Autonomous phase sensitive radar (ApRES) on Totten Glacier 2016-2019

• Other Authors: GALTON-FENZI, BEN K (hasPrincipalInvestigator), COOK, SUE (processor), Australian Antarctic Data Centre (publisher)
• Format: Dataset
• Language: unknown
• Published: Australian Antarctic Data Centre
• Subjects: inlandWaters; GLACIER THICKNESS/ICE SHEET THICKNESS; EARTH SCIENCE; TERRESTRIAL HYDROSPHERE; GLACIERS/ICE SHEETS; APRES; RADAR ECHO SOUNDERS; FMCWR > Frequency Modulated Continuous Wave Radar; FIELD SURVEYS; GEOGRAPHIC REGION > POLAR; CONTINENT > ANTARCTICA > TOTTEN GLACIER; OCEAN > SOUTHERN OCEAN; Antarctic; Southern Ocean; East Antarctica; Totten Glacier; Antarc*; Antarctica; British Antarctic Survey; Ice Sheet
• Online Access: https://researchdata.edu.au/autonomous-phase-sensitive-2016-2019/1601538; https://doi.org/10.26179/bgnv-4h81; https://data.aad.gov.au/metadata/records/AAS_4436_Totten_Glacier_ApRES; http://nla.gov.au/nla.party-617536

Raw data from eight autonomous phase sensitive radar (ApRES) installations on Totten Glacier, East Antarctica. Site Lat Lon Installation Retrieval TI01 -67.333 114.019 26-Nov-2016 20-Dec-2017 TI02 -67.234 114.469 16-Nov-2016 09-Jan-2019 TI03 -67.449 113.587 03-Dec-2016 03-Oct-2018 TI04 -67.408 114.106 03-Dec-2016 24-Dec-2018 TI05 -67.332 114.354 25-Nov-2016 08-Jan-2019 TI06 -67.544 113.695 03-Dec-2016 24-Dec-2018 TI07 -67.744 113.779 24-Dec-2018 08-Jan-2019 TI08 -67.576 113.915 23-Dec-2018 29-Jan-2019 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 30 chirps every 1.5 hrs, and a config file with radar settings is provided with each dataset. Each ApRES was co-located with a GPS. Files: *.dat - binary files containing raw data config.ini - config file containing all radar settings used for each site Log.txt - log file from each instrument 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