Upper air soundings during POLARSTERN cruise ANT-XVII/4

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 RS80 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. […]

高空探测通常每日进行一次，以测量气压、温度、相对湿度和风向的垂直分布。采用氦气填充的气球（TOTEX 600克、800克）搭载Vaisala RS80无线电探空仪。在可能的情况下，发射时间约为10 UTC。压缩测量数据（TEMP格式FM-35）被及时传输至全球电信系统GTS，为全球天气预报提供数据支持。每隔5至10秒采集一次剖面数据，从而实现约25至50米的垂直剖面分辨率。剖面数据从海平面以上10米处的直升机平台开始，直至气球爆裂高度，通常在25至37公里之间。