Advances in Earth Science ›› 2014, Vol. 29 ›› Issue (3): 327-335. doi: 10.11867/j.issn.1001-8166.2014.03.0327

• Orginal Article • Previous Articles     Next Articles

Progress on Verification Methods of Numerical Weather Prediction

Liujie Pan 1, Hongfang Zhang 2, Jianpeng Wang 1   

  1. 1.Shaanxi Meteorological Observatory, Xi’an 710014, China
    2.Shaanxi Meteorological Service Centre, Xi’an 710014, China
  • Received:2014-01-07 Revised:2014-02-24 Online:2014-03-20 Published:2014-03-10

Liujie Pan, Hongfang Zhang, Jianpeng Wang. Progress on Verification Methods of Numerical Weather Prediction[J]. Advances in Earth Science, 2014, 29(3): 327-335.

The numerical weather prediction verification is a key step to improving applied numerical models. In recent years, the concepts used in model verification have been updated constantly and the model verification approaches fit for different prediction products and meeting the needs of different customers have proposed continuously. First, this research gives a brief overview of traditional model verification methods based on contingency table. Second, the spatial verification technology along with high resolution numerical prediction is illustrated. According to different purposes, the spatial verification methods can mostly be classified into two general categories: filtering methods and displacement methods. The filtering methods can be further delineated into neighborhood and scale separation, and the displacement methods can be divided into features-based ones and field deformations. Third, the probability distribution function of ensemble prediction sample members, the similar degrees between probability distribution function of ensemble prediction and the observation distribution function, the probability of an event occurring and such ensemble prediction verification methods are described. Finally, the fields where spatial verification technology and ensemble prediction verification methods can be used are analyzed and some problems concerning model verification and the direction in which these technologies will go are discussed.

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