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  • Member States  (14)
  • Scientific programmes  (8)
  • Tsunami  (6)
  • 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks  (5)
  • 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas
  • UNESCO-IOC  (23)
  • Nature Publishing Group  (4)
  • Springer Berlin / Heidelberg  (4)
  • American Institute of Physics (AIP)
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  • 1
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    UNESCO-IOC | Paris, France
    Publikationsdatum: 2022-09-28
    Beschreibung: The International Oceanographic Data and Information Exchange (IODE)1 programme of the Intergovernmental Oceanographic Commission (IOC) of UNESCO2 maintains a global network of National Oceanographic Data Centres (NODC) and Associate Data Units (ADU) responsible for the collection, quality control, archive, and online publication of many millions of ocean and marine observations which are made available to Member States. In addition, it coordinates a network of marine information (library) managers. The IODE Committee has long held the view that there is a need for a quality management framework to ensure that NODCs and ADUs are established and operate according to defined principles, including adherence to agreed standards and the requirements of the IOC Oceanographic Data Exchange Policy. This will ensure NODCs and ADUs are able to provide data of known quality to meet the requirements of a broad community of users.
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Not Known
    Schlagwort(e): Quality framework ; Oceanographic Data ; Data centres ; Data Units ; ADU ; NODC ; Member States
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 34pp.
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  • 2
    Publikationsdatum: 2022-09-28
    Beschreibung: This report reports on the establishment and working of the Advisory Group during its first session. This working group is a very good opportunity for the WESTPAC experts in the date and communication field to get together to constructively find a way to promote the project.
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Not Known
    Schlagwort(e): Member States ; Information and data management (IODE) ; NODC
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 33pp.
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  • 3
    Publikationsdatum: 2022-09-28
    Beschreibung: Through Decisions EC-XLVII/6.2 and XXVIII/5.1, IOC decided to establish an Intersessional Working Group and to support the production of the Global Ocean Science Report, which presents baseline information on human and technical capacities, infrastructure and investment, as well as impacts of ocean science at the global and national level. The Global Ocean Science Report (GOSR) was published in June 2017 where the Executive Secretary launched it at the United Nations “Oceans Conference” on 8 June 2017 in six languages. It includes information gathered from Member States via questionnaires, a bibliometric analysis, as well as other published resources. As acknowledged by the Inter-agency Expert Group on SDG Indicators (IAEG-SDG), part of the information provided in the GOSR contains the data needed to report towards the SDG target 14.a for increasing scientific knowledge, develop research capacity and transfer marine technology, and IOC was decided to be the custodian agency for the indicator 14.a.1. Continued support by IOC Member States would allow assessing the status of ocean science capacities, infrastructure and output in a regular analysis (each 4-5 years). In addition an endorsement by the IOC Assembly will enable and support Member States to submit and access the national data through the development of a GOSR data repository and data portal.
    Beschreibung: OPENASFA INPUT Restricted Distribution; Item 5.1 of the Provisional Agenda of the 29th Session of the IOC Assembly held at UNESCO/IOC Headquarters in Paris between 21 and 29 June 2017.
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Member States ; Global Ocean Science Report ; GOSR ; Impact of ocean science at global and national level ; Oceanographic Research ; SDG indicator 14
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 5pp.
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  • 4
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    UNESCO-IOC | Paris, France
    Publikationsdatum: 2022-09-28
    Beschreibung: This document prepared by the Secretariat illustrates the continuous alignment and synergies between the UN Decade of Ocean Science for Sustainable Development (2021–2030) and relevant programmes and activities of the IOC, in particular the High-Level Objectives and Functions of IOC defined in its Medium-term Strategy and the Outcomes set out in the Decade Implementation Plan. This information is particularly noteworthy as the Ocean Decade has now received endorsement by the UN General Assembly at its 75th session in December 2021.
    Beschreibung: OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): UN Convention on the Law of the Sea ; Ocean Decade ; Oceanographic Research ; Sustainable Development ; Science and Development ; Sustainable Development Goals ; IOC and the Decade ; Capacity Development ; Member States ; Ocean Decade Challenges
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 13pp.
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  • 5
    Publikationsdatum: 2022-09-28
    Beschreibung: For many years now, we have known we were running out of time to stop and revert the decline of ocean health and start managing the ocean in a sustainable way. The UN Decade of Ocean Science for Sustainable Development is an initiative of all and for all stakeholders, embracing natural and social science disciplines, local and indigenous knowledge, science policy and innovation interfaces, technology and infrastructure, aimed to achieve sustainable management of the ocean and development. This Decade will be transformative and will create a paradigm shift in the generation of ocean related knowledge, based on the principles of synergies, co design and co development of actions towards the agreed goals in a multi-stakeholder environment From the very outset, data and information have been recognized between the key issues cutting across all other elements and dimensions of the Decade. The Decade will facilitate the exchange of ocean knowledge between generators and diverse users of ocean knowledge through new data, information and knowledge platforms and services. Amongst the identified outcomes, outcome #6 tackles an accessible ocean with open and equitable access to data, information, technology, and innovation, improving access to and quality control of data, knowledge and technology. Data and information is further referred to in two of the challenges identified in the implementation plan, namely Challenge 8: “Through multi-stakeholder collaboration, develop a comprehensive digital representation of the ocean, including a dynamic ocean map, which provides free and open access for exploring, discovering, and visualizing past, current, and future ocean conditions in a manner relevant to diverse stakeholders” and Challenge 9: “Ensure comprehensive capacity development and equitable access to data, information, knowledge and technology across all aspects of ocean science and for all stakeholders”. We have now an opportunity to build together a community of ocean related data and information practitioners that shares resources, experiences, guidelines, tools, ways of addressing recurring problems. In short, a shared practice, so we can address together, efficiently, and effectively, the challenges of the Decade.
    Beschreibung: For bibliographic purposes this document should be cited as follows: UNESCO/IOC. 2020. International data sharing workshop for non-UN IGOs, Global and Regional organizations and projects, NGOs and private sector, Online meeting, 12 October 2020. Paris, UNESCO, 42 pp. (IOC Workshop Report No. 290) (English).
    Beschreibung: OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Member States ; Non-UN IGOs ; Global and Regional organizations and projects ; NGOs ; Private Sector ; Data Sharing Workshop ; ODISCat: Catalogue of Sources ; Ocean Data and Information System (ODIS) ; IOC Ocean InfoHub
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 44pp.
