Abstract The southeast coastline of the Barents Sea in the area of the Varandey settlement is characterized by warm permafrost. Coastal studies conducted since the early 1980s have shown coastal retreat with average erosion rates of up to 2–5 m/yr from 1969 to 1987 at different locations in the area. The present study summarizes long-term (1951–2013) observations of environmental forcing in the area, and estimations of retreat rates based on recent fieldwork (2011–2013) and remote sensing studies (1961–2012). Such data is of primary importance for any infrastructure developments in the study area. The coastline was divided into three conditional geographical sectors: Pesyakov, Varandey, and Medynskiy. It was found that the average erosion rate in eroding parts of Pesyakov sector was 2 m/yr, in the western part of Varandey sector—1.8 m/yr, and in the entire Medynskiy sector—2.3 m/yr over the last 54 years. Remote sensing observations documented the destruction of numerous buildings in the coastal zone of the Novyy Varandey settlement in 2004–2012. A striking coastal bluff recession of 19.6 m/yr over the 15-km-long coastline in Medynskiy was observed between 2010 and 2011, following a storm surge in the area in the summer of 2010. Fluctuations of environmental forcing (air temperatures, wave energy factor, significant wave height, and sea level) were observed in the Varandey area in 1979–2013. The long-term evolution of environmental forcing exhibits an increasing trend. The increase (0.6–4.8 m/yr) of average long-term erosion rates in the Medynskiy sector from 1961 to 2013 followed the evolution of environmental forcing in 1979–2013. Different coastal erosion responses and processes varying from a stable situation to active erosion due to mechanical wave action, thermal abrasion, thermal denudation, or a combination of these processes were identified in the Varandey area.

中文翻译：

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巴伦支海瓦兰迪地区五十四年的海岸侵蚀和水文气象参数

摘要 巴伦支海东南海岸线位于瓦兰迪聚落区，以温暖的多年冻土为特征。自 1980 年代初以来进行的海岸研究表明，从 1969 年到 1987 年，该地区不同地点的海岸退缩率高达 2-5 m/年。本研究总结了该地区环境强迫的长期（1951-2013 年）观测结果，以及基于近期实地工作（2011-2013 年）和遥感研究（1961-2012 年）的后退率估计。此类数据对于研究区域的任何基础设施开发都至关重要。海岸线被划分为三个有条件的地理区域：Pesyakov、Varandey 和 Medynskiy。研究发现，Pesyakov 扇区侵蚀部分的平均侵蚀速率为 2 m/yr，Varandey 扇区西部为 1.8 m/yr，在整个 Medynskiy 部门——过去 54 年中为 230 万/年。遥感观测记录了 2004 年至 2012 年 Novyy Varandey 定居点沿海地区的许多建筑物遭到破坏。2010 年至 2011 年间，在梅登斯基 15 公里长的海岸线上观察到了 19.6 米/年的惊人沿海悬崖衰退，这是继 2010 年夏季该地区发生风暴潮之后。 环境强迫的波动（气温、波浪能） 1979-2013 年在 Varandey 地区观测到因子、显着波高和海平面）。环境强迫的长期演变呈现出增加的趋势。从 1961 年到 2013 年，梅登斯基地区平均长期侵蚀率的增加（0.6-4.8 米/年）是随着 1979-2013 年环境强迫的演变而增加的。