Radiosonde measurements in 2020-05 during MOSAiC Leg PS122/3 (level 2 data)@en

This is a Level 2 dataset of radiosondes launched during the MOSAiC expedition. The balloon-borne radiosondes measured temperature, pressure, relative humidity and wind from board R/V Polarstern to about 30 km height, commonly four times daily during the entire expedition period. The objective of Level 2 is to provide the user community with a usable data product before the final processed product is completed. Quality control for appropriate physical ranges has been applied. However, it should be noted that potential inconsistencies in the physical data in particular in the lowermost part of the profiles are not corrected. This regards e.g. GPS altitude close to the surface and wind direction at latitudes >89° N.本数据集为MOSAiC探险期间施放的二级（Level 2）无线电探空仪（radiosondes）数据集。该气球载无线电探空仪由极星号（R/V Polarstern）研究船施放，可探测至约30千米高度，测量参数涵盖气温、气压、相对湿度与风向风速，且在整个探险周期内，通常每日开展四次探测作业。本二级数据集的设计目标是在最终处理版数据完成前，向用户群体提供可直接使用的数据产品。已针对合理物理值域开展质量控制工作。但需特别注意，物理数据中存在的潜在不一致性，尤其是大气廓线最底部部分的此类问题，尚未得到修正。此类问题例如包括：近地面的GPS高程数据，以及北纬89°以上纬度区域的风向数据。