The effects of Arctic sea fog on glacier melt

北冰洋海冰的破裂会产生雾，这通常是夏季海洋和沿海地区上空的主要云层类型。雾在内陆消散了。最近快速的气候变化影响了北冰洋和陆地上的云量，但尚不清楚这是如何影响沿海地区的。许多北极冰川位于海岸向内陆的过渡地带，夏季雾频繁覆盖低海拔的沿海冰川融化减少。虽然已经认识到这一点，但对沿海过渡区的雾范围和趋势以及雾对冰川融化和行为的区域和局部影响的了解有限。*这项研究使用天气数据和卫星成像来记录加拿大和格陵兰北极沿海地区夏季雾和冰川长度、面积和融化在不同时间尺度上的变化。这些测量数据将与大气数据相结合，创建包括雾影响的冰川融化模型。来自这些方法的综合信息将有助于我们了解雾的时空趋势，雾如何影响冰川，以及冰川如何变化。这项研究计划的成果将有助于理解与冰川融化和冰川波动有关的过程，以及预测陆地和海洋终止冰川对气候变化的反应的能力。记录在案的雾随时间和空间的趋势，以及北极冰川的变化，也将使其他研究领域受益。

Breakup of Arctic sea ice causes fog, which is often the dominant cloud type in summer over oceans and coastal regions. Fog diminishes inland. Rapid recent climate change has affected cloudiness over Arctic ocean and land, but it is not clear how this has affected coastal regions. Many Arctic glaciers are located in the coast-to-inland transition zone, and those coastal glaciers with frequent summer fog covering their lower elevations experience reductions in melt. Although this has been recognized, understanding of fog extent and trends in coastal transition zones and regional and local effects of fog on glacier melt and behaviour is limited. ****This research uses weather data and satellite imaging to document summer fog and glacier length, area and melt changes over various timescales in Arctic coastal regions of Canada and Greenland. These measurements will be combined with atmospheric data to create glacier melt models that include the influence of fog. The combined information from these methods will help in our understanding of spatial and temporal trends in fog, how fog affects glaciers and how glaciers are changing. The outcomes of this research program will aid in the understanding of processes related to glacier melt and glacier fluctuations, and the ability to predict the response of land-terminating and ocean-terminating glaciers to climate change. The documented trends in fog over time and space, as well as changes in Arctic glaciers, will also benefit other research fields.