An improved multivariable integrated evaluation method and tool (MVIETool) v1.0 for multimodel intercomparison

Abstract. An evaluation of a model's overall performance in simulating multiple fields is fundamental to model intercomparison and development. A multivariable integrated (MVIE) method was proposed previously based on vector field (VFE) diagram, which can provide quantitative comprehensive fields. In this study, we make further improvements from the following aspects. (1) We take area weighting into account definition statistics VFE diagram MVIE method, particularly important for global evaluation. (2) consider combination scalar against alone previous method. (3) skill score (MISS) as flexible index measure ability simulate Compared with (MIEI) MISS normalized that adjust relative importance different aspects performance. (4) simple-to-use straightforward tool, Multivariable Integrated Evaluation Tool (MVIETool version 1.0), developed facilitate an various models. Users use tool coded either open-source NCAR Command Language (NCL) or Python3 calculate plotting. With support one easily evaluate terms each individual variable and/or variables.