Simon C. Scherrer
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Climate scenarios for Switzerland: How to provide seamless information by bridging models and observations? Open
National climate scenarios reflecting the current scientific state of knowledge are an indispensable basis for public and private sectors to plan and design adaptation and mitigation measures. Regional or even local assessments of future c…
Tailored Weather and Climate Services for Energy Management: Lessons Learned from Introducing a New Energy Bulletin  Open
Switzerland's current Energy Strategy 2050 pursues two key objectives: Abandoning nuclear power plants in the long term and supporting climate policy that implements measures to achieve the goals of the Paris Climate Change Agreement, whic…
The observed evolution of sub‐daily to multi‐day heavy precipitation in Switzerland Open
Heavy precipitation is a major natural hazard in the Alps. Understanding the possible changes due to climate change is a prerequisite for effective climate adaptation and protection. In this study, we revisit the long‐term (1901–2023) evol…
GLIDS: A Global Latency Information Dissemination System Open
A recent advance in networking is the deployment of path-aware multipath network architectures, where network endpoints are given multiple network paths to send their data on. In this work, we tackle the challenge of selecting paths for la…
Electromechanical properties of uniaxial polar ionic plastic crystal [(C<sub>2</sub>H<sub>5</sub>)<sub>4</sub>N][FeBrCl<sub>3</sub>] Open
Ferroelectric plastic crystals are an emerging class of materials that combine room temperature ferroelectricity and piezoelectricity with a high temperature plastic mesophase prior to melting. These materials offer possibilities for acces…
Response of alpine ground temperatures to a rising atmospheric 0 °C isotherm in the period 1955–2021 Open
Ground temperatures in alpine terrain vary considerably over short distances, particularly due to differences in elevation and incoming short-wave radiation but also snow and surface conditions. To allow for direct cross-site, interregiona…
The observed evolution of sub-daily to multi-day heavy precipitation in Switzerland Open
Heavy precipitation events and their changes due to climate change affect many aspects of daily life in the Alpine region. In this study, we revisit the long-term (1901-2022) evolution of daily and multi-day heavy precipitation intensity a…
Estimating trends and the current climate mean in a changing climate Open
Describing the climate evolution using trend lines and estimating the current climate mean (CCM) on the local scale is an important climate service. For an increasing number of variables, accelerating climate change disqualifies the use of…
Towards a spatial snow climatology for Switzerland: Comparison and validation of existing datasets Open
In the European Alps, surface snow cover is of high relevance and a major factor for environmental, ecological and economical systems. The provision of accurate and timely climatological information on the spatio-temporal distribution of A…
Swiss climate scenarios – an ongoing journey Open
Consistent and up-to-date national climate scenarios are an indispensable basis for public and private sectors to plan and design adaptation and mitigation measures. Regional or even local assessments of future climate change are therefore…
On the statistical distribution of temperature and the classification of extreme events considering season and climate change—an application in Switzerland Open
With the increased occurrence of hot spells in recent years, there is growing interest in quantifying the recurrence of extreme temperature events. However, pronounced temperature anomalies occur all year round, and a reliable classificati…
Quality Competition Among Internet Service Providers Open
Internet service providers (ISPs) have a variety of quality attributes that determine their attractiveness for data transmission, ranging from quality-of-service metrics such as jitter to security properties such as the presence of DDoS de…
View article: Dieback events of Scots pines caused by lack of rain in mid and late summer
Dieback events of Scots pines caused by lack of rain in mid and late summer Open
Same as other parts of Europe, the inner-Alpine Swiss Rhône valley has been increasingly affected by Scots pine (Pinus sylvestris L.) dieback events since the 1990s. Such events were not confined to years of extreme heat and drought a…
Carbon-Intelligent Global Routing in Path-Aware Networks Open
The growing energy consumption of Information and Communication Technology (ICT) has raised concerns about its environmental impact. However, the carbon efficiency of data transmission over the Internet has so far received little attention…
Model-Based Insights on the Performance, Fairness, and Stability of BBR Open
Google's BBR is the most prominent result of the recently revived quest for efficient, fair, and flexible congestion-control algorithms (CCAs). While the performance of BBR has been investigated by numerous studies, previous work still lea…
Classification of extreme temperature events in the presence of seasonality and climate change  Open
<p>The knowledge on air temperature and its statistical characteristics is of great interest for a variety of applications. With the increased occurrence of hot spells in recent years, there is a growing interest in determining the r…
Estimating the current climate mean state at regional to local scales Open
<p>Determining the current climate mean state (CCMS) on the regional and local scale is an important task of climate monitoring. The CCMS and the long-term climate change signal derived from it are relevant for a wide range of users.…
Below Average Midsummer to Early Autumn Precipitation Evolved Into the Main Driver of Sudden Scots Pine Vitality Decline in the Swiss Rhône Valley Open
The vitality of Scots pine ( Pinus sylvestris L.) is declining since the 1990s in many European regions. This was mostly attributed to the occurrence of hotter droughts, other climatic changes and secondary biotic stressors. However, it is…
Trends and drivers of recent summer drying in Switzerland Open
The Alpine region recently experienced several dry summers with important and adverse impacts on economy, society and ecology. Here, we analyse drought indicators, evapotranspiration and meteorological data from point observations, reanaly…
An Axiomatic Perspective on the Performance Effects of End-Host Path Selection Open
In various contexts of networking research, end-host path selection has recently regained momentum as a design principle. While such path selection has the potential to increase performance and security of networks, there is a prominent co…
Summer drought in Switzerland 1981‒2020: Events, trends and drivers Open
<p>The Alpine region has recently experienced several dry summers with negative impacts on the economy, society and ecology. Here, soil water, evapotranspiration and meteorological data from several observational and model-based data…
The Swiss snow climatology as seen by reanalyses and further gridded datasets Open
<p>Snow cover is a key component of alpine environments and knowledge of its spatiotemporal variability, including long-term trends, is vital for a range of dependent systems like winter tourism, hydropower production, etc. Snow cove…
How to determine the current state of the climate? Open
<p>Determining the current state of the climate is a core task of climate monitoring and climate information in every climate service department. Traditionally, averages over a recent 30-year period, so called climate normals, are us…
The Swiss Alpine zero degree line: methods, past evolution, sensitivities Open
<p>The near-surface zero degree line (ZDL) is a key isotherm in mountain regions worldwide, but a detailed analysis of methods for the ZDL determination, their properties and applicability in a changing climate is missing. We here te…
The Swiss Alpine zero degree line: Methods, past evolution and sensitivities Open
The near‐surface zero degree line (ZDL) is a key isotherm in mountain regions worldwide, but a detailed analysis of methods for the ZDL determination, their properties and applicability in a changing climate is missing. We here test differ…
Observed snow depth trends in the European Alps: 1971 to 2019 Open
The European Alps stretch over a range of climate zones which affect the spatial distribution of snow. Previous analyses of station observations of snow were confined to regional analyses. Here, we present an Alpine-wide analysis of snow d…
Low-Rate Overuse Flow Tracer (LOFT): An Efficient and Scalable Algorithm\n for Detecting Overuse Flows Open
Current probabilistic flow-size monitoring can only detect heavy hitters\n(e.g., flows utilizing 10 times their permitted bandwidth), but cannot detect\nsmaller overuse (e.g., flows utilizing 50-100% more than their permitted\nbandwidth). …
Observed snow depth trends in the European Alps 1971 to 2019 Open
The European Alps stretch over a range of climate zones, which affect the spatial distribution of snow. Previous analyses of station observations of snow were confined to regional analyses. Here, we present an Alpine wide analysis of snow …