Short duration extreme precipitation

Sector Infrastructure
Description Statistical characterization of extreme short-duration precipitation
End User water services, city planners and consultants dealing with design and management of infrastructure sensitive to pluvial flooding.
Calculation method ID Title Period Statistical processing Unit Threshold Comment
maxprec Maximum precipitation intensity Selected accumulation periods (AP) from 15 min to 24 h Find the maximum value for each AP in each month during the 5-year period, calculate 5- year averages mm AP-1  

 

Provenance This indicator is based on output from the Harmonie meteorological modell.
Validation The simulations made by HARMONIE-AROME in Urban SIS has been validated against observations in Urban SIS deliverable 5.1, where an overview is given in Table 4.  
Validation The simulations made by HARMONIE-AROME in Urban SIS has been validated against observations in Urban SIS deliverable 5.1, where an overview is given in Table 4. For precipitation a more extensive analysis have been made in section 4.2. For intense precipitation a more extensive validation is done in Urban SIS deliverable 5.3, where in particular section 4.1.2. gives a more in depth validation for precipitation patterns and intensity.
Calculation caveats Spatial representation: S6 (grid cell average value)
Other caveats: 
Could be compared to: C5 (high resolution observation precipitation)
Could be used with: U4 (flood risc assessment)
Motivation

To evaluate any spatial dependencies in precipitation extremes, caused by e.g. topography or urbanization.

Experience user  
References  Frei C, R Schöll, S Fukutome, J Schmidli, PL Vidale 2006: Future change of precipitation extremes in Europe: Intercomparison of scenarios from regional climate models, J. Geophys. Res., 111, D06105, doi:10.1029/2005JD005965.