submergent landforms 0.0 / 5 ? GeographyCoastal environmentsA2/A-levelOCR Created by: beaw18Created on: 24-04-19 11:38 climate change and sea level rise increase in global temperature leads to melting of ice storing lare quantities of water melting causes volume of water in the ocean to increase temperature rise increases size of water molecules which increases volume 1 degree rise in global temperatures leads to sea level rise of 2 m 1 of 5 rias submerged river valleys formed as the sea rises lowest part of river course and flood plains may be fully submerged higher lands at tops of valleys exposed cross section - shallow water becoming increasingly deep towards the centre 2 of 5 fjords submerged glacial valleys steep, cliff-like valley sides water is uniformly deep, often reaching over 1000 m common in countries such as Norway 3 of 5 shingle beaches when sea level falls, 'new land' emerges from the sea sediment accumulates on surface which has been deposited by rivers, meltwater streams and low-energy waves wave action pushes the sediments onshore some of sediments forms beaches at base of cliffs elsewhere may form tombolos or bars 4 of 5 modification of landforms rias and fjords may be modified by wave processes by the present day sea level also affected by sub-ariel processes and weathering may result in the reduction of steepness of fjord sides water depths in fjords and rias will increase marine erosion will increase due to stormier conditions and larger waves shingle beaches are especially vulnerable to modification: longshore drift etc 5 of 5
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