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  • 6
    Publikationsdatum: 2022-09-28
    Beschreibung: This document was initially prepared in April 2020 by Dr M. A. Atmanand, Chairman of the IOC Regional Committee of the Central Indian Ocean (IOCINDIO), pursuant to IOC Assembly Decision IOC-XXX/3.3.4 (Paris, 26 June–4 July 2019) to consider the transformation of IOCINDIO, an IOC Regional Committee, into an IOC Sub-commission. The document benefitted from inputs from IOCINDIO Vice-chairpersons Faiza Al-Yamani, Kuwait, Mohammad Muslem Uddin, Bangladesh, and Satish S. C. Shenoi, IOC Vice-Chairperson, Electoral Group IV. The document was originally intended as a working document for the consideration of the Executive Council in 2020 before its postponement as a virtual session with a limited agenda in February 2021. Upon further reflection of the authors with the IOC Chair and senior staff of the Secretariat, a broad and inclusive consultation on this subject among IOC Member States was initiated through a virtual meeting (see IOC Circular Letter 2824) and a discussion at the next IOCINDIO session during the first quarter 2021. The progress on this issue will be reported by the Executive Secretary in his report to the Executive Council -53 and through a working document for the consideration of the Assembly in June 2021.
    Beschreibung: OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Member States ; Governance ; IOC Sub-commission
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 12pp.
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  • 7
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    UNESCO-IOC | Paris, France
    Publikationsdatum: 2022-09-30
    Beschreibung: During the second meeting of the Group of Experts on Capacity Development (GE-CD), a task team was established to conduct a review of the IOC Capacity Development Strategy 2015–2021, which is expiring at the end of December 2021. This information document presents a summary of the task team’s review, articulating the main elements that would justify a revision of the current Strategy: mainly the challenges and objectives promoted by the UN Ocean Decade of Ocean Science for Sustainable Development (2021–2030) and the outcomes of the 2nd GE-CD survey. Feedback from consultations with other global and regional programmes were also considered in developing the recommendations contained in this report. Based on this analysis, the Task Team recommends that the GE-CD continue its work on revising the IOC CD Strategy for the period 2023–2030, extending the current Strategy until 2023.
    Beschreibung: OPENASFA INUT
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Capacity Development ; Scientific programmes ; Oceanographic Research ; Member States ; Group of Experts
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 70pp.
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  • 8
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    UNESCO-IOC | Paris, France
    Publikationsdatum: 2022-10-04
    Beschreibung: This document has been prepared by Laura Kong, Director International tsunami Information Centre (ITIC). The Tsunami Ready Recognition Programme is an international community-based recognition programme developed by UNESCO/IOC. It aims to build resilient communities through awareness and preparedness strategies that will protect life, livelihoods and property from tsunamis in different regions. In June 2021, the IOC Assembly through IOC Decision A-31/3.4.1 (Warning Mitigation Systems for Ocean Hazards) approved the establishment of the IOC Ocean Decade Tsunami Programme, with the aim of making 100% of communities at risk of tsunami prepared for and resilient to tsunamis by 2030 through the implementation of the UNESCO/IOC Tsunami Ready Recognition Programme and other initiatives. The implementation of the Tsunami Ready Recognition Programme will be a key contribution to achieving the societal outcome ‘A Safe Ocean’ of the Ocean Decade. This document presents the main features of a UNESCO/IOC Tsunami Ready Programme. It is presented to the TT DMP for discussion and approval for recommendation to the TOWS-WG-XV, for the establishment of the programme.
    Beschreibung: OPENASFA INPUT Working Document from the Meeting of the Inter-ICG Task Team on Disaster Management and Preparedness held online on 21-22 February 2022, Proposal for endorsement by IOC.
    Beschreibung: Published
    Beschreibung: Not Known
    Schlagwort(e): Tsunami ; Disaster risk reduction ; Warning systems ; Disaster management ; Ocean Hazards ; Warning mitigation systems
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 11pp.
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  • 9
    Publikationsdatum: 2022-08-12
    Beschreibung: A series of severe earthquakes hit Central Chile on Saturday, 27th February 2010. The main shock off Concepcion at 06:34 UTC (3:34 AM local time) had a magnitude of 8.8 Mw. The Pacific Tsunami Warning Center PTWC in Hawaii, USA issued a regional warning at 06:46 UTC (12 minutes after the event). This was the first ocean wide test of a system that was put in place nearly 45 years ago by UNESCO’s Member States through its Intergovernmental Oceanographic Commission (IOC), after a 9.5 magnitude earthquake on 22 May 22 1960 off Chile triggered a wide ocean tsunami that caused 61 fatalities in Hawaii and 142 fatalities in Japan, several hours after the earthquake. As indicated above, 12 minutes after the 27th February 2010 earthquake the Pacific Ocean Tsunami Warning System (PTWS) went into action, with timely and adequate information produced and disseminated across the Pacific Ocean. There were no fatalities reported far from the epicenter, however, near the epicenter off the Chilean coast, official accounts indicate over 156 fatalities due to the tsunami. Preliminary measures of a Rapid Survey Team deployed the week after the event by UNESCO showed run up measurements as high as 30 meters with most common measurements between 6 and 10 meters in the most affected area of the Chilean coast. This earthquake and tsunami event presented an ideal opportunity to assess the performance of the PTWS. To that end the UNESCO/IOC Secretariat for the PTWS sent out a post-event survey questionnaire to the Tsunami Warning Focal Points (TWFPs) and Tsunami National Contacts (TNCs) from its 32 Member States and territories. This report has been prepared by the Secretariat based on the responses received from 19 TWFPs and TNCs. Factual details of the earthquake event and the tsunami are presented and the results of the survey are listed in tables and displayed as timelines and maps. We underscore that all TWFPs received the first PTWC bulletin. In addition, most of the countries reported PTWC as source of awareness of the earthquake. Fourteen countries issued a tsunami warning and in 9 Member States coastal zones were evacuated. It would be pertinent that each Member State analyze if an evacuation would have been necessary in zones where no evacuation was made. In four countries, some areas were evacuated preventively (self-evacuation). Moreover, it was observed that sea level was monitored by most of the countries. In addition, some countries used results from numerical modelling and calculated earthquake parameters. Based on data and information collected from Member States the PTWS acted promptly and efficiently throughout the Pacific. However, and at the same time, this event demonstrated the need to reinforce the work of PTWS for near field events, particularly with denser sea level real time networks close to active subduction areas. Indeed, as it has been demonstrated by the case of the sea level station located in Talcahuano, Chile, sea level stations close to the epicenter may be partially or totally destroyed by the impact of an earthquake and/or a tsunami. Given the critical role sea level readings have in all tsunami warning systems, the sea level monitoring networks should be densified close to active subduction areas and redundancy of sensors and transmission paths be strongly considered. Most of the issues revealed by the survey can be addressed both by the PTWS and at the national level through increased regional cooperation and training where needed. Post-event assessments assist in this process by highlighting the strengths and weaknesses of the PTWS at regional, national and local levels and by raising the awareness of how Member States responded, both individually and collectively. The true value of such assessments is that it allows Member States to share information and experiences for the mutual benefit of improving the PTWS performance for all members.
