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22:41:18, 6 August 2010 +
This is a movie of sea ice pushing up the … This is a movie of sea ice pushing up the small drillling island Oooguruk on June 23rd, 2009. Oooguruk is man-made, it is located just offshore the Colville delta along the Beaufort Sea of Alaska. </br>The island was constructed as a base for a drill platform in 2006, it sits in ~4-5 ft of water depth. Its sides are at least 4,5m above sea level and even up to 9m.</br></br>The process is called ice encroachment; both due to 'ride-up' and 'pile-up'.</br>The ice blocks are over 4-5m, the gravel bags armouring the island can be seen, those are larger than 2 m. The ice pushes itself higher up against the side of the island. The ice push results likely from far-field movement. Nearshore sea ice in this region stayed well into July 2009, but movement of the ice already starts much earlier.nt of the ice already starts much earlier. +
Irina +
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Overeem +
Ooguruk Island +
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22:29:49, 21 June 2017 +
sea ice +
Movie +
sea ice push unto artificial island +
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Movement of sea ice unto a structure is ca … Movement of sea ice unto a structure is called ice encroachment. This occurs in two dfferent modes: 'ride up' and 'pile-up'. Ride-up occurs when the ice is driven up the side slope intact, pile-up ocurs when the ice fails and buckles and bends into individual blocks. </br></br>It has been assumed that pile up would be more prevalent in shallow water, due to grounding of the ice and due to the fact that a river is very closeby. The river discharge starts draining unto the sea ice by May-June and makes the sea ice more weak and vulnerable for break-up.ice more weak and vulnerable for break-up. +
June 23rd, 2009 +
Image:Oogurukseaice.png +
-Ume7Cj8bRM +
