The proper knowledge of spatial precipitation structure is important as muchas that of microphysics processes for reliable quantitative precipitationforecasts. This study considers some aspects of how precipitation isorganized on meso- and fine-scales, within a cold front line and howmoisture transport is driven by these structures. Also, a spectral spacevision of the representativeness error is proposed, which highlightsuncertainties arising on the scales lying between resolutions of differentnetworks. This approach is used to explain an improper simulation ofhumidity and precipitation fields in models whose resolution is coarser thanthe scales being considered.
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