Reports on trials of the imperial college/university college London disaggregation scheme
Standing R.J.
Editeur
Met Office
Année de publication
2000
The Nimrod precipitation nowcasting scheme merges output from the UM rainfall forecast with an advection forecast from radar data. Since the former is on a 15 km grid and the latter on 5 km, this leads to unrealistic-looking rainfall patterns. In particular, the forecast coverage is too large and the peak rainrates are not forecast in areas where the UM forecast is used. Chandler et al (1997) set out a method of producing a more realistic distribution using existing data on sub-gridscale rainrate patterns. This report outlines the testing that it has undergone since then and outlines improvements that could still be made.
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