High resolution atmospheric measurements during descending profile SP50319t01 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.

数据集包含高分辨率航空探测数据，所有数据采集于2013年3月的三次观测日中，主要覆盖斯瓦尔巴群岛（Svalbard）及其以北的海冰边缘区域，本次实验名为“春季大气边界层实验（SpringTime Atmospheric Boundary Layer Experiment, STABLE）”。该实验由阿尔弗雷德·魏格纳研究所（Alfred Wegener Institute, AWI）与芬兰气象研究所（Finnish Meteorological Institute, FMI）联合牵头执行。本次探测由POLAR 5号科研飞机搭载完成，所有时长5至6小时的科研飞行均以朗伊尔城机场（Longyearbyen Airport）为起降点。实验期间，观测重点聚焦于对流层低层的垂直结构以及边界层的变化特征，例如海洋冷空气爆发期间，以及海冰冰间水道处的对流活动引发的边界层改变。本数据集主要包含在维耶夫峡湾（Wijdefjorden）上空获取的探测数据，该峡湾呈南北走向，位于斯匹次卑尔根岛（Spitsbergen）北部，全长超过100千米。本次探测旨在研究该峡湾内的大气边界层结构，并分析地形对大气状态的影响作用。峡湾的南部区域（直至峡湾顶端以北约72.5千米处）被固定海冰覆盖，而峡湾北部区域则分布有开阔水域。