Publications by Wolf Hendrik Huwald

Related publications (39)

Stream temperature prediction in ungauged basins: review of recent approaches and description of a new physics-derived statistical model

Michael Lehning, Marc Parlange, Bettina Schaefli, Wolf Hendrik Huwald, Aurélien Gallice

The development of stream temperature regression models at regional scales has regained some popularity over the past years. These models are used to predict stream temperature in ungauged catchments to assess the impact of human activities or climate chan ...

European Geosciences Union2015

Evolution of stream and lake water temperature under climate change

Alfred Johny Wüest, Damien Bouffard, Bettina Schaefli, Wolf Hendrik Huwald, Adrien Michel, Carl Love Mikael Råman Vinnå

This report presents past observations and projects the future development of water temperature in Swiss lakes and rivers. Projections are made until the end of the 21st century using the CH2018 climate scenarios. Besides climate change effects on temperat ...

Federal Office for the Environment (FOEN)2021

Observations and simulations of new snow density in the drifting snow-dominated environment of Antarctica

Michael Lehning, Wolf Hendrik Huwald, Armin Sigmund

Owing to drifting snow processes, snow accumulation and surface density in polar environments are variable in space and time. We present new field data of manual measurements, repeat terrestrial laser scanning and snow micro-penetrometry from Dronning Maud ...

CAMBRIDGE UNIV PRESS2022

Future water temperature of rivers in Switzerland under climate change investigated with physics-based models

Michael Lehning, Bettina Schaefli, Wolf Hendrik Huwald, Nander Wever, Adrien Michel

River ecosystems are highly sensitive to cli-mate change and projected future increase in air tempera-ture is expected to increase the stress for these ecosystems. Rivers are also an important socio-economic factor impact- ing, amongst others, agriculture, ...

2022

Evolution of superficial lake water temperature profile under diurnal radiative forcing

Marc Parlange, Ulrich Lemmin, Wolf Hendrik Huwald, Ivan Lunati, Nikki Vercauteren

In lentic water bodies, such as lakes, the water temperature near the surface typically increases during the day, and decreases during the night as a consequence of the diurnal radiative forcing (solar and infrared radiation). These temperature variations ...

American Geophysical Union2011

Stream Temperature Evolution in Switzerland: Recent past and future

Michael Lehning, Bettina Schaefli, Wolf Hendrik Huwald, Nander Wever, Tristan Jonas Brauchli, Adrien Michel

Climate change has already affected many components of our natural environment which are well described in the literature. Water temperature has received less interest despite the fact that it is recognized as key variable for assessing water quality of fr ...

2020

Field study of the dynamics and modelling of subgrid-scale turbulence in a stable atmospheric surface layer over a glacier

Marc Parlange, Wolf Hendrik Huwald, Chad Higgins

A field experiment – the Snow Horizontal Array Turbulence Study (SnoHATS) – has been performed over an extensive glacier in Switzerland in order to study small-scale turbulence in the stable atmospheric surface layer, and to investigate the role, dynamics ...

Cambridge University Press2010

The European mountain cryosphere: a review of its current state, trends, and future challenges

Michael Lehning, Wolf Hendrik Huwald

The mountain cryosphere of mainland Europe is recognized to have important impacts on a range of environmental processes. In this paper, we provide an overview on the current knowledge on snow, glacier, and permafrost processes, as well as their past, curr ...

2018

Stream Temperature Response to Three Riparian Vegetation Scenarios by Use of a Distributed Temperature Validated Model

Martin Vetterli, Marc Parlange, Aurèle Parriaux, Wolf Hendrik Huwald, Guillermo Barrenetxea Kobas

Elevated in-stream temperature has led to a surge in the occurrence of parasitic intrusion proliferative kidney disease and has resulted in fish kills throughout Switzerland's waterways. Data from distributed temperature sensing (DTS) in-stream measurement ...

2010

Influence of slope-scale snowmelt on catchment response simulated with the Alpine3D model

Michael Lehning, Wolf Hendrik Huwald, Ernesto Trujillo Gomez, Tristan Jonas Brauchli

Snow and hydrological modeling in alpine environments remains challenging because of the complexity of the processes affecting the mass and energy balance. This study examines the influence of snowmelt on the hydrological response of a high-alpine catchmen ...