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Tsunami ; PTWS ; Earthquakes ; Pacific Tsunami Warning and Mitigation System (PTWS) ; ASFA_2015::T::Tsunamis ; ASFA_2015::E::Earthquakes
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 159pp.
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  • 10
    Publikationsdatum: 2022-08-12
    Beschreibung: The 26 December 2004 tsunami in the Indian Ocean killed over 230,000 people, displaced more than 1 million people and left a trail of destruction. Considering that the Caribbean is a region prone to tsunamis, and recognising the need for an early warning system, the Intergovernmental Coordination Group (ICG) for the Tsunami and other Coastal Hazards Warning System for the Caribbean and Adjacent Regions (CARIBE EWS) was established in 2005 as a subsidiary body of the IOC-UNESCO with the purpose of providing assistance to all Member States of the region to establish their own regional early warning system. The main objective of the CARIBE EWS is to identify and mitigate the hazards posed by local and distant tsunamis. The goal is to create a fully integrated end-to-end warning system comprising four key components: hazard monitoring and detection; hazard assessment; warning dissemination; and community preparedness and response. The Pacific Tsunami Warning Centre (PTWC) in Hawaii is the interim tsunami warning service provider for the Caribbean. The West Coast and Alaska Tsunami Warning Centre (WC/ATWC) is providing tsunami warning service for the USA territories in the Caribbean region. The magnitude 7.0 earthquake in Haiti on the 12 January 2010 was one of the most severe earthquakes that occurred in this country in the last 100 years. It caused a large number of casualties and material destruction.In addition, the earthquake generated a tsunami that caused a runup of 3m at both Jacmel and Petit Paradis, Haiti and 1m in Pedernales, Dominican Republic. Furthermore, it was recorded with an amplitude of 12 cm (peak to trough) at the Santo Domingo sea level station in the Dominican Republic. The arrival time was at 22:40 UTC, namely 47 minutes after the earthquake occurred. This tsunami recalled the need to effectively implement the CARIBE EWS to be prepared for future potentially destructive tsunamis in the region. The event therefore presented an ideal opportunity to evaluate the performance of the CARIBE EWS to highlight both the strengths and weaknesses of the system, to identify areas that require further attention, and to provide a benchmark of the present status of the system. The UNESCO IOC Secretariat for the CARIBE EWS sent out a post-event survey questionnaire to Member States and territories that have identified their Tsunami Warning Focal Points (TWFP). Out of 28 questionnaires sent out, 23 responses were returned to the CARIBE EWS Secretariat in Paris. The objectives of the survey were to confirm that the NTWCs received bulletins from the interim advisory service in a timely manner, to determine what actions were taken by the NTWCs, and to find out if the Member States activated their emergency response plans based on the available information. The survey was very useful to get an overview of the current status of the CARIBE EWS. Tsunami bulletins were received timely by most of the countries that answered the survey. On the other hand, it was identified that sea level was scarcely monitored during the event, and that some National Warning Centres (NWC) do not know how to access sea level data over the GTS or over the IOC Sea Level Observation Facility website. Most NWCs did not use any numerical models during the event. It was observed, as well, that countries placed in watch level were able to distribute warnings and even preventively evacuate some areas. It is beyond the scope of this report to conduct a detailed interpretation of the results, and the survey results have been presented so that individual Member States and the ICG can draw conclusions from this exercise and decide on future action. Although progress has been made since 2005, it should be recognized that the CARIBE EWS is not yet fully implemented and much remains to be done to bring the system to full operational status. The ICG will continue to monitor the system to ensure continuous improvement during the development phase.
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Tsunami ; Earthquakes ; CARIBE EWS ; Tsunami warning ; ASFA_2015::E::Earthquakes ; ASFA_2015::T::Tsunamis
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 78pp.
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  • 11
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    UNESCO-IOC | Paris, France
    Publikationsdatum: 2022-09-21
    Beschreibung: Capacity building is an essential tenet of IOC’s mission: It enables all Member States to participate in and benefit from ocean research and services that are vital to sustainable development and human welfare on the planet. This Strategy’s vision identifies capacity development as the primary catalyst through which IOC will achieve its four high level objectives in the current 2014–2021 IOC Medium-Term Strategy. Over the past 55 years Member States have derived numerous benefits from IOC’s capacity development from the first International Indian Ocean Expedition to the revitalisation of African marine science coordination and establishment of the global tsunami warning network including the monitoring/forecasting networks that save lives (see addendum, section III). Reinforced partnerships between IOC and its Member States, other UN agencies, donors, and the scientific community have been the cornerstone of this success. During this period, the transformation of ocean science capabilities, accelerating threats to ocean health and ecosystem services, and the growing challenge of sustainable development require the IOC and its Member States to accelerate the pace of IOC capacity development. Resource constraints, both staff and funding, limit IOC’s ability to mobilise the necessary partnerships to address Member State science and services that will enhance human welfare and sustainable economic development. In 2014, the UN General Assembly adopted the Oceans and the law of the sea Reso lution   (A/RES/69/245) which reiterated the essential need for cooperation, including through capacity building and transfer of marine technology, “to ensure that States, especially developing countries, in particular the least developed countries and small island developing States, as well as coastal African States, are able both to implement the Convention1 and to benefit from the sustainable development of the oceans and seas, as well as to participate fully in global and regional forums and processes dealing with oceans and law of the sea issues.” 2015 will mark the establishment of the Post-2015 Development Agenda, which is expected to be integrated as Sustainable Development Goals (SDGs). IOC has a unique international niche in ocean science, services and capacity development: (a) fostering international cooperation for sustained observations of the oceans; (b) generating oceanographic data and information products and services and interaction between research, operational, user communities and decision-makers in order to derive maximum societal benefit from new knowledge to achieve IOC’s High Level Objectives. The IOC will mainstream its natural and social science approach to capacity development in its Member States and, in particular, in Priority Africa, SIDS and Gender Equality. This strategic framework provides six outputs and numerous activities that are elaborated in detail below. These outputs call for investing in people and the institutions of which they are a part, enhancing access to scientific tools and methodologies, reinforcing IOC’s capabilities to provide services to Member States, enhancing the communication between scientific and policy makers communities, expanding ocean literacy in civil society and mobilising resources to accomplish these goals. While this framework provides general guidance on elements of an implementation plan yet to be developed, elevating IOC’s impact to the scale required is contingent on: • Reinforcing and valuing IOC staff at global and regional levels and, where necessary, participating national ocean scientific and governance institutions; • Integrating IOC global and regional mechanisms to rapidly expand Member State participation in IOC programmes: - Empowering IOC regional sub-commissions and other subsidiary bodies o engage with Member States, expanding collaboration and capacity development (including transfer of marine technology) on their coastal and marine affairs priorities - Strengthening global science programmes to increase scientific engagement with Member State coastal and marine priorities; • Recommitting to partnerships through the IOC with its Member States, UN organizations and other agencies, scientific community and civil society; • Mobilizing resources, e.g., personnel, funds, knowledge, and observing networks, to deliver the capacity development on which science, services and human communities depend; and • Continued attention to “enabling institutional conditions” as identified in discussions on “The Future of IOC”. The conclusions identify elements of a draft work plan including conducting needs assessments to establish CD work plans, mobilizing associated resources and enhanced communication and collaboration.
