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Post-Little Ice Age development of coast in the locality of Kapp Napier, central Spitsbergen, Svalbard archipelago
Marine Geodesy ( IF 1.6 ) Pub Date : 2019-10-16 , DOI: 10.1080/01490419.2019.1674429
Jan Kavan 1
Affiliation  

Abstract Changes in the position of the shore in the vicinity of Kapp Napier in central Svalbard was described. The overall advance of the shore was probably related to high input of the sediment material originating from erosion of the coastal areas south of the Kapp Napier locality and high input of material from adjacent glacifluvial system of Nordenskiöld glacier with its marginal water streams. Fast evolution of glacier retreat related processes after the Little Ice Age was a secondary driver of the dynamic changes in the central Svalbard coastal areas especially in the first half of the 20th century. The highly dynamic longshore currents in the area altogether with still ongoing glacio-isostatic uplift played an important role in the process as well. The most active parts of the shore experienced advance of almost 100 m since 1908 to 2009. On the other hand, a small part of the coast retreated of about 20 m. Most of the study area experienced aggradation (65%), 30% of the coast was stable and about 5% of the coast has undergone minor retreat. The maximum aggradation rate of 0.96 m/year corresponds well with similar sites in the vicinity. Graphical Abstract

中文翻译:

斯瓦尔巴群岛斯匹次卑尔根中部 Kapp Napier 地区小冰河时代后海岸发展

摘要 描述了斯瓦尔巴群岛中部 Kapp Napier 附近海岸位置的变化。海岸的整体推进可能与源自 Kapp Napier 地区南部沿海地区侵蚀的沉积物物质的大量输入以及来自 Nordenskiöld 冰川及其边缘水流的相邻冰川河流系统的大量物质输入有关。小冰河时代之后冰川退缩相关过程的快速演变是斯瓦尔巴群岛中部沿海地区动态变化的次要驱动因素,尤其是在 20 世纪上半叶。该地区高度动态的沿岸流以及仍在进行的冰川等静压抬升也在这一过程中发挥了重要作用。自 1908 年至 2009 年,海岸最活跃的部分经历了近 100 m 的推进。另一方面,一小部分海岸后退约 20 m。大部分研究区经历了加化(65%),30%的海岸是稳定的,大约5%的海岸发生了轻微的后退。0.96 m/年的最大加成速率与附近的类似地点很好地对应。图形概要
更新日期:2019-10-16
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