High resolution atmospheric measurements during ascending profile SP50317t22 with POLAR 5

The data set consists of high resolution airborne measurements that were obtained mainly over Svalbard and near the sea ice edge north of Svalbard on three days in March 2013 during the campaign "SpringTime Atmospheric Boundary Layer Experiment (STABLE). STABLE was led by the Alfred Wegener Institue (AWI) and by the Finnish Meteorological Institute (FMI). The measurements were performed using the POLAR 5 research aircraft, where all research flights of 5-6 hours duration started and ended at Longyearbyen airport. During STABLE, observations focused on the vertical structure of the lower troposphere as well as boundary layer modifications, e.g. during marine cold-air outbreaks and by convection over leads in sea ice. The data set presented here predominantly consists of measurements that were obtained over the Wijdefjorden, which is a North-South oriented fjord with a length of more than 100km in the northern part of Spitsbergen. The measurements were carried out to study the boundary layer structure in the fjord as well as for analyses of the role of the topography on the atmospheric conditions. In its southern part, the fjord was covered by land-fast sea ice until about 72.5km north of the fjord's head. In its northern part, there was open water.

本数据集包含高分辨率机载测量数据，这些数据主要于2013年3月的三天内，在“春季大气边界层实验（SpringTime Atmospheric Boundary Layer Experiment，STABLE）”活动期间，在斯瓦尔巴德群岛上空及该群岛以北的海冰边缘附近获取。STABLE由阿尔弗雷德·魏格纳研究所（Alfred Wegener Institute，AWI）和芬兰气象研究所（Finnish Meteorological Institute，FMI）牵头。测量由POLAR 5研究飞机完成，所有时长5-6小时的研究飞行均从朗伊尔城机场起降。在STABLE期间，观测重点是对流层低层的垂直结构以及边界层的变化，例如海洋冷空气爆发期间的变化，以及海冰裂隙上方对流引起的变化。本数据集主要包含在维杰菲约登（Wijdefjorden）上空获取的测量数据，该峡湾为南北走向，位于斯匹次卑尔根岛北部，长度超过100公里。开展这些测量旨在研究峡湾内的边界层结构，以及分析地形对大气条件的作用。该峡湾南部被固定海冰覆盖，直至峡湾源头以北约72.5公里处；北部则为开阔水域。