution of frazil ice in an Ice Shelf Water plume. Geophysical Research Letters, 47, e2020GL090498. https://doi.org/10.1029/2020GL090498

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    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). README: https://store.pangaea.de/Publications/Robinson-etal_2020/AZFP2017_README.pdf Further details are provided at: Frazer, E. K., Langhorne, P. J., Leonard, G. H., Robinson, N. J., & Schumayer, D. (2020). Observations of the size distribution of frazil ice in an Ice Shelf Water plume. Geophysical Research Letters, 47, e2020GL090498. https://doi.org/10.1029/2020GL090498

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    Tidal height forecast data were produced from the WWW Tide and Current Predictor (http://tbone.biol.sc.edu/tide/tideshow.cgi?site=Ross+Island%2C+Antarctica) for Ross Island, Antarctica, for the period of the 2016 AZFP deployments. The dates covered by the tidal height forecast are from 4-11-2016 00:00 UTC to 17-11-2016 23:50 UTC.