Original scientific paper
AEROSOL MEASUREMENTS IN THE RHINE VALLEY DURING FOEHN – ANOTHER FORM PERSPECTIVE
Markus Furger
orcid.org/0000-0003-2401-6448
; Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
Richard Werner
; Umweltinstitut des Landes Vorarlberg, 6901 Bregenz, Austria
Valentin Mitev
; Observatoire de Neuchâtel, 2000 Neuchâtel, Switzerland
Max Frioud
; ALOMAR Observatory, Andøya Rocket Range, Andenes, Norway
Bruno Neininger
; MetAir AG, 6313 Menzingen, Switzerland
André S.H. Prévôt
; Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
Abstract
While the main focus of the MAP subproject FORM (Foehn in the Rhine Valley during MAP) was on atmospheric dynamics, numerous measurements of chemical constituents of the atmosphere have been performed with various instruments on different platforms. Aerosol measurements have been obtained with routinely operated conventional surface stations, in-situ airborne particle counters and a backscatter lidar. For the MAP SOP it was found that near-surface aerosol concentrations are reduced by the foehn, i.e. they are lowest at the day after the foehn event, especially in the late fall when the valley inversion becomes stronger. A case study for 2 Oct 1999 (IOP 5) reveals considerable spatial variability in aerosol concentrations and shows interactions of the aerosols with the humidity field.
Keywords
FORM; MAP; foehn; aerosol; aircraft measurements; lidar; air quality; Rhine valley
Hrčak ID:
64550
URI
Publication date:
15.12.2005.
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