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Autonomous phase sensitive radar (ApRES) on Amery Ice Shelf 2015-2018

Created 23/06/2025

Updated 23/06/2025

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Raw data from two autonomous phase sensitive radar (ApRES) installations on Amery Ice Shelf, East Antarctica. Site, Lat, Lon, Installation, Retrieval AM06_borehole, -70.228432, 71.391693, 17-Jan-2015, 03-Feb-2018 AM06_downstream, -70.225635, 71.395988, 09-Mar-2015, 03-Feb-2018 ApRES phase-sensitive radar is a low-power, light-weight instrument developed in a collaboration between BAS and University College London. It is a 200-400 MHz FMCW radar, with a 1-second chirp, run by controller. Each radar was set to produce a burst of 50 chirps every 4 hrs, and a config file with radar settings is provided with each dataset. Files: *.dat - binary files containing raw data config.ini - config file containing all radar settings used for each site Software for processing the raw data can be obtained from Dr. Keith Nicholls, British Antarctic Survey. Limited Matlab scripts are provided here to open the raw data. Command: f=fmcw_load('filename.DAT') Data structure: Variable name Unit Description Nattenuators - Number of attenuation settings used (1 or 2) Attenuator_1 dB RF Attenuator value 1 Attenuator_2 dB RF Attenuator value 2 ChirpsInBurst - Number of chirps in burst TimeStamp day Time of first chirp (Matlab date format) Temperature_1 C Instrument temperature 1 Temperature_2 C Instrument temperature 2 BatteryVoltage V Battery voltage Burst - Number of burst in file FileFormat - Identifies file format from different equipment versions vif V Voltage chirpTime day Time of chirp (Matlab date format) filename - Filename SamplesPerChirp - Number of samples per chirp fs Hz Sampling frequency f0 Hz Start frequency K rad/s/s Chirp gradient (200MHz/s) f1 Hz Stop frequency B Hz Bandwidth fc Hz Centre frequency er - Material permittivity ci m/s Velocity in material lambdac m Centre wavelength t s Sampling time (relative to first sample) f Hz Frequency stamp for sample

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Additional Info

Field Value
Title Autonomous phase sensitive radar (ApRES) on Amery Ice Shelf 2015-2018
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/831dd9ee-2e16-4f9f-85ad-63985eb53787
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 17/01/2015 - 03/02/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    71.39,
    -70.22
  ],
  "type": "Point"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Autonomous phase sensitive radar (ApRES) on Amery Ice Shelf 2015-2018". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/autonomous-phase-sensitive-radar-apres-on-amery-ice-shelf-2015-2018