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Amery Ice Shelf - hot water drill borehole AM06, RDI 300 kHz ADCP ocean velocity data 2010-2011

Created 23/06/2025

Updated 23/06/2025

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This dataset contains time-series of current profiles from beneath the Amery Ice Shelf obtained from an Acoustic Doppler Current Profiler (ADCP) (RDI 300 kHz broadband Workhorse) on the AM06 mooring string. The ADCP was positioned ~108 m below the base of the ice shelf and oriented to look upwards (i.e. toward the base of the shelf) to examine the water cavity boundary layer and the range (distance) from the instrument to the ice-ocean interface. Accounting for instrument displacement by ocean currents, changes in range are expected to be indicative of basal melting. The dataset contains ~1 year of velocity data from 07/01/2010 sampled at 30 minute intervals. In the vertical, the ADCP sampled 27 bins, with a measurement every 4m. Key variables in the dataset include ocean velocity (u, v, w), instrument orientation (pitch, roll, heading) and distance from the instrument to the ice shelf base (btdistance), as well as quality control parameters such as beam correlation (avbeamcor), strength of the return/echo amplitude (ampav) and velocity error (errv). Two data files are archived here, the raw data "adcp_am06_1noqc.nc" and the quality-controlled data "adcp_am06_1qc.nc". Descriptions of the quality control and post-processing are found in "readme.rtf" and notes and preliminary plots are found in "borehole2010_11.pdf".

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Additional Info

Field Value
Title Amery Ice Shelf - hot water drill borehole AM06, RDI 300 kHz ADCP ocean velocity data 2010-2011
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/82cab718-2b35-4f73-8508-65ccab0ac128
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 07/01/2010 - 08/01/2011
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        59.0,
        -75.0
      ],
      [
        80.0,
        -75.0
      ],
      [
        80.0,
        -66.0
      ],
      [
        59.0,
        -66.0
      ],
      [
        59.0,
        -75.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Amery Ice Shelf - hot water drill borehole AM06, RDI 300 kHz ADCP ocean velocity data 2010-2011". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/amery-ice-shelf-hot-water-drill-borehole-am06-rdi-300-khz-adcp-ocean-velocity-data-2010-2011