Abstract: ecent work has suggested that modest initial relative errors on scales of O(100) km in a numerical weather forecast may exert more control on the predictability of mesoscale convective systems at lead times beyond about 5 ...

Abstract: ne important limitation on the accuracy of weather forecasts is imposed by unavoidable errors in the specification of the atmosphere?s initial state. Much theoretical concern has been focused on the limits to predictability ...

Abstract: AbstractIdealized ensemble simulations of mesoscale convective systems (MCSs) with horizontal grid spacings of 1, 1.4, and 2 km are used to analyze the influence of numerical resolution on the rate of growth of ensemble ...

Abstract: AbstractSpectra are often computed from gridded data to determine the horizontal-scale dependence of quantities such as kinetic energy, vertical velocity, or perturbation potential temperature. This paper discusses several ...