    Beschreibung: OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Oceanography ; Capacity Development ; Scientific cooperation ; Member States ; Economic development ; UN Convention on the Law of the Sea ; Sustainable Development Goals ; Gender Equality ; Ocean Health
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 64pp.
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  • 12
    Publikationsdatum: 2022-09-24
    Beschreibung: This report presents a summary of the activities carried out by the Member States and Secretariat since the 29th session of the IOC Assembly (June 2017) up to July 2018. This document and the “Report on Budget Execution 2016–2017 and Outline of 2018–2019 Budget” (IOC/EC- LI/2 Annex 2) support the oral presentation of the Executive Secretary to the plenary session of the Executive Council. Part I provides detailed report by “functions” on the work accomplished since the 29th session of the Assembly in June 2017 up to this session of the Executive Council. Part II of this report provides an analytical overview of the IOC Programme implementation from January 2014 to December 2017 as presented to the Executive Board of UNESCO at its 2018 Spring session. An update on IOC Communication activities completes this report as an addendum. Decision proposed: The Executive Council is invited to take note of this report as in the draft decision EC-LI/3.1 in the Provisional Action Paper (document IOC/EC-LI/2 Prov.)
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Member States ; IOC Programme
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 34pp.
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  • 13
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    UNESCO-IOC | Paris, France
    Publikationsdatum: 2022-09-23
    Beschreibung: Established at the 3rd meeting of the GE-CD in December 2021, the Working Group on the revision of the IOC CD Strategy started discussions and noted at its first meeting in January 2022 the need to: (i) capture current CD initiatives by individual Member States, global and regional programmes, and other organizations/institutions; and (ii) make this information available as an ongoing service to Member States. The Working Group proposed the creation of an ocean science related ‘Capacity Development Compendium'
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Capacity development ; Member States
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 8pp.
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  • 14
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    UNESCO-IOC | Paris, France
    Publikationsdatum: 2022-09-23
    Beschreibung: The development of the Ocean Science programme of IOC is based on science in support of sustainability of ocean ecosystems in a changing environment according to EC-XLV/Dec.4.4. This document presents three science initiatives and the related Terms of Reference. All three initiatives represent an intensified effort to distinguish between natural and human-induced earth system variability though analysing possible impacts and consequences on certain marine ecosystems and marine life in general: (i) the IOC International working Group for Marine Time Series (IGMETS) to be continued; (ii) a new IOC working group to investigate Climate Change and Global Trends of Phytoplankton in the ocean (TrendsPO), in particular the coastal ocean; and (iii) a new IOC working group for the Global Ocean Oxygen Network (GO2NE).
    Beschreibung: OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): IOC Executive Council 49th Session ; Oceanographic Research ; Ocean Ecosystems ; Scientific programmes ; Marine Ecosystems
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 8pp.
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  • 15
    Publikationsdatum: 2022-08-06
    Beschreibung: Mr David Korenfeld Federman, the outgoing Chairperson of the IHP Intergovernmental Council, opened the session and welcomed all participants, expressing his wish for fruitful deliberations. He emphasized that water has emerged as one of the key issues on the international agenda due to major global developments such as the adoption of the standalone water goal in the 2030 Agenda for Sustainable Development, the establishment of the High-level Panel on Water, and the recognition of the importance of water in climate change adaptation during the discussions of the 21st session of the Conference of the Parties to the implementation of UNFCCC (COP 21). As major IHP achievements over the past two years, he highlighted: (a) the technical meeting of the IHP Bureau, held in Mexico in November 2014; (b) the celebration of the 50th anniversary of UNESCO water programmes; and (c) the publication “Water, People and Cooperation: 50 years of water programmes for sustainable development at UNESCO”. Mr Korenfeld, as the Chairperson of the Mexican IHP National Committee, further noted that during his tenure, Mexico has initiated the process for the establishment of a category 2 water centre on water security and published a 50th anniversary commemorative stamp.
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Water resources management ; Hydrological research ; Scientific programmes
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 24pp.
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  • 16
    Publikationsdatum: 2022-08-06
    Beschreibung: This document has been prepared in pursuance of Decision IOC-XXVIII/4 of the IOC Assembly at its 28th session (18-25 June 2015), which decided that the inter-sessional work on this subject should continue under the leadership of the IOC Officers with a view of providing a fully developed document with recommendation to the IOC Executive Council at its 49th session in 2016. Consistent with the decision, the document proposed for the review by the Executive Council results from the discussions at the Joint ‘Think Tank’ Retreat of the IOC Officers and the IOC Management Team, held from 5 to 8 January 2016 in Gilleleje, Denmark. The appendices to the document contain: (i) the draft messages adapted to specific audiences about the societal benefits of IOCs mission, programmes and activities based on the input from the sessional working group and the discussions in plenary; and (ii) a Concept note: A Second International Decade of (Integrated) Ocean Exploration, 2021-2030. Document IOC/INF-1337, ‘Synthesis of IOC development, work and results: opportunities and coincidences 1960–2015’ by Gunnar Kullenberg (past Executive Secretary) completes the documentation for this agenda item. Decision proposed: Full draft decision is presented in para. 173. The Executive Council will be requested to provide its recommendations on the proposed documentation to be used by the Officers in the intersessional period with a view of presenting the final proposal to the IOC Assembly at its 29th session in 2017.
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Scientific programmes ; Oceanographic research
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 43pp.
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  • 17
    Publikationsdatum: 2022-11-02
    Beschreibung: In follow-up to the audit of the Commission carried out by the External Auditor of UNESCO in April 2016, this document contains the Secretariat’s proposal for a draft implementation plan of the external auditor’s recommendations, as detailed in documents200 EX/20 Part II Rev. and 200 EX/20.INF.2.
