Theory of non-orthogonalization and spatial localization for convection-allowing ensemble forecast

Convection-allowing ensemble forecasting has significant research and application value, and the initial perturbation generation method plays an important role in the improvement of its accuracy. Recently, a research group led by Chaohui Chen from National University of Defense Technology proposed a new method to generate initial perturbation with full consideration of the strong locality of a convective weather system. The experimental results confirm that it can improve the effect of convection-allowing ensemble forecasting. This innovative research has been published in Science China Earth Sciences.