Tethered Balloon-Borne Turbulence Measurements in Winter and Spring during the MOSAiC Expedition


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sandro.dahlke [ at ] awi.de

Abstract

During the Multidisciplinary Drifting Observatory for the Study of Arctic Climate expedition, a tethered balloon system was operated with a turbulence probe attached to study the lower troposphere in the high Arctic. Overall, measurements were conducted on 34 days between December 2019 and May 2020, resulting in 47 quality-assured sampling records consisting of vertical profiles and constant-altitude measurements. The continuous profiles extend from the surface, i.e., the sea ice floe, to a height of several hundred meters typically. The high-resolution wind velocity measurements using a hot-wire anemometer and temperature measurements using a thermocouple provide a comprehensive basis for examining the dynamical processes and thermodynamic stratification in the Arctic atmospheric boundary layer under cloudless and cloudy conditions. This paper provides a detailed technical description of the turbulence payload, including calibration and quality assurance, and a general overview of the data. A particular focus of this work is the estimation of local energy dissipation rates. The data are freely available from the World Data Center PANGAEA.



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Published
Eprint ID
60084
DOI 10.1038/s41597-023-02582-5

Cite as
Akansu, E. F. , Siebert, H. , Dahlke, S. , Graeser, J. , Jaiser, R. and Sommerfeld, A. (2023): Tethered Balloon-Borne Turbulence Measurements in Winter and Spring during the MOSAiC Expedition , Scientific Data, 10 (1), p. 723 . doi: 10.1038/s41597-023-02582-5


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