    Beschreibung: OpenASFA input
    Beschreibung: Published
    Beschreibung: Not Known
    Schlagwort(e): Member States ; Audit
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 22pp.
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  • 18
    facet.materialart.
    Unbekannt
    UNESCO-IOC | Paris, France
    Publikationsdatum: 2022-11-02
    Beschreibung: In December 2004, 227,899 people lost their lives and around US$10 billion were estimated as overall economic losses in the 14 countries affected by the 9.1-magnitude Indian Ocean earthquake. In response to the devastation caused by the earthquake and consecutive tsunami, the international community reinforced and expanded its initiatives to reduce the tsunami-related risk of coastal communities worldwide. In response, the Tsunami Unit of the Intergovernmental Oceanographic Commission of UNESCO (UNESCO/IOC) was established. It aims to prevent the loss of lives and livelihoods that are caused by tsunamis, offering its support to IOC Member States in assessing tsunami risk, implementing Tsunami Early Warning Systems (EWS) and educating communities at risk about preparedness measures. Since 2015, the UNESCO/IOC has been promoting the Tsunami Ready Recognition Programme as an international performance-based community recognition pilot consisting of key actions that help to reduce tsunami-related risks to individuals and communities. Through the Tsunami Ready Recognition Programme, communities become aware of the risks they face from tsunamis and take steps to address them. To support current and future pilots, UNESCO/IOC commissioned the review and analysis of the Tsunami Ready Guidelines, which were initially established in the Caribbean, with the purpose of expanding the implementation of the programme globally. To this end, a desk-based review of all key documents and literature was conducted to assess the existing frameworks, documents and additional literature about the implementation of the Tsunami Ready Recognition Programme in different regions Figure 1. Recognition sign delivered and countries. Likewise, interviews with to St Kitts & Nevis, in 2021. experts on the Tsunami Ready Recognition Programme, as well as an online survey among relevant and experienced users, were conducted with the purpose of having a better understanding of the areas to be reinforced. This document presents the Standard Guidelines for the Tsunami Ready Recognition Programme based on the review process undertaken. After this introduction, the second section of this manual includes the framework and background information; the third section identifies key issues concerning the Tsunami Ready Recognition Programme and its methodological references; the fourth section presents the indicators to achieve the Tsunami Ready recognition, as well as the templates for requesting recognition; and finally, the fifth section contains the glossary of terms and a list of available tools and references to facilitate its implementation.
    Beschreibung: OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Not Known
    Schlagwort(e): Tsunami ; Disaster risk reduction ; Warning systems ; Ocean Decade ; Ocean Literacy ; Tsunami warning
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 62pp.
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  • 19
    Publikationsdatum: 2022-11-02
    Beschreibung: This report highlights the main outputs of the meeting of the Regional Subsidiary Bodies (RSBs), which was held on Monday 19 June 2017. The IOC Vice-Chair from Group IV, Dr Somkiat Khokiattiwong chaired the meeting. Fifteen Member States attended the meeting. The Executive Secretary, the Technical Secretaries of the three IOC Regional Sub commissions, Heads of Sections with IOC professional staff including consultants and interns attended the meeting. The IOC Regional Liaison Officer from the IOC Secretariat served as the Technical Secretary of the meeting. The meeting reviewed the main achievements and challenges facing these Bodies and the IOC as a whole including: their strong contribution to the IOC’s global mission as regional foci despite the shortage of resources and staffing. Field offices have a role to play in mobilizing and facilitating Member States from the regions with fund raising. But Member State engagement and support is crucial for overcoming the challenges and bringing the regional subsidiary bodies to their full potential. Finally, the meeting developed a number of propositions aimed at helping to address the common challenges identified and agreed upon with the recognition of the pivotal role of the IOC’s network of regional subsidiaries bodies. This report is submitted for information.
    Beschreibung: Restricted Distribution OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Oceanographic Research ; Scientific programmes ; Regional cooperation ; Regional Subsidiary Bodies (RSBs) ; Member States
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 6pp.
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  • 20
    Publikationsdatum: 2022-11-04
    Beschreibung: Through Decision EC-XLIX/4.4, the IOC Executive Council at its 49th session (Paris, 7–10 June 2016) decided to establish the Regular Working Group tasked to collect, integrate and assess the user requirements to GEBCO products and address ways of potential contributions to GEBCO data and products. This document contains the results of the review conducted by the working group, established in 2017, and recommendations for consideration by this Executive Council. The responses to the questionnaire conducted during the intersessional period are appended hereafter in English only.
    Beschreibung: OPENASFA INPUT Restricted Distribution Report submitted to the 51st Session of the Executive Council of the Intergovernmental Oceanographic Commission of UNESCO Held at UNESCO, Paris, France, 3-6 July 2018
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): Member States ; Sea-Level Warning and Mitigation Systems ; Bathymetry ; Gridded data ; GEBCO Digital Atlas ; Coastal Hazards ; Marine Spatial Planning ; Hydrographic survey planning ; Capacity Development ; OTGA
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 22pp.
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  • 21
    Publikationsdatum: 2022-11-04
    Beschreibung: The Intergovernmental Oceanographic Commission (IOC-UNESCO) has functional autonomy within UNESCO. It is the only UN body specializing exclusively in ocean science, ocean observation, ocean data and information exchange and dedicated ocean services such as Tsunami Early Warning Systems. In 2019, UNESCO’s Intergovernmental Oceanographic Commission was tasked to lead the UN Decade of the Ocean. This opportunity, combined with a fast-evolving ecosystem of international actors in an expanding and increasingly crowded ocean policy and marine science space, prompted IOC-UNESCO to request an evaluation of IOC-UNESCO with a focus on its strategic positioning within the UN system and the broader landscape of ocean-related actors and programmes to meet the high demand for sound ocean science in an oceanographic space. The evaluation found that IOC-UNESCO is a valued partner for Member States as well as other international and national actors, and indispensable for strengthening capacities and providing the data and technical information on ocean science policy that serves as a basis for national level data. IOC-UNESCO has been most successful in providing contributions to UN Frameworks and Conventions (e.g. UNFCCC, Sendai and CBD), in acting as a neutral platform to discuss the increasingly relevant issue of ocean health and climate change, in bringing Member States together and fostering exchanges between governments and scientists, as well as in providing to the extended oceanographic community access to data, information and science. However, strategic advocacy at the national level, engagement at the regional level, and resourcing and visibility of gender equality and women’s empowerment in the ocean space within and outside IOC-UNESCO are among the areas where further improvements are required. The establishment of the Decade of Ocean Science for Sustainable Development is the most important strategic institutional achievement of IOC-UNESCO in recent years. It is an important opportunity, but the absence of a clearly defined results framework and inadequate resources could jeopardize its success. Furthermore, it still needs to be determined how to best exploit IOC-UNESCO’s data and knowledge base and how UNESCO can best support the Decade, among other through intersectoral work.
