Turbulence measurements during HALO-(AC)³ and AFLUX in the atmospheric boundary layer over the Arctic MIZ


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janosch.michaelis [ at ] awi.de

Abstract

We investigate the atmospheric boundary layer (ABL) structure over the marginal sea ice zone (MIZ) using AFLUX and HALO-(AC)³ measurements. We present vertical profiles of mean and turbulent ABL quantities obtained in springtime conditions during Arctic cold air outbreaks. However, the environmental conditions (clouds, sea ice) for the two cases strongly differed. Thus, we raised three questions: - How do clouds and sea ice fraction affect the vertical profiles of mean and turbulent quantities over both MIZ and open ocean? - How strong is the impact of an upper cloud layer in slightly convective conditions (AFLUX)? - Is the impact of only one cloud layer 'visible' in the turbulence structure over the open ocean in a strongly convective situation?



Item Type
Conference (Poster)
Authors
Divisions
Primary Division
Programs
Primary Topic
Publication Status
Published
Event Details
HALO-(AC)³ Meeting, 13 Jul 2022 - 15 Jul 2022, Hamburg, Germany.
Eprint ID
56703
Cite as
Michaelis, J. , Lüpkes, C. , Hartmann, J. and Vihma, T. (2022): Turbulence measurements during HALO-(AC)³ and AFLUX in the atmospheric boundary layer over the Arctic MIZ , HALO-(AC)³ Meeting, Hamburg, Germany, 13 July 2022 - 15 July 2022 .


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POLAR 5 > P5_216_AFLUX_2019


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