2017

Flow during the evening transition over steep Alpine slopes

Marc Parlange, Wolf Hendrik Huwald, Eric Richard Pardyjak, Chad Higgins, Daniel Nadeau

A field campaign, the Slope Experiment near La Fouly (SELF-2010), was conducted to monitor the evening transition of slope flows on clear-sky days from July to September 2010 in a narrow valley of the Swiss Alps. A steep west-facing slope with inclinations ...

Wiley-Blackwell2013

Quantifying urban climate response to large-scale forcing modified by local boundary layer effects

Michael Lehning, Wolf Hendrik Huwald, Seyed Mahmood Hamze Ziabari

Over the past two decades, the joint manifestation of global warming and rapid urbanization has significantly increased the occurrence of heatwaves and the formation of urban heat islands in temperate cities. Consequently, this synergy has amplified the fr ...

2024

Adapting tilt corrections and the governing flow equations for steep, fully three-dimensional, mountainous terrain

Marc Parlange, Wolf Hendrik Huwald, Eric Richard Pardyjak, Holly Jayne Oldroyd

In recent studies of atmospheric turbulent surface exchange in complex terrain, questions arise concerning velocity-sensor tilt corrections and the governing flow equations for coordinate systems aligned with steep slopes. The standard planar-fit method, a ...

2016

Thermal diffusivity of seasonal snow determined from temperature profiles

Marc Parlange, Wolf Hendrik Huwald, Chad Higgins, Holly Jayne Oldroyd

Thermal diffusivity of snow is an important thermodynamic property associated with key hydrological phenomena such as snow melt and heat and water vapor exchange with the atmosphere. Direct determination of snow thermal diffusivity requires coupled point m ...

Elsevier2013

Distributed fiber-optic temperature sensing for hydrologic systems

Luc Thévenaz, Marc Parlange, Wolf Hendrik Huwald, Nicolaas Cornelis van de Giesen

Instruments for distributed fiber-optic measurement of temperature are now available with temperature resolution of 0.01°C and spatial resolution of 1 m with temporal resolution of fractions of a minute along standard fiber-optic cables used for communicat ...

2006

Attenuation of wind-induced pressure perturbations in alpine snow

Marc Parlange, Wolf Hendrik Huwald, Chad Higgins

Windpumping has been identified as a process that could potentially enhance sublimation of surface snow at high forcing frequency and spawn air movement deeper in firn at lower frequencies. We performed an experiment to examine the relationship between hig ...

International Glaciological Society2016

Combining Weather Station Data and Short-Term LiDAR Deployment to Estimate Wind Energy Potential with Machine Learning: A Case Study from the Swiss Alps

Michael Lehning, Wolf Hendrik Huwald, Jérôme François Sylvain Dujardin, Franziska Gerber, Fanny Kristianti

Wind energy potential in complex terrain is still poorly understood and difficult to quantify. With Switzerland’s current efforts to shift to renewable energy resources, it is now becoming even more crucial to investigate the hidden potential of wind energ ...

2023

Radar measurements of blowing snow off a mountain ridge

Michael Lehning, Wolf Hendrik Huwald, Benjamin Andreas Walter, Josué Etienne Gehring

Modelling and forecasting wind-driven redistribution of snow in mountainous regions with its implications on avalanche danger, mountain hydrology or flood hazard is still a challenging task often lacking in essential details. Measurements of drifting and b ...

2020

Carbon monoxide as a tracer of gas transport in snow and other natural porous media

Marc Parlange, Wolf Hendrik Huwald, Marc Calaf Bracons, Nicolaas Cornelis van de Giesen

The movement of air in natural porous media is complex and challenging to measure. Yet gas transport has important implications, for instance, for the evolution of the seasonal snow cover and for water vapor transport in soil. A novel in situ multi-sensor ...

American Geophysical Union2012

Subgrid-Scale Dynamics of Water Vapour, Heat, and Momentum over a Lake

Marc Parlange, Ulrich Lemmin, Wolf Hendrik Huwald, Nikki Vercauteren

We examine the dynamics of turbulence subgrid (or sub-filter) scales over a lake surface and the implications for large-eddy simulations (LES) of the atmospheric boundary layer. The analysis is based on measurements obtained during the Lake-Atmosphere Turb ...

2008