    Beschreibung: OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Evaluation ; Oceanography ; International Oceanographic Commission of UNESCO ; Scientific programmes
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 61pp.
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  • 22
    Publikationsdatum: 2023-06-29
    Beschreibung: This document was first circulated for comments to IOC Member States through IOC Circular Letter No 2657 on 2 February 2017. The objectives of this document are to elaborate the idea of, and argue the case for, an international decade on ocean science for sustainable development. The endorsement to pursue further elaboration of the idea followed its initial presentation and discussion at the IOC Executive Council in June 2016. The context is provided by the 2030 Agenda and related UN frameworks, namely the Sendai Framework for Risk Reduction 2015, the SAMOA Pathway for SIDS 2014, the UNFCCC Conferences of the Parties, COP-21 in Paris 2015 and COP-22 in Marrakech 2016, together with previous intergovernmental agreements. The bases include: (i) the conclusions of the First Global World Ocean Assessment, in particular that we are running out of time to effectively protect the world ocean from multiple interactive stressors; and (ii) the finding of the Scientific Advisory Board of the UN Secretary General that, of eight Grand Challenges the world community is facing, the most important one is improving ocean science and effective management for the development of sustainable ocean knowledge-based economics. On these foundations, the document addresses a wide and diverse set of marine-related interests, including ocean science, sustained observations, marine environment problems and ocean (blue) economy. A historical analysis of developments over the 50-year period since the International Decade of Ocean Exploration 1971–1980 suggests that governments need to engage and act in partnership with the many different ocean communities in order to achieve focus, cohesiveness, cooperation and coordination of efforts. An International Decade of Ocean Science for Sustainable Development, potentially under the UN auspices, emerges as the promising path towards “THE OCEAN WE NEED FOR THE FUTURE WE WANT.”
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Oceanographic research ; Science and development ; Scientific cooperation ; Scientific programmes ; Ocean Decade ; Sustainable Development Goals (SDG) ; ASFA_2015::O::Oceans ; ASFA_2015::M::Marine environment ; ASFA_2015::W::Water resources ; ASFA_2015::S::Sustainable development
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 21pp.
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  • 23
    facet.materialart.
    Unbekannt
    UNESCO-IOC | Paris, France
    Publikationsdatum: 2023-11-03
    Beschreibung: The ocean is the largest ecosystem on the planet Earth. It is also the key feature of how our planet looks from the Space. Humans have to find harmony in living with the ocean. To continue benefitting from the ocean life-supporting function, an equilibrium must be sought between the continuously increasing use of ocean space and resources and restoring and maintaining the ocean’s health, which is currently in rapid decline. This understanding is captured in the formulation of the Sustainable Development Goal 14 of the 2030 Agenda: Conserve and sustainably use the oceans, seas and marine resources for sustainable development. The role of the ocean for climate, disaster risk reduction, future of island States is reflected in the Paris Agreement of UNFCCC, the Convention on Biological Diversity, the UN Sendai Framework for Disaster Risk Reduction, and the SIDS Accelerated Modalities of Action (SAMOA Pathway) and a number of regional, sub-regional and national action frameworks or development strategies. In the complex world we live in, with continuing and accelerating climate change, the success of all these frameworks depends on capacity of science to deliver needed solutions and on the ability and will of stakeholders to effectively use these solutions. The pivotal role of the Intergovernmental Oceanographic Commission of UNESCO is therefore to bring together the scientific communities, the governmental decision-making system, and a broader set of stakeholders within our Member States, including the private sector and the civil society as a whole, to develop efficient, science-based integrated ocean and coastal management and corresponding solutions., taking in consideration relevant indigenous, local and traditional knowledge. Never in the history of our civilization has such cooperation been so urgently required. There is a need to mainstream ocean science for managing the ocean, The emergence of an international legally-binding instrument on conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction (BBNJ) under the UN Convention of the Law of the Sea (UNCLOS) means that legally-binding obligations of nations are becoming increasingly ocean science-dependent. Successful execution of the IOC programme during the period of Medium-Term Strategy 2014–2021 and the IOC-led planning and coordination of the UN Decade of Ocean Science for Sustainable Development (2021–2030) brought IOC to the leading position in the work on systematic provision of ocean-related solutions to the global challenges of our time. However, the ability of IOC to deliver on its expanding mandate and respond both to the ambitions placed on the Decade and its Member States’ aspirations and needs will require, in turn, stronger support from governments, more authoritative decision-making capacity of IOC governing bodies, and adequate and reliable co-design of and investment in the whole value chain of modern ocean science.
    Beschreibung: OPENASFA INPUT
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Intergovernmental Oceanographic Commission of UNESCO ; Oceanographic Research ; Scientific programmes ; Member States ; Medium term strategy
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 30pp.
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  • 24
    Publikationsdatum: 2017-04-04
    Beschreibung: In this paper, we describe the 1809 eruption of Mt. Etna, Italy, which represents one historical rare case in which it is possible to observe details of the internal structure of the feeder system. This is possible thanks to the presence of two large pit craters located in the middle of the eruptive fracture field that allow studying a section of the shallow feeder system. Along the walls of one of these craters, we analysed well-exposed cross sections of the uppermost 15–20 m of the feeder system and related volcanic products. Here, we describe the structure, morphology and lithology of this portion of the 1809 feeder system, including the host rock which conditioned the propagation of the dyke, and compare the results with other recent eruptions. Finally, we propose the dynamic model of the magma behaviour inside a laterally-propagating feeder dyke, demonstrating how this dynamic triggered important changes in the eruptive style (from effusive/Strombolian to phreatomagmatic) during the same eruption. Our results are also useful for hazard assessment related to the development of flank eruptions, potentially the most hazardous type of eruption from basaltic volcanoes in densely urbanized areas, such as Mt. Etna.
