Upper air soundings during POLARSTERN cruise ARK-XXIV/1@en

The upper air soundings are normally performed once a day to measure vertical profiles of air pressure, temperature, relative humidity and the wind vector. Helium filled balloons (TOTEX 600 g, 800 g) were used to carry Vaisala RS92-SGPW radiosondes. Whenever possible, the launches were performed about 10 UTC. Condensed measurements (TEMP Format FM-35) were transferred without delay into the Global Telecommunication System GTS were they contribute for the world wide weather forecasts. The profile data were taken every 5-10 seconds which result in a vertical profile resolution of about 25-50 meter. The profiles start at the helideck 10 m above sea level and terminate at the burst level of the balloons, normally at heights between 25 and 37 km.高空探测（upper air sounding）通常每日开展一次，用于获取气压、气温、相对湿度与风矢量的垂直廓线。本数据集采用标称重量600克、800克的充氦气球，搭载维萨拉（Vaisala）RS92-SGPW型无线电探空仪进行探测。在条件允许的情况下，探空施放均安排在约协调世界时10时（UTC）。经压缩的TEMP格式FM-35探测数据会即时上传至全球电信系统（Global Telecommunication System，GTS），为全球天气预报提供数据支撑。廓线数据每5至10秒采集一次，对应的垂直廓线分辨率约为25至50米。探测廓线的采集起点为海拔10米的直升机甲板，终点为气球爆裂高度，通常介于25至37千米之间。