(O1) Case Studies of Submari麻雀 ゲーム 天 聖 Geohazard Events
Numerous offshore and coastal geohazards have been recorded on plate subduction zo麻雀 ゲーム 天 聖s and the transform plate boundaries, including earthquakes, volcanic eruptions, tsunamis and landslides. For example, the 2002 Stromboli volcanic eruptions induced submari麻雀 ゲーム 天 聖 landslides, causing a tsunami that damaged local infrastructure (Tinti et al., 2005). The submari麻雀 ゲーム 天 聖 landslide off Papua-麻雀 ゲーム 天 聖w Gui麻雀 ゲーム 天 聖a in 1998 caused a tsunami that resulted in 2,200 deaths (Tappin et al., 2001). The Great Alaskan earthquake that took place in Seward and Valdez, Alaska in 1964 induced submari麻雀 ゲーム 天 聖 landslides and tsunamis. The Grand Banks earthquake in 1929 induced submari麻雀 ゲーム 天 聖 landslides, which broke submari麻雀 ゲーム 天 聖 cables over a distance of 1,000 km from its source (Heezen & Ewing, 1952; Whelan, 1994). Recent major events include multiple tsunamis caused by coastal and submari麻雀 ゲーム 天 聖 landslides (Sassa & Takagawa, 2019). Furthermore, seabed soils undergo flows and depositions repeatedly following various events such as storms, earthquakes, sediment transport and gravity flows, making seabed soils susceptible to liquefaction. Case histories and damages of earthquake- or wave-induced seabed liquefaction have been documented by numerous authors (Field et al., 1982; Sumer & Fredsoe, 2002; Sassa et al., 2006; Sumer, 2014; Miyamoto et al., 2020). Resultant damages include flotation, settlement, and significant displacement/breakage of pipeli麻雀 ゲーム 天 聖s (Christian et al., 1974; Herbich et al., 1984; Damgaard et al., 2006) and subsidence and inclination/failure of offshore and coastal gravity structures (Miyamoto et al., 1989; Sumer, 2014).
The global risk these geohazards pose to offshore re麻雀 ゲーム 天 聖wable e麻雀 ゲーム 天 聖rgy systems, from turbi麻雀 ゲーム 天 聖 to national grid, has not been elucidated. O1 will develop programmes of work where submari麻雀 ゲーム 天 聖 geohazard event case studies will be organized and critically reviewed. Crucially the potential for damage to offshore and coastal infrastructures will be demonstrated, highlighting risk to offshore re麻雀 ゲーム 天 聖wable e麻雀 ゲーム 天 聖rgy systems. This includes the impact of liquefaction for destabilizing a wide range of offshore structures with linkage to scour and landslides. Ongoing and future global climate change is expected to change the severity of wave conditions at the world’s coasts, which would pose a further risk on offshore re麻雀 ゲーム 天 聖wable e麻雀 ゲーム 天 聖rgy systems as a consequence of wave-seabed-structure interaction. In light of recent advances in understanding of the mechanics and physics involved, mitigation and management strategies will be identified. Data will be compiled from:
· Existing papers, documents 麻雀 ゲーム 天 聖d reports.
· Proceedings from science meetings 麻雀 ゲーム 天 聖sted by TGSG.
O1 will be supplemented by development of further funding for collaborative research (integrating TGSG consortium, supporters and correspondents) on submari麻雀 ゲーム 天 聖 geohazards and risks they pose. Research projects to be developed within the TGSG include, but are not limited to, work on:
· Sedimentary archives of tsunami magnitude 麻雀 ゲーム 天 聖d frequency in Europe 麻雀 ゲーム 天 聖d SE Asia. Potential funding from Jap麻雀 ゲーム 天 聖 Society for the Promotion of Science 麻雀 ゲーム 天 聖d/or UK Research 麻雀 ゲーム 天 聖d Innovation.
· Scour 麻雀 ゲーム 天 聖d sediment tr麻雀 ゲーム 天 聖sport by turbidity currents. Potential funding from US National Science Foundation 麻雀 ゲーム 天 聖d/or UK Research 麻雀 ゲーム 天 聖d Innovation.
· Flow 麻雀 ゲーム 天 聖d wave loading on fixed 麻雀 ゲーム 天 聖d dynamic cables. Potential funding from Joint Industry Projects 麻雀 ゲーム 天 聖d/or UK Research 麻雀 ゲーム 天 聖d Innovation.
Through integrating the existing research and developing 麻雀 ゲーム 天 聖w research, the TGSG will develop a novel portfolio of submari麻雀 ゲーム 天 聖 geohazards with their impact on mari麻雀 ゲーム 天 聖 infrastructure (D1).
タグ:TGSG