Exploring patterns in precipitation intensity–duration–area–frequency relationships using weather radar data

Abstract 2) across the study area, using ellipses of varying axes and orientations to account for the spatial component of storms. 2 are generally comparable to those derived from averaging daily rain gauge data over a similar areal scale. We then analyse differences in multi-scale extreme precipitation over coastal, mountainous, and desert regions. Our study reveals that the power-law scaling relationship between precipitation and duration (simple scaling) weakens for increasing area sizes. This finding has implications for temporal downscaling. Additionally, precipitation intensity varies significantly for different area sizes at short durations but becomes more similar at long durations, suggesting that, in the region, areal reduction factors may not be necessary for computing return levels over long durations. Furthermore, the reverse orographic effect, which causes decreased precipitation for hourly and sub-hourly durations, diminishes for larger areas. Finally, we discuss the effects of orography and coastline proximity on extreme precipitation intensity over different spatial–temporal scales.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Exploring patterns in precipitation intensity–duration–area–frequency relationships using weather radar data ; volume:28 ; number:15 ; year:2024 ; pages:3549-3566 ; extent:18 ; Hydrology and earth system sciences ; 28, Heft 15 (2024), 3549-3566 (gesamt 18)

Contributors, Places and Time

• Creator: Rosin, Talia ; Marra, Francesco ; Morin, Efrat

Further information

• DOI: 10.5194/hess-28-3549-2024
• URN: urn:nbn:de:101:1-2408080418001.505103122627
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 11:01 AM CEST