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    Sonardyne upgrade for India’s national tsunami detection network

    Sonardyne upgrade for India’s national tsunami detection network

    A network of deep-water acoustic sensors that provides India’s coastal communities with an early warning of tsunami waves is being upgraded by marine technology company Sonardyne to extend both their endurance and capability.

    Deployed at key locations in the Bay of Bengal and the Arabian Sea, the network of Sonardyne’s Bottom Pressure Recorders (BPRs) is owned and operated by India’s National Institute of Ocean Technology (NIOT) as part of the country’s Tsunami Early Warning System (TEWS).

    The BPRs were first installed in 2007, as part of NIOT’s national tsunami detection system, which was conceived following the deadly Boxing Day Tsunami of 2004.

    The BPRs detect the characteristic changes in water pressure (as little as 1 cm in 4,000 m depth) caused by an earthquake in the deep ocean. If a tsunami wave is detected, an alert message is transmitted up to a satellite buoy on the surface. From there, it is relayed to the national Tsunami Warning Centre onshore for comparison with recent seismic activity. If validated, a widescale alarm is raised to alert vulnerable communities.

    Following a 10-year life refurbishment in 2017, the BPRs are now being upgraded to Sonardyne’s 6G hardware and Wideband 2 communications standard. The installation of low power electronics. new lower power consumption pressure sensors and doubled battery capacity of these maxi BPRs will significantly reduce maintenance visits and costs. Additionally, the acoustic telemetry signals used to transmit data to the surface will also now be fully digital, providing greater resilience to noise interference in the water column, as well as increasing bandwidth by ten-fold (from 600 bps to 6000 bps).

    The first batch of upgraded BPRs arrived in India in 2022, with further batches planned for shipment in 2023. In addition, Sonardyne are also supplying a large pool of spares to maintain a continuously available TEWS capability. These include floats and fittings for the larger Maxi BPRs being supplied, as well as transceivers for the surface buoys to communicate with the BPRs. NIOT are planning to use the upgraded capability to extend the number of permanently occupied stations.

    Each BPR is a customised version of Sonardyne’s Compatt transponder – a versatile subsea instrument that has a wide range of autonomous monitoring and measuring applications within offshore energy, survey and ocean science.

    Sonardyne’s BPRs benefit from being small and self-contained, with no cables, exterior sensors or batteries to interface, making them easy to deploy and more reliable. These features, alongside long battery life, reliable through-water communications and Sonardyne‘s expertise in long-endurance underwater monitoring applications, are the reasons why they were chosen for the Indian Ocean Tsunami Detection System back in 2007 and continue to protect their coastal communities 16 years later.

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    22 May 2023

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    06 Jun
    6 Jun 2023, 09:00 – 9 Jun 2023, 17:00

    Nor-Shipping 2023

    The Society of Maritime Industries is organising and managing the UK group of exhibitors in a dedicated high-traffic space in Hall D.  SMI only get a limited amount of space to offer companies...
    13 Jun
    13 Jun 2023 – 15 Jun 2023

    Seawork, Southampton

    SMI is partnering once again with Seawork, Europe’s largest commercial marine and workboat exhibition, to host the SMI Shipyard Pavilion. The annual exhibition brings together over 7,600...
    05 Jul
    5 Jul 2023, 08:30 – 6 Jul 2023, 17:00

    PTG visit to the Port of Antwerp-Bruges

    This port tour offers an invaluable opportunity to connect with industry professionals and gain valuable insights into the organisation and functioning of one of Europe's primary ports, while...
    12 Sep
    12 Sep 2023 – 15 Sep 2023

    DSEI 2023

    Held at the easy to access ExCel exhibition centre every two years SMI has secured space in DSEI’s Naval Zone to support member companies.  The Naval Zone at DSEI is an interactive...
    24 Oct
    24 Oct 2023 – 27 Oct 2023

    KORMARINE 2023

    Kormarine is the largest and most prestigious marine trade exhibition, fully supported by the world’s biggest Shipbuilders in Korea as well as leading international shipowners and offshore...
    07 Nov
    7 Nov 2023 – 10 Nov 2023

    Europort 2023

    Europort, organized in the world port city of Rotterdam, is the international maritime meeting place for innovative technology and complex shipbuilding. With an average of 25,000 professional...
    05 Dec
    5 Dec 2023, 09:30 – 8 Dec 2023, 16:00

    Marintec China 2023

    Marintec China is one of the largest maritime exhibitions and conferences in Asia. Marintec China reflects the size and importance of the Asian maritime market - especially the strength of the...
    13 Mar
    13 Mar 2024, 10:00 – 15 Mar 2024, 17:00

    APM 2024 (Asia Pacific Maritime)

    APM 2024 is on track to become one of the biggest maritime exhibition in Asia. SMI will be co-ordinating and organising the UK Pavilion and group activities at APM 2024. 
    19 Mar
    19 Mar 2024 – 21 Mar 2024

    INMEX Vietnam 2024

    SMI will be co-ordinating and organising the UK Pavilion and group activities at INMEX VIETNAM 2024. The upcoming edition of INMEX VIETNAM, set to take place in 2024, will once again unite a network...
    03 Jun
    3 Jun 2024 – 7 Jun 2024

    Posidonia 2024

    For over half a century the Greek shipping community, owning the world’s largest merchant fleet, has been welcoming international friends to Posidonia. 2024 will be no exception as this...
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    Marine Autonomy Challenge (MAChallenge)

    This exciting challenge is open to teams of students studying at UK universities. The first phase involves a video submission and the finals take place in November this year. Each qualifying team will be provided with an industry simulator to enable them to build the autonomous behaviours required to achieve a series of challenges.

    Enter Now
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