Slide 1 CLOUDS AND STORMS PROJECT ATHENA Very high resolution global climate simulations with the...

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Slide 3 The value of higher resolution  Many features of the real atmosphere are still grossly under-resolved in models (especially for ensemble systems and in severe weather conditions)  Errors from under-resolved scales affect the entire spectrum of motions  Increases in resolution lead to reduced systematic errors and better kinetic energy spectra  More observations can be used at higher resolution, and more information can be extracted from observations  Resolution increases have accounted for a significant proportion of past improvements in forecast skill CAS2K7 Lecture