This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1007/s00382-018-4147-x in citations.
Please use the identifier: http://hdl.handle.net/2128/23757 in citations.
Evaluation and projected changes of precipitation statistics in convection-permitting WRF climate simulations over Central Europe
Evaluation and projected changes of precipitation statistics in convection-permitting WRF climate simulations over Central Europe
We perform simulations with the WRF regional climate model at 12 and 3 km grid resolution for the current and future climates over Central Europe and evaluate their added value with a focus on the daily cycle and frequency distribution of rainfall and the relation between extreme precipitation and a...
Saved in:
Personal Name(s): | Knist, Sebastian (Corresponding author) |
---|---|
Goergen, Klaus / Simmer, Clemens | |
Contributing Institute: |
Agrosphäre; IBG-3 |
Published in: | Climate dynamics, 55 (2020) S. 325-341 |
Imprint: |
Berlin
Springer
2020
|
DOI: |
10.1007/s00382-018-4147-x |
Document Type: |
Journal Article |
Research Program: |
European Long-Term Ecosystem and socio-ecological Research Infrastructure Terrestrial Systems: From Observation to Prediction |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/23757 in citations.
We perform simulations with the WRF regional climate model at 12 and 3 km grid resolution for the current and future climates over Central Europe and evaluate their added value with a focus on the daily cycle and frequency distribution of rainfall and the relation between extreme precipitation and air temperature. First, a 9 year period of ERA-Interim driven simulations is evaluated against observations; then global climate model runs (MPI-ESM-LR RCP4.5 scenario) are downscaled and analyzed for three 12-year periods: a control, a mid-of-century and an end-of-century projection. The higher resolution simulations reproduce both the diurnal cycle and the hourly intensity distribution of precipitation more realistically compared to the 12 km simulation. Moreover, the observed increase of the temperature–extreme precipitation scaling from the Clausius–Clapeyron (C–C) scaling rate of ~ 7% K−1 to a super-adiabatic scaling rate for temperatures above 11 °C is reproduced only by the 3 km simulation. The drop of the scaling rates at high temperatures under moisture limited conditions differs between sub-regions. For both future scenario time spans both simulations suggest a slight decrease in mean summer precipitation and an increase in hourly heavy and extreme precipitation. This increase is stronger in the 3 km runs. Temperature–extreme precipitation scaling curves in the future climate are projected to shift along the 7% K−1 trajectory to higher peak extreme precipitation values at higher temperatures. The curves keep their typical shape of C–C scaling followed by super-adiabatic scaling and a drop-off at higher temperatures due to moisture limitation. |