Articles | Volume 3, issue 1
Research article
25 Mar 2022
Research article |  | 25 Mar 2022

Is it north or west foehn? A Lagrangian analysis of Penetration and Interruption of Alpine Foehn intensive observation period 1 (PIANO IOP 1)

Manuel Saigger and Alexander Gohm

Related authors

Dynamics of gap winds in the Great Rift Valley, Ethiopia: emphasis on strong winds at Lake Abaya
Cornelius Immanuel Weiß, Alexander Gohm, Mathias Walter Rotach, and Thomas Torora Minda
Weather Clim. Dynam., 3, 1003–1019,,, 2022
Short summary
Energy and mass exchange at an urban site in mountainous terrain – the Alpine city of Innsbruck
Helen Claire Ward, Mathias Walter Rotach, Alexander Gohm, Martin Graus, Thomas Karl, Maren Haid, Lukas Umek, and Thomas Muschinski
Atmos. Chem. Phys., 22, 6559–6593,,, 2022
Short summary
A process-based evaluation of the Intermediate Complexity Atmospheric Research Model (ICAR) 1.0.1
Johannes Horak, Marlis Hofer, Ethan Gutmann, Alexander Gohm, and Mathias W. Rotach
Geosci. Model Dev., 14, 1657–1680,,, 2021
Short summary
Assessing the added value of the Intermediate Complexity Atmospheric Research (ICAR) model for precipitation in complex topography
Johannes Horak, Marlis Hofer, Fabien Maussion, Ethan Gutmann, Alexander Gohm, and Mathias W. Rotach
Hydrol. Earth Syst. Sci., 23, 2715–2734,,, 2019
Short summary
Quantifying horizontal and vertical tracer mass fluxes in an idealized valley during daytime
Daniel Leukauf, Alexander Gohm, and Mathias W. Rotach
Atmos. Chem. Phys., 16, 13049–13066,,, 2016
Short summary

Related subject area

Dynamical processes in midlatitudes
Anomalous subtropical zonal winds drive decreases in southern Australian frontal rain
Acacia S. Pepler and Irina Rudeva
Weather Clim. Dynam., 4, 175–188,,, 2023
Short summary
Origin of low-tropospheric potential vorticity in Mediterranean cyclones
Alexander Scherrmann, Heini Wernli, and Emmanouil Flaounas
Weather Clim. Dynam., 4, 157–173,,, 2023
Short summary
Robust poleward jet shifts in idealised baroclinic-wave life-cycle experiments with noisy initial conditions
Felix Jäger, Philip Rupp, and Thomas Birner
Weather Clim. Dynam., 4, 49–60,,, 2023
Short summary
Revisiting the wintertime emergent constraint of the southern hemispheric midlatitude jet response to global warming
Philipp Breul, Paulo Ceppi, and Theodore G. Shepherd
Weather Clim. Dynam., 4, 39–47,,, 2023
Short summary
The global atmospheric energy transport analysed by a wavelength-based scale separation
Patrick Johannes Stoll, Rune Grand Graversen, and Gabriele Messori
Weather Clim. Dynam., 4, 1–17,,, 2023
Short summary

Cited articles

Arduini, G., Chemel, C., and Staquet, C.: Local and non-local controls on a persistent cold-air pool in the Arve River Valley, Q. J. Roy. Meteor. Soc., 146, 2497–2521,, 2020. a
Atmospheric Dynamics Group, Institute for Atmospheric and Climate Science, ETH Zurich: LAGRANTO – The Lagrangian Analysis Tool, Atmospheric Dynamics Group, Institute for Atmospheric and Climate Science, ETH Zurich [code],, last access: 28 September 2021. a
Bowman, K., Lin, J., Stohl, A., Draxler, R., Konopka, P., Andrews, A., and Brunner, D.: Input Data Requirements for Lagrangian Trajectory Models, B. Am. Meteorol. Soc., 94, 1051–1058,, 2013. a
Brioude, J., Arnold, D., Stohl, A., Cassiani, M., Morton, D., Seibert, P., Angevine, W., Evan, S., Dingwell, A., Fast, J. D., Easter, R. C., Pisso, I., Burkhart, J., and Wotawa, G.: The Lagrangian particle dispersion model FLEXPART-WRF version 3.1, Geosci. Model Dev., 6, 1889–1904,, 2013. a
Bryan, G. H. and Fritsch, J. M.: A Reevaluation of Ice–Liquid Water Potential Temperature, Mon. Weather Rev., 132, 2421–2431,<2421:AROIWP>2.0.CO;2, 2004. a
Short summary
In this work a special form of a foehn wind in an Alpine valley with a large-scale northwesterly flow is investigated. The study clarifies the origin of the air mass and the mechanisms by which this air enters the valley. A trajectory analysis shows that the location where the main airstream passes the crest line is more suitable for a foehn classification than the local or large-scale wind direction. Mountain waves and a lee rotor were crucial for importing air into the valley.