High resolution aircraft measurements of wind and temperature during the AFLUX campaign in 2019

• Main Authors: Lüpkes, Christof, Hartmann, Jörg, Chechin, Dmitry, Michaelis, Janosch
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: AC; AC3; AFLUX; airborne measurements; Aircraft; Arctic Amplification; Binary Object; Binary Object (File Size); DATE/TIME; Event label; File content; Greenland Sea; P5_216_AFLUX_2019; P5_216_AFLUX_2019_1903190201; P5_216_AFLUX_2019_1903210301; P5_216_AFLUX_2019_1903230401; P5_216_AFLUX_2019_1903240501; P5_216_AFLUX_2019_1903250602; P5_216_AFLUX_2019_1903300701; P5_216_AFLUX_2019_1903310801; P5_216_AFLUX_2019_1904010901; P5_216_AFLUX_2019_1904031002; P5_216_AFLUX_2019_1904061202; P5_216_AFLUX_2019_1904071301; P5_216_AFLUX_2019_1904081401; P5_216_AFLUX_2019_1904111501; Polar 5; RF02; RF03; RF04; RF05; RF06; RF07; RF08; RF09; RF10; RF12; RF13; RF14; RF15; Svalbard; turbulence; Arctic; Greenland; Longyearbyen
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.945844; https://doi.org/10.1594/PANGAEA.945844

During the AFLUX (Airborne measurements of radiative and turbulent FLUXes of energy and momentum in the Arctic boundary layer) campaign conducted in March/April 2019 meteorological data (temperature, 3 wind components, air pressure) have been measured in high temporal resolution (100 Hz) using instrumentation that was installed at the nosebooms of both aircraft Polar 5 and Polar 6. For each flight the data are given as functions of time and position (including height above ground) along the flight tracks. All flights started and ended in Longyearbyen, Svalbard. Each file represents an entire flight starting well before the first movement of the plane and ending after the final parking position has been reached after landing. The wind measurement is only valid during flight and the full accuracy is only achieved during straight level flight sections. The absolute accuracy of the wind components is 0.2m/s for straight and level flights sections and the relative accuracy of the vertical wind speed is about 0.05m/s for straight and level flight sections. For these sections, which can be obtained on the basis of the given roll and pitch angles of the aircraft, the 100 Hz data can be used to derive turbulent fluxes of momentum and sensible heat. For further informations on the data processing and accuracy of the turbulence measurement refer to Hartmann et al. (2018, doi:10.5194/amt-11-4567-2018).