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Departamento de Física

URI permanente para esta comunidadhttp://10.0.96.45:4000/handle/11056/14434

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Examinando Departamento de Física por Autor "Angove, Michael"

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    Integrating Volcanic Sources into the Tsunami Warning System for the Caribbean and Adjacent Regions
    (Sociedad Sismológica Americana (SSA), 2023-04-17) Von Hillebrandt-Andrade, Christa; Clouard, Valerie; Sostre-Cortés, Jelis; Vanacore, Elizabeth; Aliaga, Bernardo; Angove, Michael; Arcos, Nicolas; Chacon-Barrantes, Silvia; Dourado, Francisco; Gómez Ramos, Octavio; Joseph, Erouscilla; Kong, Laura; Lynch, Lloyd; McCreery, Charles; McNamara, Daniel; Paris, Raphael; Rodríguez, Lizzette; Watlington, Roy
    One of the goals of the UN Decade Ocean Science Tsunami Programme is that by 2030 actionable notifications are issued for all tsunamis, irrespective of source. In the Caribbean, 14% of all probable and definite historical tsunamis are associated with volcanoes (NOAA National Centers for Environmental Information). A tsunami triggered by the the Hunga Tonga Hunga Ha'apai eruption of January 15, 2022, was the most recent to be observed in the Caribbean and adjacent regions. This event as well as the eruption and related tsunami at Anak Krakatau (2018) and the eruptions of Kick’em Jenny (2015, 2017, 2018, 2020), Saint Vincent (2020) and La Palma (2021) reinforced the need for a tsunami warning system that can handle such non-seismic events. The UNESCO/IOC Intergovernmental Coordination Group for the Tsunami and Other Coastal Hazards Warning System for the Caribbean and Adjacent Regions was established in 2005. It coordinates tsunami warning and mitigation activities, including the issuance of tsunami bulletins for its 48 Member States and territories. Following the eruptions of Kick‘em Jenny in 2015, it established the Volcanic Sources Task Team to address the challenge of these nonseismic sources. A warning system, as the one operated by Tsunami Service Providers, (TSP, ie, the Pacific Tsunami Warning Center), is classically based on seismic and sea level data. Determined earthquake locations and magnitudes trigger initial action from the TSP, while sea level data confirm tsunami generation and help refine forecasts. For volcano sources, the task team has proposed that volcano observatories send messages to the TSP’s alerting them to potential and ongoing eruptions. These messages, vis a vis seismic information, would be the basis for TSP’s to issue initial standardized bulletins and products. The 2019 and 2023 CARIBE WAVE exercises included scenarios to test products and procedures for volcanic sources. However, more actions are required, including advancing the modeling of volcano scenarios and forecasting of triggered tsunamis, as well as expanding observations, including seismic and geodetic.
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    Progress in Preparing a Draft 10-Year Research, Development, and Implementation Plan for Ocean Decade Tsunami Programme (2021-2030)
    (2022-10-25) Hayashi, Y; Tummala, S. K.; Angove, Michael; Barrientos, Sergio; Chacón Barrantes, Silvia; Coetze, David; Von Hillebrandt-Andrade, Christa; Rabinovich, Alexander; Rayahu, Harkunti; Schindele, Francois; Yahav, Amir; Aliaga Rossel, Bernardo; Bailey, Rick J.; Chang Seng, Dennis; Haidar, Angelos
    In December 2017, the United Nations General Assembly adopted the 'United Nations Decade of Ocean Science for Sustainable Development (2021-2030)' resolution. It aims to significantly advance several research and technology development areas with a view to generating six societal outcomes (Ryabinin et al., 2019) including 'A Safe Ocean'. In June 2021, the Intergovernmental Oceanographic Commission (IOC) General Assembly established the 'Ocean Decade Tsunami Programme' (ODTP). The IOC also established the Scientific Committee (SC) as an advisory. The Working Group on Tsunamis and Other Hazards related to Sea Level Warning and Mitigation Systems (TOWS-WG) will act as the global steering committee of the ODTP. The implementation or coordination of roles for the regional aspects of the programme will be performed by four Intergovernmental Coordination Groups (ICGs). The SC has an advisory role to TOWS-WG for the duration of the ODTP. Members (two-year terms, renewable) of the SC are nominated by the TOWS-WG and each of the TOWS-WG Task Teams. It currently consists of 11 members (including the Chairperson S. K. TUMMALA) from 10 countries. The initial task of SC is to develop the Draft 10-Year Research, Development, and Implementation Plan for ODTP (Draft 10-Year Plan) for endorsement by the TOWS-WG. The committee has been preparing for the draft implementation plan by holding meetings in February and June 2022. It has extracted key issues on each area as follows: tsunami risk knowledge; monitoring, detection, and analysis and forecasting of tsunamis; warning dissemination and communication, preparedness, and response capabilities. The Draft 10-Year Plan will be promoting to advancing the monitoring, detection, analysis, and prediction of tsunamis, including those generated by non-seismic sources. The plan will include focus areas related to tsunami warning capabilities, such as the ITU/WMO/UNESCO-IOC Joint Task Force SMART Subsea Cables effort and collaboration with the Nippon Foundation-GEBCO Seabed 2030 project. The Draft 10-Year Plan will improve the societal outcome (A Safe Ocean) of the Ocean Decade with the aim of making 100% of the communities at risk of tsunami prepared for and resilient to tsunamis by 2030 through the implementation of the UNESCO/IOC Tsunami Ready Programme and other initiatives. Once the first draft is compiled, it will be made available to the member states of the IOC, scientific communities, and other stakeholders for comments. A final draft will be compiled by the committee on the basis of the collected opinions. Thereafter, the approval procedure will commence in IOC.