#INTERNET ICEBERG MEANING UPDATE#

Subsea risk update using high resolution iceberg profiles. An Introduction to Geotechnical Engineering (Prentice-Hall, 1981). Submarine slumping and the initiation of turbidity currents. in Submarine Mass Movements and Their Consequences, Advances in Natural and Technological Hazards Research (eds Krastel, S. First wide-angle view of channelized turbidity currents links migrating cyclic steps to flow characteristics. The depositional signature of cyclic steps: a late Quaternary analogue compared to modern active delta slopes. Retreat pattern of glaciers controls the occurrence of turbidity currents on high-latitude fjord deltas (eastern Baffin Island). Subtropical iceberg scours and meltwater routing in the deglacial western North Atlantic. Iceberg scouring in Scoresby Sund and on the East Greenland continental shelf. Geotechnical aspects of seabed pits in the Grand Banks area. in Current Research Part B: Eastern and Atlantic Canada Paper 90, 43вЂ“48 (Geological Survey of Canada, 1990).Д¬lark, J. Gravitational collapse of Mount EtnaвЂ™s southeastern flank. Timing and frequency of large submarine landslides: implications for understanding triggers and future geohazard. The sequence of events around the epicentre of the 1929 Grand Banks earthquake: initiation of debris flows and turbidity current inferred from sidescan sonar. Earthquakes drive large-scale submarine canyon development and sediment supply to deep-ocean basins. Near-synchronous and delayed initiation of long run-out submarine sediment flows from a record-breaking river flood, offshore Taiwan. Turbidity currents and submarine slumps, and the 1929 Grand Banks earthquake. Onset of submarine debris flow deposition far from original giant landslide. Submersible observations of an iceberg pit and scour on the Grand Banks of Newfoundland. Keel depths of modern Antarctic icebergs and implications for sea-floor scouring in the geological record. Large-scale experiments into the tsunamigenic potential of different iceberg calving mechanisms. Reduced survival of Antarctic benthos linked to climate-induced iceberg scouring. Antarctic iceberg impacts on future Southern Hemisphere climate. Schloesser, F., Friedrich, T., Timmermann, A., DeConto, R.

Rapid response of Helheim Glacier in Greenland to climate variability over the past century. Changes in the velocity structure of the Greenland Ice Sheet. This process represents an additional source of marine geohazards, especially if climate change leads to increased iceberg discharge. These results imply that icebergs originating from the Arctic, Greenland and Antarctica are hazards thousands of kilometres away from their original source and can affect continental slopes by triggering submarine landslides. Geotechnical data from a nearby sediment core indicate that the vertical loading induced by the iceberg grounding and capsizing is sufficient to trigger the observed landslide. This landslide is shown to be closely associated with recently formed iceberg pits at its headscarp carved by an iceberg that grounded and that capsized in the fjord in early September 2018. Using repeat bathymetric surveys from multibeam echo sounders, we investigate the cause of a submarine landslide that occurred in Southwind Fjord, Baffin Island, between September 2018 and September 2019. Here, we provide evidence that icebergs can affect the seafloor at depths greater than their keel depth by triggering submarine landslides. Icebergs are also known to gouge the seafloor in water depths limited by their keel depth, thus representing a hazard to subsea infrastructure. Iceberg discharge influences ocean circulation, affects climate and increases global sea level.

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