Objective Forecasting of Foehn Winds for a Subgrid-Scale Alpine Valley
Abstract Foehn winds often depend on topographical features of a scale that is not sufficiently resolved in numerical models. Consequently, a successful foehn forecast has crucially depended on the experience of bench forecasters. This study provides a method for an objective, probabilistic forecast of foehn occurrence and strength ...
Georg J. Mayr, Susanne Drechsel
openaire +1 more source
A protracted phenology: Post‐diapause larval development of a threatened butterfly
Larval survival during diapause was high; hibernaculum webs were mostly located near Succisa pratensis plants, which often retained vital leaves through winter. Post‐diapause developmental time varied strongly depending on exposure to different microclimates, being reduced by litter cover, solar radiation and a higher heat load index.
Gwydion Scherer, Thomas Fartmann
wiley +1 more source
An online trajectory module (version 1.0) for the nonhydrostatic numerical weather prediction model COSMO [PDF]
A module to calculate online trajectories has been implemented into the nonhydrostatic limited-area weather prediction and climate model COSMO.
A. K. Miltenberger, S. Pfahl, H. Wernli
doaj +1 more source
Evaluation of Ensemble‐Based Extreme Forecast Diagnostics for Zonda Wind Prediction
Abstract Zonda is a downslope windstorm on the eastern slopes of the Andes in western Argentina. This Foehn‐like phenomenon can produce hazardous, strong, and gusty downslope winds, leading to extreme and rapid warming with severe societal impacts. Despite substantial advances in numerical weather prediction, forecasting Zonda winds remains challenging.
Federico Otero, Estíbaliz Gascón
wiley +1 more source
Subtropical Foehn Winds, Southeast Queensland, Australia
AbstractFoehn winds have been a focus of research in mid‐latitude mountainous regions for more than 150 years, where their onset is typically associated with warm, dry, and gusty winds. This research has now extended into high latitude regions, yet research of foehn winds in subtropical and tropical regions remains scarce.
Leon Wiesner +3 more
openaire +3 more sources
Modelling Storage‐Discharge Relationships in an Alpine Basin in the Canadian Rockies
CRHM was used to model storage‐discharge relationships for Fortress Mountain Research Basin, an alpine basin in the Canadian Rockies. The model showed reasonable predictions of snow accumulation, snowmelt, liquid soil moisture, and streamflow, and nonlinear and hysteretic storage‐discharge relationships for this alpine basin.
Xing Fang, John W. Pomeroy
wiley +1 more source
Automatic and probabilistic foehn diagnosis with a statistical mixture model [PDF]
Diagnosing foehn winds from weather station data downwind of topographic obstacles requires distinguishing them from other downslope winds, particularly nocturnal ones driven by radiative cooling.
Mayr, Georg J. +2 more
core
Southern California Santa Ana foehn wind characteristics and their relationship to fires in the ...
Jon E. Keeley (328156) +1 more
core +1 more source
Towards operational impact forecasting of building damage from winter windstorms in Switzerland
National meteorological and hydrological services issue warnings for severe weather events, typically based on stakeholder‐agreed fixed thresholds of meteorological parameters such as wind speeds or precipitation amounts.
Thomas Röösli +2 more
doaj +1 more source
Testing the Strength of Buried Surface Hoar Weak Layers Under Combined Compression and Shear Loading
Abstract We experimentally determined the multiaxial strength of weak layers of buried surface hoar using displacement‐controlled tests under combined normal and shear loading on a custom testing machine. We tested 63 samples from three different weak layers, with strengths ranging from 1 to 10 kPa with considerable scattering. While shear strength was
Jakob Schöttner +7 more
wiley +1 more source

