High resolution atmospheric measurements during descending profile SP50325T07 with POLAR 5@en

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航空探测数据，相关数据采集于2013年3月「春季大气边界层实验（SpringTime Atmospheric Boundary Layer Experiment, STABLE）」科考任务的三个观测日，观测区域主要覆盖斯瓦尔巴群岛（Svalbard）及其北侧的海冰边缘海域。本次科考由阿尔弗雷德·魏格纳研究所（Alfred Wegener Institute, AWI）与芬兰气象研究所（Finnish Meteorological Institute, FMI）牵头主导，探测工作搭载POLAR 5号科研飞机完成，所有单次时长5至6小时的科研航班均以朗伊尔城机场作为起降枢纽。本次科考期间，观测工作重点聚焦于对流层低层的垂直结构特征，以及大气边界层的演变过程——例如海洋性冷空气爆发阶段，以及海冰间水道上空对流活动影响下的边界层变化。本次发布的数据集主要包含采集于维杰夫峡湾（Wijdefjorden）的探测数据，该峡湾呈南北走向，位于斯匹次卑尔根岛（Spitsbergen）北部，全长超100千米。本次探测旨在研究该峡湾内的大气边界层结构，同时分析地形对局地大气状况的调控作用。该峡湾南部区域，直至峡湾顶端以北约72.5千米处，均被固定海冰覆盖；峡湾北部区域则分布有开阔水域。