A Method for Calibrating Deterministic Forecasts of Rare Events

作者:Marsh Patrick T*; Kain John S; Lakshmanan Valliappa; Clark Adam J; Hitchens Nathan M; Hardy Jill
来源:Weather and Forecasting, 2012, 27(2): 531-538.
DOI:10.1175/WAF-D-11-00074.1

摘要

Convection-allowing models offer forecasters unique insight into convective hazards relative to numerical models using parameterized convection. However, methods to best characterize the uncertainty of guidance derived from convection-allowing models are still unrefined. This paper proposes a method of deriving calibrated probabilistic forecasts of rare events from deterministic forecasts by fitting a parametric kernel density function to the model%26apos;s historical spatial error characteristics. This kernel density function is then applied to individual forecast fields to produce probabilistic forecasts.

  • 出版日期2012-4