An Object-Oriented Multiscale Verification Scheme

• DOI: 10.1175/2009waf2222245.1
• Publication Date: 2009-08-05T15:37:25Z
• Authors: Steven A. Lack; George L. Limpert; Neil I. Fox
• Keywords: 01 natural sciences; 025; 620; 0105 earth and related environmental sciences

Abstract Object-oriented verification methodology is becoming more and common in the evaluation of model performance on high-resolution grids. The research herein describes an advanced version object-oriented approach that involves a combination object identification multiple scales with Procrustes shape analysis techniques. multiscale technique relies heavily novel Fourier transform to associate signals within convection different spatial scales. Other features this new scheme include using weighted cost function can be user defined for matching criteria, delineating objects are linear character from those cellular, tagging matches as hits, misses, or false alarms. Although contains identifying convective objects, standard minimum intensity size thresholds set when desirable. method was tested part intercomparison experiment utilizing synthetic data real cases Storm Prediction Center (SPC)/NSSL Weather Research Forecasting (WRF) Spring Program 2005. resulting metrics, including error measures differences matched due displacement, dilation, rotation, intensity, these run through new, robust shown.