PAMARCMiP Contribution: An analytic model companion based on observations: The role of low-level jets in the advection of passive tracers in the high Arctic

The present report povides technical background information to the study of Egerer et al. (2023) on the role of a low-level jet (LLJ) for stirring the stable atmospheric surface layer in the Arctic. Based on micrometeorological tower measurements and tethered balloon-borne hot-wire anemometer measurements conducted during a 15 h observation period during the PAMARCMiP field experiment at the Villum Research Station (VRS, Station Nord) in North-East Greenland (March 28-30, 2018). Egerer et al. (2023) analyzed the transition of a stable atmospheric boundary layer (ABL) with a LLJ into a traditional stable ABL in the late-winter central Arctic