MeteoSwiss - Climate reports

Selection of actual reports, publications, progress reports of MeteoSwiss on climate

Most reports are written in german.

Digitization and homogenization of historical climate series
Learning from the past, for the future. Homogeneous historical climate series are regarded as an important reference for research into climate change. Within the project DigiHom (2007-2011) time series of temperature, precipitation and sunshine duration of all Swiss NBCN-stations are digitized from historical documents. Afterwards influences on data series not caused by climatological factors, such as site relocation, were eliminated (homogenized).

Digitalisieren und Homogenisieren von historischen Klimadaten des Swiss NBCN - Resultate aus DigiHom. Arbeitsbericht der MeteoSchweiz Nr. 236 (12/2011)

Swiss Climate Scenarios CH2011

Together with four partner instituts MeteoSwiss has generated the newest Swiss Climate Change Scenarios CH2011 which provide a new assessment of how climate may change over the 21st century in Switzerland. See also Swiss Climate Scenarios CH2011

Publication of Center for Climate Systems Modeling (C2SM), MeteoSwiss, Institut for Atmosphere and Climat ETH Zurich, National Centre of Competence in Research on Climate - NCCR Climate and the Advisory Body on Climate Change (Organe consultatif sur les changements climatiques, OcCC) (09/2011)
Report_Scenarios_CH2011.pdf, 56.2 MB

Icing frequency

Based on the analyses of the weather forecast model COSMO-2 a map of the icing frequency has been compiled. The evaluation of icing risk for meteorological instruments or other structures can be estimated qualitatively and helps for the planning of wind energy projects.
Icing frequency

Publication of the Swiss Federal Office of Energy SFOE wirt contributions of Meteotest, MeteoSwiss and WSL Institute for Snow and Avalanche Research SLF (05/2010)
Map of the icing frequency

Floods of August 2007

Severe and extensive rainfall caused flooding on August 8 and 9, 2007, particularly in the three-lakes area, the Central Plateau and in northwestern Switzerland.

Meteorological analysis of the floods of August 8-9, 2007
Arbeitsbericht der MeteoSchweiz Nr. 222 (2008)
Publication of the Federal Office for the Environment FOEN with collaboration of MeteoSwiss
Ereignisanalyse Hochwasser August 2007 (01/2010)

The frequency of extreme wind speeds in Switzerland

Wind storms are among the most important natural hazards in our country. In December 1999, storm Lothar caused considerable damage. How often are extreme wind speeds likely to happen in Switzerland? The frequency of an extreme wind event can be modelled in statistical terms. (08/2009)
The frequency of extreme wind speeds in Switzerland

Climate report of Kanton Graubünden

On behalf of the Office "Natur und Umwelt Graubünden" MeteoSwiss has analysed the climate change in Graubünden. The report shows, that different climate elements have significantly changed even in Graubünden. During the last 100 years temperature has risen about 1 – 2°C. Actual national climate scenarios pre-estimate another 2 – 3°C until 2050. (07/2009)
Arbeitsbericht der MeteoSchweiz Nr. 228

2008 and climate change

A lot of people remember the year 2008 rather cool. In contrast to that the analysis of MeteoSwiss demonstrates that 2008 was about 1°C warmer than normal. What is "normal" during times the climate changes globally? (03/2009)
2008 and climate change

Climate change is a fact - and now?

The most important results of the IPCC Fourth Assessment Report (2007) from a Swiss perspective, Report of OcCC with collaboration of MeteoSwiss.
Download the report in german:
Das Klima ändert – was nun? (OcCC)

Climate change and Switzerland 2050

Report of OcCC in collaboration with ProClim and MeteoSwiss.
Climate change and Switzerland 2050 (11/2008)
In the framework of this report a regional climate scenario was calculated. (11/2004, in german)
OcCC 2005: Die Klimazukunft der Schweiz - Eine probabilistische Projektion.pdf, 282 KB
Szenarios 2050

Extremly precipitation August 2005

Extremely precipitation event in August 2005. Arbeitsbericht der MeteoSchweiz Nr. 211
Transnational precipitation analysis for the August flooding 2005, in addition to Arbeitsbericht 211. Arbeitsbericht der MeteoSchweiz Nr. 213
Möglichkeit und Grenzen der Niederschlagsanalyse zum Hochwasser 2005,
Arbeitsbericht der MeteoSchweiz Nr. 221 (12/2008)
Publication of the Federal Office for the Environment FOEN
Ereignisanalyse Hochwasser 2005.
Teil 1: Prozesse, Schäden und erste Einordnungen. 2007. 215 S.
Teil 2: Analyse von Prozessen, Massnahmen und Gefahrengrundlagen. 2008. 426 S.

Extreme summer heat 2003

The extreme weather conditions in 2003, focus on summer heat June to August.
Arbeitsbericht der MeteoSchweiz Nr. 200
Impact of the summer heat 2003 on waterbodies. Documentation of FOEN with colaboration of MeteoSwiss. Hitze 2003 und Gewässer