Green Deal Data Space | GREAT Project’s Post

What drives large-scale extensional strain in southern Tibet? In our latest collaborative study, we tackle this key question by combining Sentinel-1 InSAR and GNSS data to produce high-resolution maps of 3D velocities and strain rates across Southern Tibet. We focused on seven major rift zones, uncovering the details of how the region is extending at a total rate of 18.4 mm/yr. This work wouldn’t have been possible without the fantastic collaboration between researchers from the China Earthquake Administration, Nanjing University, and the Computational Geophysics Lab at Nanyang Technological University Singapore, Earth Observatory of Singapore, and NTU Asian School of the Environment. Check out our paper published in Geophysical Research Letters: https://lnkd.in/gxXkbJdw

A very much needed effort considering the importance of #geodesy and all its related disciplines in #geospatialengineering for the future of humankind in view of the accelerating environmental changes, but also the dramatic reduction in the number of available experts and students. Whether it is the #digitalization, #digitization of our environment, built or natural, more #sustainability, better usage of #naturalresources or increased #resillience by a better understanding the natural, geophysical, atmospheric, ..., processes on our home planet Earth, nearby in space or on other bodies of our Solar system, geodesists and geospatial engineers, i.e. those who measure, capture and model, are at the core of all subsequent science.

🌋 The FAIR-EASE project partner and Volcano Space Observatory Pilot coordinator, Dr. Marie Boichu from CNRS/University of Lille 1 Sciences and Technology, will be the featured speaker at today's IAVCEI - Int. Assoc. of Volcanology & Chemistry of the Earth's Interior Commission on the Chemistry of Volcanic Gases (CCVG) monthly virtual seminar. 🎙️ 👩🔬 Dr. Boichu will present the #VolcPlume web platform, an innovative tool for near-real time monitoring of volcanic emissions and atmospheric hazards. This cutting-edge platform enables comprehensive analysis of volcanic plumes using diverse satellite and ground-based observations, offering unprecedented insights into volcanic gas and particle dynamics. Participants will gain valuable knowledge about tracking atmospheric chemistry modifications, air quality degradation, aviation risks, and potential climate impacts. Drawing from her expertise, Dr. Boichu will showcase case studies from eruptions in La Palma, La Réunion, Saint-Vincent, and Hunga Tonga, providing a deep dive into advanced volcanic research methodologies. ❗ Join this seminar #today, 🗓️ Friday, November 29, at 2 PM UTC (3PM CET) 🔴 Broadcast link: https://lnkd.in/dc-nEjUr

Glad for my first attendance at the European Geosciences Union (EGU) General Assembly 2024 and and to share the activities carried out in the framework of the research grant "Application of new methods and techniques based on the use of multimission/multifrequency SAR data for the analysis of slow kinematic landslides", which is part of the activity carried out by the Department of Earth Sciences of the Università degli Studi di Firenze and IREA CNR within the project funded by Agenzia Spaziale Italiana "DInSAR - 3M". The progress of the work led to the development of a procedure for the quantitative assessment of the physical vulnerability of buildings exposed to slow moving landslides, exploiting InSAR data obtained from the processing of large stacks of radar images acquired by the Sentinel-1 satellite constellation through the P-SBAS processing chain. The result is the development of fragility and vulnerability curves for masonry buildings in the northern Apennines (Italy). Here the links of the abstract: https://lnkd.in/dMdeQ9-W

【Swift XRT Analysis of Type II-P Supernova SN 2008ij】 Full article: https://lnkd.in/ghWwpMuP (Authored by SH. M. Shehata, et al., from National Research Institute of Astronomy and Geophysics (NRIAG), Egypt.) #Xray_observations of supernovae provide a unique opportunity to explore their early evolution and the underlying physical processes driving their explosions. This paper presents a study of X-ray properties and evolution of the SN2008ij Type II #supernova, which exploded in the nearby galaxy NGC 6643 in the constellation Draco.  

