Radiosonde measurements in 2020-07 during MOSAiC Legs PS122/4 (level 3 data)

• Main Authors: Maturilli, Marion, Sommer, Michael, Holdridge, Donna J, Dahlke, Sandro, Deckelmann, Holger, Schulz, Alexander
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: ALTITUDE; uncertainty; Arctic; Arctic Ocean; Ascent rate; DATE/TIME; Day-Night indicator; Dew/frost point; Event label; GCOS Reference Upper-Air Network; Geoid difference; GNSS receiver mounted on radiosonde RS41; GRUAN; Height; Height above sea level; Horizon correction angle; Humidity; relative; humidity profile; LATITUDE; LONGITUDE; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; Pressure; at given altitude; PS122/4; PS122/4_45-102; PS122/4_45-103; PS122/4_45-104; PS122/4_45-105; PS122/4_45-122; PS122/4_45-123
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.944853; https://doi.org/10.1594/PANGAEA.944853

This Level 3 dataset of radiosondes launched during the MOSAiC expedition has been processed by the Global Climate Observing System (GCOS) Reference Upper-Air Network (GRUAN) algorithm for RS41 radiosonde data. The GRUAN processing is based on the extensive characterisation of the sensor properties to produce a traceable reference data product which is free of manufacturer-dependent effects. Uncertainty values are provided for all measured parameters at all height levels. It should be noted that all provided height information is obtained from the GPS measurement. Close to buildings and metal surfaces (such as RV Polarstern) GPS signals are often very noisy, resulting in artifacts in the vertical elevation coordinate close to the surface. In the atmospheric boundary layer, it is therefore recommended to rely on height calculations based on pressure. Please note that the TAB-delimited ascii format data present only a subset of parameters. The complete GRUAN-processed data are available in the linked netCDF files.