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    "inLanguage":"eng",
    
    "name": "Autonomous phase-sensitive Radio Echo Sounder (ApRES) Measurements at North-Western Ross Ice Shelf, 2021-Present",

    
    "alternateName": [
    ],
    "dateCreated": [
    
      "2024-05-31T13:43:42"],
    "dateModified": [
    ],
    "datePublished": [
    
      "2024-05-31T13:43:43"],
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      "https://antcat.antarcticanz.govt.nz:/geonetwork/srv/api/records/40b1e023-5109-4946-a452-6a1fd5143351/attachments/40b1e023-5109-4946-a452-6a1fd5143351.png"],
    "description": "12 ApRES (Autonomous phase-sensitive Radio Echo Sounder) ice-penetrating radars were deployed on the Ross Ice Shelf in 2021\/22 to measure basal melting. Each radar measures a profile of the ice shelf, typically at hourly intervals. Changes in the range of the basal and internal reflectors can be used to estimate basal melting. Instruments return a small subset of data in near real time via Iridium SBD telemetry, allowing a crude estimate of melting. Full resolution data is stored on the instrument and can only be recovered with site visits. Instruments suffered failures during 2022, so the data sets have significant gaps within 2022\/23.\n\nData type: Binary as described in ApRES manual\n\nInstrument details are provided at:\nNicholls KW, Corr HFJ, Stewart CL, Lok LB, Brennan PV, Vaughan DG. A ground-based radar for measuring vertical strain rates and time-varying basal melt rates in ice sheets and shelves. Journal of Glaciology. 2015;61(230):1079-1087. https:\/\/doi.org\/10.3189\/2015JoG15J073\n\nGET DATA: craig.stewart@niwa.co.nz",

    
    
    


    
    "keywords":[
    "APRES","BASAL MELT RATE","ROSS ICE SHELF","INSTALLATION","K872B","ICE SHELVES","CRYOSPHERIC INDICATORS","Ice Shelf","Data Collections","Radar","ANTARCTICA","ASP"
    ]


    
    ,"creator": [

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          "@type":"Person"
          
            ,"name": "Stewart, C."
            ,"email":  ["craig.stewart@niwa.co.nz"]
          

          
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          "@type":"Organization"
          
            ,"name": "National Institute of Water and Atmospheric Research (NIWA)"
            ,"email":  ["enquiries@niwa.co.nz"]
          

          
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          "contentUrl": "https:\/\/antcat.antarcticanz.govt.nz\/geonetwork\/srv\/api\/records\/40b1e023-5109-4946-a452-6a1fd5143351\/attachments\/Ross%20Ice%20Shelf%20ApRES%20Sites%202021.kml",
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          "name": "Ross Ice Shelf ApRES Sites 2021"
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        "box": "-78.681 167.2298 -77.4165 171.6544"
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    ,"temporalCoverage": [
    
      "2021-12-01T00:00:00/"
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      ,"license": [
          {
          "@type": "CreativeWork",
          "name": "This data set conforms to the CC BY Attribution License (https:\/\/creativecommons.org\/licenses\/by\/4.0\/)"
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    , "citation": "Stewart, C.,  (
    2024
    ) Autonomous phase-sensitive Radio Echo Sounder (ApRES) Measurements at North-Western Ross Ice Shelf, 2021-Present.
    National Institute of Water and Atmospheric Research (NIWA).
        ,
    Accessed: 2026-07-07+12:00"

    }