Using MODE to explore the spatial and temporal characteristics of cloud cover forecasts from high‐resolution NWP models

• DOI: 10.1002/met.1393
• Publication Date: 2013-05-22T16:59:20Z
• Authors: M. P. Mittermaier; R. Bullock
• Keywords: Mode (computer interface)

ABSTRACT Cloud forecasts pose a particularly difficult challenge to verification through the three‐dimensional structure of cloud. Two‐dimensional total cloud from one convection‐permitting and near‐convection‐resolving N umerical W eather P rediction ( NWP ) model are compared analysis using M ethod for O bject‐based D iagnostic E valuation MODE T ime omain TD which is currently being developed also consider time dimension. This study attempts quantify spatial temporal evolution specifically persistent (static) systematic scenarios where boundaries change only slowly. These can lead significant temperature errors if locations these not well forecast. used identify compare number free objects, their over in terms area or volume. The results show that including dimension provides different perspective assessment, but choice method‐specific parameters critical enabling matching objects. Crucially, model‐relative behaviour be isolated, specific characteristics analyses quantifiable, need accounted when interpreting results. Copyright © 2013 Royal Meteorological Society British Crown copyright, Met Office