Brightness temperature measured by HUTRAD radiometer at 6.8 and 10.65 GHz from March to September 2020 during the MOSAiC expedition

• Main Authors: Rostosky, Philip, Spreen, Gunnar, Casal, Tânia, Donlon, Craig, Kaleschke, Lars, Lemmetiynen, Juha, Mahmud, Mallik, Naderpour, Reza, Tavri, Aikaterini, Thielke, Linda
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Arctic; Arctic Ocean; Binary Object; Binary Object (File Size); brightness temperatures; Comment; Cruise/expedition; DATE/TIME; ELEVATION; Event label; File content; HUTRAD; IceSense; LATITUDE; LONGITUDE; Microwave Radiometer; MOSAiC; MOSAiC20192020; MOSAiC expedition; MRA; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; PS122/3; PS122/3_28-52; PS122/3_28-76; PS122/4; PS122/4_43-111; PS122/5; PS122/5_58-50; radiometer; Remote Sensing of the Seasonal Evolution of Climate-relevant Sea Ice Properties; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.954608; https://doi.org/10.1594/PANGAEA.954608

This datasets contains ground-based on sea-ice floe observations from the Helsinki University of Technology RADiometer (HUTRAD) at microwave frequencies 6.8 GHz 10.65 GHz and 18.7 GHz taken during Leg 3 (April - May, 2020), Leg 4 (July 2020) and Leg 5 (August - September 2020) of the MOSAiC campaign. Two types of data are provided. Raw observations of individual measurement periods (hutrad_*.dat) for leg 3 to leg 5 and calibrated brightness temperatures (HUTRAD_*.txt) for leg 3 and leg 5. The raw observations of HUTRAD (counts) are calibrated to brightness temperature using a standard two-point calibration approach by assuming a linear relation between the measurements of the cold sky and measurements at ambient temperature using a microwave absorber. Details about the data format, usage and the instrument can be found in the file Data_manual.pdf.