Jean-Michel Fallot
Dr. Jean-Michel Fallot
retired
Climatologie
Institut de Géographie et Durabilité (IGD)Université de LausanneUNIL Mouline - Géopolis
CH-1015 Lausanne
Switzerland
Phone: +41 (0) 21 692 30 70
Fax: +41 (0) 21 692 35 55
E-mail:
jean-michel.fallot(at)unil.chURL Institution:
www.unil.ch/igd
Expertise of Jean-Michel Fallot:
Expertise Category | Specific Expertise |
---|
Expert Type | Scientific / Fundamental Research |
Scope | Process Studies |
Topic Atmosphere | Meteorology |
| Climate |
| Air Pollution |
Topic Hydrosphere | Precipitation / Runoff |
Topic Cryosphere | Snow Cover |
Topic Risk & Disaster Management | Risk Assessment / Forecasting |
Spatial Zones | Mountain / Highland |
| Urban |
| Rural |
Spatial Scale | Regional |
| National / Cultural |
| Local / Community |
Time Frame | Recent / Today |
Statistical Focus | Extreme Events |
| Mean Change / Trends |
| Variability |
Time Scale | Seasonal / Annual |
| Decadal / Centennial |
Methods | Data Collection - Measurement |
| Data Analysis |
| Modeling |
Specialties of Jean-Michel Fallot:
Assessment of extreme precipitation and winds in Switzerland with statistical analyses and regional modelling.
Extreme precipitation and winds were determined in Switzerland with Gumbel analyses and a three-dimensional meteorological model in order to define the ideal dimensions of protection structure against floodings and wind gusts. This study confirms that daily extreme precipitation values have increased in most locations of Switzerland in connection with the global climate warming.
Daily extreme precipitation values for a return period of 500 years were determined at 429 locations in Switzerland from Gumbel analyses carried out on rainfall time-series over the period 1961-2010. These extreme daily precipitation values are in average 14% higher than those previously calculated by the WSL (Swiss Federal Institute for Forest, Snow and Landscape Research) from rainfall time-series over the period 1901-1970. Extreme wind gusts for a return period of 50 years were also estimated at 70 locations in Switzerland from Gumbel analyses on time-series over the period 1981-2001. But extreme values can only be known at precise locations from these statistical analyses. Thus a three-dimensional meteorological model was developed for calculating extreme winds and precipitation every 2 km at the horizontal scale in Switzerland. Results of the model were compared with extreme precipitation and wind values estimated from statistical analyses carried out on time-series. This comparison shows a quite good agreement between the model and extreme values.
Last update: 1/29/24
Source of data: ProClim- Research InfoSystem (1993-2024)
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