Sonardyne Upgrades Indian Tsunami Detection Network

Sonardyne International has provided a major refurbishment of a network of deep water acoustic sensors which for the past decade have provided coastal communities around India with early detection of tsunami waves.

Deployed at key locations in the Bay of Bengal and Arabian Sea, the Sonardyne bottom pressure recorders (BPRs) detect the characteristic changes in water pressure 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 where it is relayed to the tsunami warning centre onshore for comparison with recent seismic activity. If validated, a wide scale alarm is raised to alert vulnerable communities, the company explained.

The detection system is owned and operated by India’s National Institute of Ocean Technology (NIOT) based in Chennai, and was conceived following the deadly Boxing Day tsunami of 2004.

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

In reaching the 10 year anniversary, the decision was made by NIOT to recover the BPRs one at a time and return them to Sonardyne’s main service centre in the UK for refurbishment and re-certification.

The work included replacing acoustic transducers, calibrating pressure sensors, replacing consumables and updating PCB firmware to the latest specification. All BPRs have now been returned to the field, the company noted.

Share this article

Follow Subsea World News

Events>

<< Oct 2019 >>
MTWTFSS
30 1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31 1 2 3

6th Offshore Well Intervention Conference Gulf of Mexico

The Offshore Well Intervention Gulf of Mexico conference (OWI GOM) is returning to Houston, Texas for its sixth year on Wednesday 20 – Thursday 21 November.

Featuring Anadarko, BP, Shell, Chevron, BHGE and Oceaneering, the conference aims to help operators transition to the latest compliance updates, WI systems and business models that enhance safety, quicken well access and improve commerciality.

Across two days, more than 200 delegates, 15 exhibitors and 30 speakers will network together and create solutions to some of the most pertinent industry challenges right now, through a conference programme focused on:

  1. Clarifying compliance updates
  2. Quicker well access and safer well control
  3. ​Understanding HPHT well intervention (systems)
  4. Forecasting well intervention activity, discussing new commercial models and comparing platform options
  5. Best practice riserless well intervention
  6. ​The latest well intervention equipment

For registration, speaking or sponsorship enquiries contact Abigail Clifton on aclifton@offsnet.com; +44 (0) 203 793 8800.

More info

read more >

OCEANS 2019

OCEANS is the bi-annual event for global marine technologists, engineers, students…

read more >

OTC Brasil

The conference is organized by the Offshore Technology Conference (OTC) and Brazilian Petroleum…

read more >

Europort 2019

Europort, organised in the world port city of Rotterdam, will be the leading exhibition for special purpose vessels…

read more >