Upper air soundings during POLARSTERN cruise ANT-VIII/5

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.

常规高空大气探测（upper air sounding）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。本次探测采用TOTEX系列600克、800克充氦气球，搭载维萨拉Vaisala RS80型无线电探空仪（radiosonde）。若条件允许，探空施放均安排在协调世界时（UTC）10时左右。经压缩的探测数据采用TEMP FM-35格式，将实时无延迟地传输至全球电信系统（Global Telecommunication System, GTS），为全球天气预报提供数据支撑。探测数据每5至10秒采集一次，对应的垂直廓线空间分辨率约为25至50米。本次探测的垂直廓线数据采集起点为海拔10米的直升机甲板，终点为气球爆高高度，通常介于25至37千米之间。