Value of high resolution forecasts: convective climatology point of view

摘要

@@ 1. Introduction The current state of the art in numerical models for weather prediction and the accessibility of computing power makes it possible to a larger meteorological community to obtain, run and produce high resolution forecasts. These forecasts are only limited by computed power and initial conditions, whereas papers about their quality can be found in the literature. From parameterization to explicit schemes in convection, still more computing is needed as well as nested domains into mesoscale models. The National Weather Service of Argentina has been running operationally a 30km resolution ETA model since 2003 and a nested non hydrostatic 1Okm one since 2006. The later is only available in (1O°x10°) box centered on high density and rich region of Argentina where high precipitation events are frequent. Non explicit convection model schemes are run at this center in operational basis although some attempts are performed in experimental mode.