iberian node
DESCRIPTION
IBERIAN NODE. Jorge Miguel Miranda University of Lisbon - IDL [email protected]. Objective s and framework. The Gulf of Cadiz, south of Algarve was chosen as an ESONET node, due to its interest to monitor Geo-hazards, Mud Volcanoes and Ocean Dynamics. Objective s and framework. - PowerPoint PPT PresentationTRANSCRIPT
5-7 Oct.2009 All Regions Workshop #2
IBERIAN NODE
Jorge Miguel MirandaUniversity of Lisbon - IDL
5-7 Oct.2009 All Regions Workshop #2
Objectives and frameworkThe Gulf of Cadiz, south of Algarve was chosen as an ESONET node, due to its interest to monitor Geo-hazards, Mud Volcanoes and Ocean Dynamics.
Objectives and framework
The seismicity of this area is the result of the tectonic activity along the Europe-Africa plate boundary.
5-7 Oct.2009 All Regions Workshop #2
Objectives and framework
5-7 Oct.2009 All Regions Workshop #2
From an oceanographic point of view the Gulf of Cadiz is of paramount importance for the study of the Mediterranean Outflow Water (MOW) because it affects the deep-water circulation on globalscale.
Objectives and framework
5-7 Oct.2009 All Regions Workshop #2
Objectives and frameworkExtensive mud volcanism, pockmarks, mud diapirism and carbonate chimneys related to hydrocarbon rich fluid venting are observed throughout the Gulf of Cadiz. Up to now 18 mud volcanoes, occurring at water depths between 700 and 3500 m, have been confirmed in this area by coring.
5-7 Oct.2009 All Regions Workshop #2
Scientific Questions
• (i) Set-up and operation of a monitoring seismic network in the Gulf of Cadiz for the evaluation and mitigation of natural hazards,
• (ii) monitor the temporal variation of the warm (13°) and saline (>37 g/l) Mediterranean Outflow Water (MOW); since the MWO is affecting the deep-water circulation on global scale its variations, measured in the Gulf of Cadiz, may anticipate climate change at the scale of tens of years;
• (iii) investigate the relative role of climate-controlled oceanographic variability and tectonic activity in the episodic formation and activity of fluid venting structures;
• (iv) study of the ecosystems associated with gas.
Proposed Location
5-7 Oct.2009 All Regions Workshop #2
5-7 Oct.2009 All Regions Workshop #2
Regional Studies
5-7 Oct.2009 All Regions Workshop #2
Local Studies
Location
5-7 Oct.2009 All Regions Workshop #2
5-7 Oct.2009 All Regions Workshop #2
Basic Design
5-7 Oct.2009 All Regions Workshop #2
GEOSTART deployment
NEAREST Abyssal Station25 August 200722h 14 min TUC3207 m, 150 km SW CSV
Cooperation with NEAMTWS
Seismic criteria for ATLANTIC Advisories
Information BulletinNo tsunami potential= 5.5All Locations= 100 km
Information BulletinNo tsunami potential5.5Inland(> 30 km)
Ocean-wide Tsunami Warning
Potential for a destructive ocean-wide tsunami > 1000 km
> 7.9
Regional Tsunami WarningOcean-wide Tsunami Watch
Potential for a destructive regional tsunami < 1000 km
7.5 to 7.9
Regional Tsunami Watch
Potential for a regional tsunami < 1000 km
7.0 to 7.5
Information BulletinSmall potential for a destructive local tsunami
5.5 to 7.0Under or very near the sea(< 30 km)
< 100 km
Bulletin TypeTsunami Potential(Mw)LocationDepth
Information BulletinNo tsunami potential= 5.5All Locations= 100 km
Information BulletinNo tsunami potential5.5Inland(> 30 km)
Ocean-wide Tsunami Warning
Potential for a destructive ocean-wide tsunami > 1000 km
> 7.9
Regional Tsunami WarningOcean-wide Tsunami Watch
Potential for a destructive regional tsunami < 1000 km
7.5 to 7.9
Regional Tsunami Watch
Potential for a regional tsunami < 1000 km
7.0 to 7.5
Information BulletinSmall potential for a destructive local tsunami
5.5 to 7.0Under or very near the sea(< 30 km)
< 100 km
Bulletin TypeTsunami Potential(Mw)LocationDepth
All Regions Workshop #25-7 Oct.2009
5-7 Oct.2009 All Regions Workshop #2
Next steps and After the DM• Final design of the Node Observatory;• Re-deployment of the existing
infrastructure on the forthcoming years;• Cabled observatory after 2012?• Cooperation with ARGO / EPOS
5-7 Oct.2009 All Regions Workshop #2
Outreach initiatives
• Within ESONET outreach initiatives focus will be made on the Lisbon Aquarium.
5-7 Oct.2009 All Regions Workshop #2
Acknowledgements• GEOSTAR team, for providing basic
observatory hardware;• All Portuguese and Spanish teams
involved in the operation;• Esonet NoE members thank the EC for
the FP6 contract # 36851 signed in Mar. 2007, as part of the EC Global Change and Ecosystems priority;
5-7 Oct.2009 All Regions Workshop #2
THANKS !