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Dive into the research topics where Silvia Simoni is active.

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Featured researches published by Silvia Simoni.


Water Resources Research | 2011

Hydrologic response of an alpine watershed: Application of a meteorological wireless sensor network to understand streamflow generation

Silvia Simoni; Simone A. Padoan; Daniel F. Nadeau; Marc Diebold; Amilcare Porporato; Guillermo Barrenetxea; François Ingelrest; Martin Vetterli; Marc B. Parlange

A field measurement campaign was conducted from June to October 2009 in a 20 km2 catchment of the Swiss Alps with a wireless network of 12 weather stations and river discharge monitoring. The objective was to investigate the spatial variability of meteorological forcing and to assess its impact on streamflow generation. The analysis of the runoff dynamics highlighted the important contribution of snowmelt from spring to early summer. During the entire experimental period, the streamflow discharge was dominated by base flow contributions with temporal variations due to occasional rainfall-runoff events and a regular contribution from glacier melt. Given the importance of snow and ice melt runoff in this catchment, patterns of near-surface air temperatures were studied in detail. Statistical data analyses revealed that meteorological variables inside the watershed exhibit spatial variability. Air temperatures were influenced by topographic effects such as slope, aspect, and elevation. Rainfall was found to be spatially variable inside the catchment. The impact of this variability on streamflow generation was assessed using a lumped degree-day model. Despite the variability within the watershed, the streamflow discharge could be described using the lumped model. The novelty of this work mainly consists in quantifying spatial variability for a small watershed and showing to which extent this is important. When the focus is on aggregated outputs, such as streamflow discharge, average values of meteorological forcing can be adequately used. On the contrary, when the focus is on distributed fields such as evaporation or soil moisture, their estimate can benefit from distributed measurements.


Advances in Water Resources | 2013

Improving the degree-day method for sub-daily melt simulations with physically-based diurnal variations

Cara Tobin; Bettina Schaefli; Ludovico Nicotina; Silvia Simoni; Guillermo Barrenetxea; Russell Smith; Marc B. Parlange; Andrea Rinaldo


Water Resources Research | 2011

Hydrologic response of an alpine watershed: Application of a meteorological wireless sensor network to understand streamflow generation: HYDROLOGIC RESPONSE OF ALPINE WATERSHED WITH SENSOR NETWORKS

Silvia Simoni; Simone A. Padoan; Daniel F. Nadeau; Marc Diebold; A. Porporato; Guillermo Barrenetxea; François Ingelrest; Martin Vetterli; Marc B. Parlange


EGU 2012 | 2012

Application of a meteorological wireless sensor network to a small alpine watershed

Raphaël Mutzner; Guillermo Barrenetxea; Steven Vincent Weijs; Silvia Simoni; Martin Vetterli; Marc B. Parlange


European geosciences union general assembly | 2011

Automated Model-driven Simulation and Visualization of Field Sensor Data

Thanasis G. Papaioannou; Sofiane Sarni; Karl Aberer; Silvia Simoni; Marc B. Parlange; Mathias Bavay; Michael Lehning


Archive | 2010

Understanding the interaction of diurnal circulation patterns and local turbulent fluxes in an Alpine environment

Eric R. Pardyjak; Silvia Simoni; Marc Calaf; Romain Mage; Marc B. Parlange


Archive | 2010

Spatially distributed hydrologic response in a small catchment in the Swiss Alps

S. Fernandez; Silvia Simoni; Andrea Rinaldo; Matthew Daniels; Marc B. Parlange


Archive | 2010

Impact of spatial heterogeneity of meteorological forcing on soil moisture redistribution over complex terrain

S. Fernandez; Silvia Simoni; Marc B. Parlange


Archive | 2010

Different sensitivity of streamflow components to spatial variability in complex topography

Silvia Simoni; Amilcare Porporato; Simone A. Padoan; Marc B. Parlange


Archive | 2009

Stable isotope variability in snow on an alpine glacier in Switzerland

Michael S. Town; Von P. Walden; Hendrik Huwald; Chad William Higgins; Daniel F. Nadeau; Silvia Simoni; Marc B. Parlange

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Guillermo Barrenetxea

École Polytechnique Fédérale de Lausanne

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Martin Vetterli

École Polytechnique Fédérale de Lausanne

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François Ingelrest

École Polytechnique Fédérale de Lausanne

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Hendrik Huwald

École Polytechnique Fédérale de Lausanne

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Marc Diebold

École Polytechnique Fédérale de Lausanne

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