    Beschreibung: Published
    Beschreibung: 1-11
    Beschreibung: 2T. Tettonica attiva
    Beschreibung: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Beschreibung: 3V. Dinamiche e scenari eruttivi
    Beschreibung: 4V. Vulcani e ambiente
    Beschreibung: 6A. Monitoraggio ambientale, sicurezza e territorio
    Beschreibung: N/A or not JCR
    Beschreibung: open
    Schlagwort(e): feeder dyke ; basaltic volcanoes ; flank eruptions ; Etna ; volcanic hazards ; sill ; volcanic rift ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas ; 04. Solid Earth::04.08. Volcanology::04.08.04. Thermodynamics ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk ; 05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 25
    Publikationsdatum: 2017-04-04
    Beschreibung: The 2011 Tohoku-oki (Mw 9.1) earthquake is so far the best-observed megathrust rupture, which allowed the collection of unprecedented offshore data. The joint inversion of tsunami waveforms (DART buoys, bottom pressure sensors, coastal wave gauges, and GPS-buoys) and static geodetic data (onshore GPS, seafloor displacements obtained by a GPS/acoustic combination technique), allows us to retrieve the slip distribution on a non-planar fault. We show that the inclusion of near-source data is necessary to image the details of slip pattern (maximum slip ,48 m, up to ,35 m close to the Japan trench), which generated the large and shallow seafloor coseismic deformations and the devastating inundation of the Japanese coast. We investigate the relation between the spatial distribution of previously inferred interseismic coupling and coseismic slip and we highlight the importance of seafloor geodetic measurements to constrain the interseismic coupling, which is one of the key-elements for long-term earthquake and tsunami hazard assessment.
    Beschreibung: Published
    Beschreibung: 385
    Beschreibung: 3.1. Fisica dei terremoti
    Beschreibung: N/A or not JCR
    Beschreibung: restricted
    Schlagwort(e): Tohoku ; Subduction ; Tsunami ; Inverse problem ; 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics ; 04. Solid Earth::04.07. Tectonophysics::04.07.06. Subduction related processes
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 26
    Publikationsdatum: 2017-04-04
    Beschreibung: In recent decades, geophysical investigations have detected wide magma reservoirs beneath quiescent calderas. However, the discovery of partially melted horizons inside the crust is not sufficient to put constraints on capability of reservoirs to supply cataclysmic eruptions, which strictly depends on the chemical-physical properties of magmas (composition, viscosity, gas content etc.), and thus on their differentiation histories. In this study, by using geochemical, isotopic and textural records of rocks erupted from the high-risk Campi Flegrei caldera, we show that the alkaline magmas have evolved toward a critical state of explosive behaviour over a time span shorter than the repose time of most volcanic systems and that these magmas have risen rapidly toward the surface. Moreover, similar results on the depth and timescale of magma storage were previously obtained for the neighbouring Somma-Vesuvius volcano. This consistency suggests that there might be a unique long-lived magma pool beneath the whole Neapolitan area.
    Beschreibung: Published
    Beschreibung: article 712
    Beschreibung: 2.3. TTC - Laboratori di chimica e fisica delle rocce
    Beschreibung: 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi
    Beschreibung: 3.6. Fisica del vulcanismo
    Beschreibung: 4.3. TTC - Scenari di pericolosità vulcanica
    Beschreibung: N/A or not JCR
    Beschreibung: open
    Schlagwort(e): magma ; campi flegrei caldera ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 27
    Publikationsdatum: 2017-04-04
    Beschreibung: The MW 8.8 mega-thrust earthquake and tsunami that occurred on February 27, 2010, offshore Maule region, Chile, was not unexpected. A clearly identified seismic gap existed in an area where tectonic loading has been accumulating since the great 1835 earthquake experienced and described by Darwin during the voyage of the Beagle. Here we jointly invert tsunami and geodetic data (InSAR, GPS, land-level changes), to derive a robust model for the co-seismic slip distribution and induced co-seismic stress changes, and compare them to past earthquakes and the pre-seismic locking distribution. We aim to assess if the Maule earthquake has filled the Darwin gap, decreasing the probability of a future shock . We find that the main slip patch is located to the north of the gap, overlapping the rupture zone of the MW 8.0 1928 earthquake, and that a secondary concentration of slip occurred to the south; the Darwin gap was only partially filled and a zone of high pre-seismic locking remains unbroken. This observation is not consistent with the assumption that distributions of seismic rupture might be correlated with pre-seismic locking, potentially allowing the anticipation of slip distributions in seismic gaps. Moreover, increased stress on this unbroken patch might have increased the probability of another major to great earthquake there in the near future.
    Beschreibung: Published
    Beschreibung: 173-177
    Beschreibung: 3.1. Fisica dei terremoti
    Beschreibung: 4.2. TTC - Modelli per la stima della pericolosità sismica a scala nazionale
    Beschreibung: JCR Journal
    Beschreibung: restricted
    Schlagwort(e): Source process ; Chile ; Tsunami ; Joint Inversion ; Seismic Gap ; 04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous ; 04. Solid Earth::04.07. Tectonophysics::04.07.05. Stress ; 04. Solid Earth::04.07. Tectonophysics::04.07.06. Subduction related processes ; 05. General::05.01. Computational geophysics::05.01.03. Inverse methods
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 28
    facet.materialart.
    Unbekannt
    Springer Berlin / Heidelberg
    Publikationsdatum: 2017-04-04
    Beschreibung: We use a kinematic GPS and laser range finder survey of a 200 m-long section of the Muliwai a Pele lava channel (Mauna Ulu, Kilauea) to examine the construction processes and flow dynamics responsible for the channel–levee structure. The levees comprise three packages. The basal package comprises an 80–150 m wide ′a′a flow in which a ∼2 m deep and ∼11 m wide channel became centred. This is capped by a second package of thin (〈45 cm thick) sheets of pahoehoe extending no more than 50 m from the channel. The upper-most package comprises localised ′a′a overflows. The channel itself contains two blockages located 130 m apart and composed of levee chunks veneered with overflow lava. The channel was emplaced over 50 h, spanning 30 May–2 June, 1974, with the flow front arriving at our section (4.4 km from the vent) 8 h after the eruption began. The basal ′a′a flow thickness yields effusion rates of 35 m3 s−1 for the opening phase, with the initial flow advancing across the mapped section at ∼10 m/min. Short-lived overflows of fluid pahoehoe then built the levee cap, increasing the apparent channel depth to 4.8 m. There were at least six pulses at 90–420 m3 s−1, causing overflow of limited extent lasting no more than 5 min. Brim-full flow conditions were thus extremely short-lived. During a dominant period of below-bank flow, flow depth was ∼2 m with an effusion rate of ∼35 m3 s−1, consistent with the mean output rate (obtained from the total flow bulk volume) of 23–54 m3 s−1. During pulses, levee chunks were plucked and floated down channel to form blockages. In a final low effusion rate phase, lava ponded behind the lower blockage to form a syn-channel pond that fed ′a′a overflow. After the end of the eruption the roofed-over pond continued to drain through the lower blockage, causing the roof to founder. Drainage emplaced inflated flows on the channel floor below the lower blockage for a further ∼10 h. The complex processes involved in levee–channel construction of this short-lived case show that care must be taken when using channel dimensions to infer flow dynamics. In our case, the full channel depth is not exposed. Instead the channel floor morphology reflects late stage pond filling and drainage rather than true channel-contained flow. Components of the compound levee relate to different flow regimes operating at different times during the eruption and associated with different effusion rates, flow dynamics and time scales. For example, although high effusion rate, brim-full flow was maintained for a small fraction of the channel lifetime, it emplaced a pile of pahoehoe overflow units that account for 60% of the total levee height. We show how time-varying volume flux is an important parameter in controlling channel construction dynamics. Because the complex history of lava delivery to a channel system is recorded by the final channel morphology, time-varying flow dynamics can be determined from the channel morphology. Developing methods for quantifying detailed flux histories for effusive events from the evidence in outcrop is therefore highly valuable. We here achieve this by using high-resolution spatial data for a channel system at Kilauea. This study not only indicates those physical and dynamic characteristics that are typical for basaltic lava flows on Hawaiian volcanoes, but also a methodology that can be widely applied to effusive basaltic eruptions.
