--- _id: '9140' abstract: - lang: eng text: 'Expected changes to future extreme precipitation remain a key uncertainty associated with anthropogenic climate change. Extreme precipitation has been proposed to scale with the precipitable water content in the atmosphere. Assuming constant relative humidity, this implies an increase of precipitation extremes at a rate of about 7% °C−1 globally as indicated by the Clausius‐Clapeyron relationship. Increases faster and slower than Clausius‐Clapeyron have also been reported. In this work, we examine the scaling between precipitation extremes and temperature in the present climate using simulations and measurements from surface weather stations collected in the frame of the HyMeX and MED‐CORDEX programs in Southern France. Of particular interest are departures from the Clausius‐Clapeyron thermodynamic expectation, their spatial and temporal distribution, and their origin. Looking at the scaling of precipitation extreme with temperature, two regimes emerge which form a hook shape: one at low temperatures (cooler than around 15°C) with rates of increase close to the Clausius‐Clapeyron rate and one at high temperatures (warmer than about 15°C) with sub‐Clausius‐Clapeyron rates and most often negative rates. On average, the region of focus does not seem to exhibit super Clausius‐Clapeyron behavior except at some stations, in contrast to earlier studies. Many factors can contribute to departure from Clausius‐Clapeyron scaling: time and spatial averaging, choice of scaling temperature (surface versus condensation level), and precipitation efficiency and vertical velocity in updrafts that are not necessarily constant with temperature. But most importantly, the dynamical contribution of orography to precipitation in the fall over this area during the so‐called “Cevenoles” events, explains the hook shape of the scaling of precipitation extremes.' article_processing_charge: No article_type: original author: - first_name: P. full_name: Drobinski, P. last_name: Drobinski - first_name: B. full_name: Alonzo, B. last_name: Alonzo - first_name: S. full_name: Bastin, S. last_name: Bastin - first_name: N. Da full_name: Silva, N. Da last_name: Silva - first_name: Caroline J full_name: Muller, Caroline J id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b last_name: Muller orcid: 0000-0001-5836-5350 citation: ama: 'Drobinski P, Alonzo B, Bastin S, Silva ND, Muller CJ. Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape? Journal of Geophysical Research: Atmospheres. 2016;121(7):3100-3119. doi:10.1002/2015jd023497' apa: 'Drobinski, P., Alonzo, B., Bastin, S., Silva, N. D., & Muller, C. J. (2016). Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape? Journal of Geophysical Research: Atmospheres. American Geophysical Union. https://doi.org/10.1002/2015jd023497' chicago: 'Drobinski, P., B. Alonzo, S. Bastin, N. Da Silva, and Caroline J Muller. “Scaling of Precipitation Extremes with Temperature in the French Mediterranean Region: What Explains the Hook Shape?” Journal of Geophysical Research: Atmospheres. American Geophysical Union, 2016. https://doi.org/10.1002/2015jd023497.' ieee: 'P. Drobinski, B. Alonzo, S. Bastin, N. D. Silva, and C. J. Muller, “Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape?,” Journal of Geophysical Research: Atmospheres, vol. 121, no. 7. American Geophysical Union, pp. 3100–3119, 2016.' ista: 'Drobinski P, Alonzo B, Bastin S, Silva ND, Muller CJ. 2016. Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape? Journal of Geophysical Research: Atmospheres. 121(7), 3100–3119.' mla: 'Drobinski, P., et al. “Scaling of Precipitation Extremes with Temperature in the French Mediterranean Region: What Explains the Hook Shape?” Journal of Geophysical Research: Atmospheres, vol. 121, no. 7, American Geophysical Union, 2016, pp. 3100–19, doi:10.1002/2015jd023497.' short: 'P. Drobinski, B. Alonzo, S. Bastin, N.D. Silva, C.J. Muller, Journal of Geophysical Research: Atmospheres 121 (2016) 3100–3119.' date_created: 2021-02-15T14:21:16Z date_published: 2016-03-16T00:00:00Z date_updated: 2022-01-24T13:41:02Z day: '16' doi: 10.1002/2015jd023497 extern: '1' intvolume: ' 121' issue: '7' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1002/2015JD023497 month: '03' oa: 1 oa_version: Published Version page: 3100-3119 publication: 'Journal of Geophysical Research: Atmospheres' publication_identifier: issn: - 2169-897X - 2169-8996 publication_status: published publisher: American Geophysical Union quality_controlled: '1' status: public title: 'Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape?' type: journal_article user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 volume: 121 year: '2016' ...