📄 Open access paper : “Catalogue of Source Mechanisms and Overview of Present-Day Stress Fields in the Western Region of the Africa–Eurasia Plate Boundary” by Farida Ousadou, abdelhakim Ayadi from the Center of Research in Astronomy, Astrophysics, and Geophysics (#CRAAG) and Mourad Bezzeghoud from the University of Évora. 🌍📖💡 The study delves into the complex deformation along the plate boundary between Africa and Eurasia, providing an updated scheme of the tectonic stress direction from the Azores Archipelago to the Tunisian Atlas. It further proposes a new sketch of the present stress field along the western part of the Eurasia–Africa plate boundary. This comprehensive research serves as a valuable resource for those interested in geodynamics, stress fields, and seismicity. 🔍 Key Insights: 1. The faulting mechanism changes from normal faulting at the Mid-Atlantic Ridge to thrust and strike-slip faulting in the Ibero-Maghreb region. 2. The study area shows the occurrence of NW‒SE convergence between the two plates, with anticlockwise rotation. 3. The inversion considers only the earthquake mechanisms of events 4.0≤M≤8.4, excluding the aftershocks of strong events. 4. The obtained stress field shows an extensional regime in the Mid-Atlantic Ridge, Terceira Ridge and Azores Islands and a strike-slip regime along the Gloria Fault, Gorringe Bank, and Gulf of Cadiz, to southern Spain. The stress regime becomes compressional in western Algeria, with strike-slip in eastern and southern Tunisia and an exception in northern Tunisia, where the stress exhibits a reverse rupture process. 🔗 Paper Link: https://lnkd.in/ddmk_bTE #StressFields #Africa #Eurasia #PlateBoundary #FaultPlaneSolutions #Seismicity #Geodynamics #FaultingMechanism #MidAtlanticRidge #Ibero #MaghrebRegion #Faulting #ThrustFaulting #ExtensionalRegime #CompressionalRegime #Geomechanics #Earthquake #Geotechnical #Engineering #Algeria #Craag #Portugal #Spain

I've never published anything about my personal experience since I've had this account. Now that I'm nearing the end of my training, I'd like to share with you some snapshots of the highlights of 2023/2024. follow me 😇 I'll just introduce by saying that I arrived in FRANCE in August 2023, for the Master 2 of "Geophyics and Earth Imaging", an International Parcours of the PhITEM at University of Grenoble Alpes, after My Geophysics & Geoexploration Master in CAMEROON, at University of Yaoundé 1.

We are excited to bring you the very first European Geosciences Union (EGU) and American Geophysical Union #Geodesy Division joint #webinar, as part of the AGU series "The World Needs More Geodesists." 🌍 🛰️ This webinar will focus on the European geodesy landscape, exploring the diverse roles geodesists play both inside and outside of academia. Building on previous webinars highlighting perspectives from the U.S. and Australia, this session will explore the opportunities available in Europe and discuss strategies/ways to attract more people/students to the field. Join us as we highlight career pathways and explore how we can promote geodesy to the next generation. Speakers: Tim Wright, Professor of Satellite Geodesy and Director of NERC COMET, and co-founder of SatSense; Christian Siemes, Assistant Professor at TU Delft with previous experience at ESA and RHEA Group; Manon Dalaison, Maître de Conférences in Geophysics at IPGP. https://lnkd.in/geZ8uN2g

📣 The second ILGE Transnational Access (TNA) and National Open Access (NOA) call is now open! The ILGE TNA/NOA program offers students, researchers and professors the opportunity to receive scientific, financial and logistical support to carry out their research activities in top Italian laboratories. The ILGE (Integrated Laboratories for Geosciences and Environment) network is part of #MEET project(Monitoring Earth's Evolution and Tectonics), supported by #PNRR program. 🌎 The infrastructure network involves four important Italian institutions: the Istituto Nazionale di Geofisica e Vulcanologia, Università Roma3, Consiglio Nazionale delle Ricerche and #OGS, integrating different disciplines Earth sciences, including analog modeling, experimental volcanology, geophysics, tectonics, paleomagnetism, geochemistry, microscopy, sedimentology and investigations into site effects. 🔬 The TNA/NOA call is aimed at promoting barrier-free science and scientific innovation by facilitating access to the main national structures for researchers at all stages of their career. The ILGE TNA/NOA program allows physical and remote access to Italian laboratory facilities to national, European and non-European entities, providing the logistical, technological and scientific support and specific training necessary to use the services provided by the facility. Access to the laboratories is free and the ILGE TNA/NOA program covers the costs of physical access activities (i.e., travel, accommodation and subsistence) or remote access (i.e., shipping of samples). Applications can be submitted on this portal at this link ➡️ https://ilge.ct.ingv.it/ 📌 You can consult the ILGE TNA/NOA guidelines and FAQs for detailed information on the application procedures and eligibility criteria. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://lnkd.in/dHdmhCKJ 🔹 Application submission period: from 1 December 2024 to 31 January 2025 🔹 Period of access to the ILGE network laboratories: from 1 April 2025 to 31 August 2025.

Ground deformation monitoring with #DAS is a great application of fiber optic sensing. DAS is a very sensitive distributed strain sensor. In this #landslide example there are two key sensing components. First is an interrogator unit that has a very low noise floor below 0.5Hz. At these low frequencies is where you will see largest variations in the IU performance across vendors. The second part of the sensing system that Susanne Ouellet is highlighting is the choice of the cable. Even though both loose tube, and tight buffered fiber see the strain signal, the difference in signal quality is quite important. We now use these special cables to monitor ground deformation in #levees, #TSF’s, some #pipelines, etc. The overall sensing system is quite critical to make sure that the real time diagnostics and interpretation are successful. Thanks Susanne for sharing this work! LUNA Innovations OptaSense https://lnkd.in/gre3bVmk