97 Works

Wood Mobilization Survey

Roland Olschewski, Polia Tzanova, Oliver Thees & Philipp Polosek

2015 Vegetation Height Model NFI

Christian Ginzler
A national vegetation height model was calculated for Switzerland using digital aerial images. We used the stereo aerial images acquired by the Federal Office of Topography swisstopo using the ADS80 sensor to first calculate a digital surface model (DSM) with a very high spatial resolution (1 × 1 m). The DSM was then normalized to obtain the actual vegetation heights using a digital terrain model (DTM) based on laser data with the buildings masked out,...

EnviDat Environmental Data Portal

Ionuț Iosifescu
With the Program EnviDat we develop a unified and managed access portal for WSL's rich reservoir of environmental monitoring and research data. EnviDat is designed as a portal to publish, connect and search across existing data but is not intended to become a large data centre hosting original data. While sharing of data is centrally facilitated, data management remains decentralised and the know-how and responsibility to curate research data remains with the original data providers.

Soil net nitrogen mineralisation across global grasslands

Anita C. Risch, Stephan Zimmermmann, Raul Ochoa-Hueso, Martin Schütz, Beat Frey, Jennifer Firn, Philip A. Fay, Frank Hagedorn, Elizabeth T. Borer, Eric W. Seabloom, W. Stanley Harpole, Johannes M.H. Knops, Rebecca L. McCulley, Arthur A.D. Broadbent, Carly J. Stevens, Maria L. Silveira, Peter B. Adler, Selene V. Báez Jacome, Lori A. Biederman, John M. Blair, Cynthia S. Brown, Maria C. Caldeira, Scott L. Collins, Pedro Daleo, Agustina Di Virgilio … & Barbara Moser

MadCrypto – Bryophyte and macrolichen diversity in laurel forests of Madeira

Steffen Boch, Anabela Martins, Sara Ruas, Susana Fontinha, Palmira Carvalho, Fábio Reis, Ariel Bergamini & Manuela Sim-Sim

2012 Vegetation Height Model NFI

Christian Ginzler
A national vegetation height model was calculated for Switzerland using digital aerial images. We used the stereo aerial images acquired by the Federal Office of Topography swisstopo using the ADS80 sensor to first calculate a digital surface model (DSM) with a very high spatial resolution (1 × 1 m). The DSM was then normalized to obtain the actual vegetation heights using a digital terrain model (DTM) based on laser data with the buildings masked out,...

Eddy-covariance measurements

Lisa Dirks, Sebastian Schlögl, Michael Lehning & Rebecca Mott
This dataset contains eddy-covariance measurements in the ablation period of 2014-2016. Measurements were taken from two turbulence towers over a long-lasting snow patch, which are 5 m apart from each other (2014 and 2015). The turbulence towers were equipped with two YOUNG ultrasonic anemometers mounted 0.7 m (in 2014) and 3.3 m (in 2015) above snow-free ground, two ultrasonic anemometers (CSAT3, Campbell Scientific, Inc.) mounted at 2.6 m (in 2014) and 2.2 m (in 2015)...

IRKIS Soil moisture measurements Davos

Nander Wever
Data from soil moisture stations installed from October 2010 - July 2014 in the area surrounding Davos, in particular in the Dischma catchment.

Manual bi-weekly snow profiles from Weissfluhjoch, Davos, Switzerland.

WSL Institute For Snow And Avalanche Research SLF
Dataset of manual bi-weekly snow profiles from Weissfluhjoch, Davos, Switzerland. Typical snow profile measurements and observations are included (temperature, density, grain size, grain type, hardness, wetness), following the guidelines of the The International Classification for Seasonal Snow on the Ground (ICSSG) [Fierz, C., Armstrong, R.L., Durand, Y., Etchevers, P., Greene, E., McClung, D.M., Nishimura, K., Satyawali, P.K. and Sokratov, S.A. 2009. The International Classification for Seasonal Snow on the Ground. IHP-VII Technical Documents in Hydrology...

Alpine3D simulations of future climate scenarios CH2014

Sebastian Schoegl, Michael Lehning, Matthias Bavay & Christoph Marty
The CH2014-Impacts initiative is a concerted national effort to describe impacts of climate change in Switzerland quantitatively, drawing on the scientific resources available in Switzerland today. The initiative links the recently developed Swiss Climate Change Scenarios CH2011 with an evolving base of quantitative impact models. The use of a common climate data set across disciplines and research groups sets a high standard of consistency and comparability of results. Impact studies explore the wide range of...

Snowfarming Davos and Martell 2015

Thomas Grünewald, Michael Lehning & Fabian Wolfsperger
wo data sets obtained for snow farming projects (Fluela, Davos, CH and Martell, IT) in 2015. The data set contains for each site: 10 cm GIS raster of snow depth calculated from terrestrial laserscanning surveys (TLS) in the end of winter season (April/May) 10 cm GIS raster of snow depth calculated from TLS in the end of summer season (October) Input files for SNOWPACK model: .sno: snow profile at the end of winter .smet: meteorological...

Wind tunnel measurement data of drifting snow and turbulent wind fluctuations

Enrico Paterna & Philip Crivelli
The data correspond to the experiments presented and discussed in a paper regarding the interaction between turbulent wind fluctuations and snow saltation mass-fluxes (Paterna, 2016). Each of the nine data files corresponds to a different experiment presented in the paper and conducted in the winter 2014/2015 in the WSL/SLF cold wind tunnel in Davos. For each file the five columns indicate the time from the beginning of the experiment, the streamwise (u’) and the vertical...

Tree measurements 2002-2016 from the long-term irrigation experiment Pfynwald, Switzerland

Arthur Gessler, Christian Hug, Andreas Rigling, Matthias Haeni & Marcus Schaub
To study the performance of mature Scots pine (_Pinus sylvestris_ L.) under chronic drought conditions in comparison to their immediate physiological response to drought release, a controlled long-term and large-scale irrigation experiment has been set up in 2003. The experiment is located in a xeric mature Scots pine forest in the Pfynwald (46° 18' N, 7° 36' E, 615 m a.s.l.) in one of the driest inner-Alpine valleys of the European Alps, the Valais (mean...

Number of natural hazard fatalities per year in Switzerland since 1946

Snow Swiss Federal Institute For Forest

Vegetation Height Model NFI

Christian Ginzler
A national vegetation height model was calculated for Switzerland using digital aerial images. We used the stereo aerial images acquired by the Federal Office of Topography swisstopo using the ADS80 sensor to first calculate a digital surface model (DSM) with a very high spatial resolution (1 × 1 m). The DSM was then normalized to obtain the actual vegetation heights using a digital terrain model (DTM) based on laser data with the buildings masked out,...

FACE: Stillberg CO2 enrichment and soil warming study

Peter Bebi, Christian Rixen, Melissa Dawes & Frank Hagedorn

DISCHMEX - Meteorological measurements

Sebastian Schlögl, Michael Lehning & Rebecca Mott

Experiments on stable water isotopes, snow metamorphism, and advection

Pirmin P. Ebner & Martin Schneebeli
Stable water isotopes (δ18O) obtained from snow and ice samples of polar regions are used to reconstruct past climate variability, but heat and mass transport processes can affect the isotopic composition. Here we present an experimental study on the effect on the snow isotopic composition by airflow through a snow pack in controlled laboratory conditions. The influence of isothermal and controlled temperature gradient conditions on the δ18O content in the snow and interstitial water vapor...

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