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Generation of high-temporal resolution QPEs through temporal interpolation of radar images: Evaluation over multiple spatial-scales

Abstract:

Radar quantitative precipitation estimates (QPEs) are playing an increasingly important role in urban hydrology due to their better description of the spatial and temporal characteristics of rainfall. However, the operational radar QPE products provided by national weather services (typically at 1 km/5-10 min resolution) still fail to meet the stringent resolution requirements of urban hydrologi-cal applications. While the spatial and temporal resolution of rainfall inputs are strongly related, recent studies suggest that the latter generally constitutes a more critical factor and that temporal resolutions of ∼1-2 min are required for urban hydrological applications, while spatial resolutions of ∼1 km appear to be sufficient (Ochoa-Rodríguez et al., 2015).