Extended radiosonde profiles 2019/09-2020/10 during MOSAiC Legs PS122/1 - PS122/5 ...

• Main Authors: Dahlke, Sandro, Shupe, Matthew D, Cox, Christopher J, Brooks, Ian M, Blomquist, Byron, Persson, P Ola G
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: boundary layer; MOSAiC20192020; Profile; Radiosonde; Event label; Other event; DATE/TIME; LATITUDE; LONGITUDE; Text file; Text file File Size; Flux tower; PS122/1; PS122/2; PS122/3; PS122/4; PS122/5; Polarstern; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Arctic; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.961881; https://doi.pangaea.de/10.1594/PANGAEA.961881

During the MOSAiC expedition 2019-2020 atmospheric thermodynamic profile measurements have been conducted from a meteorological (Met) Tower on the sea ice, as well as via collocated radiosondes that were launched approximately every six hours from aboard Polarstern. While the radiosondes lack the lowermost 10 m above the sea ice, the Met Tower profile can be used to fill this gap (observations at 0, 2, 6 and 10 meters). This is a blended data product that merges the Met Tower profile (data version 3.4, doi:10.18739/A2PV6B83F) in the minute of the radiosonde launch with the radiosonde profile aloft (data version 3, doi:10.1594/PANGAEA.943870). Parameters included are temperature (T), relative humidity (RH), wind speed and -direction, and air pressure. The aim of this product is two-fold: (1) To provide comprehensive atmospheric profiles for each radiosonde launch, that additionally retain the lowermost meters of the atmospheric boundary layer above the sea ice and (2) to remove potential unrealistic T/RH ... : This dataset is a merged data set from the MOSAiC 20192020 expedition, in which two concurrent atmospheric profile measurements are blended together. One is collected from a Met Tower and covers the 0-10 m altitude range, one is a radiosonde data set which covers the altitude range above 10 m . Both base data sets are already published and referenced to. The added value of the blended data set is that it combines the two to generate one comprehensive profile for each radiosonde launch, that adds additional information in the 0 - 10 m height range, and occasional unrealistic radiosonde values in the 10 - 100 m height range have been detected and replaced by improved estimates. This makes this blended data set better suitable for applications that rely on the lowermost 100 m of the atmospheric profiles (e.g., for boundary layer studies). ...