Journal Article

FZJ-2015-06957

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Airborne observation of mixing across the entrainment zone during PARADE 2011

Berkes, F. (Corresponding author)FZJ* ; Hoor, P. ; Bozem, H. ; Kunkel, D. ; Sprenger, M. ; Henne, S.

2015
EGU Katlenburg-Lindau

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Please use a persistent id in citations: http://hdl.handle.net/2128/9497  doi:10.5194/acpd-15-29171-2015

Abstract: This study presents the analysis of the structure and air mass characteristics of the lower atmosphere during the field campaign PARADE (PArticles and RAdicals: Diel observations of the impact of urban and biogenic Emissions) on Mount Kleiner Feldberg in southwestern Germany during late summer 2011. We analysed measurements of meteorological variables (temperature, moisture, pressure, wind speed and direction) from radio soundings and of chemical tracers (carbon dioxide, ozone) from aircraft measurements. We focus on the thermodynamic and dynamic properties, that control the chemical distribution of atmospheric constituents in the boundary layer. We show that the evolution of tracer profiles of CO2 and O3 indicate mixing across the inversion layer (or entrainment zone). This finding is supported by the analysis of tracer–tracer correlations which are indicative for mixing and the relation of tracer profiles in relation to the evolution of the boundary layer height deduced from radio soundings. The study shows the relevance of entrainment processes for the lower troposphere in general and specifically that the tracer–tracer correlation method can be used to identify mixing and irreversible exchange processes across the inversion layer.

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Contributing Institute(s):

1. Troposphäre (IEK-8)

Research Program(s):

1. 243 - Tropospheric trace substances and their transformation processes (POF3-243) (POF3-243)

Appears in the scientific report 2015

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Database coverage:
; ; ; ; NCBI Molecular Biology Database

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