@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61> a dcat:Dataset ;
    dct:description """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""" ;
    dct:identifier "9bb810b4-7969-4e56-8ad2-ffc74d4f8a61" ;
    dct:issued "2025-11-17T05:26:19.224546"^^xsd:dateTime ;
    dct:language "eng" ;
    dct:modified "2025-11-17T05:26:19.224555"^^xsd:dateTime ;
    dct:publisher <https://data.gov.au/organization/0143757a-86ab-43e4-bba6-4a3a2a02b6c4> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POINT (71.3900 -70.2200)"^^gsp:wktLiteral ] ;
    dct:title "Autonomous phase sensitive radar (ApRES) on Amery Ice Shelf 2015-2018" ;
    dcat:distribution <https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61/resource/81e24227-3c7a-48c8-8b00-105c30a6effd>,
        <https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61/resource/9075770a-dc7b-4a0c-a770-e4dc27593d7b>,
        <https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61/resource/b56f1a23-acb6-4e53-9bb1-905f1e447734>,
        <https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61/resource/fb0aa5a6-c488-46fd-9722-d9f65a638ae5> ;
    dcat:keyword "AMD",
        "AMD/AU",
        "APRES",
        "CEOS",
        "CONTINENT > ANTARCTICA > AMERY ICE SHELF",
        "EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER THICKNESS/ICE SHEET THICKNESS",
        "EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIER THICKNESS/ICE SHEET THICKNES",
        "FIELD SURVEYS",
        "FMCWR > Frequency Modulated Continuous Wave Radar",
        "GEOGRAPHIC REGION > POLAR",
        "OCEAN > SOUTHERN OCEAN",
        "RADAR ECHO SOUNDERS" .

<https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61/resource/81e24227-3c7a-48c8-8b00-105c30a6effd> a dcat:Distribution ;
    dct:description "Download the dataset." ;
    dct:format "HTML" ;
    dct:issued "2025-11-17T05:26:19.230340"^^xsd:dateTime ;
    dct:modified "2025-11-17T05:26:19.190965"^^xsd:dateTime ;
    dct:title "GET DATA > DIRECT DOWNLOAD" ;
    dcat:accessURL <https://data.aad.gov.au/eds/5205/download> .

<https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61/resource/9075770a-dc7b-4a0c-a770-e4dc27593d7b> a dcat:Distribution ;
    dct:description "Public information for AAS project AAS_4096" ;
    dct:format "HTML" ;
    dct:issued "2025-11-17T05:26:19.230345"^^xsd:dateTime ;
    dct:modified "2025-11-17T05:26:19.191188"^^xsd:dateTime ;
    dct:title "PROJECT HOME PAGE" ;
    dcat:accessURL <https://projects.aad.gov.au/search_projects_results.cfm?project_no=AAS_4096> .

<https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61/resource/b56f1a23-acb6-4e53-9bb1-905f1e447734> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2025-11-17T05:26:19.230348"^^xsd:dateTime ;
    dct:modified "2025-11-17T05:26:19.191400"^^xsd:dateTime ;
    dct:title "Creative Commons by Attribution logo" ;
    dcat:accessURL <https://i.creativecommons.org/l/by/3.0/88x31.png> .

<https://data.gov.au/dataset/9bb810b4-7969-4e56-8ad2-ffc74d4f8a61/resource/fb0aa5a6-c488-46fd-9722-d9f65a638ae5> a dcat:Distribution ;
    dct:description "Citation reference for this metadata record and dataset." ;
    dct:format "HTML" ;
    dct:issued "2025-11-17T05:26:19.230347"^^xsd:dateTime ;
    dct:modified "2025-11-17T05:26:19.191300"^^xsd:dateTime ;
    dct:title "VIEW RELATED INFORMATION" ;
    dcat:accessURL <https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4096_AM06_ApRES> .

<https://data.gov.au/organization/0143757a-86ab-43e4-bba6-4a3a2a02b6c4> a foaf:Agent ;
    foaf:mbox "info@aodn.org.au" ;
    foaf:name "Australian Ocean Data Network" .