Atmospheric Dynamics (Wernli)

Themen BSc Seminar HS 2021

Betreuung: Nicolai Krieger(CHN M17.2, nicolai.krieger@env.ethz.ch)

WeatherSystemDynamics

Microphysics& Dynamics

StableWaterIsotopes

Foehn dynamicsForschungsthemender Arbeitsgruppen

Observations

Synoptic flow conditions

Numerical modeling

Predictions

Process understanding

Extremeseasons

Japan's south foehn on the Toyama Plain: Dynamical or thermodynamical mechanisms?Kusaka et al. (2021), Quart. J. Roy. Meteorol. Soc.

• Climatological analysis of Japan’s south foehn

• When and under which synoptic conditions do foehn events occur?

Distribution of near-surface temperatures and winds during foehn

Typical synoptic weather situation during a foehn event

Comparison of km and sub-km scale simulations of a foehn wind event over the Larsen C Ice Shelf, Antarctic Peninsula

Orr et al. (2021), Quart. J. Roy. Meteorol. Soc.

• Simulations of a foehn event and its interaction with a cold pool over the

Antarctic Peninsula

• The study evaluates the ability of three simulations with the MetUM

atmospheric model at different grid spacing to represent these interactions

Comparison of 10m wind speed and 1.5m temperatureComparison of vertical profiles

Elvidge et al. (2015), Quart. J. Roy. Meteorol. Soc.

• Analysis of westerly foehn above the the Antarctic Peninsula using

model simulations and aircraft observations

• Identification of foehn jets as a type of gap flow in three cases using

backward trajectories

Foehn jets over the Larsen C Ice Shelf, Antarctica

Backward trajectories from a foehn jetCross-sections during a foehn event