    Beschreibung: Published
    Beschreibung: 459-474
    Beschreibung: 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani
    Beschreibung: 1.10. TTC - Telerilevamento
    Beschreibung: 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Lava channel ; Levees ; Effusion rates ; Flow dynamics ; 04. Solid Earth::04.04. Geology::04.04.08. Sediments: dating, processes, transport ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks ; 04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 29
    Publikationsdatum: 2017-04-04
    Beschreibung: On 28 December 2002, new vents opened on the flanks of Stromboli, just below the summit craters, interrupting the persistent activity of the volcano with a 7-month-long effusive eruption. We here report on the plagioclase size distribution (PlgSD) in lava samples collected following the chronology of the 2002–2003 eruption. Data reveal a linear PlgSD similar to that found in samples of normal Stromboli activity, indicating that the switch from Strombolian explosive to effusive activity is not associated with changes in texture. Nevertheless, the crystal size distribution slopes and intercepts exhibit slight sinusoidal temporal variations that are here ascribed to a magma supply mechanism able to induce “resonance” in the crystal size distribution, with an amplitude that depends on the supply rate.
    Beschreibung: Published
    Beschreibung: 631-641
    Beschreibung: 2.3. TTC - Laboratori di chimica e fisica delle rocce
    Beschreibung: 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Plagioclase ; Crystal size distribution ; Stromboli ; 2002–2003 eruption ; Magma supply rate ; Effusive activity ; Crystallization ; 04. Solid Earth::04.04. Geology::04.04.11. Instruments and techniques ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks ; 04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
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  • 30
    Publikationsdatum: 2017-04-04
    Beschreibung: During its 1800-year-long persistent activity the Stromboli volcano has erupted a highly porphyritic (HP) volatile-poor scoriaceous magma and a low porphyritic (LP) volatile-rich pumiceous magma. The HP magma is erupted during normal Strombolian explosions and lava effusions, while the LP one is related to more energetic paroxysms. During the March–April 2003 explosive activity, Stromboli ejected two typologies of juvenile glassy ashes, namely highly vesicular LP shards and volatile-poor HP shards. Their textural and in situ chemical characteristics are used to unravel mutual relationships between HP and LP magmas, as well as magma dynamics within the shallow plumbing system. The mantle-normalized trace element patterns of both ash types show the typical arc-lava pattern; however, HP glasses possess incompatible element concentrations higher than LP glasses, along with Sr and Eu negative anomalies. HP shards are generally characterized by higher Li contents (to ~20 ppm) and lower δ7Li values (+1.2 to −3.8‰) with respect to LP shards (Li contents of 7–14 ppm and δ7Li ranging between +4.6 and +0.9‰). Fractional crystallization models based on major and trace element compositions, combined with a degassing model based on open-system Rayleigh distillation and on the assumption that melt/fluidDLi 〉 1, show that abundant (~30%) plagioclase precipitation and variable degrees of degassing can lead the more primitive LP magma to evolve toward a differentiated (isotopically lighter) HP magma ponding in the upper conduit and undergoing slow continuous degassing-induced crystallization. This study also evidences that in March 2003 Stromboli volcano poured out a small early volume of LP magma that traveled slower within the conduit with respect to later and larger volumes of fast ascending LP magma erupted during the April 5 paroxysm. The different ascent rates and cooling rates of the two LP magma batches (i.e., pre- and post-paroxysm) resulted in small, but detectable, differences in their chemical signatures. Finally, this study highlights the high potential of in situ investigations of juvenile glassy ashes in petrologic and geochemical monitoring the volcanic activity and of Li isotopes as tracers of degassing processes within the shallow plumbing system.
    Beschreibung: In press
    Beschreibung: 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani
    Beschreibung: 2.3. TTC - Laboratori di chimica e fisica delle rocce
    Beschreibung: 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): Stromboli ; Volcanic ash ; Lithium isotopes ; Degassing ; induced crystallization ; Petrologic monitoring ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology ; 04. Solid Earth::04.04. Geology::04.04.07. Rock geochemistry ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 31
    Publikationsdatum: 2017-04-04
    Beschreibung: Dikes within stratovolcanoes are commonly expected to have radial patterns. However, other patterns may also be also found, due to regional stresses, magmatic reservoirs, topographic variations. Here we investigate dike patterns within volcanic edifices, by studying dike and fissure complexes at Somma-Vesuvius and Etna (Italy) and using analogue models. At the surface, the dikes and fissures show a radial configuration. At depths of tens to several hundreds of m, in areas exposed by erosion, tangential and oblique dikes are also present. Analogue models indicate that dikes approaching the flanks of cones, regardless of their initial orientation, reorient to become radial (parallel to the maximum gravitational stress). This reorientation is a significant process in shallow magma migration and may also control the emplacement of dike-fed fissures reaching the lower slopes of the volcano.
    Beschreibung: In press
    Beschreibung: 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani
    Beschreibung: 3.2. Tettonica attiva
    Beschreibung: 3.5. Geologia e storia dei sistemi vulcanici
    Beschreibung: 3.6. Fisica del vulcanismo
    Beschreibung: 4.3. TTC - Scenari di pericolosità vulcanica
    Beschreibung: JCR Journal
    Beschreibung: open
    Schlagwort(e): dike ; Etna ; Somma-Vesuvius ; analogue models ; 04. Solid Earth::04.01. Earth Interior::04.01.02. Geological and geophysical evidences of deep processes ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology ; 04. Solid Earth::04.07. Tectonophysics::04.07.99. General or miscellaneous ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas ; 04. Solid Earth::04.08. Volcanology::04.08.04. Thermodynamics ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk ; 05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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