WRF User's Workshop Assessment of the WRF Model for Use in Regional Predictability Studies Joshua P. Hacker and Dave P. Baumhefner (NCAR) Motivation Approach.

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Presentation transcript:

WRF User's Workshop Assessment of the WRF Model for Use in Regional Predictability Studies Joshua P. Hacker and Dave P. Baumhefner (NCAR) Motivation Approach  building a house Early results Future directions

WRF User's Workshop Why Care? Understand the capabilities and limitations of a current-generation grid point LAM Create a stronger foundation for regional predictability studies To what extent can we treat WRF as a proxy for the real atmosphere?

WRF User's Workshop Building a House Lateral boundaries Mesoscale predictability Resolution Scale interaction WRF

WRF User's Workshop Comparison With Unbounded Model WRF on hemispheric domain vs. CCM3 90 km at 45°N vs. T member ensembles Perturbations follow Errico-Baumhefner 6-day forecasts 4-5 winter cases chosen from different regimes

WRF

CCM3

WRF

WRF User's Workshop Future Directions Establish a valid perfect-model study region in (resolution, domain, forecast length) space Observation system experiments Confident predictability studies of mesoscale phenomena

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